Add announcements to compose

app/build.gradle

@@ -80,14 +80,14 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
 
     // Compose
-    implementation "androidx.compose.runtime:runtime:$compose_version"
+    implementation "androidx.compose.runtime:runtime:1.0.5"
-    implementation "androidx.compose.runtime:runtime-livedata:$compose_version"
+    implementation "androidx.compose.runtime:runtime-livedata:1.0.5"
-    implementation "androidx.compose.ui:ui:$compose_version"
+    implementation "androidx.compose.ui:ui:1.0.5"
-    implementation "androidx.compose.ui:ui-tooling:$compose_version"
+    implementation "androidx.compose.ui:ui-tooling:1.0.5"
-    implementation "androidx.compose.foundation:foundation:$compose_version"
+    implementation "androidx.compose.foundation:foundation:1.0.5"
-    implementation "androidx.compose.foundation:foundation-layout:$compose_version"
+    implementation "androidx.compose.foundation:foundation-layout:1.0.5"
-    implementation "androidx.compose.material:material:$compose_version"
+    implementation "androidx.compose.material:material:1.0.5"
     implementation "androidx.navigation:navigation-compose:2.4.0-beta02"
 
-    implementation "com.google.android.material:compose-theme-adapter:$compose_version"
+    implementation "com.google.android.material:compose-theme-adapter:1.1.0"
 }

app/src/main/java/de/sebse/fuplanner2/MainActivity.kt

@@ -9,11 +9,11 @@ import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
-import com.google.android.material.composethemeadapter.MdcTheme
 import de.sebse.fuplanner2.auth.AppAccounts
 import de.sebse.fuplanner2.database.AppDatabase
 import de.sebse.fuplanner2.database.Course
 import de.sebse.fuplanner2.database.User
+import de.sebse.fuplanner2.ui.theme.AppTheme
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 
@@ -25,7 +25,7 @@ class MainActivity() : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         activityViewModel = ViewModelProvider(this)[MainActivityViewModel::class.java]
         setContent {
-            MdcTheme {
+            AppTheme {
                 MainActivityComposable()
             }
         }

app/src/main/java/de/sebse/fuplanner2/database/AnnouncementDao.kt

@@ -1,8 +1,8 @@
 package de.sebse.fuplanner2.database
 
+import androidx.lifecycle.LiveData
 import androidx.paging.DataSource
 import androidx.room.*
-import de.sebse.fuplanner2.utils.console
 
 @Dao
 interface AnnouncementDao {
@@ -12,6 +12,9 @@ interface AnnouncementDao {
     @Query("SELECT * FROM announcement WHERE courseId = :courseId ORDER BY createdOn ASC")
     fun getAll2(courseId: Long): List<Announcement>
 
+    @Query("SELECT * FROM announcement WHERE courseId = :courseId ORDER BY createdOn ASC")
+    fun getAll3(courseId: Long): LiveData<List<Announcement>>
+
     @Query("SELECT * FROM announcement WHERE uid = :announcementId LIMIT 1")
     fun getAnnouncementById(announcementId: Long): Announcement
 
@@ -43,4 +46,4 @@ interface AnnouncementDao {
 
     @Delete
     fun delete(announcements: List<Announcement>)
-}
+}

app/src/main/java/de/sebse/fuplanner2/drawerLayout.kt

@@ -21,7 +21,7 @@ import androidx.navigation.NavHostController
 import androidx.navigation.NavOptions
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.rememberNavController
-import com.google.android.material.composethemeadapter.MdcTheme
+import de.sebse.fuplanner2.ui.theme.AppTheme
 import kotlinx.coroutines.launch
 
 
@@ -140,7 +140,7 @@ fun DrawerItems(currentRoute: String?, menu: List<NavLinks>, onItemClick: (route
 @Preview
 @Composable
 fun TopBarPreview() {
-    MdcTheme {
+    AppTheme {
         TopBar(
             title = "A title"
         ) { }
@@ -150,7 +150,7 @@ fun TopBarPreview() {
 @Preview
 @Composable
 fun DrawerPreview() {
-    MdcTheme {
+    AppTheme {
         Drawer(currentRoute = "courses", menu = screens) { }
     }
 }

app/src/main/java/de/sebse/fuplanner2/ui/courses/CoursesScreen.kt

@@ -31,14 +31,14 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewmodel.compose.LocalViewModelStoreOwner
-import com.google.android.material.composethemeadapter.MdcTheme
 import de.sebse.fuplanner2.MenuItem
 import de.sebse.fuplanner2.R
 import de.sebse.fuplanner2.Tools
 import de.sebse.fuplanner2.database.Course
-import de.sebse.fuplanner2.ui.details.CoursePreviewProvider
+import de.sebse.fuplanner2.ui.theme.AppTheme
+import de.sebse.fuplanner2.ui.tools.previews.CoursePreviewProvider
+import de.sebse.fuplanner2.ui.tools.viewmodels.CoursesViewModel
 import de.sebse.fuplanner2.utils.color.getColor
-import de.sebse.fuplanner2.viewmodels.CoursesViewModel
 
