Add repositories

- Make model classes imutable
- Move model classes to common module
- Add repositories for backend and frontend
  - Backend repositories communicates with sqlite
  - Frontend repositories commuincates with rest api
- Add rest api
  - Authentication via cookies
- Add coroutines to forntend
- Add change listener to repositories
- Transmit change events to frontend repositories via websocket
- Switch to server side sessions
- Move setup from ui to cli

.gitignore

@@ -2,6 +2,7 @@
 .idea/
 build/
 web/
+.sessions/
 
 *.swp
 *.swo

build.gradle

@@ -35,7 +35,6 @@ kotlin {
         compilations.all {
             kotlinOptions {
                 freeCompilerArgs += [
-                        "-Xuse-experimental=io.ktor.locations.KtorExperimentalLocationsAPI",
                         "-Xuse-experimental=io.ktor.util.KtorExperimentalAPI"
                 ]
             }
@@ -54,6 +53,7 @@ kotlin {
         commonMain {
             dependencies {
                 implementation kotlin('stdlib-common')
+                implementation "de.westermann:KObserve-metadata:0.9.1"
 
                 implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime-common:$serialization_version"
             }
@@ -72,8 +72,9 @@ kotlin {
 
                 implementation "io.ktor:ktor-server-netty:$ktor_version"
                 implementation "io.ktor:ktor-auth:$ktor_version"
-                implementation "io.ktor:ktor-locations:$ktor_version"
+                implementation "io.ktor:ktor-server-sessions:$ktor_version"
                 implementation "io.ktor:ktor-websockets:$ktor_version"
+                implementation "io.ktor:ktor-jackson:$ktor_version"
                 implementation 'org.jetbrains:kotlin-css-jvm:1.0.0-pre.70-kotlin-1.3.21'
 
                 implementation "io.ktor:ktor-html-builder:$ktor_version"
@@ -83,6 +84,8 @@ kotlin {
 
                 implementation 'org.mindrot:jbcrypt:0.4'
 
+                implementation "de.westermann:KObserve-jvm:0.9.1"
+
                 api 'io.github.microutils:kotlin-logging:1.6.23'
                 api 'ch.qos.logback:logback-classic:1.2.3'
                 api 'org.fusesource.jansi:jansi:1.8'
@@ -155,10 +158,12 @@ task run(type: JavaExec, dependsOn: [jvmMainClasses, jsJar]) {
         ]
     }
     args = []
+    standardInput = System.in
 }
 
 clean.doFirst {
     delete webFolder
+    delete ".sessions"
 }
 
 task jar(type: ShadowJar, dependsOn: [jvmMainClasses, jsMainClasses, sass]) {

src/commonMain/kotlin/de/kif/common/Constants.kt

@@ -1,3 +1,3 @@
-package kif.common.model
+package de.kif.common
 
 const val CALENDAR_GRID_WIDTH = 15

src/commonMain/kotlin/de/kif/common/Message.kt

@@ -0,0 +1,35 @@
+package de.kif.common
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.modules.SerializersModule
+
+@Serializable
+data class Message(
+    val type: MessageType,
+    val repository: RepositoryType,
+    val id: Long
+) {
+
+    fun stringify(): String {
+        return json.stringify(serializer(), this)
+    }
+
+    companion object {
+        private val jsonContext = SerializersModule {}
+
+        val json = Json(context = jsonContext)
+
+        fun parse(data: String): Message {
+            return json.parse(serializer(), data)
+        }
+    }
+}
+
+enum class MessageType {
+    CREATE, UPDATE, DELETE
+}
+
+enum class RepositoryType {
+    ROOM, SCHEDULE, TRACK, USER, WORK_GROUP
+}

src/commonMain/kotlin/de/kif/common/Repository.kt

@@ -0,0 +1,22 @@
+package de.kif.common
+
+import de.kif.common.model.Model
+import de.westermann.kobserve.event.EventHandler
+
+
+interface Repository<T : Model> {
+
+    suspend fun get(id: Long): T?
+
+    suspend fun create(model: T): Long
+
+    suspend fun update(model: T)
+
+    suspend fun delete(id: Long)
+
+    suspend fun all(): List<T>
+
+    val onCreate: EventHandler<Long>
+    val onUpdate: EventHandler<Long>
+    val onDelete: EventHandler<Long>
+}

src/commonMain/kotlin/de/kif/common/model/Color.kt

@@ -1,7 +1,6 @@
-package kif.common.model
+package de.kif.common.model
 
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.Transient
 
 @Serializable
 data class Color(
@@ -21,25 +20,15 @@ data class Color(
         }
     }
 
-    @Transient
+    fun calcRedDouble() = red / 255.0
-    val redDouble
-        get() = red / 255.0
 
-    @Transient
+    fun calcGreenDouble() = green / 255.0
-    val greenDouble
-        get() = green / 255.0
 
-    @Transient
+    fun calcBlueDouble() = blue / 255.0
-    val blueDouble
-        get() = blue / 255.0
 
-    @Transient
+    fun calcLuminance(): Double = 0.2126 * calcRedDouble() + 0.7152 * calcGreenDouble() + 0.0722 * calcBlueDouble()
-    val luminance: Double
-        get() = 0.2126 * redDouble + 0.7152 * greenDouble + 0.0722 * blueDouble
 
-    @Transient
+    fun calcTextColor(): Color = if (calcLuminance() < 0.7) WHITE else BLACK
-    val textColor: Color
-        get() = if (luminance < 0.7) WHITE else BLACK
 
     companion object {
         fun parse(color: String): Color {
@@ -94,3 +83,5 @@ data class Color(
         )
     }
 }
+
+fun String.parseColor() = Color.parse(this)

src/commonMain/kotlin/de/kif/common/model/Language.kt

@@ -0,0 +1,6 @@
+package de.kif.common.model
+
+enum class Language(val code: String, val localeName: String) {
+    GERMAN("DE", "Deutsch"),
+    ENGLISH("EN", "English")
+}

src/commonMain/kotlin/de/kif/common/model/Model.kt

@@ -0,0 +1,3 @@
+package de.kif.common.model
+
+interface Model

src/commonMain/kotlin/de/kif/common/model/Permission.kt

@@ -1,4 +1,4 @@
-package de.kif.backend.model
+package de.kif.common.model
 
 enum class Permission {
     USER, SCHEDULE, WORK_GROUP, ROOM, PERSON, ADMIN

src/commonMain/kotlin/de/kif/common/model/Room.kt

@@ -0,0 +1,11 @@
+package de.kif.common.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Room(
+    val id: Long? = null,
+    val name: String,
+    val places: Int,
+    val projector: Boolean
+) : Model

src/commonMain/kotlin/de/kif/common/model/Schedule.kt

@@ -0,0 +1,12 @@
+package de.kif.common.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Schedule(
+    val id: Long?,
+    val workGroup: WorkGroup,
+    val room: Room,
+    val day: Int,
+    val time: Int
+) : Model

src/commonMain/kotlin/de/kif/common/model/Track.kt

@@ -0,0 +1,10 @@
+package de.kif.common.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Track(
+    val id: Long?,
+    var name: String,
+    var color: Color
+) : Model

src/commonMain/kotlin/de/kif/common/model/User.kt

@@ -0,0 +1,16 @@
+package de.kif.common.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class User(
+    val id: Long?,
+    val username: String,
+    val password: String,
+    val permissions: Set<Permission>
+) : Model {
+
+    fun checkPermission(permission: Permission): Boolean {
+        return permission in permissions || Permission.ADMIN in permissions
+    }
+}

src/commonMain/kotlin/de/kif/common/model/WorkGroup.kt

@@ -0,0 +1,15 @@
+package de.kif.common.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class WorkGroup(
+    val id: Long?,
+    val name: String,
+    val interested: Int,
+    val track: Track?,
+    val projector: Boolean,
+    val resolution: Boolean,
+    val length: Int,
+    val language: Language
+) : Model

src/commonMain/kotlin/kif/common/model/Message.kt

@@ -1,58 +0,0 @@
-package kif.common.model
-
-import kotlinx.serialization.Polymorphic
-import kotlinx.serialization.Serializable
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.modules.SerializersModule
-
-@Serializable
-data class Message(
-    @Polymorphic
-    val message: MessageType
-) {
-
-    fun stringify(): String = Companion.stringify(this)
-
-    companion object {
-
-        private val module = SerializersModule {
-            polymorphic(MessageType::class) {
-                MessageCreateCalendarEntry::class with MessageCreateCalendarEntry.serializer()
-                MessageDeleteCalendarEntry::class with MessageDeleteCalendarEntry.serializer()
-            }
-        }
-
-        private val json = Json(context = module)
-
-        fun stringify(message: Message): String {
-            return json.stringify(serializer(), message)
-        }
-
-        fun parse(message: String): Message {
-            return json.parse(serializer(), message)
-        }
-    }
-}
-
-abstract class MessageType()
-
-@Serializable
-data class MessageCreateCalendarEntry(
-    val day: Int,
-    val time: Int,
-    val cellTime: Int,
-    val room: Int,
-    val workGroupId: Int,
-    val workGroupName: String,
-    val workGroupLength: Int,
-    val workGroupLanguage: String,
-    val workGroupColor: Color? = null
-) : MessageType()
-
-@Serializable
-data class MessageDeleteCalendarEntry(
-    val day: Int,
-    val time: Int,
-    val roomId: Int,
-    val workGroupId: Int
-) : MessageType()

src/jsMain/kotlin/de/kif/frontend/WebSocketClient.kt

@@ -0,0 +1,76 @@
+package de.kif.frontend
+
+import de.kif.common.Message
+import de.kif.common.MessageType
+import de.kif.common.RepositoryType
+import de.kif.frontend.repository.*
+import de.westermann.kwebview.async
+import org.w3c.dom.MessageEvent
+import org.w3c.dom.WebSocket
+import org.w3c.dom.events.Event
+import kotlin.browser.window
+
+class WebSocketClient() {
+    private val url = "ws://${window.location.host}/"
+
+    private lateinit var ws: WebSocket
+
+    @Suppress("UNUSED_PARAMETER")
+    private fun onOpen(event: Event) {
+        console.log("Connected!")
+    }
+
+    private fun onMessage(messageEvent: MessageEvent) {
+        val message = Message.parse(messageEvent.data?.toString() ?: "")
+
+        for (handler in messageHandlers) {
+            if (handler.repository == message.repository) {
+                when (message.type) {
+                    MessageType.CREATE -> handler.onCreate(message.id)
+                    MessageType.UPDATE -> handler.onUpdate(message.id)
+                    MessageType.DELETE -> handler.onDelete(message.id)
+                }
+            }
+        }
+    }
+
+    @Suppress("UNUSED_PARAMETER")
+    private fun onClose(event: Event) {
+        console.log("Disconnected!")
+        async(1000) {
+            connect()
+        }
+    }
+
+    @Suppress("UNUSED_PARAMETER")
+    private fun onError(event: Event) {
+        console.log("An error occurred!")
+    }
+
+    private fun connect() {
+        ws = WebSocket(url)
+
+        ws.onopen = this::onOpen
+        ws.onmessage = this::onMessage
+        ws.onclose = this::onClose
+        ws.onerror = this::onError
+    }
+
+    private val messageHandlers: List<MessageHandler> = listOf(
+        RoomRepository.handler,
+        ScheduleRepository.handler,
+        TrackRepository.handler,
+        UserRepository.handler,
+        WorkGroupRepository.handler
+    )
+
+    init {
+        connect()
+    }
+}
+
+abstract class MessageHandler(val repository: RepositoryType) {
+    abstract fun onCreate(id: Long)
+    abstract fun onUpdate(id: Long)
+    abstract fun onDelete(id: Long)
+}

src/jsMain/kotlin/de/kif/frontend/calendar/Calendar.kt

@@ -1,11 +0,0 @@
-package de.kif.frontend.calendar
-
-import de.westermann.kwebview.View
-import de.westermann.kwebview.ViewCollection
-import de.westermann.kwebview.createHtmlView
-
-class Calendar : ViewCollection<View>(createHtmlView()) {
-    init {
-
-    }
-}

src/jsMain/kotlin/de/kif/frontend/extensions.kt

@@ -0,0 +1,39 @@
+package de.kif.frontend
+
+import org.w3c.dom.*
+import kotlin.coroutines.Continuation
+import kotlin.coroutines.CoroutineContext
+import kotlin.coroutines.EmptyCoroutineContext
+import kotlin.coroutines.startCoroutine
+
+
+operator fun HTMLCollection.iterator() = object : Iterator<HTMLElement> {
+    private var index = 0
+    override fun hasNext(): Boolean {
+        return index < this@iterator.length
+    }
+
+    override fun next(): HTMLElement {
+        return this@iterator.get(index++) as HTMLElement
+    }
+
+}
+
+operator fun NodeList.iterator() = object : Iterator<Node> {
+    private var index = 0
+    override fun hasNext(): Boolean {
+        return index < this@iterator.length
+    }
+
+    override fun next(): Node {
+        return this@iterator.get(index++)!!
+    }
+
+}
+
+fun launch(context: CoroutineContext = EmptyCoroutineContext, block: suspend () -> Unit) =
+    block.startCoroutine(Continuation(context) { result ->
+        result.onFailure { exception ->
+            console.error(exception)
+        }
+    })

src/jsMain/kotlin/de/kif/frontend/main.kt

@@ -1,381 +1,13 @@
 package de.kif.frontend
 
-import de.westermann.kobserve.property.mapBinding
+import de.kif.frontend.views.initCalendar
-import de.westermann.kwebview.*
-import de.westermann.kwebview.components.Body
 import de.westermann.kwebview.components.init
-import kif.common.model.*
-import org.w3c.dom.*
-import org.w3c.dom.events.EventListener
-import org.w3c.dom.events.MouseEvent
 import kotlin.browser.document
-import kotlin.browser.window
-import kotlin.collections.Iterator
-import kotlin.collections.List
-import kotlin.collections.emptyList
-import kotlin.collections.filter
-import kotlin.collections.find
-import kotlin.collections.forEach
-import kotlin.collections.listOf
-import kotlin.collections.minus
-import kotlin.collections.plus
-import kotlin.dom.appendText
-
-class CalendarTools(entry: CalendarEntry, view: HTMLElement) : View(view) {
-
-    init {
-        var linkM10: HTMLAnchorElement? = null
-        var linkM5: HTMLAnchorElement? = null
-        var linkReset: HTMLAnchorElement? = null
-        var linkP5: HTMLAnchorElement? = null
-        var linkP10: HTMLAnchorElement? = null
-        var linkDel: HTMLAnchorElement? = null
-
-        for (element in html.children) {
-            when {
-                element.classList.contains("calendar-tools-m10") -> linkM10 = element as? HTMLAnchorElement
-                element.classList.contains("calendar-tools-m5") -> linkM5 = element as? HTMLAnchorElement
-                element.classList.contains("calendar-tools-reset") -> linkReset = element as? HTMLAnchorElement
-                element.classList.contains("calendar-tools-p5") -> linkP5 = element as? HTMLAnchorElement
-                element.classList.contains("calendar-tools-p10") -> linkP10 = element as? HTMLAnchorElement
-                element.classList.contains("calendar-tools-del") -> linkDel = element as? HTMLAnchorElement
-            }
-        }
-
-        linkM10 = linkM10 ?: run {
-            val link = createHtmlView<HTMLAnchorElement>()
-            link.classList.add("calendar-tools-m10")
-            link.textContent = "-10"
-            html.appendChild(link)
-            link
-        }
-        linkM10.removeAttribute("href")
-        linkM10.addEventListener("click", EventListener {
-            classList += "pending"
-            get("/calendar/${entry.day}/${entry.room}/${entry.time}/-1") {
-                get("/calendar/${entry.day}/${entry.room}/${entry.timeId - 10}/${entry.workGroup}") {
-                    println("success")
-                }
-            }
-        })
-
-        linkM5 = linkM5 ?: run {
-            val link = createHtmlView<HTMLAnchorElement>()
-            link.classList.add("calendar-tools-m5")
-            link.textContent = "-5"
-            html.appendChild(link)
-            link
-        }
-        linkM5.removeAttribute("href")
-        linkM5.addEventListener("click", EventListener {
-            classList += "pending"
-            get("/calendar/${entry.day}/${entry.room}/${entry.time}/-1") {
-                get("/calendar/${entry.day}/${entry.room}/${entry.timeId - 5}/${entry.workGroup}") {
-                    println("success")
-                }
-            }
-        })
-
-        linkReset = linkReset ?: run {
-            val link = createHtmlView<HTMLAnchorElement>()
-            link.classList.add("calendar-tools-reset")
-            link.textContent = "reset"
-            html.appendChild(link)
-            link
-        }
-        linkReset.removeAttribute("href")
-        linkReset.addEventListener("click", EventListener {
-            classList += "pending"
-            get("/calendar/${entry.day}/${entry.room}/${entry.time}/-1") {
-                get("/calendar/${entry.day}/${entry.room}/${entry.cellTime}/${entry.workGroup}") {
-                    println("success")
-                }
-            }
-        })
-
-        linkP5 = linkP5 ?: run {
-            val link = createHtmlView<HTMLAnchorElement>()
-            link.classList.add("calendar-tools-p5")
-            link.textContent = "+5"
-            html.appendChild(link)
-            link
-        }
-        linkP5.removeAttribute("href")
-        linkP5.addEventListener("click", EventListener {
-            classList += "pending"
-            get("/calendar/${entry.day}/${entry.room}/${entry.time}/-1") {
-                get("/calendar/${entry.day}/${entry.room}/${entry.timeId + 5}/${entry.workGroup}") {
-                    println("success")
-                }
-            }
-        })
-
-        linkP10 = linkP10 ?: run {
-            val link = createHtmlView<HTMLAnchorElement>()
-            link.classList.add("calendar-tools-p10")
-            link.textContent = "+10"
-            html.appendChild(link)
-            link
-        }
-        linkP10.removeAttribute("href")
-        linkP10.addEventListener("click", EventListener {
-            classList += "pending"
-            get("/calendar/${entry.day}/${entry.room}/${entry.time}/-1") {
-                get("/calendar/${entry.day}/${entry.room}/${entry.timeId + 10}/${entry.workGroup}") {
-                    println("success")
-                }
-            }
-        })
-
-        linkDel = linkDel ?: run {
-            val link = createHtmlView<HTMLAnchorElement>()
-            link.classList.add("calendar-tools-del")
-            link.textContent = "del"
-            html.appendChild(link)
-            link
-        }
-        linkDel.removeAttribute("href")
-        linkDel.addEventListener("click", EventListener {
-            classList += "pending"
-            get("/calendar/${entry.day}/${entry.room}/${entry.time}/-1") {
-                println("success")
-            }
-        })
-    }
-}
-
-class CalendarEntry(view: HTMLElement) : View(view) {
-
-    private lateinit var mouseDelta: Point
-    private var newCell: CalendarCell? = null
-
-
-    var day by dataset.property("day")
-    val dayId by dataset.property("day").mapBinding { it?.toIntOrNull() ?: 0 }
-
-    var time by dataset.property("time")
-    val timeId by dataset.property("time").mapBinding { it?.toIntOrNull() ?: 0 }
-
-    var room by dataset.property("room")
-    val roomId by dataset.property("room").mapBinding { it?.toIntOrNull() ?: 0 }
-
-    var cellTime by dataset.property("cellTime")
-    var language by dataset.property("language")
-
-    var workGroup by dataset.property("workgroup")
-    val workGroupId by dataset.property("workgroup").mapBinding { it?.toIntOrNull() ?: 0 }
-    private fun onMove(event: MouseEvent) {
-        val position = event.toPoint() - mouseDelta
-
-        newCell?.classList?.remove("drag")
-
-        val cell = calendarCells.find {
-            position in it.dimension
-        }
-
-        if (cell != null) {
-            cell.classList.add("drag")
-            cell += this
-            newCell = cell
-        }
-
-        event.preventDefault()
-        event.stopPropagation()
-    }
-
-    private fun onFinishMove(event: MouseEvent) {
-        classList -= "drag"
-
-        newCell?.let { cell ->
-            cell.classList -= "drag"
-
-            val newTime = cell.time
-            val newRoom = cell.room
-            val day =
-                (document.getElementsByClassName("calendar")[0] as? HTMLElement)?.dataset?.get("day")?.toIntOrNull()
-                    ?: 0
-
-            classList += "pending"
-            get("/calendar/$day/$room/$time/-1") {
-                get("/calendar/$day/$newRoom/$newTime/$workGroup") {
-                    println("success")
-                }
-            }
-        }
-        newCell = null
-
-        for (it in listeners) {
-            it.detach()
-        }
-        listeners = emptyList()
-
-        event.preventDefault()
-        event.stopPropagation()
-    }
-
-    private var listeners: List<de.westermann.kobserve.event.EventListener<*>> = emptyList()
-
-    init {
-        onMouseDown { event ->
-            if (event.target != html || "pending" in classList) {
-                event.stopPropagation()
-                return@onMouseDown
-            }
-
-            classList += "drag"
-
-            mouseDelta = event.toPoint() - point
-
-            listeners = listOf(
-                Body.onMouseMove.reference(this::onMove),
-                Body.onMouseUp.reference(this::onFinishMove),
-                Body.onMouseLeave.reference(this::onFinishMove)
-            )
-
-            event.preventDefault()
-            event.stopPropagation()
-        }
-
-        var calendarTools: CalendarTools? = null
-        for (item in html.children) {
-            if (item.classList.contains("calendar-tools")) {
-                calendarTools = CalendarTools(this, item)
-                break
-            }
-        }
-        if (calendarTools == null) {
-            calendarTools = CalendarTools(this, createHtmlView())
-            html.appendChild(calendarTools.html)
-        }
-    }
-
-    companion object {
-        fun create(
-            day: Int,
-            time: Int,
-            cellTime: Int,
-            room: Int,
-            workGroupId: Int,
-            workGroupName: String,
-            workGroupLength: Int,
-            workGroupLanguage: String,
-            workGroupColor: Color?
-        ): CalendarEntry {
-            val entry = CalendarEntry(createHtmlView())
-
-            entry.day = day.toString()
-            entry.time = time.toString()
-            entry.cellTime = cellTime.toString()
-            entry.room = room.toString()
-            entry.workGroup = workGroupId.toString()
-            entry.language = workGroupLanguage
-            if (workGroupColor != null) {
-
-                entry.style {
-                    val size = workGroupLength / CALENDAR_GRID_WIDTH.toDouble()
-                    val pos = (time % CALENDAR_GRID_WIDTH) / CALENDAR_GRID_WIDTH.toDouble()
-
-                    val pct = "${pos * 100}%"
-                    val sz = "${size * 100}%"
-
-                    left = pct
-                    top = "calc($pct + 0.1rem)"
-
-                    width = sz
-                    height = "calc($sz - 0.2rem)"
-
-                    backgroundColor = workGroupColor.toString()
-                    color = workGroupColor.textColor.toString()
-                }
-            }
-            entry.html.appendText(workGroupName)
-
-            return entry
-        }
-    }
-}
-
-class CalendarCell(view: HTMLElement) : ViewCollection<CalendarEntry>(view) {
-    var day by dataset.property("day")
-    val dayId by dataset.property("day").mapBinding { it?.toIntOrNull() ?: 0 }
-
-    var time by dataset.property("time")
-    val timeId by dataset.property("time").mapBinding { it?.toIntOrNull() ?: 0 }
-
-    var room by dataset.property("room")
-    val roomId by dataset.property("room").mapBinding { it?.toIntOrNull() ?: 0 }
-}
-
-var calendarEntries: List<CalendarEntry> = emptyList()
-var calendarCells: List<CalendarCell> = emptyList()
 
 fun main() = init {
+    WebSocketClient()
 
