Merge pull request #104 from SELab1/tasksoverview

Tasksoverview

app/src/main/java/be/ugent/sel/studeez/common/composable/feed/FeedViewModel.kt

@@ -2,14 +2,16 @@ package be.ugent.sel.studeez.common.composable.feed
 
 import androidx.lifecycle.viewModelScope
 import be.ugent.sel.studeez.data.SelectedTask
-import be.ugent.sel.studeez.data.local.models.FeedEntry
 import be.ugent.sel.studeez.domain.FeedDAO
 import be.ugent.sel.studeez.domain.LogService
 import be.ugent.sel.studeez.domain.TaskDAO
 import be.ugent.sel.studeez.navigation.StudeezDestinations
 import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 

app/src/main/java/be/ugent/sel/studeez/common/composable/tasks/SubjectEntry.kt

@@ -1,13 +1,7 @@
 package be.ugent.sel.studeez.common.composable.tasks
 
 import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.Card
 import androidx.compose.material.Icon
@@ -15,6 +9,8 @@ import androidx.compose.material.Text
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.List
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -24,16 +20,20 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import be.ugent.sel.studeez.R.string as AppText
 import be.ugent.sel.studeez.common.composable.StealthButton
 import be.ugent.sel.studeez.data.local.models.task.Subject
 import be.ugent.sel.studeez.data.local.models.timer_functional.HoursMinutesSeconds
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flowOf
+import be.ugent.sel.studeez.R.string as AppText
 
 @Composable
 fun SubjectEntry(
     subject: Subject,
     onViewSubject: () -> Unit,
+    getStudyTime: () -> Flow<Int>,
 ) {
+    val studytime by getStudyTime().collectAsState(initial = 0)
     Card(
         modifier = Modifier
             .fillMaxWidth()
@@ -70,7 +70,7 @@ fun SubjectEntry(
                         verticalAlignment = Alignment.CenterVertically,
                     ) {
                         Text(
-                            text = HoursMinutesSeconds(subject.time).toString(),
+                            text = HoursMinutesSeconds(studytime).toString(),
                         )
                         Row(
                             verticalAlignment = Alignment.CenterVertically,
@@ -80,7 +80,7 @@ fun SubjectEntry(
                                 imageVector = Icons.Default.List,
                                 contentDescription = stringResource(id = AppText.tasks)
                             )
-                            Text(text = "0/0") // TODO
+                            Text(text = "${subject.taskCompletedCount}/${subject.taskCount}")
                         }
                     }
                 }
@@ -104,9 +104,12 @@ fun SubjectEntryPreview() {
         subject = Subject(
             name = "Test Subject",
             argb_color = 0xFFFFD200,
-            time = 60
+            taskCount = 5,
+            taskCompletedCount = 2,
         ),
-    ) {}
+        onViewSubject = {},
+        getStudyTime = { flowOf() }
+    )
 }
 
 @Preview
@@ -116,7 +119,8 @@ fun OverflowSubjectEntryPreview() {
         subject = Subject(
             name = "Testttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt",
             argb_color = 0xFFFFD200,
-            time = 60
         ),
-    ) {}
+        onViewSubject = {},
+        getStudyTime = { flowOf() }
+    )
 }

app/src/main/java/be/ugent/sel/studeez/common/composable/tasks/TaskEntry.kt

@@ -1,17 +1,7 @@
 package be.ugent.sel.studeez.common.composable.tasks
 
-import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.layout.Box
+import androidx.compose.material.*
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.material.Card
-import androidx.compose.material.Checkbox
-import androidx.compose.material.CheckboxDefaults
-import androidx.compose.material.Icon
-import androidx.compose.material.IconButton
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.Text
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.runtime.Composable
@@ -31,7 +21,7 @@ import be.ugent.sel.studeez.resources
 fun TaskEntry(
     task: Task,
     onCheckTask: (Boolean) -> Unit,
-    onDeleteTask: () -> Unit,
+    onArchiveTask: () -> Unit,
     onStartTask: () -> Unit
 ) {
     Card(
@@ -81,7 +71,7 @@ fun TaskEntry(
             Box(modifier = Modifier.weight(7f)) {
                 if (task.completed) {
                     IconButton(
-                        onClick = onDeleteTask,
+                        onClick = onArchiveTask,
                         modifier = Modifier
                             .padding(start = 20.dp)
                     ) {

app/src/main/java/be/ugent/sel/studeez/data/local/models/task/Subject.kt

@@ -1,10 +1,22 @@
 package be.ugent.sel.studeez.data.local.models.task
 
 import com.google.firebase.firestore.DocumentId
+import com.google.firebase.firestore.Exclude
 
 data class Subject(
     @DocumentId val id: String = "",
     val name: String = "",
-    val time: Int = 0,
     val argb_color: Long = 0,
+    var archived: Boolean = false,
+    @get:Exclude @set:Exclude
+    var taskCount: Int = 0,
+    @get:Exclude @set:Exclude
+    var taskCompletedCount: Int = 0,
 )
+
+object SubjectDocument {
+    const val id = "id"
+    const val name = "name"
+    const val archived = "archived"
+    const val argb_color = "argb_color"
+}