 @Composable
 fun CoursesScreen(tools: Tools) {
@@ -54,7 +54,7 @@ fun CoursesScreen(tools: Tools) {
     LaunchedEffect(title) {
         tools.setTitle(title)
     }
-    MdcTheme {
+    AppTheme {
         GroupedCourseList(groups = groups) { course ->
             course.uid?.let {
                 Log.d("WHERE TO GO", "${MenuItem.Courses.route}/$it")
@@ -163,7 +163,7 @@ fun CourseItemHint(icon: ImageVector, @StringRes imageAltRes: Int, text: String)
 @Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
 @Composable
 fun CourseListPreview() {
-    MdcTheme {
+    AppTheme {
         CourseList(
             CoursePreviewProvider().values.take(3).toList()
         ) { }
@@ -174,7 +174,7 @@ fun CourseListPreview() {
 @Preview
 @Composable
 fun CourseItemPreview(@PreviewParameter(CoursePreviewProvider::class, 1) course: Course) {
-    MdcTheme {
+    AppTheme {
         CourseItem(course) {}
     }
 }

app/src/main/java/de/sebse/fuplanner2/ui/details/CourseDetailsScreen.kt

@@ -12,27 +12,34 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.lifecycle.viewmodel.compose.viewModel
-import com.google.android.material.composethemeadapter.MdcTheme
 import de.sebse.fuplanner2.R
 import de.sebse.fuplanner2.Tools
+import de.sebse.fuplanner2.database.Announcement
+import de.sebse.fuplanner2.database.AppDatabase
 import de.sebse.fuplanner2.database.Course
+import de.sebse.fuplanner2.ui.details.components.AnnouncementItem
+import de.sebse.fuplanner2.ui.details.components.LecturerItem
 import de.sebse.fuplanner2.ui.details.components.QuickLinks
-import de.sebse.fuplanner2.viewmodels.DetailsViewModel
+import de.sebse.fuplanner2.ui.theme.AppTheme
-import de.sebse.fuplanner2.viewmodels.DetailsViewModelFactory
+import de.sebse.fuplanner2.ui.tools.previews.AnnouncementPreviewProvider
+import de.sebse.fuplanner2.ui.tools.previews.CoursePreviewProvider
+import de.sebse.fuplanner2.ui.tools.viewmodels.DetailsViewModel
+import de.sebse.fuplanner2.ui.tools.viewmodels.DetailsViewModelFactory
 
 @Composable
 fun CourseDetailsScreen(tools: Tools, id: Long) {
     val coursesViewModel: DetailsViewModel = viewModel(factory = DetailsViewModelFactory(id))
     val state = coursesViewModel.course.observeAsState()
+    val announce = AppDatabase.getInstance().announcementDao().getAll3(id).observeAsState()
     val title = state.value?.title
     LaunchedEffect(title) {
         title?.let { tools.setTitle(it) }
     }
-    CourseDetailsScreen(state.value, id)
+    CourseDetailsScreen(state.value, announce.value, id)
 }
 
 @Composable
-fun CourseDetailsScreen(course: Course?, id: Long) {
+fun CourseDetailsScreen(course: Course?, announcement: List<Announcement>?, id: Long) {
     Column {
         QuickLinks(courseId = id)
         Text(
@@ -44,6 +51,15 @@ fun CourseDetailsScreen(course: Course?, id: Long) {
                 LecturerItem(lecturer = it, courseTitle = course?.title ?: "")
             }
         }
+        Text(
+            text = stringResource(R.string.announcements),
+            style = MaterialTheme.typography.h5
+        )
+        LazyColumn {
+            items(announcement ?: listOf()) {
+                AnnouncementItem(it)
+            }
+        }
         // TODO: Add latest announcements, current assignments, upcoming events
     }
 }
@@ -51,7 +67,7 @@ fun CourseDetailsScreen(course: Course?, id: Long) {
 @Preview
 @Composable
 fun CourseDetailsScreenPreview(@PreviewParameter(CoursePreviewProvider::class, 1) course: Course) {
-    MdcTheme {
+    AppTheme {
-        CourseDetailsScreen(course, course.uid!!)
+        CourseDetailsScreen(course, AnnouncementPreviewProvider().values.take(3).toList(), course.uid!!)
     }
 }

