Add create task lists button (WIP)

Implement delete task list button
Set theme colors
Add animations
Refactor main screen
Refactor task item with a view model
Put Edit Lists at the bottom of the Navigation Drawer

donextv2/src/main/java/com/wismna/geoffroy/donext/DonextApplication.kt

@@ -4,5 +4,4 @@ import android.app.Application
 import dagger.hilt.android.HiltAndroidApp
 
 @HiltAndroidApp
-class DonextApplication: Application() {
-}
+class DonextApplication: Application()

donextv2/src/main/java/com/wismna/geoffroy/donext/data/Mappers.kt

@@ -35,7 +35,7 @@ fun TaskListEntity.toDomain() = TaskList(
 )
 
 fun TaskList.toEntity() = TaskListEntity(
-    id = id,
+    id = id ?: 0,
     name = name,
     isDeleted = isDeleted,
     order = order

donextv2/src/main/java/com/wismna/geoffroy/donext/data/local/dao/TaskDao.kt

@@ -25,6 +25,6 @@ interface TaskDao {
     @Query("UPDATE tasks SET deleted = :deleted WHERE id = :taskId")
     suspend fun markTaskDeleted(taskId: Long, deleted: Boolean)
 
-    @Query("UPDATE tasks SET deleted = :deleted WHERE id = :taskListId")
+    @Query("UPDATE tasks SET deleted = :deleted WHERE task_list_id = :taskListId")
     suspend fun deleteAllTasksFromList(taskListId: Long, deleted: Boolean)
 }

donextv2/src/main/java/com/wismna/geoffroy/donext/data/local/dao/TaskListDao.kt

@@ -29,6 +29,7 @@ interface TaskListDao {
           ), 0) AS overdueCount
         FROM task_lists tl
         LEFT JOIN tasks t ON t.task_list_id = tl.id
+        WHERE tl.deleted = 0
         GROUP BY tl.id
     """)
     fun getTaskListsWithOverdue(nowMillis: Long): Flow<List<TaskListWithOverdue>>

donextv2/src/main/java/com/wismna/geoffroy/donext/domain/model/TaskList.kt

@@ -1,7 +1,7 @@
 package com.wismna.geoffroy.donext.domain.model
 
 data class TaskList(
-    val id: Long,
+    val id: Long? = null,
     val name: String,
     val isDeleted: Boolean,
     val order: Int

donextv2/src/main/java/com/wismna/geoffroy/donext/domain/usecase/AddTaskListUseCase.kt

@@ -0,0 +1,19 @@
+package com.wismna.geoffroy.donext.domain.usecase
+
+import com.wismna.geoffroy.donext.domain.model.TaskList
+import com.wismna.geoffroy.donext.domain.repository.TaskRepository
+import javax.inject.Inject
+
+class AddTaskListUseCase @Inject constructor(
+    private val repository: TaskRepository
+) {
+    suspend operator fun invoke(title: String, order: Int) {
+        repository.insertTaskList(
+            TaskList(
+                name = title,
+                order = order,
+                isDeleted = false
+            )
+        )
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/domain/usecase/DeleteTaskListUseCase.kt

@@ -0,0 +1,12 @@
+package com.wismna.geoffroy.donext.domain.usecase
+
+import com.wismna.geoffroy.donext.domain.repository.TaskRepository
+import javax.inject.Inject
+
+class DeleteTaskListUseCase@Inject constructor(
+    private val repository: TaskRepository
+) {
+    suspend operator fun invoke(taskListId: Long) {
+        repository.deleteTaskList(taskListId, true)
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/screen/MainScreen.kt

@@ -2,220 +2,231 @@
 
 package com.wismna.geoffroy.donext.presentation.screen
 
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.slideInHorizontally
+import androidx.compose.animation.slideOutHorizontally
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.ArrowBack
-import androidx.compose.material.icons.filled.Edit
-import androidx.compose.material.icons.filled.List
 import androidx.compose.material.icons.filled.Menu
-import androidx.compose.material3.Badge
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.DrawerValue
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.ExtendedFloatingActionButton
-import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.LocalContentColor
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalDrawerSheet
 import androidx.compose.material3.ModalNavigationDrawer
-import androidx.compose.material3.NavigationDrawerItem
-import androidx.compose.material3.NavigationDrawerItemDefaults
 import androidx.compose.material3.Scaffold
-import androidx.compose.material3.SegmentedButton
-import androidx.compose.material3.SegmentedButtonDefaults
-import androidx.compose.material3.SingleChoiceSegmentedButtonRow
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.rememberDrawerState
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
+import androidx.navigation.NavBackStackEntry
 import androidx.navigation.NavType
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navArgument
-import com.wismna.geoffroy.donext.domain.model.Priority
+import com.wismna.geoffroy.donext.domain.model.TaskListWithOverdue
 import com.wismna.geoffroy.donext.presentation.viewmodel.MainViewModel
+import com.wismna.geoffroy.donext.presentation.viewmodel.TaskListViewModel
 import com.wismna.geoffroy.donext.presentation.viewmodel.TaskViewModel
 import kotlinx.coroutines.launch
 