app/src/main/java/be/ugent/sel/studeez/data/local/models/task/Task.kt

@@ -5,10 +5,15 @@ import com.google.firebase.firestore.DocumentId
 data class Task(
     @DocumentId val id: String = "",
     val name: String = "",
-    val completed: Boolean = false,
+    var completed: Boolean = false,
     val time: Int = 0,
     val subjectId: String = "",
-)
+    var archived: Boolean = false,
+) {
+    fun archive() {
+        this.archived = true
+    }
+}
 
 object TaskDocument {
     const val id = "id"
@@ -16,4 +21,5 @@ object TaskDocument {
     const val completed = "completed"
     const val time = "time"
     const val subjectId = "subjectId"
+    const val archived = "archived"
 }

app/src/main/java/be/ugent/sel/studeez/domain/SubjectDAO.kt

@@ -12,5 +12,10 @@ interface SubjectDAO {
     fun deleteSubject(oldSubject: Subject)
 
     fun updateSubject(newSubject: Subject)
+
+    suspend fun getTaskCount(subject: Subject): Int
+    suspend fun getCompletedTaskCount(subject: Subject): Int
+    fun getStudyTime(subject: Subject): Flow<Int>
+
     suspend fun getSubject(subjectId: String): Subject?
 }

app/src/main/java/be/ugent/sel/studeez/domain/TaskDAO.kt

@@ -14,7 +14,5 @@ interface TaskDAO {
 
     fun deleteTask(oldTask: Task)
 
-    fun toggleTaskCompleted(task: Task, completed: Boolean)
-
     suspend fun getTask(subjectId: String, taskId: String): Task
 }

app/src/main/java/be/ugent/sel/studeez/domain/implementation/FireBaseSubjectDAO.kt

@@ -1,11 +1,14 @@
 package be.ugent.sel.studeez.domain.implementation
 
 import be.ugent.sel.studeez.data.local.models.task.Subject
-import be.ugent.sel.studeez.data.local.models.task.Task
+import be.ugent.sel.studeez.data.local.models.task.SubjectDocument
 import be.ugent.sel.studeez.domain.AccountDAO
 import be.ugent.sel.studeez.domain.SubjectDAO
+import be.ugent.sel.studeez.domain.TaskDAO
+import com.google.firebase.firestore.AggregateSource
 import com.google.firebase.firestore.CollectionReference
 import com.google.firebase.firestore.FirebaseFirestore
+import com.google.firebase.firestore.Query
 import com.google.firebase.firestore.ktx.snapshots
 import com.google.firebase.firestore.ktx.toObject
 import kotlinx.coroutines.flow.Flow
@@ -16,11 +19,20 @@ import javax.inject.Inject
 class FireBaseSubjectDAO @Inject constructor(
     private val firestore: FirebaseFirestore,
     private val auth: AccountDAO,
+    private val taskDAO: TaskDAO,
 ) : SubjectDAO {
     override fun getSubjects(): Flow<List<Subject>> {
         return currentUserSubjectsCollection()
+            .subjectNotArchived()
             .snapshots()
             .map { it.toObjects(Subject::class.java) }
+            .map { subjects ->
+                subjects.map { subject ->
+                    subject.taskCount = getTaskCount(subject)
+                    subject.taskCompletedCount = getCompletedTaskCount(subject)
+                    subject
+                }
+            }
     }
 
     override suspend fun getSubject(subjectId: String): Subject? {
@@ -39,8 +51,45 @@ class FireBaseSubjectDAO @Inject constructor(
         currentUserSubjectsCollection().document(newSubject.id).set(newSubject)
     }
 
+    override suspend fun getTaskCount(subject: Subject): Int {
+        return subjectTasksCollection(subject)
+            .taskNotArchived()
+            .count()
+            .get(AggregateSource.SERVER)
+            .await()
+            .count.toInt()
+    }
+
+    override suspend fun getCompletedTaskCount(subject: Subject): Int {
+        return subjectTasksCollection(subject)
+            .taskNotArchived()
+            .taskNotCompleted()
+            .count()
+            .get(AggregateSource.SERVER)
+            .await()
+            .count.toInt()
+    }
+
+    override fun getStudyTime(subject: Subject): Flow<Int> {
+        return taskDAO.getTasks(subject)
+            .map { tasks -> tasks.sumOf { it.time } }
+    }
+
     private fun currentUserSubjectsCollection(): CollectionReference =
         firestore.collection(FireBaseCollections.USER_COLLECTION)
             .document(auth.currentUserId)
             .collection(FireBaseCollections.SUBJECT_COLLECTION)
+
+    private fun subjectTasksCollection(subject: Subject): CollectionReference =
+        firestore.collection(FireBaseCollections.USER_COLLECTION)
+            .document(auth.currentUserId)
+            .collection(FireBaseCollections.SUBJECT_COLLECTION)
+            .document(subject.id)
+            .collection(FireBaseCollections.TASK_COLLECTION)
+
+    fun CollectionReference.subjectNotArchived(): Query =
+        this.whereEqualTo(SubjectDocument.archived, false)
+
+    fun Query.subjectNotArchived(): Query =
+        this.whereEqualTo(SubjectDocument.archived, false)
 }