app/src/main/java/de/sebse/fuplanner2/ui/details/components/AnnouncementItem.kt

@@ -0,0 +1,58 @@
+package de.sebse.fuplanner2.ui.details.components
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.Card
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.dimensionResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.tooling.preview.PreviewParameter
+import de.sebse.fuplanner2.R
+import de.sebse.fuplanner2.database.Announcement
+import de.sebse.fuplanner2.ui.theme.AppTheme
+import de.sebse.fuplanner2.ui.tools.previews.AnnouncementPreviewProvider
+import de.sebse.fuplanner2.utils.toDateTimeString
+
+@Composable
+fun AnnouncementItem(announcement: Announcement) {
+    AnnouncementItem(announcement) { }
+}
+
+@Composable
+fun AnnouncementItem(announcement: Announcement, click: () -> Unit) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(dimensionResource(R.dimen.card_view_margin)),
+        elevation = dimensionResource(R.dimen.card_view_elevation)
+    ) {
+        Column(
+            modifier = Modifier
+                .clickable(true, onClick = click)
+                .padding(dimensionResource(R.dimen.card_view_padding))
+        ) {
+            Text(
+                text = announcement.title ?: "Title",
+                style = MaterialTheme.typography.h6
+            )
+            Text(
+                text = announcement.createdOn.toDateTimeString(LocalContext.current) ?: "",
+                style = MaterialTheme.typography.subtitle1
+            )
+        }
+    }
+}
+
+@Preview
+@Composable
+fun AnnouncementItemPreview(@PreviewParameter(AnnouncementPreviewProvider::class, 5) announcement: Announcement) {
+    AppTheme {
+        AnnouncementItem(announcement)
+    }
+}

app/src/main/java/de/sebse/fuplanner2/ui/details/components/LecturerItem.kt

@@ -1,4 +1,4 @@
-package de.sebse.fuplanner2.ui.details
+package de.sebse.fuplanner2.ui.details.components
 
 import android.content.Context
 import android.content.Intent
@@ -21,9 +21,10 @@ import androidx.compose.ui.text.style.TextDecoration
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
-import com.google.android.material.composethemeadapter.MdcTheme
 import de.sebse.fuplanner2.R
 import de.sebse.fuplanner2.database.Lecturer
+import de.sebse.fuplanner2.ui.theme.AppTheme
+import de.sebse.fuplanner2.ui.tools.previews.LecturerPreviewProvider
 
 @Composable
 fun LecturerItem(lecturer: Lecturer, courseTitle: String) {
@@ -84,8 +85,8 @@ fun LecturerItem(lecturer: Lecturer, click: () -> Unit) {
 
 @Preview
 @Composable
-fun LecturerItemPreview(@PreviewParameter(LecturerPreviewProvider::class, 2) lecturer: Lecturer) {
+fun LecturerItemPreview(@PreviewParameter(LecturerPreviewProvider::class, 3) lecturer: Lecturer) {
-    MdcTheme {
+    AppTheme {
         LecturerItem(lecturer, "Course Name")
     }
 }

app/src/main/java/de/sebse/fuplanner2/ui/details/components/QuickLinks.kt

@@ -17,8 +17,8 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import com.google.android.material.composethemeadapter.MdcTheme
 import de.sebse.fuplanner2.R
+import de.sebse.fuplanner2.ui.theme.AppTheme
 
 
 data class QuickLinkProps(@StringRes val name: Int, val route: String)
@@ -64,7 +64,7 @@ fun QuickLinks(courseId: Long) {
 @Preview
 @Composable
 fun QuickLinksPreview() {
-    MdcTheme {
+    AppTheme {
         QuickLinks(3)
     }
 }

app/src/main/java/de/sebse/fuplanner2/ui/details_announcements/AnnouncementsViewModel.kt