-    val ws = WebSocket("ws://${window.location.host}/".also { println(it) })
+    if (document.getElementsByClassName("calendar").length > 0) {
-
+        initCalendar()
-    ws.onmessage = {
-        val messageWrapper = Message.parse(it.data?.toString() ?: "")
-        val message = messageWrapper.message
-
-        println(message)
-
-        when (message) {
-            is MessageCreateCalendarEntry -> {
-                val entry = CalendarEntry.create(
-                    message.day,
-                    message.time,
-                    message.cellTime,
-                    message.room,
-                    message.workGroupId,
-                    message.workGroupName,
-                    message.workGroupLength,
-                    message.workGroupLanguage,
-                    message.workGroupColor
-                )
-                for (cell in calendarCells) {
-                    if (cell.dayId == message.day && cell.timeId == message.cellTime && cell.roomId == message.room) {
-                        cell.html.appendChild(entry.html)
-                        calendarEntries += entry
-                        break
     }
-                }
-            }
-            is MessageDeleteCalendarEntry -> {
-                val remove = calendarEntries.filter { entry ->
-                    entry.dayId == message.day &&
-                            entry.timeId == message.time &&
-                            entry.roomId == message.roomId &&
-                            entry.workGroupId == message.workGroupId
-                }
-                calendarEntries -= remove
-                remove.forEach {
-                    it.html.remove()
-                }
-            }
-            else -> {
-            }
-        }
-    }
-
-    ws.onopen = {
-        console.log("yes!")
-    }
-
-    calendarEntries = document.getElementsByClassName("calendar-entry")
-        .iterator().asSequence().map(::CalendarEntry).toList()
-
-    calendarCells = document.getElementsByClassName("calendar-cell")
-        .iterator().asSequence().filter { it.dataset["time"] != null }.map(::CalendarCell).toList()
-}
-
-operator fun HTMLCollection.iterator() = object : Iterator<HTMLElement> {
-    private var index = 0
-    override fun hasNext(): Boolean {
-        return index < this@iterator.length
-    }
-
-    override fun next(): HTMLElement {
-        return this@iterator.get(index++) as HTMLElement
-    }
-
 }

src/jsMain/kotlin/de/kif/frontend/repository/Ajax.kt

@@ -0,0 +1,106 @@
+package de.kif.frontend.repository
+
+import de.kif.common.Repository
+import de.kif.common.model.Model
+import org.w3c.xhr.XMLHttpRequest
+import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
+import kotlin.coroutines.suspendCoroutine
+import kotlin.js.Promise
+
+suspend fun repositoryGet(
+    url: String
+): dynamic {
+    console.log("GET: $url")
+    val promise = Promise<dynamic> { resolve, reject ->
+        val xhttp = XMLHttpRequest()
+
+        xhttp.onreadystatechange = {
+            if (xhttp.readyState == 4.toShort()) {
+                if (xhttp.status == 200.toShort() || xhttp.status == 304.toShort()) {
+                    resolve(JSON.parse(xhttp.responseText))
+                } else {
+                    reject(NoSuchElementException("${xhttp.status}: ${xhttp.statusText}"))
+                }
+            }
+        }
+        xhttp.open("GET", url, true)
+
+        xhttp.send()
+    }
+
+    try {
+        val d = promise.await()
+
+        return if (d.OK) {
+            d.data
+        } else {
+            null
+        }
+    } catch (e: NoSuchElementException) {
+        console.error(e)
+
+        return null
+    }
+}
+
+suspend fun repositoryPost(
+    url: String,
+    data: String? = null
+): dynamic {
+    console.log("POST: $url", data)
+    val promise = Promise<dynamic> { resolve, reject ->
+        val xhttp = XMLHttpRequest()
+
+        xhttp.onreadystatechange = {
+            if (xhttp.readyState == 4.toShort()) {
+                if (xhttp.status == 200.toShort() || xhttp.status == 304.toShort()) {
+                    resolve(JSON.parse(xhttp.responseText))
+                } else {
+                    reject(NoSuchElementException("${xhttp.status}: ${xhttp.statusText}"))
+                }
+            }
+        }
+        xhttp.open("POST", url, true)
+        xhttp.setRequestHeader("Content-type", "application/json");
+
+        xhttp.send(data)
+    }
+
+    try {
+        val d = promise.await()
+
+        return if (d.OK) {
+            d.data
+        } else {
+            null
+        }
+    } catch (e: NoSuchElementException) {
+        console.error(e)
+
+        return null
+    }
+}
+
+suspend fun <T> Promise<T>.await(): T = suspendCoroutine { cont ->
+    then({ cont.resume(it) }, { cont.resumeWithException(it) })
+}
+
+class RepositoryDelegate<T : Model>(
+    private val repository: Repository<T>,
+    private val id: Long
+) {
+
+    private var backing: T? = null
+
+    suspend fun get(): T {
+        if (backing == null) {
+            backing = repository.get(id) ?: throw NoSuchElementException()
+        }
+        return backing!!
+    }
+
+    fun set(value: T) {
+        backing = value
+    }
+}

src/jsMain/kotlin/de/kif/frontend/repository/RoomRepository.kt

@@ -0,0 +1,52 @@
+package de.kif.frontend.repository
+
+import de.kif.common.Message
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.Room
+import de.kif.frontend.MessageHandler
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.serialization.DynamicObjectParser
+import kotlinx.serialization.list
+
+object RoomRepository : Repository<Room> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private val parser = DynamicObjectParser()
+
+    override suspend fun get(id: Long): Room? {
+        val json = repositoryGet("/api/room/$id") ?: return null
+        return parser.parse(json, Room.serializer())
+    }
+
+    override suspend fun create(model: Room): Long {
+        return repositoryPost("/api/rooms", Message.json.stringify(Room.serializer(), model))?.toLong()
+            ?: throw IllegalStateException("Cannot create model!")
+    }
+
+    override suspend fun update(model: Room) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        repositoryPost("/api/room/${model.id}", Message.json.stringify(Room.serializer(), model))
+    }
+
+    override suspend fun delete(id: Long) {
+        repositoryPost("/api/room/$id/delete")
+    }
+
+    override suspend fun all(): List<Room> {
+        val json = repositoryGet("/api/rooms") ?: return emptyList()
+        return parser.parse(json, Room.serializer().list)
+    }
+
+    val handler = object : MessageHandler(RepositoryType.ROOM) {
+
+        override fun onCreate(id: Long) = onCreate.emit(id)
+
+        override fun onUpdate(id: Long) = onUpdate.emit(id)
+
+        override fun onDelete(id: Long) = onDelete.emit(id)
+    }
+}

src/jsMain/kotlin/de/kif/frontend/repository/ScheduleRepository.kt

@@ -0,0 +1,52 @@
+package de.kif.frontend.repository
+
+import de.kif.common.Message
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.Schedule
+import de.kif.frontend.MessageHandler
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.serialization.DynamicObjectParser
+import kotlinx.serialization.list
+
+object ScheduleRepository : Repository<Schedule> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private val parser = DynamicObjectParser()
+
+    override suspend fun get(id: Long): Schedule? {
+        val json = repositoryGet("/api/schedule/$id") ?: return null
+        return parser.parse(json, Schedule.serializer())
+    }
+
+    override suspend fun create(model: Schedule): Long {
+        return repositoryPost("/api/schedules", Message.json.stringify(Schedule.serializer(), model))?.toLong()
+            ?: throw IllegalStateException("Cannot create model!")
+    }
+
+    override suspend fun update(model: Schedule) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        repositoryPost("/api/schedule/${model.id}", Message.json.stringify(Schedule.serializer(), model))
+    }
+
+    override suspend fun delete(id: Long) {
+        repositoryPost("/api/schedule/$id/delete")
+    }
+
+    override suspend fun all(): List<Schedule> {
+        val json = repositoryGet("/api/schedules") ?: return emptyList()
+        return parser.parse(json, Schedule.serializer().list)
+    }
+
+    val handler = object : MessageHandler(RepositoryType.SCHEDULE) {
+
+        override fun onCreate(id: Long) = onCreate.emit(id)
+
+        override fun onUpdate(id: Long) = onUpdate.emit(id)
+
+        override fun onDelete(id: Long) = onDelete.emit(id)
+    }
+}

src/jsMain/kotlin/de/kif/frontend/repository/TrackRepository.kt

@@ -0,0 +1,52 @@
+package de.kif.frontend.repository
+
+import de.kif.common.Message
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.Track
+import de.kif.frontend.MessageHandler
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.serialization.DynamicObjectParser
+import kotlinx.serialization.list
+
+object TrackRepository : Repository<Track> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private val parser = DynamicObjectParser()
+
+    override suspend fun get(id: Long): Track? {
+        val json = repositoryGet("/api/track/$id") ?: return null
+        return parser.parse(json, Track.serializer())
+    }
+
+    override suspend fun create(model: Track): Long {
+        return repositoryPost("/api/tracks", Message.json.stringify(Track.serializer(), model))?.toLong()
+            ?: throw IllegalStateException("Cannot create model!")
+    }
+
+    override suspend fun update(model: Track) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        repositoryPost("/api/track/${model.id}", Message.json.stringify(Track.serializer(), model))
+    }
+
+    override suspend fun delete(id: Long) {
+        repositoryPost("/api/track/$id/delete")
+    }
+
+    override suspend fun all(): List<Track> {
+        val json = repositoryGet("/api/tracks") ?: return emptyList()
+        return parser.parse(json, Track.serializer().list)
+    }
+
+    val handler = object : MessageHandler(RepositoryType.TRACK) {
+
+        override fun onCreate(id: Long) = onCreate.emit(id)
+
+        override fun onUpdate(id: Long) = onUpdate.emit(id)
+
+        override fun onDelete(id: Long) = onDelete.emit(id)
+    }
+}

src/jsMain/kotlin/de/kif/frontend/repository/UserRepository.kt

@@ -0,0 +1,52 @@
+package de.kif.frontend.repository
+
+import de.kif.common.Message
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.User
+import de.kif.frontend.MessageHandler
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.serialization.DynamicObjectParser
+import kotlinx.serialization.list
+
+object UserRepository : Repository<User> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private val parser = DynamicObjectParser()
+
+    override suspend fun get(id: Long): User? {
+        val json = repositoryGet("/api/user/$id") ?: return null
+        return parser.parse(json, User.serializer())
+    }
+
+    override suspend fun create(model: User): Long {
+        return repositoryPost("/api/users", Message.json.stringify(User.serializer(), model))?.toLong()
+            ?: throw IllegalStateException("Cannot create model!")
+    }
+
+    override suspend fun update(model: User) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        repositoryPost("/api/user/${model.id}", Message.json.stringify(User.serializer(), model))
+    }
+
+    override suspend fun delete(id: Long) {
+        repositoryPost("/api/user/$id/delete")
+    }
+
+    override suspend fun all(): List<User> {
+        val json = repositoryGet("/api/users") ?: return emptyList()
+        return parser.parse(json, User.serializer().list)
+    }
+
+    val handler = object : MessageHandler(RepositoryType.USER) {
+
+        override fun onCreate(id: Long) = onCreate.emit(id)
+
+        override fun onUpdate(id: Long) = onUpdate.emit(id)
+
+        override fun onDelete(id: Long) = onDelete.emit(id)
+    }
+}

src/jsMain/kotlin/de/kif/frontend/repository/WorkGroupRepository.kt

@@ -0,0 +1,52 @@
+package de.kif.frontend.repository
+
+import de.kif.common.Message
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.WorkGroup
+import de.kif.frontend.MessageHandler
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.serialization.DynamicObjectParser
+import kotlinx.serialization.list
+
+object WorkGroupRepository : Repository<WorkGroup> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private val parser = DynamicObjectParser()
+
+    override suspend fun get(id: Long): WorkGroup? {
+        val json = repositoryGet("/api/workgroup/$id") ?: return null
+        return parser.parse(json, WorkGroup.serializer())
+    }
+
+    override suspend fun create(model: WorkGroup): Long {
+        return repositoryPost("/api/workgroups", Message.json.stringify(WorkGroup.serializer(), model))?.toLong()
+            ?: throw IllegalStateException("Cannot create model!")
+    }
+
+    override suspend fun update(model: WorkGroup) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        repositoryPost("/api/workgroup/${model.id}", Message.json.stringify(WorkGroup.serializer(), model))
+    }
+
+    override suspend fun delete(id: Long) {
+        repositoryPost("/api/workgroup/$id/delete")
+    }
+
+    override suspend fun all(): List<WorkGroup> {
+        val json = repositoryGet("/api/workgroups") ?: return emptyList()
+        return parser.parse(json, WorkGroup.serializer().list)
+    }
+
+    val handler = object : MessageHandler(RepositoryType.WORK_GROUP) {
+
+        override fun onCreate(id: Long) = onCreate.emit(id)
+
+        override fun onUpdate(id: Long) = onUpdate.emit(id)
+
+        override fun onDelete(id: Long) = onDelete.emit(id)
+    }
+}

src/jsMain/kotlin/de/kif/frontend/views/Calendar.kt

@@ -0,0 +1,359 @@
+package de.kif.frontend.views
+
+import de.kif.common.CALENDAR_GRID_WIDTH
+import de.kif.common.model.Room
+import de.kif.common.model.Schedule
+import de.kif.frontend.iterator
+import de.kif.frontend.launch
+import de.kif.frontend.repository.RepositoryDelegate
+import de.kif.frontend.repository.RoomRepository
+import de.kif.frontend.repository.ScheduleRepository
+import de.westermann.kwebview.*
+import de.westermann.kwebview.components.Body
+import org.w3c.dom.HTMLAnchorElement
+import org.w3c.dom.HTMLElement
+import org.w3c.dom.events.EventListener
+import org.w3c.dom.events.MouseEvent
+import org.w3c.dom.get
+import kotlin.browser.document
+import kotlin.dom.appendText
+import kotlin.dom.isText
+
+class CalendarTools(entry: CalendarEntry, view: HTMLElement) : View(view) {
+
+    init {
+        var linkM10: HTMLAnchorElement? = null
+        var linkM5: HTMLAnchorElement? = null
+        var linkReset: HTMLAnchorElement? = null
+        var linkP5: HTMLAnchorElement? = null
+        var linkP10: HTMLAnchorElement? = null
+        var linkDel: HTMLAnchorElement? = null
+
+        for (element in html.children) {
+            when {
+                element.classList.contains("calendar-tools-m10") -> linkM10 = element as? HTMLAnchorElement
+                element.classList.contains("calendar-tools-m5") -> linkM5 = element as? HTMLAnchorElement
+                element.classList.contains("calendar-tools-reset") -> linkReset = element as? HTMLAnchorElement
+                element.classList.contains("calendar-tools-p5") -> linkP5 = element as? HTMLAnchorElement
+                element.classList.contains("calendar-tools-p10") -> linkP10 = element as? HTMLAnchorElement
+                element.classList.contains("calendar-tools-del") -> linkDel = element as? HTMLAnchorElement
+            }
+        }
+
+        linkM10 = linkM10 ?: run {
+            val link = createHtmlView<HTMLAnchorElement>()
+            link.classList.add("calendar-tools-m10")
+            link.textContent = "-10"
+            html.appendChild(link)
+            link
+        }
+        linkM10.removeAttribute("href")
+        linkM10.addEventListener("click", EventListener {
+            entry.pending = true
+            launch {
+                val s = entry.schedule.get()
+                ScheduleRepository.update(s.copy(time = s.time - 10))
+            }
+        })
+
+        linkM5 = linkM5 ?: run {
+            val link = createHtmlView<HTMLAnchorElement>()
+            link.classList.add("calendar-tools-m5")
+            link.textContent = "-5"
+            html.appendChild(link)
+            link
+        }
+        linkM5.removeAttribute("href")
+        linkM5.addEventListener("click", EventListener {
+            entry.pending = true
+            launch {
+                val s = entry.schedule.get()
+                ScheduleRepository.update(s.copy(time = s.time - 5))
+            }
+        })
+
+        linkReset = linkReset ?: run {
+            val link = createHtmlView<HTMLAnchorElement>()
+            link.classList.add("calendar-tools-reset")
+            link.textContent = "reset"
+            html.appendChild(link)
+            link
+        }
+        linkReset.removeAttribute("href")
+        linkReset.addEventListener("click", EventListener {
+            entry.pending = true
+            launch {
+                val s = entry.schedule.get()
+                ScheduleRepository.update(s.copy(time = s.time / CALENDAR_GRID_WIDTH * CALENDAR_GRID_WIDTH))
+            }
+        })
+
+        linkP5 = linkP5 ?: run {
+            val link = createHtmlView<HTMLAnchorElement>()
+            link.classList.add("calendar-tools-p5")
+            link.textContent = "+5"
+            html.appendChild(link)
+            link
+        }
+        linkP5.removeAttribute("href")
+        linkP5.addEventListener("click", EventListener {
+            entry.pending = true
+            launch {
+                val s = entry.schedule.get()
+                ScheduleRepository.update(s.copy(time = s.time + 5))
+            }
+        })
+
+        linkP10 = linkP10 ?: run {
+            val link = createHtmlView<HTMLAnchorElement>()
+            link.classList.add("calendar-tools-p10")
+            link.textContent = "+10"
+            html.appendChild(link)
+            link
+        }
+        linkP10.removeAttribute("href")
+        linkP10.addEventListener("click", EventListener {
+            entry.pending = true
+            launch {
+                val s = entry.schedule.get()
+                ScheduleRepository.update(s.copy(time = s.time + 10))
+            }
+        })
+
+        linkDel = linkDel ?: run {
+            val link = createHtmlView<HTMLAnchorElement>()
+            link.classList.add("calendar-tools-del")
+            link.textContent = "del"
+            html.appendChild(link)
+            link
+        }
+        linkDel.removeAttribute("href")
+        linkDel.addEventListener("click", EventListener {
+            entry.pending = true
+            launch {
+                ScheduleRepository.delete(entry.scheduleId)
+            }
+        })
+    }
+}
+
+class CalendarEntry(view: HTMLElement) : View(view) {
+
+    private lateinit var mouseDelta: Point
+    private var newCell: CalendarCell? = null
+
+    private var language by dataset.property("language")
+
+    val scheduleId = dataset["id"]?.toLongOrNull() ?: 0
+
+    val schedule = RepositoryDelegate(ScheduleRepository, scheduleId)
+
+    var pending by classList.property("pending")
+
+    private fun onMove(event: MouseEvent) {
+        val position = event.toPoint() - mouseDelta
+
+        val cell = calendarCells.find {
+            position in it.dimension
+        }
+
+
+        if (cell != null) {
+            cell += this
+
+            if (newCell == null) {
+                style {
+                    left = "0"
+                    top = "0.1rem"
+                }
+            }
+
+            newCell = cell
+        }
+
+        event.preventDefault()
+        event.stopPropagation()
+    }
+
+    private fun onFinishMove(event: MouseEvent) {
+        classList -= "drag"
+
+        newCell?.let { cell ->
+            launch {
+                val newTime = cell.time
+                val newRoom = cell.getRoom()
+
+                pending = true
+
+                val s = schedule.get().copy(room = newRoom, time = newTime)
+
+                ScheduleRepository.update(s)
+            }
+        }
+        newCell = null
+
+        for (it in listeners) {
+            it.detach()
+        }
+        listeners = emptyList()
+
+        event.preventDefault()
+        event.stopPropagation()
+    }
+
+    private var listeners: List<de.westermann.kobserve.event.EventListener<*>> = emptyList()
+
+    init {
+        onMouseDown { event ->
+            if (event.target != html || "pending" in classList) {
+                event.stopPropagation()
+                return@onMouseDown
+            }
+
+            launch {
+                classList += "drag"
+
+                val s = schedule.get()
+                val time = s.time / CALENDAR_GRID_WIDTH * CALENDAR_GRID_WIDTH
+
+                val p = calendarCells.find {
+                    it.day == s.day && it.time == time && it.roomId == s.room.id
+                }?.dimension?.center ?: dimension.center
+
+                mouseDelta = event.toPoint() - p
+
+                listeners = listOf(
+                    Body.onMouseMove.reference(this::onMove),
+                    Body.onMouseUp.reference(this::onFinishMove),
+                    Body.onMouseLeave.reference(this::onFinishMove)
+                )
+            }
+            event.preventDefault()
+            event.stopPropagation()
+        }
+
+        var calendarTools: CalendarTools? = null
+        for (item in html.children) {
+            if (item.classList.contains("calendar-tools")) {
+                calendarTools = CalendarTools(this, item)
+                break
+            }
+        }
+        if (calendarTools == null) {
+            calendarTools = CalendarTools(this, createHtmlView())
+            html.appendChild(calendarTools.html)
+        }
+    }
+
+    fun load(schedule: Schedule) {
+        pending = false
+
+        language = schedule.workGroup.language.code
+
+        this.schedule.set(schedule)
+
+        style {
+            val size = schedule.workGroup.length / CALENDAR_GRID_WIDTH.toDouble()
+            val pos = (schedule.time % CALENDAR_GRID_WIDTH) / CALENDAR_GRID_WIDTH.toDouble()
+
+            val ps = "${pos * 100}%"
+            val sz = "${size * 100}%"
+
+            left = ps
+            top = "calc($ps + 0.1rem)"
+
+            width = sz
+            height = "calc($sz - 0.2rem)"
+
+            if (schedule.workGroup.track?.color != null) {
+                backgroundColor = schedule.workGroup.track.color.toString()
+                color = schedule.workGroup.track.color.calcTextColor().toString()
+            }
+        }
+
+        for (element in html.childNodes) {
+            if (element.isText) {
+                html.removeChild(element)
+            }
+        }
+
+        html.appendText(schedule.workGroup.name)
+
+
+        val time = schedule.time / CALENDAR_GRID_WIDTH * CALENDAR_GRID_WIDTH
+        val cell = calendarCells.find {
+            it.day == schedule.day && it.time == time && it.roomId == schedule.room.id
+        }
+
+        if (cell != null && cell.html != html.parentElement) {
+            cell += this
+        }
+    }
+
+    companion object {
+        fun create(schedule: Schedule): CalendarEntry {
+            val entry = CalendarEntry(createHtmlView())
+
+            entry.load(schedule)
+
+            return entry
+        }
+    }
+}
+
+class CalendarCell(view: HTMLElement) : ViewCollection<CalendarEntry>(view) {
+    val day = dataset["day"]?.toIntOrNull() ?: 0
+    val time = dataset["time"]?.toIntOrNull() ?: 0
+    val roomId = dataset["room"]?.toLongOrNull() ?: 0
+
+    private lateinit var room: Room
+
+    suspend fun getRoom(): Room {
+        if (this::room.isInitialized) {
+            return room
+        }
+
+        room = RoomRepository.get(roomId) ?: throw NoSuchElementException()
+        return room
+    }
+}
+
+var calendarEntries: List<CalendarEntry> = emptyList()
+var calendarCells: List<CalendarCell> = emptyList()
+
+fun initCalendar() {
+    calendarEntries = document.getElementsByClassName("calendar-entry")
+        .iterator().asSequence().map(::CalendarEntry).toList()
+
+    calendarCells = document.getElementsByClassName("calendar-cell")
+        .iterator().asSequence().filter { it.dataset["time"] != null }.map(::CalendarCell).toList()
+
+    ScheduleRepository.onCreate {
+        launch {
+            val schedule = ScheduleRepository.get(it) ?: throw  NoSuchElementException()
+            CalendarEntry.create(schedule)
+        }
+    }
+    ScheduleRepository.onUpdate {
+        launch {
+            val schedule = ScheduleRepository.get(it) ?: throw  NoSuchElementException()
+            var found = false
+            for (entry in calendarEntries) {
+                if (entry.scheduleId == it) {
+                    entry.load(schedule)
+                    found = true
+                }
+            }
+            if (!found) {
+                CalendarEntry.create(schedule)
+            }
+        }
+    }
+    ScheduleRepository.onDelete {
+        for (entry in calendarEntries) {
+            if (entry.scheduleId == it) {
+                entry.html.remove()
+            }
+        }
+    }
+}