app/src/main/java/be/ugent/sel/studeez/domain/implementation/FireBaseTaskDAO.kt

@@ -7,10 +7,10 @@ import be.ugent.sel.studeez.domain.AccountDAO
 import be.ugent.sel.studeez.domain.TaskDAO
 import com.google.firebase.firestore.CollectionReference
 import com.google.firebase.firestore.FirebaseFirestore
+import com.google.firebase.firestore.Query
 import com.google.firebase.firestore.ktx.snapshots
 import com.google.firebase.firestore.ktx.toObject
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.tasks.await
 import javax.inject.Inject
@@ -21,6 +21,7 @@ class FireBaseTaskDAO @Inject constructor(
 ) : TaskDAO {
     override fun getTasks(subject: Subject): Flow<List<Task>> {
         return selectedSubjectTasksCollection(subject.id)
+            .taskNotArchived()
             .snapshots()
             .map { it.toObjects(Task::class.java) }
     }
@@ -34,23 +35,34 @@ class FireBaseTaskDAO @Inject constructor(
     }
 
     override fun updateTask(newTask: Task) {
-        selectedSubjectTasksCollection(newTask.id).document(newTask.id).set(newTask)
+        selectedSubjectTasksCollection(newTask.subjectId)
+            .document(newTask.id)
+            .set(newTask)
     }
 
     override fun deleteTask(oldTask: Task) {
         selectedSubjectTasksCollection(oldTask.subjectId).document(oldTask.id).delete()
     }
 
-    override fun toggleTaskCompleted(task: Task, completed: Boolean) {
-        selectedSubjectTasksCollection(task.subjectId)
-            .document(task.id)
-            .update(TaskDocument.completed, completed)
-    }
-
     private fun selectedSubjectTasksCollection(subjectId: String): CollectionReference =
         firestore.collection(FireBaseCollections.USER_COLLECTION)
             .document(auth.currentUserId)
             .collection(FireBaseCollections.SUBJECT_COLLECTION)
             .document(subjectId)
             .collection(FireBaseCollections.TASK_COLLECTION)
+
 }
+
+// Extend CollectionReference and Query with some filters
+
+fun CollectionReference.taskNotArchived(): Query =
+    this.whereEqualTo(TaskDocument.archived, false)
+
+fun Query.taskNotArchived(): Query =
+    this.whereEqualTo(TaskDocument.archived, false)
+
+fun CollectionReference.taskNotCompleted(): Query =
+    this.whereEqualTo(TaskDocument.completed, true)
+
+fun Query.taskNotCompleted(): Query =
+    this.whereEqualTo(TaskDocument.completed, true)

app/src/main/java/be/ugent/sel/studeez/domain/implementation/FirebaseFeedDAO.kt

@@ -7,30 +7,32 @@ import be.ugent.sel.studeez.data.local.models.task.Subject
 import be.ugent.sel.studeez.data.local.models.task.Task
 import be.ugent.sel.studeez.domain.FeedDAO
 import be.ugent.sel.studeez.domain.SessionDAO
+import be.ugent.sel.studeez.domain.SubjectDAO
 import be.ugent.sel.studeez.domain.TaskDAO
 import com.google.firebase.Timestamp
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
 import javax.inject.Inject
 
 class FirebaseFeedDAO @Inject constructor(
     private val sessionDAO: SessionDAO,
     private val taskDAO: TaskDAO,
-    private val subjectDAO: FireBaseSubjectDAO
+    private val subjectDAO: SubjectDAO
 ) : FeedDAO {
 
     /**
      *  Return a map as with key the day and value a list of feedentries for that day.
      */
     override fun getFeedEntries(): Flow<Map<String, List<FeedEntry>>> {
-        return sessionDAO.getSessions().map {sessionReports ->
+        return sessionDAO.getSessions().map { sessionReports ->
             sessionReports
-                .map { sessionReport ->  sessionToFeedEntry(sessionReport) }
+                .map { sessionReport -> sessionToFeedEntry(sessionReport) }
                 .sortedByDescending { it.endTime }
                 .groupBy { getFormattedTime(it) }
                 .mapValues { (_, entries) ->
                     entries
-                    .groupBy { it.taskId }
+                        .groupBy { it.taskId }
-                    .map { fuseFeedEntries(it.component2()) }
+                        .map { fuseFeedEntries(it.component2()) }
                 }
         }
     }