+sealed class AppDestination(
+    val route: String,
+    val title: String,
+    val showBackButton: Boolean = false,
+    val actions: @Composable (() -> Unit)? = null
+) {
+    data class TaskList(val taskListId: Long, val name: String) : AppDestination(
+        route = "taskList/$taskListId",
+        title = name,
+    )
+
+    object ManageLists : AppDestination(
+        route = "manageLists",
+        title = "Manage Lists",
+        showBackButton = true,
+        actions = { ManageListsActions() }
+    )
+}
+
 @Composable
 fun MainScreen(
     modifier: Modifier = Modifier,
-    viewModel: MainViewModel = hiltViewModel<MainViewModel>()) {
+    viewModel: MainViewModel = hiltViewModel()
+) {
     val navController = rememberNavController()
     var showBottomSheet by remember { mutableStateOf(false) }
+    val drawerState = rememberDrawerState(DrawerValue.Closed)
+    val scope = rememberCoroutineScope()
+    val taskViewModel: TaskViewModel = hiltViewModel()
 
     if (viewModel.isLoading) {
-        // Show loading or empty state
         Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
             CircularProgressIndicator()
         }
-    } else {
-        val taskViewModel: TaskViewModel = hiltViewModel()
-        val startDestination = viewModel.taskLists[0]
-        // TODO: get last opened tab from saved settings
-        var selectedDestination by rememberSaveable { mutableIntStateOf(0) }
-        val drawerState = rememberDrawerState(DrawerValue.Closed)
-        val scope = rememberCoroutineScope()
-        val navBackStackEntry by navController.currentBackStackEntryAsState()
-        val currentDestination = navBackStackEntry?.destination?.route
-        val isManageLists = currentDestination == "manageLists"
-
-        if (showBottomSheet) {
-            TaskBottomSheet(taskViewModel, { showBottomSheet = false })
+        return
     }
+
+    val firstListId = viewModel.taskLists.firstOrNull()?.id
+    if (showBottomSheet) {
+        TaskBottomSheet(taskViewModel) { showBottomSheet = false }
+    }
+
+    val navBackStackEntry by navController.currentBackStackEntryAsState()
+    val currentDestination = remember(navBackStackEntry, viewModel.taskLists) {
+        deriveDestination(navBackStackEntry, viewModel.taskLists)
+    }
+
     ModalNavigationDrawer(
         drawerContent = {
-                ModalDrawerSheet {
-                    Text(
-                        text = "Task Lists",
-                        style = MaterialTheme.typography.titleMedium,
-                        modifier = Modifier.padding(16.dp)
-                    )
-                    viewModel.taskLists.forEachIndexed { index, destination ->
-                        NavigationDrawerItem(
-                            label = { Text(destination.name) },
-                            icon = {
-                                Icon(
-                                    imageVector = Icons.Default.List,
-                                    contentDescription = destination.name
-                            )},
-                            selected = selectedDestination == index,
-                            onClick = {
+            MenuScreen (
+                taskLists = viewModel.taskLists,
+                currentDestination = currentDestination,
+                onNavigate = { route ->
                     scope.launch { drawerState.close() }
-                                navController.navigate(route = "taskList/${destination.id}")
-                                selectedDestination = index
-                            },
-                            badge = {
-                                if (destination.overdueCount > 0) {
-                                    Badge {
-                                        Text(destination.overdueCount.toString())
+                    navController.navigate(route) {
+                        //launchSingleTop = true
+                        restoreState = true
                     }
                 }
-                            },
-                            modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding)
             )
-                    }
-
-                    HorizontalDivider(modifier = Modifier)
-                    NavigationDrawerItem(
-                        label = { Text("Edit Lists") },
-                        icon = { Icon(Icons.Default.Edit, contentDescription = "Edit Lists") },
-                        selected = false,
-                        onClick = {
-                            scope.launch { drawerState.close() }
-                            navController.navigate("manageLists")
-                        },
-                        modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding)
-                    )
-                }
         },
         drawerState = drawerState
     ) {
         Scaffold(
-                modifier = modifier,
-                floatingActionButton = {
-                    if (!isManageLists) {
-                        AddNewTaskButton {
-                            val currentListId = viewModel.taskLists[selectedDestination].id
-                            taskViewModel.startNewTask(currentListId)
-                            showBottomSheet = true
-                        }
-                    }
-                }, topBar = {
+            modifier = modifier.background(MaterialTheme.colorScheme.primaryContainer),
+            containerColor = Color.Transparent,
+            topBar = {
                 TopAppBar(
-                        title = {