src/jsMain/kotlin/de/westermann/kwebview/ClassList.kt

@@ -3,6 +3,7 @@ package de.westermann.kwebview
 import de.westermann.kobserve.event.EventListener
 import de.westermann.kobserve.Property
 import de.westermann.kobserve.ReadOnlyProperty
+import de.westermann.kobserve.property.property
 import org.w3c.dom.DOMTokenList
 
 /**
@@ -97,6 +98,23 @@ class ClassList(
         )
     }
 
+    fun property(clazz: String): Property<Boolean> {
+        if (clazz in bound) {
+            throw IllegalArgumentException("Class is already bound!")
+        }
+
+        val property = property(get(clazz))
+
+        bound[clazz] = Bound(property,
+            property.onChange.reference {
+                list.toggle(clazz, property.value)
+            }
+        )
+
+        return property
+    }
+
+
     fun unbind(clazz: String) {
         if (clazz !in bound) {
             throw IllegalArgumentException("Class is not bound!")

src/jsMain/kotlin/de/westermann/kwebview/Dimension.kt

@@ -27,6 +27,9 @@ data class Dimension(
     val bottom: Double
         get() = top + height
 
+    val center: Point
+        get() = Point(left + width / 2.0, top + height / 2.0)
+
     val edges: Set<Point>
         get() = setOf(
             Point(left, top),

src/jsMain/kotlin/de/westermann/kwebview/extensions.kt

@@ -110,7 +110,7 @@ fun get(
     }
 }
 
-fun post(
+fun postForm(
     url: String,
     data: Map<String, String> = emptyMap(),
     onError: (Int) -> Unit = {},
@@ -141,3 +141,43 @@ fun post(
         xhttp.send()
     }
 }
+
+fun postJson(
+    url: String,
+    data: dynamic,
+    onError: (Int) -> Unit = {},
+    onSuccess: (String) -> Unit = {}
+) {
+    val xhttp = XMLHttpRequest()
+
+    xhttp.onreadystatechange = {
+        if (xhttp.readyState == 4.toShort()) {
+            console.log(xhttp.status)
+            if (xhttp.status == 200.toShort() || xhttp.status == 304.toShort()) {
+                onSuccess(xhttp.responseText)
+            } else {
+                onError(xhttp.status.toInt())
+            }
+        }
+    }
+    xhttp.open("POST", url, true)
+
+    if (data.isNotEmpty()) {
+        xhttp.setRequestHeader("Content-type", "application/json");
+        xhttp.send(data)
+    } else {
+        xhttp.send()
+    }
+}
+
+fun jsonObject(block: (dynamic) -> Unit): dynamic {
+    val json = js("{}")
+    block(json)
+    return json
+}
+
+fun jsonArray(block: (dynamic) -> Unit): dynamic {
+    val json = js("[]")
+    block(json)
+    return json
+}

src/jvmMain/kotlin/de/kif/backend/Application.kt

@@ -1,190 +1,40 @@
 package de.kif.backend
 
-import de.kif.backend.database.Connection
+import com.fasterxml.jackson.databind.SerializationFeature
-import de.kif.backend.model.User
 import de.kif.backend.route.*
+import de.kif.backend.route.api.*
+import de.kif.backend.util.pushService
 import io.ktor.application.Application
-import io.ktor.application.ApplicationCall
 import io.ktor.application.install
-import io.ktor.application.log
-import io.ktor.auth.Authentication
-import io.ktor.auth.FormAuthChallenge
-import io.ktor.auth.UserPasswordCredential
-import io.ktor.auth.form
 import io.ktor.features.*
 import io.ktor.http.content.files
 import io.ktor.http.content.static
-import io.ktor.locations.Location
+import io.ktor.jackson.jackson
-import io.ktor.locations.Locations
-import io.ktor.response.respondRedirect
 import io.ktor.routing.routing
-import io.ktor.sessions.*
-import io.ktor.util.hex
 import io.ktor.websocket.WebSockets
-import kotlinx.coroutines.launch
-import kotlinx.serialization.json.Json
-
-data class PortalSession(val id: Int, val name: String) {
-    suspend fun getUser(call: ApplicationCall): User {
-        val user = User.find(name)
-        if (user == null || user.id != id) {
-            call.sessions.clear<PortalSession>()
-            call.respondRedirect("/login?error")
-            throw IllegalAccessException()
-        }
-        return user
-    }
-}
-
-@Location("/")
-class LocationDashboard()
-
-@Location("/calendar/{day}")
-data class LocationCalendar(val day: Int) {
-    @Location("/{room}/{time}")
-    data class LocationCalendarEdit(
-        val calendar: LocationCalendar,
-        val room: Int,
-        val time: Int,
-        val search: String = ""
-    ) {
-        val day: Int get() = calendar.day
-    }
-
-    @Location("/{room}/{time}/{workGroup}")
-    data class LocationCalendarSet(
-        val calendar: LocationCalendar,
-        val room: Int,
-        val time: Int,
-        val workGroup: Int,
-        val next: String? = null
-    ) {
-        val day: Int get() = calendar.day
-    }
-
-    @Location("/time-to-room")
-    data class LocationCalendarTimeToRoom(val calendar: LocationCalendar){
-        val day: Int get() = calendar.day
-    }
-
-    @Location("/room-to-time")
-    data class LocationCalendarRoomToTime(val calendar: LocationCalendar){
-        val day: Int get() = calendar.day
-    }
-}
-
-@Location("/login")
-data class LocationLogin(val username: String = "", val password: String = "", val next: String = "/")
-
-@Location("/logout")
-class LocationLogout()
-
-@Location("/account")
-class LocationAccount()
-
-@Location("/user")
-data class LocationUser(val search: String = "") {
-    @Location("/{id}")
-    data class Edit(val id: Int)
-
-    @Location("/new")
-    class New()
-
-    @Location("/{id}/delete")
-    data class Delete(val id: Int)
-}
-
-@Location("/workgroup")
-data class LocationWorkGroup(val search: String = "") {
-    @Location("/{id}")
-    data class Edit(val id: Int)
-
-    @Location("/new")
-    class New()
-
-    @Location("/{id}/delete")
-    data class Delete(val id: Int)
-}
-
-@Location("/track")
-data class LocationTrack(val search: String = "") {
-    @Location("/{id}")
-    data class Edit(val id: Int)
-
-    @Location("/new")
-    class New()
-
-    @Location("/{id}/delete")
-    data class Delete(val id: Int)
-}
-
-@Location("/room")
-data class LocationRoom(val search: String = "") {
-    @Location("/{id}")
-    data class Edit(val id: Int)
-
-    @Location("/new")
-    class New()
-
-    @Location("/{id}/delete")
-    data class Delete(val id: Int)
-}
-
-@Location("/person")
-data class LocationPerson(val search: String = "") {
-    @Location("/{id}")
-    data class Edit(val id: Int)
-
-    @Location("/new")
-    class New()
-
-    @Location("/{id}/delete")
-    data class Delete(val id: Int)
-}
 
 fun Application.main() {
-    Connection.init()
-
     install(DefaultHeaders)
     install(CallLogging)
     install(ConditionalHeaders)
     install(Compression)
     install(DataConversion)
-    install(Locations)
     install(WebSockets)
 
-    install(Authentication) {
+    install(ContentNegotiation) {
-        form {
+        jackson {
-            userParamName = LocationLogin::username.name
+            enable(SerializationFeature.INDENT_OUTPUT) // Pretty Prints the JSON
-            passwordParamName = LocationLogin::password.name
-            challenge = FormAuthChallenge.Redirect { _ ->
-                "/login?error"
-            }
-            validate { credential: UserPasswordCredential ->
-                val user = User.find(credential.name) ?: return@validate null
-                if (user.checkPassword(credential.password)) user else null
-            }
         }
     }
 
-    val sessionKey = hex("1234567890abcdef") //TODO
+    security()
-    install(Sessions) {
-        cookie<PortalSession>("SESSION") {
-            transform(SessionTransportTransformerMessageAuthentication(sessionKey))
-        }
-    }
 
     routing {
         static("/static") {
             files(Resources.directory)
         }
 
-        launch {
+        // UI routes
-            val firstStart = User.exists()
-            if (firstStart) {
-                log.info("Please create the first user and restart the server!")
-                setup()
-            } else {
         dashboard()
         calendar()
         login()
@@ -193,11 +43,18 @@ fun Application.main() {
         workGroup()
         track()
         room()
-                person()
         user()
 
+        // RESTful routes
+        authenticateApi()
+
+        roomApi()
+        scheduleApi()
+        trackApi()
+        userApi()
+        workGroupApi()
+
+        // Web socket push notifications
         pushService()
     }
-        }
-    }
 }

src/jvmMain/kotlin/de/kif/backend/Main.kt

@@ -1,13 +1,50 @@
 package de.kif.backend
 
+import de.kif.backend.database.Connection
+import de.kif.backend.repository.UserRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.User
 import io.ktor.application.Application
 import io.ktor.server.engine.embeddedServer
 import io.ktor.server.netty.Netty
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.runBlocking
+import kotlin.coroutines.suspendCoroutine
 
 object Main {
     @Suppress("UnusedMainParameter")
     @JvmStatic
     fun main(args: Array<String>) {
+        Connection.init()
+
+        runBlocking {
+            if (UserRepository.all().isEmpty()) {
+
+                println("Please create a root user")
+
+                var username: String? = null
+                while (username == null) {
+                    print("Username: ")
+                    username = readLine()
+                }
+
+                var password: String? = null
+                while (password == null) {
+                    print("Password: ")
+                    password = System.console()?.readPassword()?.toString() ?: readLine()
+                }
+
+                UserRepository.create(
+                    User(
+                        null,
+                        username,
+                        hashPassword(password),
+                        setOf(Permission.ADMIN)
+                    )
+                )
+            }
+        }
+
         embeddedServer(
             factory = Netty,
             port = 8080,

src/jvmMain/kotlin/de/kif/backend/Security.kt

@@ -0,0 +1,125 @@
+package de.kif.backend
+
+import de.kif.backend.repository.UserRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.User
+import io.ktor.application.Application
+import io.ktor.application.ApplicationCall
+import io.ktor.application.call
+import io.ktor.application.install
+import io.ktor.auth.*
+import io.ktor.request.path
+import io.ktor.response.respondRedirect
+import io.ktor.sessions.*
+import io.ktor.util.hex
+import io.ktor.util.pipeline.PipelineContext
+import org.mindrot.jbcrypt.BCrypt
+import java.io.File
+
+interface ErrorContext {
+    suspend infix fun onFailure(block: suspend () -> Unit)
+}
+
+object ErrorContextIgnore : ErrorContext {
+    override suspend fun onFailure(block: suspend () -> Unit) {
+        // do nothing
+    }
+}
+
+class ErrorContextOccur() : ErrorContext {
+    override suspend fun onFailure(block: suspend () -> Unit) {
+        block()
+    }
+}
+
+suspend inline fun PipelineContext<Unit, ApplicationCall>.authenticate(
+    vararg permissions: Permission,
+    block: (user: User) -> Unit
+): ErrorContext {
+    val user = call.sessions.get<PortalSession>()?.getUser(call)
+    return if (user == null || permissions.any { !user.checkPermission(it) }) {
+        ErrorContextOccur()
+    } else {
+        block(user)
+        ErrorContextIgnore
+    }
+}
+
+suspend inline fun PipelineContext<Unit, ApplicationCall>.authenticateOrRedirect(
+    vararg permissions: Permission,
+    block: (user: User) -> Unit
+) {
+    authenticate(*permissions, block = block) onFailure {
+        call.respondRedirect("/login?redirect=${call.request.path()}}")
+    }
+}
+
+suspend fun PipelineContext<Unit, ApplicationCall>.isAuthenticated(vararg permissions: Permission): User? {
+    val user = call.sessions.get<PortalSession>()?.getUser(call)
+    return if (user == null || permissions.any { !user.checkPermission(it) }) {
+        null
+    } else {
+        user
+    }
+}
+
+data class PortalSession(val userId: Long) {
+    suspend fun getUser(call: ApplicationCall): User {
+        val user = UserRepository.get(userId)
+
+        if (user == null) {
+            call.sessions.clear<PortalSession>()
+            call.respondRedirect("/login?onFailure")
+            throw IllegalAccessException()
+        }
+
+        return user
+    }
+}
+
+data class UserPrinciple(val user: User) : Principal
+
+fun checkPassword(password: String, hash: String): Boolean {
+    return BCrypt.checkpw(password, hash)
+}
+
+fun hashPassword(password: String): String {
+    return BCrypt.hashpw(password, BCrypt.gensalt())
+}
+
+fun Application.security() {
+
+    install(Authentication) {
+        form {
+            userParamName = "username"
+            passwordParamName = "password"
+            challenge = FormAuthChallenge.Redirect { _ ->
+                "/login?onFailure"
+            }
+            validate { credential: UserPasswordCredential ->
+                val user = UserRepository.find(credential.name) ?: return@validate null
+                if (checkPassword(credential.password, user.password)) UserPrinciple(user) else null
+            }
+        }
+    }
+
+    val encryptionKey =
+        hex("80 51 b8 13 b4 73 a9 69 c7 b0 10 ad 08 06 11 e3".replace(" ", ""))
+    val signKey =
+        hex(
+            "d1 20 23 8c 01 f8 f0 0d 9d 7c ff 68 21 97 75 31 38 3f fb 91 20 3a 8d 86 d4 e9 d8 50 f8 71 f1 dc".replace(
+                " ",
+                ""
+            )
+        )
+
+    install(Sessions) {
+        cookie<PortalSession>(
+            "SESSION",
+            directorySessionStorage(File(".sessions"), cached = false)
+        ) {
+            cookie.path = "/"
+            transform(SessionTransportTransformerMessageAuthentication(signKey))
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/database/Connection.kt

@@ -16,9 +16,7 @@ object Connection {
 
         transaction {
             SchemaUtils.create(
-                DbPerson, DbPersonConstraint,
+                DbTrack, DbWorkGroup,
-                DbTrack, DbWorkGroup, DbWorkGroupConstraint,
-                DbLeader, DbWorkGroupOrder,
                 DbRoom, DbSchedule,
                 DbUser, DbUserPermission
             )

src/jvmMain/kotlin/de/kif/backend/database/Schema.kt

@@ -1,71 +1,30 @@
 package de.kif.backend.database
 
-import de.kif.backend.model.Permission
+import de.kif.common.model.Language
+import de.kif.common.model.Permission
 import org.jetbrains.exposed.sql.Table
 