@@ -1,18 +1,34 @@
 package de.sebse.fuplanner2.ui.details_announcements
 
+import android.content.Context
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.paging.LivePagedListBuilder
 import androidx.paging.PagedList
+import androidx.work.workDataOf
+import de.sebse.fuplanner2.auth.AppAccounts
 import de.sebse.fuplanner2.database.Announcement
 import de.sebse.fuplanner2.database.AppDatabase
+import de.sebse.fuplanner2.utils.enqueueOneTimeWork
+import de.sebse.fuplanner2.worker.AbstractAccountWorker
+import de.sebse.fuplanner2.worker.AnnouncementWorker
 
 class AnnouncementsViewModelFactory(private val courseId: Long): ViewModelProvider.NewInstanceFactory() {
     override fun <T : ViewModel> create(modelClass: Class<T>): T = AnnouncementsViewModel(courseId) as T
 }
 
-class AnnouncementsViewModel(courseId: Long) : ViewModel() {
+class AnnouncementsViewModel(private val courseId: Long) : ViewModel() {
     private val factory = AppDatabase.getInstance().announcementDao().getAll1(courseId)
+
+    fun refresh(ctx: Context) {
+        enqueueOneTimeWork<AnnouncementWorker>(ctx) {
+            it.setInputData(workDataOf(
+                AbstractAccountWorker.KEY_ACCOUNT_NAME to AppAccounts.getInstance().selectedAccount?.name,
+                AbstractAccountWorker.KEY_COURSE_ID to courseId
+            ))
+        }
+    }
+
     val events: LiveData<PagedList<Announcement>> = LivePagedListBuilder(factory, 50).build()
-}
+}

app/src/main/java/de/sebse/fuplanner2/ui/details_description/DescriptionFragment.kt

@@ -15,8 +15,8 @@ import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
 import de.sebse.fuplanner2.R
 import de.sebse.fuplanner2.databinding.FragmentDescriptionBinding
-import de.sebse.fuplanner2.viewmodels.DetailsViewModel
+import de.sebse.fuplanner2.ui.tools.viewmodels.DetailsViewModel
-import de.sebse.fuplanner2.viewmodels.DetailsViewModelFactory
+import de.sebse.fuplanner2.ui.tools.viewmodels.DetailsViewModelFactory
 
 
 class DescriptionFragment : Fragment() {

app/src/main/java/de/sebse/fuplanner2/ui/theme/Color.kt

@@ -0,0 +1,58 @@
+package de.sebse.fuplanner2.ui.theme
+import androidx.compose.ui.graphics.Color
+
+
+val md_theme_light_primary = Color(0xFF245fa7)
+val md_theme_light_onPrimary = Color(0xFFffffff)
+val md_theme_light_primaryContainer = Color(0xFFd4e3ff)
+val md_theme_light_onPrimaryContainer = Color(0xFF001b3d)
+val md_theme_light_secondary = Color(0xFF4a6800)
+val md_theme_light_onSecondary = Color(0xFFffffff)
+val md_theme_light_secondaryContainer = Color(0xFFbef43c)
+val md_theme_light_onSecondaryContainer = Color(0xFF131f00)
+val md_theme_light_tertiary = Color(0xFF8b5000)
+val md_theme_light_onTertiary = Color(0xFFffffff)
+val md_theme_light_tertiaryContainer = Color(0xFFffdcba)
+val md_theme_light_onTertiaryContainer = Color(0xFF2d1600)
+val md_theme_light_error = Color(0xFFba1b1b)
+val md_theme_light_errorContainer = Color(0xFFffdad4)
+val md_theme_light_onError = Color(0xFFffffff)
+val md_theme_light_onErrorContainer = Color(0xFF410001)
+val md_theme_light_background = Color(0xFFfdfbff)
+val md_theme_light_onBackground = Color(0xFF1b1b1d)
+val md_theme_light_surface = Color(0xFFfdfbff)
+val md_theme_light_onSurface = Color(0xFF1b1b1d)
+val md_theme_light_surfaceVariant = Color(0xFFe0e2eb)
+val md_theme_light_onSurfaceVariant = Color(0xFF44474f)
+val md_theme_light_outline = Color(0xFF74777f)
+val md_theme_light_inverseOnSurface = Color(0xFFf1f0f4)
+val md_theme_light_inverseSurface = Color(0xFF2f3033)
+
+val md_theme_dark_primary = Color(0xFFa6c8ff)
+val md_theme_dark_onPrimary = Color(0xFF003063)
+val md_theme_dark_primaryContainer = Color(0xFF00468b)
+val md_theme_dark_onPrimaryContainer = Color(0xFFd4e3ff)
+val md_theme_dark_secondary = Color(0xFFa3d719)
+val md_theme_dark_onSecondary = Color(0xFF253600)
+val md_theme_dark_secondaryContainer = Color(0xFF374e00)
+val md_theme_dark_onSecondaryContainer = Color(0xFFbef43c)
+val md_theme_dark_tertiary = Color(0xFFffb86b)
+val md_theme_dark_onTertiary = Color(0xFF4a2800)
+val md_theme_dark_tertiaryContainer = Color(0xFF6a3c00)
+val md_theme_dark_onTertiaryContainer = Color(0xFFffdcba)
+val md_theme_dark_error = Color(0xFFffb4a9)
+val md_theme_dark_errorContainer = Color(0xFF930006)
+val md_theme_dark_onError = Color(0xFF680003)
+val md_theme_dark_onErrorContainer = Color(0xFFffdad4)
+val md_theme_dark_background = Color(0xFF1b1b1d)
+val md_theme_dark_onBackground = Color(0xFFe3e2e6)
+val md_theme_dark_surface = Color(0xFF1b1b1d)
+val md_theme_dark_onSurface = Color(0xFFe3e2e6)
+val md_theme_dark_surfaceVariant = Color(0xFF44474f)
+val md_theme_dark_onSurfaceVariant = Color(0xFFc3c6cf)
+val md_theme_dark_outline = Color(0xFF8e919a)
+val md_theme_dark_inverseOnSurface = Color(0xFF1b1b1d)
+val md_theme_dark_inverseSurface = Color(0xFFe3e2e6)
+
+val seed = Color(0xFF003366)
+val error = Color(0xFFba1b1b)