-                            Text(
-                                if (isManageLists) "Manage Lists"
-                                else viewModel.taskLists.getOrNull(selectedDestination)?.name ?: "Tasks"
-                            )
-                        },
+                    title = { Text(currentDestination.title) },
+                    colors = TopAppBarDefaults.topAppBarColors(
+                        containerColor = MaterialTheme.colorScheme.primaryContainer,
+                        titleContentColor = MaterialTheme.colorScheme.onPrimaryContainer,
+                        actionIconContentColor = MaterialTheme.colorScheme.onPrimaryContainer
+                    ),
                     navigationIcon = {
-                            if (isManageLists) {
+                        CompositionLocalProvider(LocalContentColor provides MaterialTheme.colorScheme.onPrimaryContainer) {
+                            if (currentDestination.showBackButton) {
                                 IconButton(onClick = { navController.popBackStack() }) {
                                     Icon(Icons.Default.ArrowBack, contentDescription = "Back")
                                 }
                             } else {
                                 IconButton(onClick = { scope.launch { drawerState.open() } }) {
-                                    Icon(Icons.Default.Menu, contentDescription = "Open navigation drawer")
-                                }
-                            }
-                        }
+                                    Icon(
+                                        Icons.Default.Menu,
+                                        contentDescription = "Open navigation drawer"
                                     )
-                }) { contentPadding ->
-                    NavHost(
-                        navController,
-                        startDestination = "taskList/${startDestination.id}"
+                                }
+                            }
+                        }
+                    },
+                    actions = { currentDestination.actions?.invoke() }
+                )
+            },
+            floatingActionButton = {
+                when (val dest = currentDestination) {
+                    is AppDestination.TaskList -> {
+                        TaskListFab(
+                            taskListId = dest.taskListId,
+                            showBottomSheet = { showBottomSheet = it }
+                        )
+                    }
+                    else -> null
+                }
+            }
+        ) { contentPadding ->
+            Surface(
+                modifier = Modifier
+                    .padding(top = contentPadding.calculateTopPadding())
+                    .fillMaxSize(),
+                shape = RoundedCornerShape(topStart = 16.dp, topEnd = 16.dp),
+                color = MaterialTheme.colorScheme.surfaceContainer,
             ) {
-                        viewModel.taskLists.forEach { destination ->
+                NavHost(
+                    navController = navController,
+                    startDestination = firstListId?.let { "taskList/$it" }
+                        ?: AppDestination.ManageLists.route,
+                    enterTransition = {
+                        slideInHorizontally(initialOffsetX = { fullWidth -> fullWidth }, animationSpec = tween(300))
+                    },
+                    exitTransition = {
+                        slideOutHorizontally(targetOffsetX = { fullWidth -> -fullWidth }, animationSpec = tween(300))
+                    },
+                    popEnterTransition = {
+                        slideInHorizontally(initialOffsetX = { fullWidth -> -fullWidth }, animationSpec = tween(300))
+                    },
+                    popExitTransition = {
+                        slideOutHorizontally(targetOffsetX = { fullWidth -> fullWidth }, animationSpec = tween(300))
+                    }
+                ) {
+                    viewModel.taskLists.forEach { list ->
                         composable(
                             route = "taskList/{taskListId}",
                             arguments = listOf(navArgument("taskListId") {
                                 type = NavType.LongType
                             })
-                            ) {
+                        ) { navBackStackEntry ->
+                            val viewModel: TaskListViewModel = hiltViewModel(navBackStackEntry)
                             TaskListScreen(
-                                    modifier = Modifier.padding(contentPadding),
+                                viewModel = viewModel,
                                 onTaskClick = { task ->
                                     taskViewModel.startEditTask(task)
                                     showBottomSheet = true
-                                    })
                                 }
-                        }
-                        composable("manageLists") {
-                            ManageListsScreen(
-                                modifier = Modifier.padding(contentPadding),
-                                onBackClick = { navController.popBackStack() }
                             )
                         }
                     }
+
+                    composable(AppDestination.ManageLists.route) {
+                        ManageListsScreen(modifier = Modifier)
+                    }
+                }
             }
         }
     }
 }
 