-object DbPerson : Table() {
-    val id = integer("id").autoIncrement().primaryKey()
-    val firstName = varchar("first_name", 64)
-    val lastName = varchar("last_name", 64)
-
-    val arrival = long("arrival").nullable()
-    val departure = long("departure").nullable()
-}
-
-object DbPersonConstraint : Table() {
-    val id = integer("id").autoIncrement().primaryKey()
-    val personId = integer("person_id")
-
-    val type = enumeration("type", DbConstraintType::class)
-    val time = long("time")
-    val duration = integer("duration").default(0)
-    val day = integer("day")
-}
-
 object DbTrack : Table() {
-    val id = integer("id").autoIncrement().primaryKey()
+    val id = long("id").autoIncrement().primaryKey()
     val name = varchar("name", 64)
     val color = varchar("color", 32)
 }
 
 object DbWorkGroup : Table() {
-    val id = integer("id").autoIncrement().primaryKey()
+    val id = long("id").autoIncrement().primaryKey()
     val name = varchar("first_name", 64)
 
     val interested = integer("interested")
-    val trackId = integer("track_id").nullable()
+    val trackId = long("track_id").nullable()
     val projector = bool("projector")
     val resolution = bool("resolution")
     val language = enumeration("language", Language::class)
 
     val length = integer("length")
-
-    val start = long("start").nullable()
-    val end = long("end").nullable()
-}
-
-object DbWorkGroupConstraint : Table() {
-    val id = integer("id").autoIncrement().primaryKey()
-    val workGroupId = integer("work_group_id")
-
-    val type = enumeration("type", DbConstraintType::class)
-    val time = long("time")
-    val duration = integer("duration").default(0)
-    val day = integer("day")
-}
-
-object DbLeader : Table() {
-    val workGroupId = integer("work_group_id").primaryKey(0)
-    val personId = integer("person_id").primaryKey(1)
-}
-
-object DbWorkGroupOrder : Table() {
-    val beforeWorkGroupId = integer("before_work_group_id").primaryKey(0)
-    val afterWorkGroupId = integer("after_work_group_id").primaryKey(1)
 }
 
 object DbRoom : Table() {
-    val id = integer("id").autoIncrement().primaryKey()
+    val id = long("id").autoIncrement().primaryKey()
     val name = varchar("name", 64)
 
     val places = integer("places")
@@ -73,30 +32,20 @@ object DbRoom : Table() {
 }
 
 object DbSchedule : Table() {
-    val workGroupId = integer("work_group_id").primaryKey(0)
+    val id = long("id").autoIncrement().primaryKey()
-    val day = integer("day").primaryKey(1)
+    val workGroupId = long("work_group_id").index()
-    val time = integer("time_slot").primaryKey(2)
+    val roomId = long("room_id").index()
-    val roomId = integer("room_id").primaryKey(3)
+    val day = integer("day").index()
-}
+    val time = integer("time_slot")
-
-enum class DbConstraintType {
-    BEGIN, END, BLOCKED
 }
 
 object DbUser : Table() {
-    val userId = integer("id").autoIncrement().primaryKey()
+    val id = long("id").autoIncrement().primaryKey()
     val username = varchar("username", 64).uniqueIndex()
     val password = varchar("password", 64)
 }
 
 object DbUserPermission : Table() {
-    val userId = integer("id").primaryKey(0)
+    val userId = long("id").primaryKey(0)
     val permission = enumeration("permission", Permission::class).primaryKey(1)
 }
-
-enum class Language(val value: String) {
-    GERMAN("Deutsch"), ENGLISH("English");
-
-    override fun toString() = value
-    val code = value.take(2).toLowerCase()
-}

src/jvmMain/kotlin/de/kif/backend/model/Person.kt

@@ -1,89 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbPerson
-import de.kif.backend.database.DbPersonConstraint
-import de.kif.backend.database.dbQuery
-import org.jetbrains.exposed.sql.*
-
-class Person(
-    var id: Int = -1,
-    var firstName: String = "",
-    var lastName: String = "",
-    var arrival: Long? = null,
-    var departure: Long? = null
-) {
-    var constraints: Set<PersonConstraint> = emptySet()
-
-    suspend fun save() {
-        if (id < 0) {
-            dbQuery {
-                val newId = DbPerson.insert {
-                    it[firstName] = this@Person.firstName
-                    it[lastName] = this@Person.lastName
-                    it[arrival] = this@Person.arrival
-                    it[departure] = this@Person.departure
-                }[DbPerson.id]!!
-                this@Person.id = newId
-            }
-            for (constraint in constraints) {
-                constraint.save(this@Person.id)
-            }
-        } else {
-            dbQuery {
-                DbPerson.update({ DbPerson.id eq id }) {
-                    it[firstName] = this@Person.firstName
-                    it[lastName] = this@Person.lastName
-                    it[arrival] = this@Person.arrival
-                    it[departure] = this@Person.departure
-                }
-
-                DbPersonConstraint.deleteWhere { DbPersonConstraint.personId eq id }
-            }
-            for (constraint in constraints) {
-                constraint.save(this@Person.id)
-            }
-        }
-    }
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            dbQuery {
-                DbPersonConstraint.deleteWhere { DbPersonConstraint.personId eq id }
-                DbPerson.deleteWhere { DbPerson.id eq id }
-            }
-        }
-    }
-
-    suspend fun loadConstraints() {
-        if (id >= 0) {
-            constraints = PersonConstraint.get(id)
-        }
-    }
-
-    companion object {
-        suspend fun get(personId: Int): Person? = dbQuery {
-            val result = DbPerson.select { DbPerson.id eq personId }.firstOrNull() ?: return@dbQuery null
-            Person(
-                result[DbPerson.id],
-                result[DbPerson.firstName],
-                result[DbPerson.lastName],
-                result[DbPerson.arrival],
-                result[DbPerson.departure]
-            )
-        }?.apply { loadConstraints() }
-
-        suspend fun list(): List<Person> = dbQuery {
-            val query = DbPerson.selectAll()
-            query.map { result ->
-                Person(
-                    result[DbPerson.id],
-                    result[DbPerson.firstName],
-                    result[DbPerson.lastName],
-                    result[DbPerson.arrival],
-                    result[DbPerson.departure]
-                )
-            }
-        }.onEach { it.loadConstraints() }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/PersonConstraint.kt

@@ -1,132 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbConstraintType
-import de.kif.backend.database.DbPersonConstraint
-import de.kif.backend.database.dbQuery
-import org.jetbrains.exposed.sql.deleteWhere
-import org.jetbrains.exposed.sql.insert
-import org.jetbrains.exposed.sql.select
-import org.jetbrains.exposed.sql.update
-
-sealed class PersonConstraint(
-    var id: Int = -1
-) {
-
-    abstract suspend fun save(personId: Int)
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            dbQuery {
-                DbPersonConstraint.deleteWhere { DbPersonConstraint.id eq id }
-            }
-        }
-    }
-
-    class BeginOnDay(
-        var time: Long = 0,
-        var day: Int = 0
-    ) : PersonConstraint() {
-        override suspend fun save(personId: Int) {
-            if (id < 0) {
-                dbQuery {
-                    val newId = DbPersonConstraint.insert {
-                        it[this@insert.personId] = personId
-                        it[type] = DbConstraintType.BEGIN
-                        it[time] = this@BeginOnDay.time
-                        it[day] = this@BeginOnDay.day
-                    }[DbPersonConstraint.id]!!
-                    this@BeginOnDay.id = newId
-                }
-            } else {
-                dbQuery {
-                    DbPersonConstraint.update({ DbPersonConstraint.id eq id }) {
-                        it[this@update.personId] = personId
-                        it[type] = DbConstraintType.BEGIN
-                        it[time] = this@BeginOnDay.time
-                        it[day] = this@BeginOnDay.day
-                    }
-                }
-            }
-        }
-    }
-
-    class EndOnDay(
-        var time: Long = 0,
-        var day: Int = 0
-    ) : PersonConstraint() {
-        override suspend fun save(personId: Int) {
-            if (id < 0) {
-                dbQuery {
-                    val newId = DbPersonConstraint.insert {
-                        it[this@insert.personId] = personId
-                        it[type] = DbConstraintType.END
-                        it[time] = this@EndOnDay.time
-                        it[day] = this@EndOnDay.day
-                    }[DbPersonConstraint.id]!!
-                    this@EndOnDay.id = newId
-                }
-            } else {
-                dbQuery {
-                    DbPersonConstraint.update({ DbPersonConstraint.id eq id }) {
-                        it[this@update.personId] = personId
-                        it[type] = DbConstraintType.END
-                        it[time] = this@EndOnDay.time
-                        it[day] = this@EndOnDay.day
-                    }
-                }
-            }
-        }
-    }
-
-    class BlockedOnDay(
-        var time: Long = 0,
-        var duration: Int = 0,
-        var day: Int = 0
-    ) : PersonConstraint() {
-
-        override suspend fun save(personId: Int) {
-            if (id < 0) {
-                dbQuery {
-                    val newId = DbPersonConstraint.insert {
-                        it[this@insert.personId] = personId
-                        it[type] = DbConstraintType.BLOCKED
-                        it[time] = this@BlockedOnDay.time
-                        it[duration] = this@BlockedOnDay.duration
-                        it[day] = this@BlockedOnDay.day
-                    }[DbPersonConstraint.id]!!
-                    this@BlockedOnDay.id = newId
-                }
-            } else {
-                dbQuery {
-                    DbPersonConstraint.update({ DbPersonConstraint.id eq id }) {
-                        it[this@update.personId] = personId
-                        it[type] = DbConstraintType.BLOCKED
-                        it[time] = this@BlockedOnDay.time
-                        it[duration] = this@BlockedOnDay.duration
-                        it[day] = this@BlockedOnDay.day
-                    }
-                }
-            }
-        }
-    }
-
-    companion object {
-        suspend fun get(personId: Int): Set<PersonConstraint> = dbQuery {
-            val result = DbPersonConstraint.select { DbPersonConstraint.personId eq personId }
-            result.map {
-                val id = it[DbPersonConstraint.id]
-                val type = it[DbPersonConstraint.type]
-                val time = it[DbPersonConstraint.time]
-                val duration = it[DbPersonConstraint.duration]
-                val day = it[DbPersonConstraint.day]
-
-                when (type) {
-                    DbConstraintType.BEGIN -> PersonConstraint.BeginOnDay(time, day)
-                    DbConstraintType.END -> PersonConstraint.EndOnDay(time, day)
-                    DbConstraintType.BLOCKED -> PersonConstraint.BlockedOnDay(time, duration, day)
-                }.also { it.id = id }
-            }.toSet()
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/Room.kt

@@ -1,85 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbRoom
-import de.kif.backend.database.dbQuery
-import org.jetbrains.exposed.sql.*
-
-class Room(
-    var id: Int = -1,
-    var name: String = "",
-    var places: Int = 0,
-    var projector: Boolean = false
-) {
-    suspend fun save() {
-        if (id < 0) {
-            dbQuery {
-                val newId = DbRoom.insert {
-                    it[name] = this@Room.name
-                    it[places] = this@Room.places
-                    it[projector] = this@Room.projector
-                }[DbRoom.id]!!
-                this@Room.id = newId
-            }
-        } else {
-            dbQuery {
-                DbRoom.update({ DbRoom.id eq id }) {
-                    it[name] = this@Room.name
-                    it[places] = this@Room.places
-                    it[projector] = this@Room.projector
-                }
-            }
-        }
-    }
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            for (it in Schedule.getByRoom(id)) {
-                it.delete()
-            }
-            dbQuery {
-                DbRoom.deleteWhere { DbRoom.id eq id }
-            }
-        }
-    }
-
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as Room
-
-        if (id != other.id) return false
-
-        return true
-    }
-
-    override fun hashCode(): Int {
-        return id
-    }
-
-
-    companion object {
-        suspend fun get(roomId: Int): Room = dbQuery {
-            val result = DbRoom.select { DbRoom.id eq roomId }.firstOrNull() ?: throw IllegalArgumentException()
-            Room(
-                result[DbRoom.id],
-                result[DbRoom.name],
-                result[DbRoom.places],
-                result[DbRoom.projector]
-            )
-        }
-
-        suspend fun list(): List<Room> = dbQuery {
-            val query = DbRoom.selectAll()
-            query.map { result ->
-                Room(
-                    result[DbRoom.id],
-                    result[DbRoom.name],
-                    result[DbRoom.places],
-                    result[DbRoom.projector]
-                )
-            }
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/Schedule.kt

@@ -1,99 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbSchedule
-import de.kif.backend.database.dbQuery
-import org.jetbrains.exposed.sql.*
-
-data class Schedule(
-    val workGroupId: Int,
-    val day: Int,
-    val time: Int,
-    val roomId: Int
-) {
-    lateinit var workGroup: WorkGroup
-    lateinit var room: Room
-
-    suspend fun save() {
-        delete()
-        dbQuery {
-            DbSchedule.insert {
-                it[workGroupId] = this@Schedule.workGroupId
-                it[day] = this@Schedule.day
-                it[time] = this@Schedule.time
-                it[roomId] = this@Schedule.roomId
-            }
-        }
-    }
-
-    suspend fun delete() {
-        dbQuery {
-            DbSchedule.deleteWhere {
-                (DbSchedule.workGroupId eq workGroupId) and
-                        (DbSchedule.day eq day) and
-                        (DbSchedule.time eq time) and
-                        (DbSchedule.roomId eq roomId)
-            }
-        }
-    }
-
-    suspend fun loadConstraints() {
-        try {
-            workGroup = WorkGroup.get(workGroupId)
-            room = Room.get(roomId)
-        } catch (e: IllegalArgumentException) {
-            delete()
-            throw e
-        }
-    }
-
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (javaClass != other?.javaClass) return false
-
-        other as Schedule
-
-        if (workGroupId != other.workGroupId) return false
-
-        return true
-    }
-
-    override fun hashCode(): Int {
-        return workGroupId
-    }
-
-    companion object {
-
-        private suspend fun parseQuery(block: () -> Query): List<Schedule> =
-            dbQuery {
-                val query = block()
-                query.map { result ->
-                    Schedule(
-                        result[DbSchedule.workGroupId],
-                        result[DbSchedule.day],
-                        result[DbSchedule.time],
-                        result[DbSchedule.roomId]
-                    )
-                }
-            }.onEach { it.loadConstraints() }
-
-        suspend fun getByRoom(roomId: Int): List<Schedule> = parseQuery {
-            DbSchedule.select { DbSchedule.roomId eq roomId }
-        }
-
-        suspend fun getByRoom(roomId: Int, day: Int, time: Int): List<Schedule> = parseQuery {
-            DbSchedule.select { (DbSchedule.roomId eq roomId) and (DbSchedule.day eq day) and (DbSchedule.time eq time) }
-        }
-
-        suspend fun getByWorkGroup(workGroupId: Int): List<Schedule> = parseQuery {
-            DbSchedule.select { DbSchedule.workGroupId eq workGroupId }
-        }
-
-        suspend fun getByDay(day: Int): List<Schedule> = parseQuery {
-            DbSchedule.select { DbSchedule.day eq day }
-        }
-
-        suspend fun list(): List<Schedule> = parseQuery {
-            DbSchedule.selectAll()
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/Track.kt

@@ -1,63 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbTrack
-import de.kif.backend.database.dbQuery
-import kif.common.model.Color
-import org.jetbrains.exposed.sql.*
-import java.lang.IllegalArgumentException
-
-class Track(
-    var id: Int = -1,
-    var name: String = "",
-    var color: Color
-) {
-    suspend fun save() {
-        if (id < 0) {
-            dbQuery {
-                val newId = DbTrack.insert {
-                    it[name] = this@Track.name
-                    it[color] = this@Track.color.toString()
-                }[DbTrack.id]!!
-                this@Track.id = newId
-            }
-        } else {
-            dbQuery {
-                DbTrack.update({ DbTrack.id eq id }) {
-                    it[name] = this@Track.name
-                    it[color] = this@Track.color.toString()
-                }
-            }
-        }
-    }
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            dbQuery {
-                DbTrack.deleteWhere { DbTrack.id eq id }
-            }
-        }
-    }
-
-    companion object {
-        suspend fun get(TrackId: Int): Track = dbQuery {
-            val result = DbTrack.select { DbTrack.id eq TrackId }.firstOrNull() ?: throw IllegalArgumentException()
-            Track(
-                result[DbTrack.id],
-                result[DbTrack.name],
-                Color.parse(result[DbTrack.color])
-            )
-        }
-
-        suspend fun list(): List<Track> = dbQuery {
-            val query = DbTrack.selectAll()
-            query.map { result ->
-                Track(
-                    result[DbTrack.id],
-                    result[DbTrack.name],
-                    Color.parse(result[DbTrack.color])
-                )
-            }
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/User.kt

@@ -1,110 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbUser
-import de.kif.backend.database.DbUserPermission
-import de.kif.backend.database.dbQuery
-import io.ktor.auth.Principal
-import org.jetbrains.exposed.sql.*
-import org.mindrot.jbcrypt.BCrypt
-
-class User(
-    var id: Int = -1,
-    var username: String = "",
-    private var password: String = ""
-) : Principal {
-    var permissions: Set<Permission> = emptySet()
-
-    fun checkPassword(password: String): Boolean {
-        return BCrypt.checkpw(password, this.password)
-    }
-
-    fun hashPassword(newPassword: String) {
-        password = BCrypt.hashpw(newPassword, BCrypt.gensalt())
-    }
-
-    fun checkPermission(permission: Permission): Boolean {
-        return permission in permissions || Permission.ADMIN in permissions
-    }
-
-    suspend fun loadPermissions() = dbQuery {
-        permissions = DbUserPermission.slice(DbUserPermission.permission).select {
-            DbUserPermission.userId eq id
-        }.map { it[DbUserPermission.permission] }.toSet()
-    }
-
-    suspend fun save() {
-        if (id < 0) {
-            dbQuery {
-                val newId = DbUser.insert {
-                    it[username] = this@User.username
-                    it[password] = this@User.password
-                }[DbUser.userId]!!
-                this@User.id = newId
-
-                for (permission in permissions) {
-                    DbUserPermission.insert {
-                        it[userId] = newId
-                        it[this.permission] = permission
-                    }
-                }
-            }
-        } else {
-            dbQuery {
-                DbUser.update({ DbUser.userId eq id }) {
-                    it[username] = this@User.username
-                    it[password] = this@User.password
-                }
-
-                DbUserPermission.deleteWhere { DbUserPermission.userId eq id }
-
-                for (permission in permissions) {
-                    DbUserPermission.insert {
-                        it[userId] = id
-                        it[this.permission] = permission
-                    }
-                }
-            }
-        }
-    }
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            dbQuery {
-                DbUserPermission.deleteWhere { DbUserPermission.userId eq id }
-                DbUser.deleteWhere { DbUser.userId eq id }
-            }
-        }
-    }
-
-    companion object {
-        suspend fun create(username: String, password: String, permissions: Set<Permission>) {
-            val user = User(username = username)
-            user.hashPassword(password)
-            user.permissions = permissions
-            user.save()
-        }
-
-        suspend fun find(username: String): User? = dbQuery {
-            val result = DbUser.select { DbUser.username eq username }.firstOrNull() ?: return@dbQuery null
-            User(result[DbUser.userId], result[DbUser.username], result[DbUser.password])
-
-        }?.apply { loadPermissions() }
-
-        suspend fun get(userId: Int): User? = dbQuery {
-            val result = DbUser.select { DbUser.userId eq userId }.firstOrNull() ?: return@dbQuery null
-            User(result[DbUser.userId], result[DbUser.username], result[DbUser.password])
-        }?.apply { loadPermissions() }
-
-        suspend fun list(): List<User> = dbQuery {
-            val query = DbUser.selectAll()
-            query.map { result ->
-                User(result[DbUser.userId], result[DbUser.username], result[DbUser.password])
-            }
-        }.onEach { it.loadPermissions() }
-
-        suspend fun exists(): Boolean = dbQuery {
-            DbUser.selectAll().count() == 0
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/WorkGroup.kt

@@ -1,121 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbWorkGroup
-import de.kif.backend.database.DbWorkGroupConstraint
-import de.kif.backend.database.Language
-import de.kif.backend.database.dbQuery
-import io.ktor.features.NotFoundException
-import org.jetbrains.exposed.sql.*
-
-class WorkGroup(
-    var id: Int = -1,
-    var name: String = "",
-    var interested: Int = 0,
-    var trackId: Int? = null,
-    var projector: Boolean = false,
-    var resolution: Boolean = false,
-    var length: Int = 0,
-    var language: Language = Language.GERMAN,
-    var start: Long? = null,
-    var end: Long? = null
-) {
-    var constraints: Set<WorkGroupConstraint> = emptySet()
-    var track: Track? = null
-
-    suspend fun save() {
-        if (id < 0) {
-            dbQuery {
-                val newId = DbWorkGroup.insert {
-                    it[name] = this@WorkGroup.name
-                    it[interested] = this@WorkGroup.interested
-                    it[trackId] = this@WorkGroup.trackId
-                    it[projector] = this@WorkGroup.projector
-                    it[resolution] = this@WorkGroup.resolution
-                    it[length] = this@WorkGroup.length
-                    it[language] = this@WorkGroup.language
-                    it[start] = this@WorkGroup.start
-                    it[end] = this@WorkGroup.end
-                }[DbWorkGroup.id]!!
-                this@WorkGroup.id = newId
-            }
-            for (constraint in constraints) {
-                constraint.save(this@WorkGroup.id)
-            }
-        } else {
-            dbQuery {
-                DbWorkGroup.update({ DbWorkGroup.id eq id }) {
-                    it[name] = this@WorkGroup.name
-                    it[interested] = this@WorkGroup.interested
-                    it[trackId] = this@WorkGroup.trackId
-                    it[projector] = this@WorkGroup.projector
-                    it[resolution] = this@WorkGroup.resolution
-                    it[length] = this@WorkGroup.length
-                    it[language] = this@WorkGroup.language
-                    it[start] = this@WorkGroup.start
-                    it[end] = this@WorkGroup.end
-                }
-
-                DbWorkGroupConstraint.deleteWhere { DbWorkGroupConstraint.workGroupId eq id }
-            }
-            for (constraint in constraints) {
-                constraint.save(this@WorkGroup.id)
-            }
-        }
-    }
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            for (it in Schedule.getByWorkGroup(id)) {
-                it.delete()
-            }
-            dbQuery {
-                DbWorkGroupConstraint.deleteWhere { DbWorkGroupConstraint.workGroupId eq id }
-                DbWorkGroup.deleteWhere { DbWorkGroup.id eq id }
-            }
-        }
-    }
-
-    suspend fun loadConstraints() {
-        if (id >= 0) {
-            constraints = WorkGroupConstraint.get(id)
-            track = trackId?.let { if (it < 0) null else Track.get(it) }
-        }
-    }
-
-    companion object {
-        suspend fun get(workGroupId: Int): WorkGroup = dbQuery {
-            val result = DbWorkGroup.select { DbWorkGroup.id eq workGroupId }.firstOrNull() ?: throw IllegalArgumentException()
-            WorkGroup(
-                result[DbWorkGroup.id],
-                result[DbWorkGroup.name],
-                result[DbWorkGroup.interested],
-                result[DbWorkGroup.trackId],
-                result[DbWorkGroup.projector],
-                result[DbWorkGroup.resolution],
-                result[DbWorkGroup.length],
-                result[DbWorkGroup.language],
-                result[DbWorkGroup.start],
-                result[DbWorkGroup.end]
-            )
-        }.apply { loadConstraints() }
-
-        suspend fun list(): List<WorkGroup> = dbQuery {
-            val query = DbWorkGroup.selectAll()
-            query.map { result ->
-                WorkGroup(
-                    result[DbWorkGroup.id],
-                    result[DbWorkGroup.name],
-                    result[DbWorkGroup.interested],
-                    result[DbWorkGroup.trackId],
-                    result[DbWorkGroup.projector],
-                    result[DbWorkGroup.resolution],
-                    result[DbWorkGroup.length],
-                    result[DbWorkGroup.language],
-                    result[DbWorkGroup.start],
-                    result[DbWorkGroup.end]
-                )
-            }
-        }.onEach { it.loadConstraints() }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/model/WorkGroupConstraint.kt