app/src/main/java/de/sebse/fuplanner2/ui/theme/Theme.kt

@@ -0,0 +1,102 @@
+package de.sebse.fuplanner2.ui.theme
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.darkColors
+import androidx.compose.material.lightColors
+import androidx.compose.runtime.Composable
+
+// Comments are changes in Material 3 (Material You)
+
+//private val LightThemeColors = lightColorScheme(
+private val LightThemeColors = lightColors(
+	primary = md_theme_light_primary,
+	onPrimary = md_theme_light_onPrimary,
+	//primaryContainer = md_theme_light_primaryContainer,
+	//onPrimaryContainer = md_theme_light_onPrimaryContainer,
+	primaryVariant = md_theme_light_onPrimaryContainer,
+
+	secondary = md_theme_light_secondary,
+	onSecondary = md_theme_light_onSecondary,
+	//secondaryContainer = md_theme_light_secondaryContainer,
+	//onSecondaryContainer = md_theme_light_onSecondaryContainer,
+	secondaryVariant = md_theme_light_onSecondaryContainer,
+
+	//tertiary = md_theme_light_tertiary,
+	//onTertiary = md_theme_light_onTertiary,
+	//tertiaryContainer = md_theme_light_tertiaryContainer,
+	//onTertiaryContainer = md_theme_light_onTertiaryContainer,
+
+	error = md_theme_light_error,
+	onError = md_theme_light_onError,
+	//errorContainer = md_theme_light_errorContainer,
+	//onErrorContainer = md_theme_light_onErrorContainer,
+
+	background = md_theme_light_background,
+	onBackground = md_theme_light_onBackground,
+
+	surface = md_theme_light_surface,
+	onSurface = md_theme_light_onSurface,
+	//surfaceVariant = md_theme_light_surfaceVariant,
+	//onSurfaceVariant = md_theme_light_onSurfaceVariant,
+
+	//outline = md_theme_light_outline,
+	//inverseOnSurface = md_theme_light_inverseOnSurface,
+	//inverseSurface = md_theme_light_inverseSurface,
+) 
+
+//private val DarkThemeColors = darkColorScheme(
+private val DarkThemeColors = darkColors(
+
+	primary = md_theme_dark_primary,
+	onPrimary = md_theme_dark_onPrimary,
+	//primaryContainer = md_theme_dark_primaryContainer,
+	//onPrimaryContainer = md_theme_dark_onPrimaryContainer,
+	primaryVariant = md_theme_dark_onPrimaryContainer,
+
+	secondary = md_theme_dark_secondary,
+	onSecondary = md_theme_dark_onSecondary,
+	//secondaryContainer = md_theme_dark_secondaryContainer,
+	//onSecondaryContainer = md_theme_dark_onSecondaryContainer,
+	secondaryVariant = md_theme_dark_onSecondaryContainer,
+
+	//tertiary = md_theme_dark_tertiary,
+	//onTertiary = md_theme_dark_onTertiary,
+	//tertiaryContainer = md_theme_dark_tertiaryContainer,
+	//onTertiaryContainer = md_theme_dark_onTertiaryContainer,
+
+	error = md_theme_dark_error,
+	onError = md_theme_dark_onError,
+	//errorContainer = md_theme_dark_errorContainer,
+	//onErrorContainer = md_theme_dark_onErrorContainer,
+
+	background = md_theme_dark_background,
+	onBackground = md_theme_dark_onBackground,
+
+	surface = md_theme_dark_surface,
+	onSurface = md_theme_dark_onSurface,
+	//surfaceVariant = md_theme_dark_surfaceVariant,
+	//onSurfaceVariant = md_theme_dark_onSurfaceVariant,
+
+	//outline = md_theme_dark_outline,
+	//inverseOnSurface = md_theme_dark_inverseOnSurface,
+	//inverseSurface = md_theme_dark_inverseSurface,
+)
+@Composable
+fun AppTheme(
+	useDarkTheme: Boolean = isSystemInDarkTheme(),
+	content: @Composable() () -> Unit
+) {
+val colors = if (!useDarkTheme) {
+	LightThemeColors
+} else {
+	DarkThemeColors
+}
+
+MaterialTheme(
+	//colorScheme = colors,
+	colors = colors,
+	// typography = AppTypography,
+	content = content
+)
+}