app/src/main/java/be/ugent/sel/studeez/navigation/StudeezNavGraph.kt

@@ -24,12 +24,12 @@ import be.ugent.sel.studeez.screens.sessions.SessionsRoute
 import be.ugent.sel.studeez.screens.settings.SettingsRoute
 import be.ugent.sel.studeez.screens.sign_up.SignUpRoute
 import be.ugent.sel.studeez.screens.splash.SplashRoute
-import be.ugent.sel.studeez.screens.tasks.SubjectRoute
+import be.ugent.sel.studeez.screens.subjects.SubjectRoute
 import be.ugent.sel.studeez.screens.tasks.TaskRoute
-import be.ugent.sel.studeez.screens.tasks.forms.SubjectAddRoute
+import be.ugent.sel.studeez.screens.subjects.form.SubjectCreateRoute
-import be.ugent.sel.studeez.screens.tasks.forms.SubjectEditRoute
+import be.ugent.sel.studeez.screens.subjects.form.SubjectEditRoute
-import be.ugent.sel.studeez.screens.tasks.forms.TaskAddRoute
+import be.ugent.sel.studeez.screens.tasks.form.TaskCreateRoute
-import be.ugent.sel.studeez.screens.tasks.forms.TaskEditRoute
+import be.ugent.sel.studeez.screens.tasks.form.TaskEditRoute
 import be.ugent.sel.studeez.screens.timer_form.TimerAddRoute
 import be.ugent.sel.studeez.screens.timer_form.TimerEditRoute
 import be.ugent.sel.studeez.screens.timer_form.timer_type_select.TimerTypeSelectScreen
@@ -81,7 +81,7 @@ fun StudeezNavGraph(
         }
 
         composable(StudeezDestinations.ADD_SUBJECT_FORM) {
-            SubjectAddRoute(
+            SubjectCreateRoute(
                 goBack = goBack,
                 openAndPopUp = openAndPopUp,
                 viewModel = hiltViewModel(),
@@ -105,7 +105,7 @@ fun StudeezNavGraph(
         }
 
         composable(StudeezDestinations.ADD_TASK_FORM) {
-            TaskAddRoute(
+            TaskCreateRoute(
                 goBack = goBack,
                 openAndPopUp = openAndPopUp,
                 viewModel = hiltViewModel(),

app/src/main/java/be/ugent/sel/studeez/screens/session_recap/SessionRecapViewModel.kt

@@ -1,9 +1,11 @@
 package be.ugent.sel.studeez.screens.session_recap
 
+import be.ugent.sel.studeez.data.SelectedTask
 import be.ugent.sel.studeez.data.SessionReportState
 import be.ugent.sel.studeez.data.local.models.SessionReport
 import be.ugent.sel.studeez.domain.LogService
 import be.ugent.sel.studeez.domain.SessionDAO
+import be.ugent.sel.studeez.domain.TaskDAO
 import be.ugent.sel.studeez.navigation.StudeezDestinations
 import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
@@ -13,6 +15,8 @@ import javax.inject.Inject
 class SessionRecapViewModel @Inject constructor(
     sessionReportState: SessionReportState,
     private val sessionDAO: SessionDAO,
+    private val taskDAO: TaskDAO,
+    private val selectedTask: SelectedTask,
     logService: LogService
 ) : StudeezViewModel(logService) {
 
@@ -24,6 +28,8 @@ class SessionRecapViewModel @Inject constructor(
 
     fun saveSession(open: (String, String) -> Unit) {
         sessionDAO.saveSession(getSessionReport())
+        val newTask = selectedTask().copy(time = selectedTask().time + report.studyTime)
+        taskDAO.updateTask(newTask)
         open(StudeezDestinations.HOME_SCREEN, StudeezDestinations.SESSION_RECAP)
     }
 

app/src/main/java/be/ugent/sel/studeez/screens/subjects/SubjectScreen.kt

@@ -0,0 +1,121 @@
+package be.ugent.sel.studeez.screens.subjects
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.CircularProgressIndicator
+import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import be.ugent.sel.studeez.common.composable.NewTaskSubjectButton
+import be.ugent.sel.studeez.common.composable.PrimaryScreenTemplate
+import be.ugent.sel.studeez.common.composable.drawer.DrawerActions
+import be.ugent.sel.studeez.common.composable.navbar.NavigationBarActions
+import be.ugent.sel.studeez.common.composable.tasks.SubjectEntry
+import be.ugent.sel.studeez.data.local.models.task.Subject
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flowOf
+import be.ugent.sel.studeez.R.string as AppText
+
+@Composable
+fun SubjectRoute(
+    open: (String) -> Unit,
+    viewModel: SubjectViewModel,
+    drawerActions: DrawerActions,
+    navigationBarActions: NavigationBarActions,
+) {
+    val uiState by viewModel.uiState.collectAsState()
+    SubjectScreen(
+        drawerActions = drawerActions,
+        navigationBarActions = navigationBarActions,
+        onAddSubject = { viewModel.onAddSubject(open) },
+        onViewSubject = { viewModel.onViewSubject(it, open) },
+        getStudyTime = viewModel::getStudyTime,
+        uiState,
+    )
+}
+
+@Composable
+fun SubjectScreen(
+    drawerActions: DrawerActions,
+    navigationBarActions: NavigationBarActions,
+    onAddSubject: () -> Unit,
+    onViewSubject: (Subject) -> Unit,
+    getStudyTime: (Subject) -> Flow<Int>,
+    uiState: SubjectUiState,
+) {
+    PrimaryScreenTemplate(
+        title = stringResource(AppText.my_subjects),
+        drawerActions = drawerActions,
+        navigationBarActions = navigationBarActions,
+        barAction = {},
+    ) {
+        when (uiState) {
+            SubjectUiState.Loading -> Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .fillMaxHeight(),
+                verticalArrangement = Arrangement.Center,
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                CircularProgressIndicator(color = MaterialTheme.colors.onBackground)
+            }
+            is SubjectUiState.Succes -> {
+                Column(
+                    modifier = Modifier.padding(top = 5.dp)
+                ) {
+                    NewTaskSubjectButton(onClick = onAddSubject, AppText.new_subject)
+                    LazyColumn {
+                        items(uiState.subjects) {
+                            SubjectEntry(
+                                subject = it,
+                                onViewSubject = { onViewSubject(it) },
+                                getStudyTime = { getStudyTime(it) },
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Preview
+@Composable
+fun SubjectScreenPreview() {
+    SubjectScreen(
+        drawerActions = DrawerActions({}, {}, {}, {}, {}),
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {}),
+        onAddSubject = {},
+        onViewSubject = {},
+        getStudyTime = { flowOf() },
+        uiState = SubjectUiState.Succes(
+            listOf(
+                Subject(
+                    name = "Test Subject",
+                    argb_color = 0xFFFFD200,
+                    taskCount = 5, taskCompletedCount = 2,
+                )
+            )
+        )
+    )
+}
+
+@Preview
+@Composable
+fun SubjectScreenLoadingPreview() {
+    SubjectScreen(
+        drawerActions = DrawerActions({}, {}, {}, {}, {}),
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {}),
+        onAddSubject = {},
+        onViewSubject = {},
+        getStudyTime = { flowOf() },
+        uiState = SubjectUiState.Loading
+    )
+}