@@ -1,132 +0,0 @@
-package de.kif.backend.model
-
-import de.kif.backend.database.DbConstraintType
-import de.kif.backend.database.DbWorkGroupConstraint
-import de.kif.backend.database.dbQuery
-import org.jetbrains.exposed.sql.deleteWhere
-import org.jetbrains.exposed.sql.insert
-import org.jetbrains.exposed.sql.select
-import org.jetbrains.exposed.sql.update
-
-sealed class WorkGroupConstraint(
-    var id: Int = -1
-) {
-
-    abstract suspend fun save(workGroupId: Int)
-
-    suspend fun delete() {
-        val id = id
-        if (id >= 0) {
-            dbQuery {
-                DbWorkGroupConstraint.deleteWhere { DbWorkGroupConstraint.id eq id }
-            }
-        }
-    }
-
-    class BeginOnDay(
-        var time: Long = 0,
-        var day: Int = 0
-    ) : WorkGroupConstraint() {
-        override suspend fun save(workGroupId: Int) {
-            if (id < 0) {
-                dbQuery {
-                    val newId = DbWorkGroupConstraint.insert {
-                        it[this@insert.workGroupId] = workGroupId
-                        it[type] = DbConstraintType.BEGIN
-                        it[time] = this@BeginOnDay.time
-                        it[day] = this@BeginOnDay.day
-                    }[DbWorkGroupConstraint.id]!!
-                    this@BeginOnDay.id = newId
-                }
-            } else {
-                dbQuery {
-                    DbWorkGroupConstraint.update({ DbWorkGroupConstraint.id eq id }) {
-                        it[this@update.workGroupId] = workGroupId
-                        it[type] = DbConstraintType.BEGIN
-                        it[time] = this@BeginOnDay.time
-                        it[day] = this@BeginOnDay.day
-                    }
-                }
-            }
-        }
-    }
-
-    class EndOnDay(
-        var time: Long = 0,
-        var day: Int = 0
-    ) : WorkGroupConstraint() {
-        override suspend fun save(workGroupId: Int) {
-            if (id < 0) {
-                dbQuery {
-                    val newId = DbWorkGroupConstraint.insert {
-                        it[this@insert.workGroupId] = workGroupId
-                        it[type] = DbConstraintType.END
-                        it[time] = this@EndOnDay.time
-                        it[day] = this@EndOnDay.day
-                    }[DbWorkGroupConstraint.id]!!
-                    this@EndOnDay.id = newId
-                }
-            } else {
-                dbQuery {
-                    DbWorkGroupConstraint.update({ DbWorkGroupConstraint.id eq id }) {
-                        it[this@update.workGroupId] = workGroupId
-                        it[type] = DbConstraintType.END
-                        it[time] = this@EndOnDay.time
-                        it[day] = this@EndOnDay.day
-                    }
-                }
-            }
-        }
-    }
-
-    class BlockedOnDay(
-        var time: Long = 0,
-        var duration: Int = 0,
-        var day: Int = 0
-    ) : WorkGroupConstraint() {
-
-        override suspend fun save(workGroupId: Int) {
-            if (id < 0) {
-                dbQuery {
-                    val newId = DbWorkGroupConstraint.insert {
-                        it[this@insert.workGroupId] = workGroupId
-                        it[type] = DbConstraintType.BLOCKED
-                        it[time] = this@BlockedOnDay.time
-                        it[duration] = this@BlockedOnDay.duration
-                        it[day] = this@BlockedOnDay.day
-                    }[DbWorkGroupConstraint.id]!!
-                    this@BlockedOnDay.id = newId
-                }
-            } else {
-                dbQuery {
-                    DbWorkGroupConstraint.update({ DbWorkGroupConstraint.id eq id }) {
-                        it[this@update.workGroupId] = workGroupId
-                        it[type] = DbConstraintType.BLOCKED
-                        it[time] = this@BlockedOnDay.time
-                        it[duration] = this@BlockedOnDay.duration
-                        it[day] = this@BlockedOnDay.day
-                    }
-                }
-            }
-        }
-    }
-
-    companion object {
-        suspend fun get(workGroupId: Int): Set<WorkGroupConstraint> = dbQuery {
-            val result = DbWorkGroupConstraint.select { DbWorkGroupConstraint.workGroupId eq workGroupId }
-            result.map {
-                val id = it[DbWorkGroupConstraint.id]
-                val type = it[DbWorkGroupConstraint.type]
-                val time = it[DbWorkGroupConstraint.time]
-                val duration = it[DbWorkGroupConstraint.duration]
-                val day = it[DbWorkGroupConstraint.day]
-
-                when (type) {
-                    DbConstraintType.BEGIN -> WorkGroupConstraint.BeginOnDay(time, day)
-                    DbConstraintType.END -> WorkGroupConstraint.EndOnDay(time, day)
-                    DbConstraintType.BLOCKED -> WorkGroupConstraint.BlockedOnDay(time, duration, day)
-                }.also { it.id = id }
-            }.toSet()
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/repository/RoomRepository.kt

@@ -0,0 +1,93 @@
+package de.kif.backend.repository
+
+import de.kif.backend.database.DbRoom
+import de.kif.backend.database.dbQuery
+import de.kif.backend.util.PushService
+import de.kif.common.*
+import de.kif.common.model.Room
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.exposed.sql.*
+
+object RoomRepository : Repository<Room> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private fun rowToModel(row: ResultRow): Room {
+        val id = row[DbRoom.id]
+        val name = row[DbRoom.name]
+        val places = row[DbRoom.places]
+        val projector = row[DbRoom.projector]
+
+        return Room(id, name, places, projector)
+    }
+
+    override suspend fun get(id: Long): Room? {
+        return dbQuery {
+            rowToModel(DbRoom.select { DbRoom.id eq id }.firstOrNull() ?: return@dbQuery null)
+        }
+    }
+
+    override suspend fun create(model: Room): Long {
+        return dbQuery {
+            val id = DbRoom.insert {
+                it[name] = model.name
+                it[places] = model.places
+                it[projector] = model.projector
+            }[DbRoom.id] ?: throw IllegalStateException("Cannot create model!")
+
+            onCreate.emit(id)
+
+            id
+        }
+    }
+
+    override suspend fun update(model: Room) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        dbQuery {
+            DbRoom.update({ DbRoom.id eq model.id }) {
+                it[name] = model.name
+                it[places] = model.places
+                it[projector] = model.projector
+            }
+
+            onUpdate.emit(model.id)
+        }
+    }
+
+    override suspend fun delete(id: Long) {
+        onDelete.emit(id)
+
+        dbQuery {
+            DbRoom.deleteWhere { DbRoom.id eq id }
+        }
+    }
+
+    override suspend fun all(): List<Room> {
+        return dbQuery {
+            val result = DbRoom.selectAll()
+
+            result.map(this::rowToModel)
+        }
+    }
+
+    fun registerPushService() {
+        onCreate {
+            runBlocking {
+                PushService.notify(MessageType.CREATE, RepositoryType.ROOM, it)
+            }
+        }
+        onUpdate {
+            runBlocking {
+                PushService.notify(MessageType.UPDATE, RepositoryType.ROOM, it)
+            }
+        }
+        onDelete {
+            runBlocking {
+                PushService.notify(MessageType.DELETE, RepositoryType.ROOM, it)
+            }
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/repository/ScheduleRepository.kt

@@ -0,0 +1,177 @@
+package de.kif.backend.repository
+
+import de.kif.backend.database.DbSchedule
+import de.kif.backend.database.dbQuery
+import de.kif.backend.util.PushService
+import de.kif.common.*
+import de.kif.common.model.Schedule
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.exposed.sql.*
+
+object ScheduleRepository : Repository<Schedule> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private suspend fun rowToModel(row: ResultRow): Schedule {
+        val id = row[DbSchedule.id]
+        val workGroupId = row[DbSchedule.workGroupId]
+        val roomId = row[DbSchedule.roomId]
+        val day = row[DbSchedule.day]
+        val time = row[DbSchedule.time]
+
+        val workGroup = WorkGroupRepository.get(workGroupId)
+            ?: throw IllegalStateException("Work group for schedule does not exist!")
+        val room = RoomRepository.get(roomId)
+            ?: throw IllegalStateException("Room for schedule does not exist!")
+
+        return Schedule(id, workGroup, room, day, time)
+    }
+
+    override suspend fun get(id: Long): Schedule? {
+        return dbQuery {
+            val row = DbSchedule.select { DbSchedule.id eq id }.firstOrNull() ?: return@dbQuery null
+
+            runBlocking {
+                rowToModel(row)
+            }
+        }
+    }
+
+    override suspend fun create(model: Schedule): Long {
+        return dbQuery {
+            val id = DbSchedule.insert {
+                it[workGroupId] = model.workGroup.id ?: throw IllegalArgumentException("Work group does not exist!")
+                it[roomId] = model.room.id ?: throw IllegalArgumentException("Room does not exist!")
+                it[day] = model.day
+                it[time] = model.time
+            }[DbSchedule.id] ?: throw IllegalStateException("Cannot create model!")
+
+            onCreate.emit(id)
+
+            id
+        }
+    }
+
+    override suspend fun update(model: Schedule) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        dbQuery {
+            DbSchedule.update({ DbSchedule.id eq model.id }) {
+                it[workGroupId] = model.workGroup.id ?: throw IllegalArgumentException("Work group does not exist!")
+                it[roomId] = model.room.id ?: throw IllegalArgumentException("Room does not exist!")
+                it[day] = model.day
+                it[time] = model.time
+            }
+
+            onUpdate.emit(model.id)
+        }
+    }
+
+    override suspend fun delete(id: Long) {
+        onDelete.emit(id)
+
+        dbQuery {
+            DbSchedule.deleteWhere { DbSchedule.id eq id }
+        }
+    }
+
+    override suspend fun all(): List<Schedule> {
+        return dbQuery {
+            val result = DbSchedule.selectAll()
+
+            runBlocking {
+                result.map {
+                    rowToModel(it)
+                }
+            }
+        }
+    }
+
+    suspend fun getByDay(day: Int): List<Schedule> {
+        return dbQuery {
+            val result = DbSchedule.select { DbSchedule.day eq day }
+
+            runBlocking {
+                result.map {
+                    rowToModel(it)
+                }
+            }
+        }
+    }
+
+    suspend fun getByWorkGroup(workGroupId: Long): List<Schedule> {
+        return dbQuery {
+            val result = DbSchedule.select { DbSchedule.workGroupId eq workGroupId }
+
+            runBlocking {
+                result.map {
+                    rowToModel(it)
+                }
+            }
+        }
+    }
+
+    suspend fun getByRoom(roomId: Long): List<Schedule> {
+        return dbQuery {
+            val result = DbSchedule.select { DbSchedule.roomId eq roomId }
+
+            runBlocking {
+                result.map {
+                    rowToModel(it)
+                }
+            }
+        }
+    }
+
+    init {
+        RoomRepository.onUpdate { roomId ->
+            runBlocking {
+                getByRoom(roomId).forEach { schedule ->
+                    if (schedule.id != null) onUpdate.emit(schedule.id)
+                }
+            }
+        }
+        RoomRepository.onDelete { roomId ->
+            runBlocking {
+                getByRoom(roomId).forEach { schedule ->
+                    if (schedule.id != null) delete(schedule.id)
+                }
+            }
+        }
+
+        WorkGroupRepository.onUpdate { workGroupId ->
+            runBlocking {
+                getByWorkGroup(workGroupId).forEach { schedule ->
+                    if (schedule.id != null) onUpdate.emit(schedule.id)
+                }
+            }
+        }
+        WorkGroupRepository.onDelete { workGroupId ->
+            runBlocking {
+                getByWorkGroup(workGroupId).forEach { schedule ->
+                    if (schedule.id != null) delete(schedule.id)
+                }
+            }
+        }
+    }
+
+    fun registerPushService() {
+        onCreate {
+            runBlocking {
+                PushService.notify(MessageType.CREATE, RepositoryType.SCHEDULE, it)
+            }
+        }
+        onUpdate {
+            runBlocking {
+                PushService.notify(MessageType.UPDATE, RepositoryType.SCHEDULE, it)
+            }
+        }
+        onDelete {
+            runBlocking {
+                PushService.notify(MessageType.DELETE, RepositoryType.SCHEDULE, it)
+            }
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/repository/TrackRepository.kt

@@ -0,0 +1,93 @@
+package de.kif.backend.repository
+
+import de.kif.backend.database.DbTrack
+import de.kif.backend.database.dbQuery
+import de.kif.backend.util.PushService
+import de.kif.common.MessageType
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.Track
+import de.kif.common.model.parseColor
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.exposed.sql.*
+
+object TrackRepository : Repository<Track> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private fun rowToModel(row: ResultRow): Track {
+        val id = row[DbTrack.id]
+        val name = row[DbTrack.name]
+        val color = row[DbTrack.color].parseColor()
+
+        return Track(id, name, color)
+    }
+
+    override suspend fun get(id: Long): Track? {
+        return dbQuery {
+            rowToModel(DbTrack.select { DbTrack.id eq id }.firstOrNull() ?: return@dbQuery null)
+        }
+    }
+
+    override suspend fun create(model: Track): Long {
+        return dbQuery {
+            val id = DbTrack.insert {
+                it[name] = model.name
+                it[color] = model.color.toString()
+            }[DbTrack.id] ?: throw IllegalStateException("Cannot create model!")
+
+            onCreate.emit(id)
+
+            id
+        }
+    }
+
+    override suspend fun update(model: Track) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        dbQuery {
+            DbTrack.update({ DbTrack.id eq model.id }) {
+                it[name] = model.name
+                it[color] = model.color.toString()
+            }
+
+            onUpdate.emit(model.id)
+        }
+    }
+
+    override suspend fun delete(id: Long) {
+        onDelete.emit(id)
+
+        dbQuery {
+            DbTrack.deleteWhere { DbTrack.id eq id }
+        }
+    }
+
+    override suspend fun all(): List<Track> {
+        return dbQuery {
+            val result = DbTrack.selectAll()
+
+            result.map(this::rowToModel)
+        }
+    }
+
+    fun registerPushService() {
+        onCreate {
+            runBlocking {
+                PushService.notify(MessageType.CREATE, RepositoryType.TRACK, it)
+            }
+        }
+        onUpdate {
+            runBlocking {
+                PushService.notify(MessageType.UPDATE, RepositoryType.TRACK, it)
+            }
+        }
+        onDelete {
+            runBlocking {
+                PushService.notify(MessageType.DELETE, RepositoryType.TRACK, it)
+            }
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/repository/UserRepository.kt

@@ -0,0 +1,120 @@
+package de.kif.backend.repository
+
+import de.kif.backend.database.DbUser
+import de.kif.backend.database.DbUserPermission
+import de.kif.backend.database.dbQuery
+import de.kif.backend.util.PushService
+import de.kif.common.MessageType
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.User
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.exposed.sql.*
+
+object UserRepository : Repository<User> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private fun rowToModel(row: ResultRow): User {
+        val id = row[DbUser.id]
+        val username = row[DbUser.username]
+        val password = row[DbUser.password]
+
+        val permissions = DbUserPermission.slice(DbUserPermission.permission).select {
+            DbUserPermission.userId eq id
+        }.map { it[DbUserPermission.permission] }.toSet()
+
+        return User(id, username, password, permissions)
+    }
+
+    override suspend fun get(id: Long): User? {
+        return dbQuery {
+            rowToModel(DbUser.select { DbUser.id eq id }.firstOrNull() ?: return@dbQuery null)
+        }
+    }
+
+    override suspend fun create(model: User): Long {
+        return dbQuery {
+            val id = DbUser.insert {
+                it[username] = model.username
+                it[password] = model.password
+            }[DbUser.id] ?: throw IllegalStateException("Cannot create model!")
+
+            for (permission in model.permissions) {
+                DbUserPermission.insert {
+                    it[userId] = id
+                    it[this.permission] = permission
+                }
+            }
+
+            onCreate.emit(id)
+
+            id
+        }
+    }
+
+    override suspend fun update(model: User) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        dbQuery {
+            DbUser.update({ DbUser.id eq model.id }) {
+                it[username] = model.username
+                it[password] = model.password
+            }
+
+            DbUserPermission.deleteWhere { DbUserPermission.userId eq model.id }
+
+            for (permission in model.permissions) {
+                DbUserPermission.insert {
+                    it[userId] = model.id
+                    it[this.permission] = permission
+                }
+            }
+
+            onUpdate.emit(model.id)
+        }
+    }
+
+    override suspend fun delete(id: Long) {
+        onDelete.emit(id)
+
+        dbQuery {
+            DbUserPermission.deleteWhere { DbUserPermission.userId eq id }
+            DbUser.deleteWhere { DbUser.id eq id }
+        }
+    }
+
+    override suspend fun all(): List<User> {
+        return dbQuery {
+            val result = DbUser.selectAll()
+
+            result.map(this::rowToModel)
+        }
+    }
+
+    suspend fun find(username: String): User? {
+        return dbQuery {
+            rowToModel(DbUser.select { DbUser.username eq username }.firstOrNull() ?: return@dbQuery null)
+        }
+    }
+
+    fun registerPushService() {
+        onCreate {
+            runBlocking {
+                PushService.notify(MessageType.CREATE, RepositoryType.USER, it)
+            }
+        }
+        onUpdate {
+            runBlocking {
+                PushService.notify(MessageType.UPDATE, RepositoryType.USER, it)
+            }
+        }
+        onDelete {
+            runBlocking {
+                PushService.notify(MessageType.DELETE, RepositoryType.USER, it)
+            }
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/repository/WorkGroupRepository.kt

@@ -0,0 +1,148 @@
+package de.kif.backend.repository
+
+import de.kif.backend.database.DbWorkGroup
+import de.kif.backend.database.dbQuery
+import de.kif.backend.util.PushService
+import de.kif.common.MessageType
+import de.kif.common.Repository
+import de.kif.common.RepositoryType
+import de.kif.common.model.WorkGroup
+import de.westermann.kobserve.event.EventHandler
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.exposed.sql.*
+
+object WorkGroupRepository : Repository<WorkGroup> {
+
+    override val onCreate = EventHandler<Long>()
+    override val onUpdate = EventHandler<Long>()
+    override val onDelete = EventHandler<Long>()
+
+    private suspend fun rowToModel(row: ResultRow): WorkGroup {
+        val id = row[DbWorkGroup.id]
+        val name = row[DbWorkGroup.name]
+        val interested = row[DbWorkGroup.interested]
+        val trackId = row[DbWorkGroup.trackId]
+        val projector = row[DbWorkGroup.projector]
+        val resolution = row[DbWorkGroup.resolution]
+        val length = row[DbWorkGroup.length]
+        val language = row[DbWorkGroup.language]
+
+        val track = trackId?.let { TrackRepository.get(it) }
+
+        return WorkGroup(id, name, interested, track, projector, resolution, length, language)
+    }
+
+    override suspend fun get(id: Long): WorkGroup? {
+        return dbQuery {
+            val row = DbWorkGroup.select { DbWorkGroup.id eq id }.firstOrNull() ?: return@dbQuery null
+
+            runBlocking {
+                rowToModel(row)
+            }
+        }
+    }
+
+    override suspend fun create(model: WorkGroup): Long {
+        return dbQuery {
+            val id = DbWorkGroup.insert {
+                it[name] = model.name
+                it[interested] = model.interested
+                it[trackId] = model.track?.id
+                it[projector] = model.projector
+                it[resolution] = model.resolution
+                it[length] = model.length
+                it[language] = model.language
+            }[DbWorkGroup.id] ?: throw IllegalStateException("Cannot create model!")
+
+            onCreate.emit(id)
+
+            id
+        }
+    }
+
+    override suspend fun update(model: WorkGroup) {
+        if (model.id == null) throw IllegalStateException("Cannot update model which was not created!")
+        dbQuery {
+            DbWorkGroup.update({ DbWorkGroup.id eq model.id }) {
+                it[name] = model.name
+                it[interested] = model.interested
+                it[trackId] = model.track?.id
+                it[projector] = model.projector
+                it[resolution] = model.resolution
+                it[length] = model.length
+                it[language] = model.language
+            }
+
+            onUpdate.emit(model.id)
+        }
+    }
+
+    override suspend fun delete(id: Long) {
+        onDelete.emit(id)
+
+        dbQuery {
+            DbWorkGroup.deleteWhere { DbWorkGroup.id eq id }
+        }
+    }
+
+    override suspend fun all(): List<WorkGroup> {
+        return dbQuery {
+            val result = DbWorkGroup.selectAll()
+
+            result.map {
+                runBlocking {
+                    rowToModel(it)
+                }
+            }
+        }
+    }
+
+    suspend fun getByTrack(trackId: Long?): List<WorkGroup> {
+        return dbQuery {
+            val result = DbWorkGroup.select { DbWorkGroup.trackId eq trackId }
+
+            result.map {
+                runBlocking {
+                    rowToModel(it)
+                }
+            }
+        }
+    }
+
+    init {
+        TrackRepository.onUpdate { roomId ->
+            runBlocking {
+                getByTrack(roomId).forEach { workGroup ->
+                    if (workGroup.id != null) onUpdate.emit(workGroup.id)
+                }
+            }
+        }
+        TrackRepository.onDelete { roomId ->
+            runBlocking {
+                getByTrack(roomId).forEach { workGroup ->
+                    if (workGroup.id != null) {
+                        update(workGroup.copy(track = null))
+                    }
+                }
+            }
+        }
+    }
+
+    fun registerPushService() {
+        onCreate {
+            runBlocking {
+                PushService.notify(MessageType.CREATE, RepositoryType.WORK_GROUP, it)
+            }
+        }
+        onUpdate {
+            runBlocking {
+                PushService.notify(MessageType.UPDATE, RepositoryType.WORK_GROUP, it)
+            }
+        }
+        onDelete {
+            runBlocking {
+                PushService.notify(MessageType.DELETE, RepositoryType.WORK_GROUP, it)
+            }
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/route/Account.kt

