feat(ui): integrate teacher mode into AppRoot and Home

app/src/main/java/agzam/vyatsu/AppRoot.kt

@@ -6,6 +6,7 @@ import agzam.vyatsu.ui.picker.PickerScreen
 import agzam.vyatsu.ui.picker.PickerViewModel
 import agzam.vyatsu.ui.schedule.ScheduleViewModel
 import agzam.vyatsu.ui.settings.UpdateViewModel
+import agzam.vyatsu.ui.teacher.TeacherScheduleViewModel
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -23,9 +24,11 @@ fun AppRoot() {
     val container = app.container
 
     val scheduleViewModel: ScheduleViewModel = viewModel(factory = scheduleFactory(container))
+    val teacherScheduleViewModel: TeacherScheduleViewModel = viewModel(factory = teacherScheduleFactory(container))
     val updateViewModel: UpdateViewModel = viewModel(factory = updateFactory(container))
 
     val state by scheduleViewModel.uiState.collectAsState()
+    val teacherState by teacherScheduleViewModel.uiState.collectAsState()
     val showFirstRunDialog by updateViewModel.showFirstRunDialog.collectAsState()
 
     if (showFirstRunDialog) {
@@ -51,19 +54,21 @@ fun AppRoot() {
         )
     }
 
-    if (state.noGroup) {
+    if (state.noGroup && teacherState.noTeacher) {
         val pickerViewModel: PickerViewModel = viewModel(factory = pickerFactory(container))
         PickerScreen(
             viewModel = pickerViewModel,
             onGroupPicked = { group -> scheduleViewModel.selectGroup(group.id) },
-            onTeacherPicked = { }
+            onTeacherPicked = { teacher -> teacherScheduleViewModel.selectTeacher(teacher.name) }
         )
         return
     }
     HomeScreen(
         scheduleViewModel = scheduleViewModel,
+        teacherScheduleViewModel = teacherScheduleViewModel,
         updateViewModel = updateViewModel,
-        onSwitchGroup = { scheduleViewModel.switchGroup() }
+        onSwitchGroup = { scheduleViewModel.switchGroup() },
+        onSwitchTeacher = { teacherScheduleViewModel.switchTeacher() }
     )
 }
 
@@ -73,6 +78,7 @@ private class SimpleFactory<T : ViewModel>(private val create: () -> T) : ViewMo
 }
 
 private fun scheduleFactory(c: AppContainer): ViewModelProvider.Factory = SimpleFactory { ScheduleViewModel(c.scheduleRepository, c.preferencesRepository, c.groupRepository) }
+private fun teacherScheduleFactory(c: AppContainer): ViewModelProvider.Factory = SimpleFactory { TeacherScheduleViewModel(c.teacherScheduleRepository, c.preferencesRepository) }
 private fun pickerFactory(c: AppContainer): ViewModelProvider.Factory = SimpleFactory {
     PickerViewModel(
         c.groupRepository,

app/src/main/java/agzam/vyatsu/ui/home/HomeScreen.kt

@@ -6,6 +6,8 @@ import agzam.vyatsu.ui.schedule.ScheduleScreen
 import agzam.vyatsu.ui.schedule.ScheduleViewModel
 import agzam.vyatsu.ui.settings.SettingsScreen
 import agzam.vyatsu.ui.settings.UpdateViewModel
+import agzam.vyatsu.ui.teacher.TeacherScheduleScreen
+import agzam.vyatsu.ui.teacher.TeacherScheduleViewModel
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
@@ -19,6 +21,7 @@ import androidx.compose.material3.NavigationBarItem
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.saveable.rememberSaveable
@@ -35,10 +38,13 @@ private enum class HomeTab(val label: String) {
 @Composable
 fun HomeScreen(
     scheduleViewModel: ScheduleViewModel,
+    teacherScheduleViewModel: TeacherScheduleViewModel,
     updateViewModel: UpdateViewModel,
-    onSwitchGroup: () -> Unit
+    onSwitchGroup: () -> Unit,
+    onSwitchTeacher: () -> Unit
 ) {
     var tab by rememberSaveable { mutableStateOf(HomeTab.SCHEDULE) }
+    val teacherState by teacherScheduleViewModel.uiState.collectAsState()
 
     Scaffold(
         bottomBar = {
@@ -70,7 +76,14 @@ fun HomeScreen(
                 .padding(innerPadding)
         ) {
             when (tab) {
-                HomeTab.SCHEDULE -> ScheduleScreen(viewModel = scheduleViewModel, onSwitchGroup = onSwitchGroup)
+                HomeTab.SCHEDULE -> if (teacherState.teacherName != null) {
+                    TeacherScheduleScreen(
+                        viewModel = teacherScheduleViewModel,
+                        onSwitchTeacher = onSwitchTeacher
+                    )
+                } else {
+                    ScheduleScreen(viewModel = scheduleViewModel, onSwitchGroup = onSwitchGroup)
+                }
                 HomeTab.CALLS -> CallsScreen()
                 HomeTab.BUILDINGS -> BuildingsScreen()
                 HomeTab.SETTINGS -> SettingsScreen(viewModel = updateViewModel)