app/src/main/java/be/ugent/sel/studeez/screens/subjects/SubjectUiState.kt

@@ -0,0 +1,8 @@
+package be.ugent.sel.studeez.screens.subjects
+
+import be.ugent.sel.studeez.data.local.models.task.Subject
+
+sealed interface SubjectUiState {
+    object Loading : SubjectUiState
+    data class Succes(val subjects: List<Subject>) : SubjectUiState
+}

app/src/main/java/be/ugent/sel/studeez/screens/subjects/SubjectViewModel.kt

@@ -1,5 +1,6 @@
-package be.ugent.sel.studeez.screens.tasks
+package be.ugent.sel.studeez.screens.subjects
 
+import androidx.lifecycle.viewModelScope
 import be.ugent.sel.studeez.data.SelectedSubject
 import be.ugent.sel.studeez.data.local.models.task.Subject
 import be.ugent.sel.studeez.domain.LogService
@@ -7,7 +8,7 @@ import be.ugent.sel.studeez.domain.SubjectDAO
 import be.ugent.sel.studeez.navigation.StudeezDestinations
 import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.*
 import javax.inject.Inject
 
 @HiltViewModel
@@ -16,12 +17,21 @@ class SubjectViewModel @Inject constructor(
     private val selectedSubject: SelectedSubject,
     logService: LogService,
 ) : StudeezViewModel(logService) {
-    fun addSubject(open: (String) -> Unit) {
+
+    val uiState: StateFlow<SubjectUiState> = subjectDAO.getSubjects()
+        .map { SubjectUiState.Succes(it) }
+        .stateIn(
+            scope = viewModelScope,
+            initialValue = SubjectUiState.Loading,
+            started = SharingStarted.Eagerly,
+        )
+
+    fun onAddSubject(open: (String) -> Unit) {
         open(StudeezDestinations.ADD_SUBJECT_FORM)
     }
 
-    fun getSubjects(): Flow<List<Subject>> {
+    fun getStudyTime(subject: Subject): Flow<Int> {
-        return subjectDAO.getSubjects()
+        return subjectDAO.getStudyTime(subject)
     }
 
     fun onViewSubject(subject: Subject, open: (String) -> Unit) {

app/src/main/java/be/ugent/sel/studeez/screens/subjects/form/SubjectFormScreen.kt

@@ -1,4 +1,4 @@
-package be.ugent.sel.studeez.screens.tasks.forms
+package be.ugent.sel.studeez.screens.subjects.form
 
 import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Column
@@ -19,10 +19,10 @@ import be.ugent.sel.studeez.resources
 import be.ugent.sel.studeez.R.string as AppText
 
 @Composable
-fun SubjectAddRoute(
+fun SubjectCreateRoute(
     goBack: () -> Unit,
     openAndPopUp: (String, String) -> Unit,
-    viewModel: SubjectFormViewModel,
+    viewModel: SubjectCreateFormViewModel,
 ) {
     val uiState by viewModel.uiState
     SubjectForm(
@@ -39,7 +39,7 @@ fun SubjectAddRoute(
 fun SubjectEditRoute(
     goBack: () -> Unit,
     openAndPopUp: (String, String) -> Unit,
-    viewModel: SubjectFormViewModel,
+    viewModel: SubjectEditFormViewModel,
 ) {
     val uiState by viewModel.uiState
     SubjectForm(

app/src/main/java/be/ugent/sel/studeez/screens/subjects/form/SubjectFormUiState.kt