app/src/main/java/de/sebse/fuplanner2/ui/theme/Type.kt

@@ -0,0 +1,117 @@
+package de.sebse.fuplanner2.ui.theme
+
+// Comments are changes in Material 3 (Material You)
+// Use default instead
+
+import androidx.compose.ui.text.font.FontFamily
+
+//Replace with your font locations
+val Roboto = FontFamily.Default
+
+/*val AppTypography = Typography(
+	displayLarge = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 57.sp,
+		lineHeight = 64.sp,
+		letterSpacing = -0.25.sp,
+	),
+	displayMedium = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 45.sp,
+		lineHeight = 52.sp,
+		letterSpacing = 0.sp,
+	),
+	displaySmall = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 36.sp,
+		lineHeight = 44.sp,
+		letterSpacing = 0.sp,
+	),
+	headlineLarge = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 32.sp,
+		lineHeight = 40.sp,
+		letterSpacing = 0.sp,
+	),
+	headlineMedium = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 28.sp,
+		lineHeight = 36.sp,
+		letterSpacing = 0.sp,
+	),
+	headlineSmall = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 24.sp,
+		lineHeight = 32.sp,
+		letterSpacing = 0.sp,
+	),
+	titleLarge = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 22.sp,
+		lineHeight = 28.sp,
+		letterSpacing = 0.sp,
+	),
+	titleMedium = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.Medium,
+		fontSize = 16.sp,
+		lineHeight = 24.sp,
+		letterSpacing = 0.1.sp,
+	),
+	titleSmall = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.Medium,
+		fontSize = 14.sp,
+		lineHeight = 20.sp,
+		letterSpacing = 0.1.sp,
+	),
+	labelLarge = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.Medium,
+		fontSize = 14.sp,
+		lineHeight = 20.sp,
+		letterSpacing = 0.1.sp,
+	),
+	bodyLarge = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 16.sp,
+		lineHeight = 24.sp,
+		letterSpacing = 0.5.sp,
+	),
+	bodyMedium = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 14.sp,
+		lineHeight = 20.sp,
+		letterSpacing = 0.25.sp,
+	),
+	bodySmall = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.W400,
+		fontSize = 12.sp,
+		lineHeight = 16.sp,
+		letterSpacing = 0.4.sp,
+	),
+	labelMedium = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.Medium,
+		fontSize = 12.sp,
+		lineHeight = 16.sp,
+		letterSpacing = 0.5.sp,
+	),
+	labelSmall = TextStyle(
+		fontFamily = Roboto,
+		fontWeight = FontWeight.Medium,
+		fontSize = 11.sp,
+		lineHeight = 16.sp,
+		letterSpacing = 0.5.sp,
+	),
+)*/