@@ -1,26 +1,17 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationAccount
+import de.kif.backend.authenticateOrRedirect
-import de.kif.backend.LocationLogin
-import de.kif.backend.PortalSession
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import io.ktor.application.call
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.request.path
-import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
-import io.ktor.sessions.get
+import io.ktor.routing.get
-import io.ktor.sessions.sessions
 import kotlinx.html.*
 
 fun Route.account() {
-    get<LocationAccount> {
+    get("/account") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect { user ->
-        if (user == null) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -34,7 +25,7 @@ fun Route.account() {
                         +"You have the following rights: ${user.permissions}"
                         br {}
                         a("/logout") {
-                            button(classes="form-btn") {
+                            button(classes = "form-btn") {
                                 +"Logout"
                             }
                         }

src/jvmMain/kotlin/de/kif/backend/route/Calendar.kt

@@ -1,40 +1,38 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationCalendar
+import de.kif.backend.authenticateOrRedirect
-import de.kif.backend.LocationLogin
+import de.kif.backend.isAuthenticated
-import de.kif.backend.PortalSession
+import de.kif.backend.repository.RoomRepository
-import de.kif.backend.model.Permission
+import de.kif.backend.repository.ScheduleRepository
-import de.kif.backend.model.Room
+import de.kif.backend.repository.WorkGroupRepository
-import de.kif.backend.model.Schedule
-import de.kif.backend.model.WorkGroup
 import de.kif.backend.util.Search
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import de.kif.backend.view.TableTemplate
+import de.kif.common.CALENDAR_GRID_WIDTH
+import de.kif.common.model.Permission
+import de.kif.common.model.Room
+import de.kif.common.model.Schedule
 import io.ktor.application.call
 import io.ktor.html.insert
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.request.path
 import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
 import io.ktor.routing.get
-import io.ktor.sessions.get
-import io.ktor.sessions.sessions
-import kif.common.model.CALENDAR_GRID_WIDTH
-import kif.common.model.MessageCreateCalendarEntry
-import kif.common.model.MessageDeleteCalendarEntry
 import kotlinx.css.CSSBuilder
 import kotlinx.css.Color
 import kotlinx.css.pct
 import kotlinx.css.rem
 import kotlinx.html.*
+import kotlin.collections.component1
+import kotlin.collections.component2
+import kotlin.collections.set
 import kotlin.math.max
 import kotlin.math.min
 
 const val MINUTES_OF_DAY = 24 * 60
 
-private fun DIV.calendarCell(schedule: Schedule?, day: Int, time: Int) {
+private fun DIV.calendarCell(schedule: Schedule?) {
     if (schedule != null) {
         span("calendar-entry") {
             attributes["style"] = CSSBuilder().apply {
@@ -50,42 +48,38 @@ private fun DIV.calendarCell(schedule: Schedule?, day: Int, time: Int) {
                 val c = schedule.workGroup.track?.color
                 if (c != null) {
                     backgroundColor = Color(c.toString())
-                    color = Color(c.textColor.toString())
+                    color = Color(c.calcTextColor().toString())
                 }
             }.toString()
             attributes["data-language"] = schedule.workGroup.language.code
-            attributes["data-day"] = schedule.day.toString()
+            attributes["data-id"] = schedule.id.toString()
-            attributes["data-room"] = schedule.room.id.toString()
-            attributes["data-time"] = schedule.time.toString()
-            attributes["data-cell-time"] = time.toString()
-            attributes["data-workgroup"] = schedule.workGroup.id.toString()
 
             +schedule.workGroup.name
 
             div("calendar-tools") {
                 a(
                     classes = "calendar-tools-m10",
-                    href = "/calendar/$day/${schedule.room.id}/${schedule.time}/-1?next=/calendar/$day/${schedule.room.id}/${schedule.time - 10}/${schedule.workGroupId}"
+                    href = "/calendar/${schedule.day}/${schedule.id}/delete?redirect=/calendar/${schedule.day}/${schedule.room.id}/${schedule.time - 10}/${schedule.workGroup.id}"
                 ) { +"-10" }
                 a(
                     classes = "calendar-tools-m5",
-                    href = "/calendar/$day/${schedule.room.id}/${schedule.time}/-1?next=/calendar/$day/${schedule.room.id}/${schedule.time - 5}/${schedule.workGroupId}"
+                    href = "/calendar/${schedule.day}/${schedule.id}/delete?redirect=/calendar/${schedule.day}/${schedule.room.id}/${schedule.time - 5}/${schedule.workGroup.id}"
                 ) { +"-05" }
                 a(
                     classes = "calendar-tools-reset",
-                    href = "/calendar/$day/${schedule.room.id}/${schedule.time}/-1?next=/calendar/$day/${schedule.room.id}/$time/${schedule.workGroupId}"
+                    href = "/calendar/${schedule.day}/${schedule.id}/delete?redirect=/calendar/${schedule.day}/${schedule.room.id}/${schedule.time / CALENDAR_GRID_WIDTH * CALENDAR_GRID_WIDTH}/${schedule.workGroup.id}"
                 ) { +"reset" }
                 a(
                     classes = "calendar-tools-p5",
-                    href = "/calendar/$day/${schedule.room.id}/${schedule.time}/-1?next=/calendar/$day/${schedule.room.id}/${schedule.time + 5}/${schedule.workGroupId}"
+                    href = "/calendar/${schedule.day}/${schedule.id}/delete?redirect=/calendar/${schedule.day}/${schedule.room.id}/${schedule.time + 5}/${schedule.workGroup.id}"
                 ) { +"+05" }
                 a(
                     classes = "calendar-tools-p10",
-                    href = "/calendar/$day/${schedule.room.id}/${schedule.time}/-1?next=/calendar/$day/${schedule.room.id}/${schedule.time + 10}/${schedule.workGroupId}"
+                    href = "/calendar/${schedule.day}/${schedule.id}/delete?redirect=/calendar/${schedule.day}/${schedule.room.id}/${schedule.time + 10}/${schedule.workGroup.id}"
                 ) { +"+10" }
                 a(
                     classes = "calendar-tools-del",
-                    href = "/calendar/$day/${schedule.room.id}/${schedule.time}/-1"
+                    href = "/calendar/${schedule.day}/${schedule.id}/delete"
                 ) { +"del" }
             }
         }
@@ -148,7 +142,7 @@ private fun DIV.renderTimeToRoom(
 
                         val schedule = (start..end).mapNotNull { schedules[room]?.get(it) }.firstOrNull()
 
-                        calendarCell(schedule, day, time)
+                        calendarCell(schedule)
 
                         val href = if (allowEdit) "/calendar/$day/${room.id}/$start" else null
                         a(href, classes = "calendar-link")
@@ -216,7 +210,7 @@ private fun DIV.renderRoomToTime(
 
                         val schedule = (start..end).mapNotNull { schedules[room]?.get(it) }.firstOrNull()
 
-                        calendarCell(schedule, day, time)
+                        calendarCell(schedule)
 
                         val href = if (allowEdit) "/calendar/$day/${room.id}/$start" else null
                         a(href, classes = "calendar-link")
@@ -233,37 +227,40 @@ fun Route.calendar() {
         call.respondRedirect("/calendar/0", true)
     }
 
-    get<LocationCalendar.LocationCalendarRoomToTime> { param ->
+    get("/calendar/{day}/rtt") {
         call.response.cookies.append(
             "orientation",
             CalendarOrientation.ROOM_TO_TIME.name,
             maxAge = Int.MAX_VALUE,
             path = "/"
         )
-        call.respondRedirect("/calendar/${param.day}")
+        val day = call.parameters["day"]?.toIntOrNull() ?: 0
+        call.respondRedirect("/calendar/$day")
     }
 
-    get<LocationCalendar.LocationCalendarTimeToRoom> { param ->
+    get("/calendar/{day}/ttr") {
         call.response.cookies.append(
             "orientation",
             CalendarOrientation.TIME_TO_ROOM.name,
             maxAge = Int.MAX_VALUE,
             path = "/"
         )
-        call.respondRedirect("/calendar/${param.day}")
+        val day = call.parameters["day"]?.toIntOrNull() ?: 0
+        call.respondRedirect("/calendar/$day")
     }
 
-    get<LocationCalendar> { param ->
+    get("/calendar/{day}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        val user = isAuthenticated(Permission.SCHEDULE)
-        val allowEdit = user?.checkPermission(Permission.SCHEDULE) ?: false
+
-        val rooms = Room.list()
+        val day = call.parameters["day"]?.toIntOrNull() ?: return@get
+
+        val rooms = RoomRepository.all()
 
         val orientation = call.request.cookies["orientation"]?.let { name ->
             CalendarOrientation.values().find { it.name == name }
         } ?: CalendarOrientation.ROOM_TO_TIME
 
-        val day = param.day
+        val h = ScheduleRepository.getByDay(day)
-        val h = Schedule.getByDay(day)
         val schedules = h.groupBy { it.room }.mapValues { (_, it) ->
             it.associateBy {
                 it.time
@@ -327,7 +324,7 @@ fun Route.calendar() {
                                 max,
                                 rooms,
                                 schedules,
-                                allowEdit
+                                user != null
                             )
                             CalendarOrientation.TIME_TO_ROOM -> renderTimeToRoom(
                                 day,
@@ -335,7 +332,7 @@ fun Route.calendar() {
                                 max,
                                 rooms,
                                 schedules,
-                                allowEdit
+                                user != null
                             )
                         }
                     }
@@ -345,15 +342,15 @@ fun Route.calendar() {
         }
     }
 
-    get<LocationCalendar.LocationCalendarEdit> { param ->
+    get("/calendar/{day}/{room}/{time}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.SCHEDULE) { user ->
-        if (user == null || !user.checkPermission(Permission.SCHEDULE)) {
+            val day = call.parameters["day"]?.toIntOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val time = call.parameters["time"]?.toIntOrNull() ?: return@get
-        } else {
+            val roomId = call.parameters["room"]?.toLongOrNull() ?: return@get
-            val list = WorkGroup.list()
+            val search = call.parameters["search"] ?: ""
-            val room = Room.get(param.room)
+
-            val day = param.day
+            val list = WorkGroupRepository.all()
-            val time = param.time
+            val room = RoomRepository.get(roomId) ?: return@get
 
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
@@ -363,12 +360,12 @@ fun Route.calendar() {
                 content {
                     h1 { +"Select work groups" }
                     insert(TableTemplate()) {
-                        searchValue = param.search
+                        searchValue = search
 
                         action {
-                            a("/calendar/$day/${room.id}/$time/-1") {
+                            a("/calendar/$day") {
                                 button(classes = "form-btn btn-primary") {
-                                    +"Delete"
+                                    +"Cancel"
                                 }
                             }
                         }
@@ -395,7 +392,7 @@ fun Route.calendar() {
                         }
 
                         for (u in list) {
-                            if (Search.match(param.search, u.name)) {
+                            if (Search.match(search, u.name)) {
                                 val href = "/calendar/$day/${room.id}/$time/${u.id}"
                                 entry {
                                     attributes["data-search"] = Search.pack(u.name)
@@ -427,46 +424,33 @@ fun Route.calendar() {
             }
         }
     }
+    get("/calendar/{day}/{room}/{time}/{workgroup}") {
+        authenticateOrRedirect(Permission.SCHEDULE) { user ->
+            val day = call.parameters["day"]?.toIntOrNull() ?: return@get
+            val time = call.parameters["time"]?.toIntOrNull() ?: return@get
+            val roomId = call.parameters["room"]?.toLongOrNull() ?: return@get
+            val workGroupId = call.parameters["workgroup"]?.toLongOrNull() ?: return@get
 
-    get<LocationCalendar.LocationCalendarSet> { param ->
+            val room = RoomRepository.get(roomId) ?: return@get
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+            val workGroup = WorkGroupRepository.get(workGroupId) ?: return@get
-        if (user == null || !user.checkPermission(Permission.SCHEDULE)) {
+
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val schedule = Schedule(null, workGroup, room, day, time)
-        } else {
+            ScheduleRepository.create(schedule)
-            for (it in Schedule.getByRoom(param.room, param.day, param.time)) {
+
-                PushService.notify(
+            val redirect = call.parameters["redirect"]
-                    MessageDeleteCalendarEntry(
+            call.respondRedirect(redirect ?: "/calendar/$day")
-                        it.day,
-                        it.time,
-                        it.room.id,
-                        it.workGroup.id
-                    )
-                )
-                it.delete()
         }
-            if (param.workGroup >= 0) {
-                val schedule = Schedule(param.workGroup, param.day, param.time, param.room)
-                schedule.save()
-                schedule.loadConstraints()
-
-                val cellTime = (schedule.time / 15)  * 15
-
-                PushService.notify(
-                    MessageCreateCalendarEntry(
-                        schedule.day,
-                        schedule.time,
-                        cellTime,
-                        schedule.room.id,
-                        schedule.workGroup.id,
-                        schedule.workGroup.name,
-                        schedule.workGroup.length,
-                        schedule.workGroup.language.code,
-                        schedule.workGroup.track?.color
-                    )
-                )
     }
 
-            call.respondRedirect(param.next ?: "/calendar/${param.day}")
+    get("/calendar/{day}/{schedule}/delete") {
+        authenticateOrRedirect(Permission.SCHEDULE) { user ->
+            val day = call.parameters["day"]?.toIntOrNull() ?: return@get
+            val scheduleId = call.parameters["schedule"]?.toLongOrNull() ?: return@get
+
+            ScheduleRepository.delete(scheduleId)
+
+            val redirect = call.parameters["redirect"]
+            call.respondRedirect(redirect ?: "/calendar/$day")
         }
     }
 }

src/jvmMain/kotlin/de/kif/backend/route/Dashboard.kt

@@ -1,19 +1,18 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationDashboard
 import de.kif.backend.PortalSession
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import io.ktor.application.call
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
 import io.ktor.routing.Route
+import io.ktor.routing.get
 import io.ktor.sessions.get
 import io.ktor.sessions.sessions
 import kotlinx.html.h1
 
 fun Route.dashboard() {
-    get<LocationDashboard> {
+    get("") {
         val user = call.sessions.get<PortalSession>()?.getUser(call)
         call.respondHtmlTemplate(MainTemplate()) {
             menuTemplate {

src/jvmMain/kotlin/de/kif/backend/route/Login.kt

@@ -1,19 +1,17 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationLogin
-import de.kif.backend.LocationLogout
 import de.kif.backend.PortalSession
-import de.kif.backend.model.User
+import de.kif.backend.UserPrinciple
 import de.kif.backend.view.MainTemplate
 import io.ktor.application.call
 import io.ktor.auth.authenticate
 import io.ktor.auth.principal
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.location
 import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
 import io.ktor.routing.get
 import io.ktor.routing.post
+import io.ktor.routing.route
 import io.ktor.sessions.clear
 import io.ktor.sessions.get
 import io.ktor.sessions.sessions
@@ -21,12 +19,13 @@ import io.ktor.sessions.set
 import kotlinx.html.*
 
 fun Route.login() {
-    location<LocationLogin> {
+    route("login") {
         authenticate {
             post {
-                val principal = call.principal<User>() ?: return@post
+                val principal = call.principal<UserPrinciple>() ?: return@post
-                call.sessions.set(PortalSession(principal.id, principal.username))
+                if (principal.user.id == null) return@post
-                call.respondRedirect(call.parameters[LocationLogin::next.name] ?: "/")
+                call.sessions.set(PortalSession(principal.user.id))
+                call.respondRedirect(call.parameters["redirect"] ?: "/")
             }
         }
 
@@ -41,43 +40,43 @@ fun Route.login() {
                                 form("/login", method = FormMethod.post) {
                                     div("form-group") {
                                         label {
-                                            htmlFor = LocationLogin::username.name
+                                            htmlFor = "username"
                                             +"Username"
                                         }
                                         input(
-                                            name = LocationLogin::username.name,
+                                            name = "username",
                                             classes = "form-control"
                                         ) {
-                                            id = LocationLogin::username.name
+                                            id = "username"
                                             placeholder = "Username"
                                         }
                                     }
                                     div("form-group") {
                                         label {
-                                            htmlFor = LocationLogin::password.name
+                                            htmlFor = "password"
                                             +"Password"
                                         }
                                         input(
-                                            name = LocationLogin::password.name,
+                                            name = "password",
                                             classes = "form-control",
                                             type = InputType.password
                                         ) {
-                                            id = LocationLogin::password.name
+                                            id = "password"
                                             placeholder = "Password"
                                         }
                                     }
                                     input(
-                                        name = LocationLogin::next.name,
+                                        name = "redirect",
                                         type = InputType.hidden
                                     ) {
-                                        value = call.parameters[LocationLogin::next.name] ?: "/"
+                                        value = call.parameters["redirect"] ?: "/"
                                     }
                                     button(type = ButtonType.submit, classes = "form-btn btn-primary") {
                                         +"Login"
                                     }
                                 }
 
-                                if ("error" in call.parameters) {
+                                if ("onFailure" in call.parameters) {
                                     br { }
                                     div("alert alert-danger") {
                                         +"Username or password incorrect!"
@@ -88,15 +87,13 @@ fun Route.login() {
                     }
                 }
             } else {
-                call.respondRedirect(call.parameters[LocationLogin::next.name] ?: "/")
+                call.respondRedirect(call.parameters["redirect"] ?: "/")
             }
         }
     }
 