@@ -1,4 +1,4 @@
-package be.ugent.sel.studeez.screens.tasks.forms
+package be.ugent.sel.studeez.screens.subjects.form
 
 data class SubjectFormUiState(
     val name: String = "",

app/src/main/java/be/ugent/sel/studeez/screens/subjects/form/SubjectFormViewModel.kt

@@ -1,5 +1,6 @@
-package be.ugent.sel.studeez.screens.tasks.forms
+package be.ugent.sel.studeez.screens.subjects.form
 
+import androidx.compose.runtime.MutableState
 import androidx.compose.runtime.mutableStateOf
 import be.ugent.sel.studeez.data.SelectedSubject
 import be.ugent.sel.studeez.data.local.models.task.Subject
@@ -10,25 +11,17 @@ import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
 
-@HiltViewModel
+abstract class SubjectFormViewModel(
-class SubjectFormViewModel @Inject constructor(
+    protected val subjectDAO: SubjectDAO,
-    private val subjectDAO: SubjectDAO,
+    protected val selectedSubject: SelectedSubject,
-    private val selectedSubject: SelectedSubject,
     logService: LogService,
 ) : StudeezViewModel(logService) {
-    var uiState = mutableStateOf(
+    abstract val uiState: MutableState<SubjectFormUiState>
-        if (selectedSubject.isSet()) SubjectFormUiState(
-            name = selectedSubject().name,
-            color = selectedSubject().argb_color
-        )
-        else SubjectFormUiState()
-    )
-        private set
 
-    private val name: String
+    protected val name: String
         get() = uiState.value.name
 
-    private val color: Long
+    protected val color: Long
         get() = uiState.value.color
 
     fun onNameChange(newValue: String) {
@@ -38,11 +31,15 @@ class SubjectFormViewModel @Inject constructor(
     fun onColorChange(newValue: Long) {
         uiState.value = uiState.value.copy(color = newValue)
     }
+}
 
-    fun onDelete(openAndPopUp: (String, String) -> Unit) {
+@HiltViewModel
-        subjectDAO.deleteSubject(selectedSubject())
+class SubjectCreateFormViewModel @Inject constructor(
-        openAndPopUp(StudeezDestinations.SUBJECT_SCREEN, StudeezDestinations.EDIT_SUBJECT_FORM)
+    subjectDAO: SubjectDAO,
-    }
+    selectedSubject: SelectedSubject,
+    logService: LogService,
+) : SubjectFormViewModel(subjectDAO, selectedSubject, logService) {
+    override val uiState = mutableStateOf(SubjectFormUiState())
 
     fun onCreate(openAndPopUp: (String, String) -> Unit) {
         val newSubject = Subject(
@@ -57,6 +54,25 @@ class SubjectFormViewModel @Inject constructor(
 //        open(StudeezDestinations.TASKS_SCREEN)
         openAndPopUp(StudeezDestinations.SUBJECT_SCREEN, StudeezDestinations.ADD_SUBJECT_FORM)
     }
+}
+
+@HiltViewModel
+class SubjectEditFormViewModel @Inject constructor(
+    subjectDAO: SubjectDAO,
+    selectedSubject: SelectedSubject,
+    logService: LogService,
+) : SubjectFormViewModel(subjectDAO, selectedSubject, logService) {
+    override val uiState = mutableStateOf(
+        SubjectFormUiState(
+            name = selectedSubject().name,
+            color = selectedSubject().argb_color
+        )
+    )
+
+    fun onDelete(openAndPopUp: (String, String) -> Unit) {
+        subjectDAO.updateSubject(selectedSubject().copy(archived = true))
+        openAndPopUp(StudeezDestinations.SUBJECT_SCREEN, StudeezDestinations.EDIT_SUBJECT_FORM)
+    }
 
     fun onEdit(openAndPopUp: (String, String) -> Unit) {
         val newSubject = selectedSubject().copy(