app/src/main/java/de/sebse/fuplanner2/ui/tools/previews/announcement.kt

@@ -0,0 +1,40 @@
+package de.sebse.fuplanner2.ui.tools.previews
+
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import de.sebse.fuplanner2.database.Announcement
+import de.sebse.fuplanner2.database.Attachment
+import de.sebse.fuplanner2.utils.Faker
+import de.sebse.fuplanner2.utils.getFaker
+
+class AnnouncementPreviewProvider(private val faker: Faker = getFaker()) : PreviewParameterProvider<Announcement> {
+    override val values = generateSequence { getItem() }
+
+    private fun getItem(): Announcement {
+        val title = faker.strings.title()
+        return Announcement(
+            faker.primitive.long(0, 100),
+            faker.primitive.long(0, 100),
+            faker.other.lastRefreshed(),
+            faker.strings.uuid(title),
+            title,
+            faker.strings.lorem(100, 1000),
+            faker.other.date(-20, -2),
+            "${faker.name.firstName()} ${faker.name.lastName()}",
+            AttachmentPreviewProvider(faker).values
+                .take(faker.primitive.int(1, 4))
+                .toList()
+        )
+    }
+}
+
+class AttachmentPreviewProvider(private val faker: Faker = getFaker()) : PreviewParameterProvider<Attachment> {
+    override val values = generateSequence { getItem() }
+
+    private fun getItem(): Attachment {
+        return Attachment(
+            faker.internet.url(),
+            faker.strings.title(),
+            faker.internet.mime()
+        )
+    }
+}

app/src/main/java/de/sebse/fuplanner2/ui/tools/previews/course.kt

@@ -1,4 +1,4 @@
-package de.sebse.fuplanner2.ui.details
+package de.sebse.fuplanner2.ui.tools.previews
 
 import androidx.compose.ui.tooling.preview.PreviewParameterProvider
 import de.sebse.fuplanner2.database.Course
@@ -7,12 +7,13 @@ import de.sebse.fuplanner2.utils.Faker
 import de.sebse.fuplanner2.utils.getFaker
 
 class LecturerPreviewProvider(private val faker: Faker = getFaker()) : PreviewParameterProvider<Lecturer> {
-    private val resp = faker.primitive.int(1, 2)
+    override val values = sequence {
-    override val values = (0..10).map {
+        yield(getItem(true))
-        getLecturer(it < resp)
+        yield(getItem(faker.primitive.bool(.5f)))
-    }.asSequence()
+        yieldAll(generateSequence { getItem(false) })
+    }
 
-    private fun getLecturer(isResponsible: Boolean): Lecturer {
+    private fun getItem(isResponsible: Boolean): Lecturer {
         val firstName = faker.name.firstName()
         val lastName = faker.name.lastName()
         return Lecturer(
@@ -25,17 +26,16 @@ class LecturerPreviewProvider(private val faker: Faker = getFaker()) : PreviewPa
 }
 
 class CoursePreviewProvider(private val faker: Faker = getFaker()) : PreviewParameterProvider<Course> {
-    var isSummer = false
+    private var isSummer = false
-    var year = 21
+    private var year = 21
-    override val values = (0..10).map {
+    override val values = sequence {
-        val res = getCourse()
+        yield(getItem())
         val reduce = faker.primitive.bool(.3f)
         year = if (reduce && isSummer) year-1 else year
         isSummer = if (reduce) !isSummer else isSummer
-        res
+    }
-    }.asSequence()
 
-    private fun getCourse(): Course {
+    private fun getItem(): Course {
         val diff = 1000L*60*60*24*5
         val title =
             "${faker.strings.title()} ${if (isSummer) "S" else "W"} ${if (isSummer) year else "$year/${year + 1}"}"

app/src/main/java/de/sebse/fuplanner2/ui/tools/viewmodels/CoursesViewModel.kt

@@ -1,4 +1,4 @@
-package de.sebse.fuplanner2.viewmodels
+package de.sebse.fuplanner2.ui.tools.viewmodels
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel

app/src/main/java/de/sebse/fuplanner2/ui/tools/viewmodels/DetailsViewModel.kt

@@ -1,4 +1,4 @@
-package de.sebse.fuplanner2.viewmodels
+package de.sebse.fuplanner2.ui.tools.viewmodels
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel

app/src/main/java/de/sebse/fuplanner2/utils/faking.kt

@@ -21,6 +21,9 @@ class Faker(randomSeed: Int) {
     val primitive: FakerPrimitive
         get() = FakerPrimitive(random)
 
+    val other: FakerOther
+        get() = FakerOther(random)
+
     val strings: FakerStrings
         get() = FakerStrings(random)
 }
@@ -29,6 +32,7 @@ class FakerName(private val random: Random) {
     fun lastName(): String {
         return LASTNAMES.random(random)
     }
+
     fun firstName(): String {
         return FIRSTNAMES.random(random)
     }
@@ -60,6 +64,19 @@ class FakerInternet(private val random: Random) {
             .replace(Regex("[^a-z0-9.]"), "")
         return "$user@fu-berlin.de"
     }
+
+    fun mime(): String {
+        return MIME_TYPES.random(random)
+    }
+
+    fun url(): String {
+        return "https://example.de/file"
+    }
+
+    companion object {
+        private val MIME_TYPES = listOf("application/pdf", "text/plain", "text/csv",
+            "application/msword")
+    }
 }
 
 class FakerPrimitive(private val random: Random) {
@@ -76,11 +93,31 @@ class FakerPrimitive(private val random: Random) {
     }
 }
 