-    location<LocationLogout> {
+    get("logout") {
-        get {
         call.sessions.clear<PortalSession>()
         call.respondRedirect("/")
     }
-    }
 }

src/jvmMain/kotlin/de/kif/backend/route/Person.kt

@@ -1,258 +0,0 @@
-package de.kif.backend.route
-
-import de.kif.backend.LocationLogin
-import de.kif.backend.LocationPerson
-import de.kif.backend.PortalSession
-import de.kif.backend.model.Permission
-import de.kif.backend.model.Person
-import de.kif.backend.util.Search
-import de.kif.backend.view.MainTemplate
-import de.kif.backend.view.MenuTemplate
-import de.kif.backend.view.TableTemplate
-import io.ktor.application.call
-import io.ktor.html.insert
-import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.locations.post
-import io.ktor.request.path
-import io.ktor.request.receiveParameters
-import io.ktor.response.respondRedirect
-import io.ktor.routing.Route
-import io.ktor.sessions.get
-import io.ktor.sessions.sessions
-import io.ktor.util.toMap
-import kotlinx.html.*
-
-fun Route.person() {
-    get<LocationPerson> { param ->
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
-        if (user == null || !user.checkPermission(Permission.PERSON)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val list = Person.list()
-            call.respondHtmlTemplate(MainTemplate()) {
-                menuTemplate {
-                    this.user = user
-                    active = MenuTemplate.Tab.PERSON
-                }
-                content {
-                    h1 { +"Persons" }
-                    insert(TableTemplate()) {
-                        searchValue = param.search
-
-                        action {
-                            a("/person/new") {
-                                button(classes="form-btn btn-primary") {
-                                    +"Add person"
-                                }
-                            }
-                        }
-
-                        header {
-                            th {
-                                +"First name"
-                            }
-                            th {
-                                +"Last name"
-                            }
-                            th(classes = "action") {
-                                +"Action"
-                            }
-                        }
-
-                        for (u in list) {
-                            if (Search.match(param.search, u.firstName, u.lastName)) {
-                                entry {
-                                    attributes["data-search"] = Search.pack(u.firstName, u.lastName)
-                                    td {
-                                        +u.firstName
-                                    }
-                                    td {
-                                        +u.lastName
-                                    }
-                                    td(classes = "action") {
-                                        a("/person/${u.id}") {
-                                            i("material-icons") { +"edit" }
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    get<LocationPerson.Edit> { personId ->
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
-        if (user == null || !user.checkPermission(Permission.PERSON)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val editPerson = Person.get(personId.id) ?: return@get
-            call.respondHtmlTemplate(MainTemplate()) {
-                menuTemplate {
-                    this.user = user
-                    active = MenuTemplate.Tab.PERSON
-                }
-                content {
-                    h1 { +"Edit person" }
-                    form(method = FormMethod.post) {
-                        div("form-group") {
-                            label {
-                                htmlFor = "first-name"
-                                +"First name"
-                            }
-                            input(
-                                name = "first-name",
-                                classes = "form-control"
-                            ) {
-                                id = "first-name"
-                                placeholder = "First name"
-                                value = editPerson.firstName
-                            }
-                        }
-                        div("form-group") {
-                            label {
-                                htmlFor = "last-name"
-                                +"Last name"
-                            }
-                            input(
-                                name = "last-name",
-                                classes = "form-control"
-                            ) {
-                                id = "last-name"
-                                placeholder = "Last name"
-                                value = editPerson.lastName
-                            }
-                        }
-
-                        div("form-group") {
-                            a("/person") {
-                                button(classes = "form-btn") {
-                                    +"Cancel"
-                                }
-                            }
-                            button(type = ButtonType.submit, classes = "form-btn btn-primary") {
-                                +"Save"
-                            }
-                        }
-                    }
-                    a("/person/${editPerson.id}/delete") {
-                        button(classes = "form-btn btn-danger") {
-                            +"Delete"
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    post<LocationPerson.Edit> { personId ->
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
-        if (user == null || !user.checkPermission(Permission.PERSON)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val params = call.receiveParameters().toMap().mapValues { (_, list) ->
-                list.firstOrNull()
-            }
-            val editPerson = Person.get(personId.id) ?: return@post
-
-            params["first-name"]?.let { editPerson.firstName = it }
-            params["last-name"]?.let { editPerson.lastName = it }
-
-            editPerson.save()
-
-            call.respondRedirect("/person")
-        }
-    }
-
-    get<LocationPerson.New> {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
-        if (user == null || !user.checkPermission(Permission.PERSON)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            call.respondHtmlTemplate(MainTemplate()) {
-                menuTemplate {
-                    this.user = user
-                    active = MenuTemplate.Tab.PERSON
-                }
-                content {
-                    h1 { +"Create person" }
-                    form(method = FormMethod.post) {
-                        div("form-group") {
-                            label {
-                                htmlFor = "first-name"
-                                +"First name"
-                            }
-                            input(
-                                name = "first-name",
-                                classes = "form-control"
-                            ) {
-                                id = "first-name"
-                                placeholder = "First name"
-                                value = ""
-                            }
-                        }
-                        div("form-group") {
-                            label {
-                                htmlFor = "last-name"
-                                +"Last name"
-                            }
-                            input(
-                                name = "last-name",
-                                classes = "form-control"
-                            ) {
-                                id = "last-name"
-                                placeholder = "Last name"
-                                value = ""
-                            }
-                        }
-
-                        div("form-group") {
-                            a("/person") {
-                                button(classes = "form-btn") {
-                                    +"Cancel"
-                                }
-                            }
-                            button(type = ButtonType.submit, classes = "form-btn btn-primary") {
-                                +"Create"
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    post<LocationPerson.New> {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
-        if (user == null || !user.checkPermission(Permission.PERSON)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val params = call.receiveParameters().toMap().mapValues { (_, list) ->
-                list.firstOrNull()
-            }
-
-            val firstName = params["first-name"] ?: return@post
-            val lastName = params["last-name"] ?: return@post
-
-            Person(firstName = firstName, lastName = lastName).save()
-
-            call.respondRedirect("/person")
-        }
-    }
-
-    get<LocationPerson.Delete> { personId ->
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
-        if (user == null || !user.checkPermission(Permission.PERSON)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val deletePerson = Person.get(personId.id) ?: return@get
-
-            deletePerson.delete()
-
-            call.respondRedirect("/person")
-        }
-    }
-}

src/jvmMain/kotlin/de/kif/backend/route/Room.kt

@@ -1,35 +1,35 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationLogin
+import de.kif.backend.authenticateOrRedirect
-import de.kif.backend.LocationRoom
+import de.kif.backend.repository.RoomRepository
-import de.kif.backend.PortalSession
-import de.kif.backend.model.Permission
-import de.kif.backend.model.Room
 import de.kif.backend.util.Search
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import de.kif.backend.view.TableTemplate
+import de.kif.common.model.Permission
+import de.kif.common.model.Room
 import io.ktor.application.call
 import io.ktor.html.insert
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.locations.post
-import io.ktor.request.path
 import io.ktor.request.receiveParameters
 import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
-import io.ktor.sessions.get
+import io.ktor.routing.get
-import io.ktor.sessions.sessions
+import io.ktor.routing.post
 import io.ktor.util.toMap
 import kotlinx.html.*
+import kotlin.collections.component1
+import kotlin.collections.component2
+import kotlin.collections.firstOrNull
+import kotlin.collections.mapValues
+import kotlin.collections.set
 
 fun Route.room() {
-    get<LocationRoom> { param ->
+
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+    get("/rooms") {
-        if (user == null || !user.checkPermission(Permission.ROOM)) {
+        authenticateOrRedirect(Permission.ROOM) { user ->
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val search = call.parameters["search"] ?: ""
-        } else {
+            val list = RoomRepository.all()
-            val list = Room.list()
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -38,11 +38,11 @@ fun Route.room() {
                 content {
                     h1 { +"Rooms" }
                     insert(TableTemplate()) {
-                        searchValue = param.search
+                        searchValue = search
 
                         action {
                             a("/room/new") {
-                                button(classes="form-btn btn-primary") {
+                                button(classes = "form-btn btn-primary") {
                                     +"Add room"
                                 }
                             }
@@ -64,7 +64,7 @@ fun Route.room() {
                         }
 
                         for (u in list) {
-                            if (Search.match(param.search, u.name)) {
+                            if (Search.match(search, u.name)) {
                                 entry {
                                     attributes["data-search"] = Search.pack(u.name)
                                     td {
@@ -90,12 +90,10 @@ fun Route.room() {
         }
     }
 
-    get<LocationRoom.Edit> { roomId ->
+    get("/room/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.ROOM) { user ->
-        if (user == null || !user.checkPermission(Permission.ROOM)) {
+            val roomId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val editRoom = RoomRepository.get(roomId) ?: return@get
-        } else {
-            val editRoom = Room.get(roomId.id)
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -175,31 +173,26 @@ fun Route.room() {
         }
     }
 
-    post<LocationRoom.Edit> { roomId ->
+    post("/room/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.ROOM) { user ->
-        if (user == null || !user.checkPermission(Permission.ROOM)) {
+            val roomId = call.parameters["id"]?.toLongOrNull() ?: return@post
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
-            val editRoom = Room.get(roomId.id)
+            var room = RoomRepository.get(roomId) ?: return@post
 
-            params["name"]?.let { editRoom.name = it }
+            params["name"]?.let { room = room.copy(name = it) }
-            params["places"]?.let { editRoom.places = it.toIntOrNull() ?: 0 }
+            params["places"]?.let { room = room.copy(places = it.toIntOrNull() ?: 0) }
-            params["projector"]?.let { editRoom.projector = it == "on" }
+            params["projector"]?.let { room = room.copy(projector = it == "on") }
 
-            editRoom.save()
+            RoomRepository.update(room)
 
-            call.respondRedirect("/room")
+            call.respondRedirect("/rooms")
         }
     }
 
-    get<LocationRoom.New> {
+    get("/room/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.ROOM) { user ->
-        if (user == null || !user.checkPermission(Permission.ROOM)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -274,11 +267,8 @@ fun Route.room() {
         }
     }
 
-    post<LocationRoom.New> {
+    post("/room/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.ROOM) { user ->
-        if (user == null || !user.checkPermission(Permission.ROOM)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
@@ -287,22 +277,21 @@ fun Route.room() {
             val places = (params["places"] ?: return@post).toIntOrNull() ?: 0
             val projector = params["projector"] == "on"
 
-            Room(name = name, places = places, projector = projector).save()
+            val room = Room(null, name, places, projector)
 
-            call.respondRedirect("/room")
+            RoomRepository.create(room)
+
+            call.respondRedirect("/rooms")
         }
     }
 
-    get<LocationRoom.Delete> { roomId ->
+    get("/room/{id}/delete") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.ROOM) { user ->
-        if (user == null || !user.checkPermission(Permission.ROOM)) {
+            val roomId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val deleteRoom = Room.get(roomId.id)
 
-            deleteRoom.delete()
+            RoomRepository.delete(roomId)
 
-            call.respondRedirect("/room")
+            call.respondRedirect("/rooms")
         }
     }
 }

src/jvmMain/kotlin/de/kif/backend/route/Setup.kt

@@ -1,101 +0,0 @@
-package de.kif.backend.route
-
-import de.kif.backend.LocationLogin
-import de.kif.backend.database.DbUser
-import de.kif.backend.model.Permission
-import de.kif.backend.model.User
-import de.kif.backend.view.MainTemplate
-import io.ktor.application.call
-import io.ktor.html.respondHtmlTemplate
-import io.ktor.request.receiveParameters
-import io.ktor.response.respondRedirect
-import io.ktor.routing.Route
-import io.ktor.routing.get
-import io.ktor.routing.post
-import io.ktor.routing.route
-import kotlinx.html.*
-import org.jetbrains.exposed.sql.selectAll
-import org.jetbrains.exposed.sql.transactions.transaction
-
-fun Route.setup() {
-    route("/") {
-        get {
-            call.respondHtmlTemplate(MainTemplate()) {
-                transaction {
-                    val firstStart = DbUser.selectAll().count() == 0
-
-                    menuTemplate {
-                        setup = true
-                    }
-
-                    if (firstStart) {
-                        content {
-                            div {
-                                h1 { +"Create account" }
-                                form("/", method = FormMethod.post) {
-                                    div("form-group") {
-                                        label {
-                                            htmlFor = LocationLogin::username.name
-                                            +"Username"
-                                        }
-                                        input(
-                                            name = LocationLogin::username.name,
-                                            classes = "form-control"
-                                        ) {
-                                            id = LocationLogin::username.name
-                                            placeholder = "Username"
-                                        }
-                                    }
-                                    div("form-group") {
-                                        label {
-                                            htmlFor = LocationLogin::password.name
-                                            +"Password"
-                                        }
-                                        input(
-                                            name = LocationLogin::password.name,
-                                            classes = "form-control",
-                                            type = InputType.password
-                                        ) {
-                                            id = LocationLogin::password.name
-                                            placeholder = "Password"
-                                        }
-                                    }
-                                    button(type = ButtonType.submit, classes = "btn btn-primary") {
-                                        +"Create"
-                                    }
-                                }
-                            }
-                        }
-                    } else {
-                        content {
-                            div {
-                                h1 { +"Setup complete" }
-                                p {
-                                    +"Please restart the server!"
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-
-        post {
-            val parameters = call.receiveParameters()
-            val username = parameters[LocationLogin::username.name]
-            val password = parameters[LocationLogin::password.name]
-
-            if (username == null || password == null) {
-                call.respondRedirect("/")
-                return@post
-            }
-
-            User.create(username, password, Permission.values().toSet())
-            call.respondRedirect("/")
-        }
-    }
-
-    get("*") {
-        call.respondRedirect("/")
-    }
-}

src/jvmMain/kotlin/de/kif/backend/route/Track.kt

@@ -1,29 +1,27 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationLogin
+
-import de.kif.backend.LocationTrack
+import de.kif.backend.authenticateOrRedirect
-import de.kif.backend.PortalSession
+import de.kif.backend.repository.TrackRepository
-import de.kif.backend.model.Permission
-import de.kif.backend.model.Track
 import de.kif.backend.util.Search
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import de.kif.backend.view.TableTemplate
+import de.kif.common.model.Color
+import de.kif.common.model.Permission
+import de.kif.common.model.Track
 import io.ktor.application.call
 import io.ktor.html.insert
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.locations.post
-import io.ktor.request.path
 import io.ktor.request.receiveParameters
 import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
-import io.ktor.sessions.get
+import io.ktor.routing.get
-import io.ktor.sessions.sessions
+import io.ktor.routing.post
 import io.ktor.util.toMap
-import kif.common.model.Color
 import kotlinx.css.CSSBuilder
 import kotlinx.html.*
+import kotlin.collections.set
 import kotlin.random.Random
 
 fun DIV.colorPicker(color: Color?) {
@@ -85,12 +83,10 @@ fun DIV.colorPicker(color: Color?) {
 }
 
 fun Route.track() {
-    get<LocationTrack> { param ->
+    get("/tracks") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val search = call.parameters["search"] ?: ""
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val list = TrackRepository.all()
-        } else {
-            val list = Track.list()
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -99,7 +95,7 @@ fun Route.track() {
                 content {
                     h1 { +"Tracks" }
                     insert(TableTemplate()) {
-                        searchValue = param.search
+                        searchValue = search
 
                         action {
                             a("/track/new") {
@@ -122,7 +118,7 @@ fun Route.track() {
                         }
 
                         for (u in list) {
-                            if (Search.match(param.search, u.name)) {
+                            if (Search.match(search, u.name)) {
                                 entry {
                                     attributes["data-search"] = Search.pack(u.name)
                                     td {
@@ -145,12 +141,10 @@ fun Route.track() {
         }
     }
 
-    get<LocationTrack.Edit> { trackId ->
+    get("/track/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val trackId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val editTrack = TrackRepository.get(trackId) ?: return@get
-        } else {
-            val editTrack = Track.get(trackId.id)
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -198,33 +192,28 @@ fun Route.track() {
         }
     }
 
-    post<LocationTrack.Edit> { trackId ->
+    post("/track/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val trackId = call.parameters["id"]?.toLongOrNull() ?: return@post
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
-            val editTrack = Track.get(trackId.id)
+            var editTrack = TrackRepository.get(trackId) ?: return@post
 
-            params["name"]?.let { editTrack.name = it }
+            params["name"]?.let { editTrack = editTrack.copy(name = it) }
 
-            editTrack.color = (params["color"] ?: return@post).let { c ->
+            editTrack = editTrack.copy(color = (params["color"] ?: return@post).let { c ->
                 Color.default.find { it.first == c }
-            }?.second ?: (params["color-input"] ?: return@post).let(Color.Companion::parse)
+            }?.second ?: (params["color-input"] ?: return@post).let(Color.Companion::parse))
 
-            editTrack.save()
+            TrackRepository.update(editTrack)
 
-            call.respondRedirect("/track")
+            call.respondRedirect("/tracks")
         }
     }
 
-    get<LocationTrack.New> {
+    get("/track/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -266,11 +255,8 @@ fun Route.track() {
         }
     }
 
-    post<LocationTrack.New> {
+    post("/track/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
@@ -280,25 +266,21 @@ fun Route.track() {
                 Color.default.find { it.first == c }
             }?.second ?: (params["color-input"] ?: return@post).let(Color.Companion::parse)
 
-            Track(
+            val track = Track(null, name, color)
-                name = name,
-                color = color
-            ).save()
 
-            call.respondRedirect("/track")
+            TrackRepository.create(track)
+
+            call.respondRedirect("/tracks")
         }
     }
 
-    get<LocationTrack.Delete> { trackId ->
+    get("track/{id}/delete") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val trackId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val deleteTrack = Track.get(trackId.id)
 
-            deleteTrack.delete()
+            TrackRepository.delete(trackId)
 
-            call.respondRedirect("/track")
+            call.respondRedirect("/tracks")
         }
     }
 }

src/jvmMain/kotlin/de/kif/backend/route/User.kt

@@ -1,35 +1,40 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationLogin
+
-import de.kif.backend.LocationUser
+import de.kif.backend.authenticateOrRedirect
-import de.kif.backend.PortalSession
+import de.kif.backend.hashPassword
-import de.kif.backend.model.Permission
+import de.kif.backend.repository.UserRepository
-import de.kif.backend.model.User
 import de.kif.backend.util.Search
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import de.kif.backend.view.TableTemplate
+import de.kif.common.model.Permission
+import de.kif.common.model.User
 import io.ktor.application.call
 import io.ktor.html.insert
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.locations.post
-import io.ktor.request.path
 import io.ktor.request.receiveParameters
 import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
-import io.ktor.sessions.get
+import io.ktor.routing.get
-import io.ktor.sessions.sessions
+import io.ktor.routing.post
 import io.ktor.util.toMap
 import kotlinx.html.*
+import kotlin.collections.component1
+import kotlin.collections.component2
+import kotlin.collections.filter
+import kotlin.collections.firstOrNull
+import kotlin.collections.joinToString
+import kotlin.collections.mapNotNull
+import kotlin.collections.mapValues
+import kotlin.collections.set
+import kotlin.collections.toSet
 
 fun Route.user() {
-    get<LocationUser> { param ->
+    get("/users") { param ->
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.USER) { user ->
-        if (user == null || !user.checkPermission(Permission.USER)) {
+            val search = call.parameters["search"] ?: ""
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val list = UserRepository.all()
-        } else {
-            val list = User.list()
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -38,11 +43,11 @@ fun Route.user() {
                 content {
                     h1 { +"Users" }
                     insert(TableTemplate()) {
-                        searchValue = param.search
+                        searchValue = search
 
                         action {
                             a("/user/new") {
-                                button(classes="form-btn btn-primary") {
+                                button(classes = "form-btn btn-primary") {
                                     +"Add user"
                                 }
                             }
@@ -61,7 +66,7 @@ fun Route.user() {
                         }
 
                         for (u in list) {
-                            if (Search.match(param.search, u.username)) {
+                            if (Search.match(search, u.username)) {
                                 entry {
                                     attributes["data-search"] = Search.pack(u.username)
                                     td {
@@ -84,12 +89,10 @@ fun Route.user() {
         }
     }
 
-    get<LocationUser.Edit> { userId ->
+    get("/user/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.USER) { user ->
-        if (user == null || !user.checkPermission(Permission.USER)) {
+            val userId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val editUser = UserRepository.get(userId) ?: return@get
-        } else {
-            val editUser = User.get(userId.id) ?: return@get
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -158,39 +161,31 @@ fun Route.user() {
         }
     }
 
-    post<LocationUser.Edit> { userId ->
+    post("/user/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.USER) { user ->
-        if (user == null || !user.checkPermission(Permission.USER)) {
+            val userId = call.parameters["id"]?.toLongOrNull() ?: return@post
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
-            val editUser = User.get(userId.id) ?: return@post
 
-            params["username"]?.let { editUser.username = it }
+            var editUser = UserRepository.get(userId) ?: return@post
 
-            for (permission in Permission.values()) {
+            params["username"]?.let { editUser = editUser.copy(username = it) }
+
+            val permissions = Permission.values().filter { permission ->
                 val name = permission.toString().toLowerCase()
-                if (user.checkPermission(permission)) {
+                user.checkPermission(permission) && params["permission-$name"] == "on"
-                    if (params["permission-$name"] == "on") {
+            }.toSet()
-                        editUser.permissions += permission
+            editUser = editUser.copy(permissions = permissions)
-                    } else {
-                        editUser.permissions -= permission
-                    }
-                }
-            }
-            editUser.save()
 
-            call.respondRedirect("/user")
+            UserRepository.update(user)
+
+            call.respondRedirect("/users")
         }
     }
 
-    get<LocationUser.New> {
+    get("/user/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.USER) { user ->
-        if (user == null || !user.checkPermission(Permission.USER)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -269,11 +264,8 @@ fun Route.user() {
         }
     }
 
-    post<LocationUser.New> {
+    post("/user/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.USER) { user ->
-        if (user == null || !user.checkPermission(Permission.USER)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
@@ -288,26 +280,26 @@ fun Route.user() {
                     null
             }.toSet()
 
-            User.create(username, password, permissions)
+            val newUser = User(null, username, hashPassword(password), permissions)
 
-            call.respondRedirect("/user")
+            UserRepository.create(newUser)
+
+            call.respondRedirect("/users")
         }
     }
 
-    get<LocationUser.Delete> { userId ->
+    get("/user/{id}/delete") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.USER) { user ->
-        if (user == null || !user.checkPermission(Permission.USER)) {
+            val userId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val deleteUser = UserRepository.get(userId) ?: return@get
-        } else {
-            val deleteUser = User.get(userId.id) ?: return@get
 
             if (user.checkPermission(Permission.USER) &&
                 (Permission.ADMIN !in deleteUser.permissions || Permission.ADMIN in user.permissions)
             ) {
-                deleteUser.delete()
+                UserRepository.delete(userId)
             }
 
-            call.respondRedirect("/user")
+            call.respondRedirect("/users")
         }
     }
 }

src/jvmMain/kotlin/de/kif/backend/route/WorkGroup.kt

@@ -1,37 +1,38 @@
 package de.kif.backend.route
 
-import de.kif.backend.LocationLogin
+
-import de.kif.backend.LocationWorkGroup
+import de.kif.backend.authenticateOrRedirect
-import de.kif.backend.PortalSession
+import de.kif.backend.repository.TrackRepository
-import de.kif.backend.database.Language
+import de.kif.backend.repository.WorkGroupRepository
-import de.kif.backend.model.Permission
-import de.kif.backend.model.Track
-import de.kif.backend.model.WorkGroup
 import de.kif.backend.util.Search
 import de.kif.backend.view.MainTemplate
 import de.kif.backend.view.MenuTemplate
 import de.kif.backend.view.TableTemplate
+import de.kif.common.model.Language
+import de.kif.common.model.Permission
+import de.kif.common.model.WorkGroup
 import io.ktor.application.call
 import io.ktor.html.insert
 import io.ktor.html.respondHtmlTemplate
-import io.ktor.locations.get
-import io.ktor.locations.post
-import io.ktor.request.path
 import io.ktor.request.receiveParameters
 import io.ktor.response.respondRedirect
 import io.ktor.routing.Route
-import io.ktor.sessions.get
+import io.ktor.routing.get
-import io.ktor.sessions.sessions
+import io.ktor.routing.post
 import io.ktor.util.toMap
 import kotlinx.html.*
+import kotlin.collections.component1
+import kotlin.collections.component2
+import kotlin.collections.find
+import kotlin.collections.firstOrNull
+import kotlin.collections.mapValues
+import kotlin.collections.set
 
 fun Route.workGroup() {
-    get<LocationWorkGroup> { param ->
+    get("workgroups") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val search = call.parameters["search"] ?: ""
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val list = WorkGroupRepository.all()
-        } else {
-            val list = WorkGroup.list()
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -40,10 +41,10 @@ fun Route.workGroup() {
                 content {
                     h1 { +"Work groups" }
                     insert(TableTemplate()) {
-                        searchValue = param.search
+                        searchValue = search
 