app/src/main/java/be/ugent/sel/studeez/screens/tasks/SubjectScreen.kt

@@ -1,80 +0,0 @@
-package be.ugent.sel.studeez.screens.tasks
-
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.items
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import be.ugent.sel.studeez.common.composable.NewTaskSubjectButton
-import be.ugent.sel.studeez.common.composable.PrimaryScreenTemplate
-import be.ugent.sel.studeez.common.composable.drawer.DrawerActions
-import be.ugent.sel.studeez.common.composable.navbar.NavigationBarActions
-import be.ugent.sel.studeez.common.composable.tasks.SubjectEntry
-import be.ugent.sel.studeez.data.local.models.task.Subject
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flowOf
-import be.ugent.sel.studeez.R.string as AppText
-
-@Composable
-fun SubjectRoute(
-    open: (String) -> Unit,
-    viewModel: SubjectViewModel,
-    drawerActions: DrawerActions,
-    navigationBarActions: NavigationBarActions,
-) {
-    SubjectScreen(
-        drawerActions = drawerActions,
-        navigationBarActions = navigationBarActions,
-        addSubject = { viewModel.addSubject(open) },
-        getSubjects = viewModel::getSubjects,
-        onViewSubject = { viewModel.onViewSubject(it, open) },
-    )
-}
-
-@Composable
-fun SubjectScreen(
-    drawerActions: DrawerActions,
-    navigationBarActions: NavigationBarActions,
-    addSubject: () -> Unit,
-    getSubjects: () -> Flow<List<Subject>>,
-    onViewSubject: (Subject) -> Unit,
-) {
-    PrimaryScreenTemplate(
-        title = stringResource(AppText.my_subjects),
-        drawerActions = drawerActions,
-        navigationBarActions = navigationBarActions,
-        barAction = {},
-    ) {
-        val subjects = getSubjects().collectAsState(initial = emptyList())
-        Column(
-            modifier = Modifier.padding(top = 5.dp)
-        ) {
-            LazyColumn {
-                items(subjects.value) {
-                    SubjectEntry(
-                        subject = it,
-                        onViewSubject = { onViewSubject(it) },
-                    )
-                }
-            }
-            NewTaskSubjectButton(onClick = addSubject, AppText.new_subject)
-        }
-    }
-}
-
-@Preview
-@Composable
-fun SubjectScreenPreview() {
-    SubjectScreen(
-        drawerActions = DrawerActions({}, {}, {}, {}, {}),
-        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}, {}, {}, {}),
-        addSubject = {},
-        getSubjects = { flowOf() },
-        onViewSubject = {},
-    )
-}

app/src/main/java/be/ugent/sel/studeez/screens/tasks/TaskScreen.kt

@@ -27,10 +27,10 @@ data class TaskActions(
     val addTask: () -> Unit,
     val getSubject: () -> Subject,
     val getTasks: () -> Flow<List<Task>>,
-    val deleteTask: (Task) -> Unit,
     val onCheckTask: (Task, Boolean) -> Unit,
     val editSubject: () -> Unit,
-    val startTask: (Task) -> Unit
+    val startTask: (Task) -> Unit,
+    val archiveTask: (Task) -> Unit,
 )
 
 fun getTaskActions(viewModel: TaskViewModel, open: (String) -> Unit): TaskActions {
@@ -38,10 +38,10 @@ fun getTaskActions(viewModel: TaskViewModel, open: (String) -> Unit): TaskAction
         addTask = { viewModel.addTask(open) },
         getTasks = viewModel::getTasks,
         getSubject = viewModel::getSelectedSubject,
-        deleteTask = viewModel::deleteTask,
         onCheckTask = { task, isChecked -> viewModel.toggleTaskCompleted(task, isChecked) },
         editSubject = { viewModel.editSubject(open) },
-        startTask = { task -> viewModel.startTask(task, open) }
+        startTask = { task -> viewModel.startTask(task, open) },
+        archiveTask = viewModel::archiveTask
     )
 }
 
@@ -76,7 +76,7 @@ fun TaskScreen(
                     TaskEntry(
                         task = it,
                         onCheckTask = { isChecked -> taskActions.onCheckTask(it, isChecked) },
-                        onDeleteTask = { taskActions.deleteTask(it) },
+                        onArchiveTask = { taskActions.archiveTask(it) },
                         onStartTask = { taskActions.startTask(it) }
                     )
                 }
@@ -108,10 +108,10 @@ fun TaskScreenPreview() {
             {},
             { Subject(name = "Test Subject") },
             { flowOf() },
-            {},
             { _, _ -> run {} },
             {},
-            {}
+            {},
+            {},
         )
     )
 }

app/src/main/java/be/ugent/sel/studeez/screens/tasks/TaskViewModel.kt

@@ -5,7 +5,6 @@ import be.ugent.sel.studeez.data.SelectedTask
 import be.ugent.sel.studeez.data.local.models.task.Subject
 import be.ugent.sel.studeez.data.local.models.task.Task
 import be.ugent.sel.studeez.domain.LogService
-import be.ugent.sel.studeez.domain.SubjectDAO
 import be.ugent.sel.studeez.domain.TaskDAO
 import be.ugent.sel.studeez.navigation.StudeezDestinations
 import be.ugent.sel.studeez.screens.StudeezViewModel
@@ -16,7 +15,6 @@ import javax.inject.Inject
 @HiltViewModel
 class TaskViewModel @Inject constructor(
     private val taskDAO: TaskDAO,
-    private val subjectDAO: SubjectDAO,
     private val selectedSubject: SelectedSubject,
     private val selectedTask: SelectedTask,
     logService: LogService,
@@ -29,11 +27,6 @@ class TaskViewModel @Inject constructor(
         return taskDAO.getTasks(selectedSubject())
     }
 
-    fun deleteSubject(open: (String) -> Unit) {
-        subjectDAO.deleteSubject(selectedSubject())
-        open(StudeezDestinations.SUBJECT_SCREEN)
-    }
-
     fun getSelectedSubject(): Subject {
         return selectedSubject()
     }
@@ -42,8 +35,12 @@ class TaskViewModel @Inject constructor(
         taskDAO.deleteTask(task)
     }
 