+class FakerOther(private val random: Random) {
+    fun lastRefreshed(): Long {
+        return FakerPrimitive(random).long(
+            System.currentTimeMillis() - DIFF,
+            System.currentTimeMillis() + DIFF
+        )
+    }
+    fun date(startDay: Int, endDay: Int): Long {
+        return FakerPrimitive(random).long(
+            System.currentTimeMillis() + DAY * startDay,
+            System.currentTimeMillis() + DAY * endDay
+        )
+    }
+
+    companion object {
+        const val DAY = 1000L*60*60*24
+        const val DIFF = DAY*5
+    }
+}
+
 class FakerStrings(private val random: Random) {
     fun lorem(min: Int, max: Int): String {
         val length = (min..max).random(random)
         val loremArray = LOREM.split(" ").size
-        val n = ceil(length.toFloat() / loremArray).toInt()
+        val n = ceil(length.toFloat() / loremArray).toInt() + 1
         val repeatedArray = ("$LOREM ")
             .repeat(n)
             .trim()
@@ -109,7 +146,7 @@ class FakerStrings(private val random: Random) {
     }
     
     companion object {
-        val LOREM = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy "+
+        const val LOREM = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy "+
                 "eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam "+
                 "voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita "+
                 "kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem "+

app/src/main/java/de/sebse/fuplanner2/worker/CourseWorker.kt

@@ -12,7 +12,6 @@ import de.sebse.fuplanner2.database.Course
 import de.sebse.fuplanner2.database.User
 import de.sebse.fuplanner2.utils.Notifications
 import de.sebse.fuplanner2.utils.UpdateResult
-import de.sebse.fuplanner2.utils.console
 import de.sebse.fuplanner2.whiteboard.Whiteboard
 import de.sebse.fuplanner2.whiteboard.getCourse
 import de.sebse.fuplanner2.whiteboard.getCourses
@@ -39,6 +38,7 @@ class CourseWorker(context: Context, params: WorkerParameters) : AbstractAccount
         updates.added.forEach {
             if (it.isSummerSemester == latestSemester.semester && it.year == latestSemester.year) {
                 EventWorker.work(applicationContext, database, user, it)
+                AnnouncementWorker.work(applicationContext, database, user, it)
             }
         }
         Notifications.courseUpdates(updates, database,  applicationContext)

app/src/main/java/de/sebse/fuplanner2/worker/SyncWorker.kt

@@ -7,7 +7,6 @@ import de.sebse.fuplanner2.auth.AppAccounts
 import de.sebse.fuplanner2.database.AppDatabase
 import de.sebse.fuplanner2.database.Course
 import de.sebse.fuplanner2.utils.Notifications
-import de.sebse.fuplanner2.utils.Updatable
 import de.sebse.fuplanner2.utils.UpdateResult
 import de.sebse.fuplanner2.utils.mergeUpdatable
 
@@ -52,6 +51,7 @@ class SyncWorker(context: Context, params: WorkerParameters) : CoroutineWorker(c
                         courseCreations.forEach { course ->
                             if (course.isSummerSemester == latestSemester.semester && course.year == latestSemester.year) {
                                 EventWorker.work(applicationContext, database, it, course)
+                                AnnouncementWorker.work(applicationContext, database, it, course)
                             }
                         }
                         Notifications.courseUpdates(notifications, database,  applicationContext)

app/src/test/java/de/sebse/fuplanner2/ExampleUnitTest.kt

@@ -1,5 +1,6 @@
 package de.sebse.fuplanner2
 
+import de.sebse.fuplanner2.ui.tools.previews.AnnouncementPreviewProvider
 import de.sebse.fuplanner2.utils.getFaker
 import org.junit.Test
 
@@ -17,4 +18,9 @@ class FakerTest {
         getFaker().strings.lorem(100, 1000)
         getFaker().strings.lorem(100, 1000)
     }
+
+    @Test
+    fun announcement() {
+        AnnouncementPreviewProvider().values.take(10)
+    }
 }