                         action {
-                            a("/track") {
+                            a("/tracks") {
                                 button(classes = "form-btn") {
                                     +"Edit tracks"
                                 }
@@ -83,7 +84,7 @@ fun Route.workGroup() {
                         }
 
                         for (u in list) {
-                            if (Search.match(param.search, u.name)) {
+                            if (Search.match(search, u.name)) {
                                 entry {
                                     attributes["data-search"] = Search.pack(u.name)
                                     td {
@@ -121,13 +122,11 @@ fun Route.workGroup() {
         }
     }
 
-    get<LocationWorkGroup.Edit> { workGroupId ->
+    get("/workgroup/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val workGroupId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
+            val editWorkGroup = WorkGroupRepository.get(workGroupId) ?: return@get
-        } else {
+            val tracks = TrackRepository.all()
-            val editWorkGroup = WorkGroup.get(workGroupId.id)
-            val tracks = Track.list()
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -179,20 +178,20 @@ fun Route.workGroup() {
                                     name = "track"
 
                                     option {
-                                        selected = (editWorkGroup.trackId ?: -1) < 0
+                                        selected = (editWorkGroup.track?.id ?: -1) < 0
                                         value = "-1"
                                         +"None"
                                     }
                                     for (track in tracks) {
                                         option {
-                                            selected = editWorkGroup.trackId == track.id
+                                            selected = editWorkGroup.track?.id == track.id
                                             value = track.id.toString()
                                             +track.name
                                         }
                                     }
                                 }
 
-                                a("/track", classes = "form-btn") {
+                                a("/tracks", classes = "form-btn") {
                                     i("material-icons") { +"edit" }
                                 }
                             }
@@ -228,8 +227,8 @@ fun Route.workGroup() {
                                 for (language in Language.values()) {
                                     option {
                                         selected = editWorkGroup.language == language
-                                        value = language.name
+                                        value = language.code
-                                        +language.toString()
+                                        +language.localeName
                                     }
                                 }
                             }
@@ -287,36 +286,37 @@ fun Route.workGroup() {
         }
     }
 
-    post<LocationWorkGroup.Edit> { workGroupId ->
+    post("/workgroup/{id}") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val workGroupId = call.parameters["id"]?.toLongOrNull() ?: return@post
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
-            val editWorkGroup = WorkGroup.get(workGroupId.id)
+            var editWorkGroup = WorkGroupRepository.get(workGroupId) ?: return@post
 
-            params["name"]?.let { editWorkGroup.name = it }
+            params["name"]?.let { editWorkGroup = editWorkGroup.copy(name = it) }
-            params["interested"]?.toIntOrNull()?.let { editWorkGroup.interested = it }
+            params["interested"]?.toIntOrNull()?.let { editWorkGroup = editWorkGroup.copy(interested = it) }
-            params["track"]?.toIntOrNull()?.let { editWorkGroup.trackId = it }
+            params["track"]?.toLongOrNull()?.let {
-            params["projector"]?.let { editWorkGroup.projector = it == "on" }
+                val track = TrackRepository.get(it)
-            params["resolution"]?.let { editWorkGroup.resolution = it == "on" }
+                editWorkGroup = editWorkGroup.copy(track = track)
-            params["length"]?.toIntOrNull()?.let { editWorkGroup.length = it }
+            }
-            params["language"]?.let { editWorkGroup.language = Language.values().find { l -> l.name == it } ?: Language.GERMAN }
+            params["projector"]?.let { editWorkGroup = editWorkGroup.copy(projector = it == "on") }
+            params["resolution"]?.let { editWorkGroup = editWorkGroup.copy(resolution = it == "on") }
+            params["length"]?.toIntOrNull()?.let { editWorkGroup = editWorkGroup.copy(length = it) }
+            params["language"]?.let {
+                editWorkGroup =
+                    editWorkGroup.copy(language = Language.values().find { l -> l.code == it } ?: Language.GERMAN)
+            }
 
-            editWorkGroup.save()
+            WorkGroupRepository.update(editWorkGroup)
 
-            call.respondRedirect("/workgroup")
+            call.respondRedirect("/workgroups")
         }
     }
 
-    get<LocationWorkGroup.New> {
+    get("/workgroup/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val tracks = TrackRepository.all()
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val tracks = Track.list()
             call.respondHtmlTemplate(MainTemplate()) {
                 menuTemplate {
                     this.user = user
@@ -410,8 +410,8 @@ fun Route.workGroup() {
                                 for (language in Language.values()) {
                                     option {
                                         selected = language == Language.GERMAN
-                                        value = language.name
+                                        value = language.code
-                                        +language.toString()
+                                        +language.localeName
                                     }
                                 }
                             }
@@ -464,47 +464,46 @@ fun Route.workGroup() {
         }
     }
 
-    post<LocationWorkGroup.New> {
+    post("/workgroup/new") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
             val params = call.receiveParameters().toMap().mapValues { (_, list) ->
                 list.firstOrNull()
             }
 
             val name = params["name"] ?: return@post
             val interested = (params["interested"] ?: return@post).toIntOrNull() ?: 0
-            val trackId = (params["track"] ?: return@post).toIntOrNull()
+            val track = (params["track"] ?: return@post).toLongOrNull()?.let { TrackRepository.get(it) }
             val projector = params["projector"] == "on"
             val resolution = params["resolution"] == "on"
             val length = (params["length"] ?: return@post).toIntOrNull() ?: 0
-            val language = (params["language"] ?: return@post).let { Language.values().find { l -> l.name == it } ?: Language.GERMAN }
+            val language = (params["language"] ?: return@post).let {
+                Language.values().find { l -> l.code == it } ?: Language.GERMAN
+            }
 
-            WorkGroup(
+            val workGroup = WorkGroup(
+                null,
                 name = name,
                 interested = interested,
-                trackId = trackId,
+                track = track,
                 projector = projector,
                 resolution = resolution,
                 length = length,
                 language = language
-            ).save()
+            )
 
-            call.respondRedirect("/workgroup")
+            WorkGroupRepository.create(workGroup)
+
+            call.respondRedirect("/workgroups")
         }
     }
 
-    get<LocationWorkGroup.Delete> { workGroupId ->
+    get("/workgroup/{id}/delete") {
-        val user = call.sessions.get<PortalSession>()?.getUser(call)
+        authenticateOrRedirect(Permission.WORK_GROUP) { user ->
-        if (user == null || !user.checkPermission(Permission.WORK_GROUP)) {
+            val workGroupId = call.parameters["id"]?.toLongOrNull() ?: return@get
-            call.respondRedirect("/login?${LocationLogin::next.name}=${call.request.path()}}")
-        } else {
-            val deleteWorkGroup = WorkGroup.get(workGroupId.id)
 
-            deleteWorkGroup.delete()
+            WorkGroupRepository.delete(workGroupId)
 
-            call.respondRedirect("/workgroup")
+            call.respondRedirect("/workgroups")
         }
     }
 }

src/jvmMain/kotlin/de/kif/backend/route/api/Authenticate.kt

@@ -0,0 +1,61 @@
+package de.kif.backend.route.api
+
+import de.kif.backend.PortalSession
+import de.kif.backend.checkPassword
+import de.kif.backend.repository.UserRepository
+import io.ktor.application.ApplicationCall
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.request.receive
+import io.ktor.response.respond
+import io.ktor.routing.Route
+import io.ktor.routing.post
+import io.ktor.sessions.sessions
+import io.ktor.sessions.set
+
+data class Credentials(
+    val username: String,
+    val password: String
+)
+
+fun Route.authenticateApi() {
+    post("/api/authenticate") {
+        val credentials = call.receive<Credentials>()
+
+        val user = UserRepository.find(credentials.username)
+
+        if (user?.id == null || !checkPassword(credentials.password, user.password)) {
+            call.error(HttpStatusCode.Unauthorized)
+            return@post
+        }
+
+        call.sessions.set(PortalSession(user.id))
+        call.respond(HttpStatusCode.OK, mapOf("OK" to true))
+    }
+}
+
+suspend fun ApplicationCall.success(data: Any? = null) {
+    val map: Map<String, Any>
+
+    if (data == null) {
+        map = mapOf("OK" to true)
+    } else {
+        map = mapOf(
+            "OK" to true,
+            "data" to data
+        )
+    }
+
+    respond(HttpStatusCode.OK, map)
+}
+
+suspend fun ApplicationCall.error(code: HttpStatusCode) {
+    respond(
+        code,
+        mapOf(
+            "OK" to false,
+            "errorCode" to code.value,
+            "errorDescription" to code.description
+        )
+    )
+}

src/jvmMain/kotlin/de/kif/backend/route/api/Room.kt

@@ -0,0 +1,92 @@
+package de.kif.backend.route.api
+
+import de.kif.backend.authenticate
+import de.kif.backend.repository.RoomRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.Room
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.request.receive
+import io.ktor.routing.Route
+import io.ktor.routing.get
+import io.ktor.routing.post
+
+fun Route.roomApi() {
+    get("/api/rooms") {
+        try {
+            val rooms = RoomRepository.all()
+            call.success(rooms)
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/rooms") {
+        try {
+            authenticate(Permission.ROOM) {
+                val room = call.receive<Room>()
+
+                val id = RoomRepository.create(room)
+
+                call.success(mapOf("id" to id))
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    get("/api/room/{id}") {
+        try {
+            val id = call.parameters["id"]?.toLongOrNull()
+            val room = id?.let { RoomRepository.get(it) }
+
+            if (room != null) {
+                call.success(room)
+            } else {
+                call.error(HttpStatusCode.NotFound)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/room/{id}") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val room = call.receive<Room>().copy(id = id)
+
+                if (room.id != null) {
+                    RoomRepository.update(room)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+    post("/api/room/{id}/delete") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+
+                if (id != null) {
+                    RoomRepository.delete(id)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/route/api/Schedule.kt

@@ -0,0 +1,121 @@
+package de.kif.backend.route.api
+
+import de.kif.backend.authenticate
+import de.kif.backend.repository.RoomRepository
+import de.kif.backend.repository.ScheduleRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.Schedule
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.request.receive
+import io.ktor.routing.Route
+import io.ktor.routing.get
+import io.ktor.routing.post
+
+data class ScheduleMove(val day: Int, val time: Int, val roomId: Long)
+
+fun Route.scheduleApi() {
+    get("/api/schedules") {
+        try {
+            val schedules = ScheduleRepository.all()
+            call.success(schedules)
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/schedules") {
+        try {
+            authenticate(Permission.SCHEDULE) {
+                val schedule = call.receive<Schedule>()
+
+                val id = ScheduleRepository.create(schedule)
+
+                call.success(mapOf("id" to id))
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    get("/api/schedule/{id}") {
+        try {
+            val id = call.parameters["id"]?.toLongOrNull()
+            val schedule = id?.let { ScheduleRepository.get(it) }
+
+            if (schedule != null) {
+                call.success(schedule)
+            } else {
+                call.error(HttpStatusCode.NotFound)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/schedule/{id}") {
+        try {
+            authenticate(Permission.SCHEDULE) {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val schedule = call.receive<Schedule>().copy(id = id)
+
+                if (schedule.id != null) {
+                    ScheduleRepository.update(schedule)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/schedule/{id}/delete") {
+        try {
+            authenticate(Permission.SCHEDULE) {
+                val id = call.parameters["id"]?.toLongOrNull()
+
+                if (id != null) {
+                    ScheduleRepository.delete(id)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/schedule/{id}/move") {
+        try {
+            authenticate(Permission.SCHEDULE) {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val scheduleMove = call.receive<ScheduleMove>()
+                var schedule = id?.let { ScheduleRepository.get(it) }
+                val room = RoomRepository.get(scheduleMove.roomId)
+
+                if (schedule != null && room != null) {
+                    schedule = schedule.copy(day = scheduleMove.day, time = scheduleMove.time, room = room)
+
+                    ScheduleRepository.update(schedule)
+
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/route/api/Track.kt

@@ -0,0 +1,92 @@
+package de.kif.backend.route.api
+
+import de.kif.backend.authenticate
+import de.kif.backend.repository.TrackRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.Track
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.request.receive
+import io.ktor.routing.Route
+import io.ktor.routing.get
+import io.ktor.routing.post
+
+fun Route.trackApi() {
+    get("/api/tracks") {
+        try {
+            val tracks = TrackRepository.all()
+            call.success(tracks)
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/tracks") {
+        try {
+            authenticate(Permission.WORK_GROUP) {
+                val track = call.receive<Track>()
+
+                val id = TrackRepository.create(track)
+
+                call.success(mapOf("id" to id))
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    get("/api/track/{id}") {
+        try {
+            val id = call.parameters["id"]?.toLongOrNull()
+            val track = id?.let { TrackRepository.get(it) }
+
+            if (track != null) {
+                TrackRepository.update(track)
+                call.success(track)
+            } else {
+                call.error(HttpStatusCode.NotFound)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/track/{id}") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val track = call.receive<Track>().copy(id = id)
+
+                if (track.id != null) {
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+    post("/api/track/{id}/delete") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+
+                if (id != null) {
+                    TrackRepository.delete(id)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/route/api/User.kt

@@ -0,0 +1,99 @@
+package de.kif.backend.route.api
+
+import de.kif.backend.authenticate
+import de.kif.backend.repository.UserRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.User
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.request.receive
+import io.ktor.routing.Route
+import io.ktor.routing.get
+import io.ktor.routing.post
+
+fun Route.userApi() {
+    get("/api/users") {
+        try {
+            authenticate(Permission.USER) {
+                val users = UserRepository.all()
+                call.success(users)
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/users") {
+        try {
+            authenticate(Permission.USER) {
+                val user = call.receive<User>()
+
+                val id = UserRepository.create(user)
+
+                call.success(mapOf("id" to id))
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    get("/api/user/{id}") {
+        try {
+            authenticate(Permission.USER) {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val user = id?.let { UserRepository.get(it) }
+
+                if (user != null) {
+                    call.success(user)
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/user/{id}") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val user = call.receive<User>().copy(id = id)
+
+                if (user.id != null) {
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+    post("/api/user/{id}/delete") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+
+                if (id != null) {
+                    UserRepository.delete(id)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/route/api/WorkGroup.kt

@@ -0,0 +1,92 @@
+package de.kif.backend.route.api
+
+import de.kif.backend.authenticate
+import de.kif.backend.repository.WorkGroupRepository
+import de.kif.common.model.Permission
+import de.kif.common.model.WorkGroup
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.request.receive
+import io.ktor.routing.Route
+import io.ktor.routing.get
+import io.ktor.routing.post
+
+fun Route.workGroupApi() {
+    get("/api/workgroups") {
+        try {
+            val workGroups = WorkGroupRepository.all()
+            call.success(workGroups)
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/workgroups") {
+        try {
+            authenticate(Permission.WORK_GROUP) {
+                val workGroup = call.receive<WorkGroup>()
+
+                val id = WorkGroupRepository.create(workGroup)
+
+                call.success(mapOf("id" to id))
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    get("/api/workgroup/{id}") {
+        try {
+            val id = call.parameters["id"]?.toLongOrNull()
+            val workGroup = id?.let { WorkGroupRepository.get(it) }
+
+            if (workGroup != null) {
+                call.success(workGroup)
+            } else {
+                call.error(HttpStatusCode.NotFound)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+
+    post("/api/workgroup/{id}") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+                val workGroup = call.receive<WorkGroup>().copy(id = id)
+
+                if (workGroup.id != null) {
+                    WorkGroupRepository.update(workGroup)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+    post("/api/workgroup/{id}/delete") {
+        try {
+            authenticate {
+                val id = call.parameters["id"]?.toLongOrNull()
+
+                if (id != null) {
+                    WorkGroupRepository.delete(id)
+                    call.success()
+                } else {
+                    call.error(HttpStatusCode.NotFound)
+                }
+            } onFailure {
+                call.error(HttpStatusCode.Unauthorized)
+            }
+        } catch (_: Exception) {
+            call.error(HttpStatusCode.InternalServerError)
+        }
+    }
+}

src/jvmMain/kotlin/de/kif/backend/util/PushService.kt

@@ -1,22 +1,22 @@
-package de.kif.backend.route
+package de.kif.backend.util
 
+import de.kif.backend.repository.*
+import de.kif.common.*
+import de.kif.common.RepositoryType
 import io.ktor.http.cio.websocket.Frame
 import io.ktor.http.cio.websocket.readText
 import io.ktor.routing.Route
 import io.ktor.websocket.WebSocketServerSession
 import io.ktor.websocket.webSocket
-import kif.common.model.Message
-import kif.common.model.MessageType
 import kotlinx.coroutines.channels.ClosedReceiveChannelException
-import java.lang.Exception
 
 object PushService {
 
     var clients: List<WebSocketServerSession> = emptyList()
 
-    suspend fun notify(messageType: MessageType) {
+    suspend fun notify(type: MessageType, repository: RepositoryType, id: Long) {
         try {
-            val data = Message(messageType).stringify()
+            val data = Message(type, repository, id).stringify()
             for (client in clients) {
                 client.outgoing.send(Frame.Text(data))
             }
@@ -39,9 +39,15 @@ fun Route.pushService() {
         } catch (_: ClosedReceiveChannelException) {
             PushService.clients -= this
         } catch (e: Throwable) {
-            println("onError ${closeReason.await()}")
+            println("onFailure ${closeReason.await()}")
             e.printStackTrace()
             PushService.clients -= this
         }
     }
+
+    RoomRepository.registerPushService()
+    ScheduleRepository.registerPushService()
+    TrackRepository.registerPushService()
+    UserRepository.registerPushService()
+    WorkGroupRepository.registerPushService()
 }

src/jvmMain/kotlin/de/kif/backend/view/MenuTemplate.kt

@@ -1,13 +1,12 @@
 package de.kif.backend.view
 
-import de.kif.backend.model.Permission
+import de.kif.common.model.Permission
-import de.kif.backend.model.User
+import de.kif.common.model.User
 import io.ktor.html.Template
 import kotlinx.html.*
 
 class MenuTemplate() : Template<FlowContent> {
 
-    var setup = false
     var active: Tab = Tab.DASHBOARD
     var user: User? = null
 
@@ -15,11 +14,6 @@ class MenuTemplate() : Template<FlowContent> {
         nav("menu") {
             div("container") {
                 div("menu-left") {
-                    if (setup) {
-                        a(classes = "active") {
-                            +"Setup"
-                        }
-                    } else {
                     a("/", classes = if (active == Tab.DASHBOARD) "active" else null) {
                         +"Dashboard"
                     }
@@ -27,8 +21,6 @@ class MenuTemplate() : Template<FlowContent> {
                         +"Calendar"
                     }
                 }
-                }
-                if (!setup) {
                 div("menu-right") {
                     span("menu-icon") {
                         i("material-icons") { +"menu" }
@@ -41,22 +33,17 @@ class MenuTemplate() : Template<FlowContent> {
                             }
                         } else {
                             if (user.checkPermission(Permission.WORK_GROUP)) {
-                                    a("/workgroup", classes = if (active == Tab.WORK_GROUP) "active" else null) {
+                                a("/workgroups", classes = if (active == Tab.WORK_GROUP) "active" else null) {
                                     +"Work groups"
                                 }
                             }
                             if (user.checkPermission(Permission.ROOM)) {
-                                    a("/room", classes = if (active == Tab.ROOM) "active" else null) {
+                                a("/rooms", classes = if (active == Tab.ROOM) "active" else null) {
                                     +"Rooms"
                                 }
                             }
                             if (user.checkPermission(Permission.PERSON)) {
-                                    a("/person", classes = if (active == Tab.PERSON) "active" else null) {
+                                a("/users", classes = if (active == Tab.USER) "active" else null) {
-                                        +"Persons"
-                                    }
-                                }
-                                if (user.checkPermission(Permission.PERSON)) {
-                                    a("/user", classes = if (active == Tab.USER) "active" else null) {
                                     +"Users"
                                 }
                             }
@@ -69,7 +56,6 @@ class MenuTemplate() : Template<FlowContent> {
             }
         }
     }
-    }
 
     enum class Tab {
         DASHBOARD, CALENDAR, ACCOUNT, WORK_GROUP, ROOM, PERSON, USER

src/jvmTest/resources/test.http

@@ -0,0 +1,38 @@
+GET http://localhost:8080/api/rooms
+
+###
+
+POST http://localhost:8080/api/authenticate
+Content-Type: application/json
+
+{
+  "username": "admin",
+  "password": "admin"
+}
+
+
+> {%
+ client.assert(response.body.OK === true, "Login failed!");
+ client.global.set("auth_token", response.headers.valueOf("Set-Cookie"));
+ %}
+
+###
+
+POST http://localhost:8080/api/rooms
+Content-Type: application/json
+Cookie: {{auth_token}}
+
+{
+  "name": "E007",
+  "places": 20,
+  "projector": true
+}
+
+###
+
+
+POST http://localhost:8080/api/room/2/delete
+Content-Type: application/json
+Cookie: {{auth_token}}
+
+###