+    fun archiveTask(task: Task) {
+        taskDAO.updateTask(task.copy(archived = true))
+    }
+
     fun toggleTaskCompleted(task: Task, completed: Boolean) {
-        taskDAO.toggleTaskCompleted(task, completed)
+        taskDAO.updateTask(task.copy(completed = completed))
     }
 
     fun editSubject(open: (String) -> Unit) {

app/src/main/java/be/ugent/sel/studeez/screens/tasks/form/TaskFormScreen.kt

@@ -1,4 +1,4 @@
-package be.ugent.sel.studeez.screens.tasks.forms
+package be.ugent.sel.studeez.screens.tasks.form
 
 import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Column
@@ -18,10 +18,10 @@ import be.ugent.sel.studeez.resources
 import be.ugent.sel.studeez.R.string as AppText
 
 @Composable
-fun TaskAddRoute(
+fun TaskCreateRoute(
     goBack: () -> Unit,
     openAndPopUp: (String, String) -> Unit,
-    viewModel: TaskFormViewModel,
+    viewModel: TaskCreateFormViewModel,
 ) {
     val uiState by viewModel.uiState
     TaskForm(
@@ -37,7 +37,7 @@ fun TaskAddRoute(
 fun TaskEditRoute(
     goBack: () -> Unit,
     openAndPopUp: (String, String) -> Unit,
-    viewModel: TaskFormViewModel,
+    viewModel: TaskEditFormViewModel,
 ) {
     val uiState by viewModel.uiState
     TaskForm(

app/src/main/java/be/ugent/sel/studeez/screens/tasks/form/TaskFormUiState.kt

@@ -1,4 +1,4 @@
-package be.ugent.sel.studeez.screens.tasks.forms
+package be.ugent.sel.studeez.screens.tasks.form
 
 data class TaskFormUiState(
     val name: String = "",

app/src/main/java/be/ugent/sel/studeez/screens/tasks/form/TaskFormViewModel.kt

@@ -1,5 +1,6 @@
-package be.ugent.sel.studeez.screens.tasks.forms
+package be.ugent.sel.studeez.screens.tasks.form
 
+import androidx.compose.runtime.MutableState
 import androidx.compose.runtime.mutableStateOf
 import be.ugent.sel.studeez.data.SelectedSubject
 import be.ugent.sel.studeez.data.SelectedTask
@@ -11,38 +12,54 @@ import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
 
-@HiltViewModel
+abstract class TaskFormViewModel(
-class TaskFormViewModel @Inject constructor(
+    protected val taskDAO: TaskDAO,
-    private val taskDAO: TaskDAO,
+    protected val selectedSubject: SelectedSubject,
-    private val selectedSubject: SelectedSubject,
+    protected val selectedTask: SelectedTask,
-    private val selectedTask: SelectedTask,
     logService: LogService,
 ) : StudeezViewModel(logService) {
-    var uiState = mutableStateOf(
+    abstract val uiState: MutableState<TaskFormUiState>
-        if (selectedTask.isSet()) TaskFormUiState(selectedTask().name) else TaskFormUiState()
-    )
-        private set
 
-    private val name: String
+    protected val name: String
         get() = uiState.value.name
 
     fun onNameChange(newValue: String) {
         uiState.value = uiState.value.copy(name = newValue)
     }
+}
 
-    fun onDelete(openAndPopUp: (String, String) -> Unit) {
+@HiltViewModel
-        taskDAO.deleteTask(selectedTask())
+class TaskCreateFormViewModel @Inject constructor(
-        openAndPopUp(StudeezDestinations.TASKS_SCREEN, StudeezDestinations.EDIT_TASK_FORM)
+    taskDAO: TaskDAO,
-    }
+    selectedSubject: SelectedSubject,
+    selectedTask: SelectedTask,
+    logService: LogService,
+) : TaskFormViewModel(taskDAO, selectedSubject, selectedTask, logService) {
+    override val uiState = mutableStateOf(TaskFormUiState())
 
     fun onCreate(openAndPopUp: (String, String) -> Unit) {
         val newTask = Task(name = name, subjectId = selectedSubject().id)
         taskDAO.saveTask(newTask)
         openAndPopUp(StudeezDestinations.TASKS_SCREEN, StudeezDestinations.ADD_TASK_FORM)
     }
+}
+
+@HiltViewModel
+class TaskEditFormViewModel @Inject constructor(
+    taskDAO: TaskDAO,
+    selectedSubject: SelectedSubject,
+    selectedTask: SelectedTask,
+    logService: LogService,
+) : TaskFormViewModel(taskDAO, selectedSubject, selectedTask, logService) {
+    override val uiState = mutableStateOf(TaskFormUiState())
+
+    fun onDelete(openAndPopUp: (String, String) -> Unit) {
+        taskDAO.deleteTask(selectedTask())
+        openAndPopUp(StudeezDestinations.TASKS_SCREEN, StudeezDestinations.EDIT_TASK_FORM)
+    }
 
     fun onEdit(openAndPopUp: (String, String) -> Unit) {
-        val newTask = Task(name = name)
+        val newTask = selectedTask().copy(name = name)
         taskDAO.updateTask(newTask)
         openAndPopUp(StudeezDestinations.TASKS_SCREEN, StudeezDestinations.EDIT_TASK_FORM)
     }