-@Composable
-fun AddNewTaskButton(onClick: () -> Unit) {
-    ExtendedFloatingActionButton(
-        onClick = onClick,
-        icon = { Icon(Icons.Filled.Add, "Create a task.") },
-        text = { Text(text = "Create a task") },
-    )
-}
+fun deriveDestination(
+    navBackStackEntry: NavBackStackEntry?,
+    taskLists: List<TaskListWithOverdue>
+): AppDestination {
+    val route = navBackStackEntry?.destination?.route
 
-@Composable
-fun SingleChoiceSegmentedButton(
-    value: Priority,
-    onValueChange: (Priority) -> Unit) {
-    val options = listOf(Priority.LOW.label, Priority.NORMAL.label, Priority.HIGH.label)
-
-    SingleChoiceSegmentedButtonRow {
-        options.forEachIndexed { index, label ->
-            SegmentedButton(
-                shape = SegmentedButtonDefaults.itemShape(
-                    index = index,
-                    count = options.size
-                ),
-                onClick = { onValueChange(Priority.fromValue(index)) },
-                selected = index == value.value,
-                label = { Text(label) }
-            )
+    return when {
+        route == AppDestination.ManageLists.route -> AppDestination.ManageLists
+        route?.startsWith("taskList/") == true || route == "taskList/{taskListId}" -> {
+            val idArg = navBackStackEntry.arguments?.getLong("taskListId")
+            val taskListId = idArg ?: route.substringAfter("taskList/", "").toLongOrNull()
+            val matching = taskLists.find { it.id == taskListId }
+            matching?.let { AppDestination.TaskList(it.id, it.name)  }
+                ?: taskLists.firstOrNull()?.let { AppDestination.TaskList(it.id, it.name) }
+                ?: AppDestination.ManageLists
+        }
+        else -> {
+            taskLists.firstOrNull()?.let { AppDestination.TaskList(it.id, it.name) }
+                ?: AppDestination.ManageLists
         }
     }
 }

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/screen/ManageListsScreen.kt

@@ -6,6 +6,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -13,37 +14,50 @@ import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.ListItem
+import androidx.compose.material3.LocalContentColor
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.ui.Modifier
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
-import com.wismna.geoffroy.donext.presentation.viewmodel.MainViewModel
+import com.wismna.geoffroy.donext.presentation.viewmodel.ManageListsViewModel
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun ManageListsScreen(
     modifier: Modifier,
-    viewModel: MainViewModel = hiltViewModel(),
-    onBackClick: () -> Unit
+    viewModel: ManageListsViewModel = hiltViewModel()
 ) {
     val lists = viewModel.taskLists
 
     LazyColumn(modifier = modifier.fillMaxWidth().padding()) {
-        itemsIndexed(lists, key = { _, list -> list.id }) { index, list ->
+        itemsIndexed(lists, key = { _, list -> list.id!! }) { index, list ->
             ListItem(
                 headlineContent = { Text(list.name) },
                 trailingContent = {
                     Row {
+                        CompositionLocalProvider(LocalContentColor provides MaterialTheme.colorScheme.onPrimaryContainer) {
                             IconButton(onClick = { /* TODO: edit list */ }) {
                                 Icon(Icons.Default.Edit, contentDescription = "Edit")
                             }
-                        IconButton(onClick = { /* TODO: delete list */ }) {
+                            IconButton(onClick = { viewModel.deleteTaskList(list.id!!) }) {
                                 Icon(Icons.Default.Delete, contentDescription = "Delete")
                             }
                         }
                     }
+                }
             )
             HorizontalDivider()
         }
     }
 }
+
+@Composable
+fun ManageListsActions(
+    viewModel: ManageListsViewModel = hiltViewModel()
+) {
+    IconButton(onClick = { viewModel.createTaskList("Test", 1) }) {
+        Icon(Icons.Default.Add, contentDescription = "Add List")
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/screen/MenuScreen.kt

@@ -0,0 +1,74 @@
+package com.wismna.geoffroy.donext.presentation.screen
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.List
+import androidx.compose.material3.Badge
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalDrawerSheet
+import androidx.compose.material3.NavigationDrawerItem
+import androidx.compose.material3.NavigationDrawerItemDefaults
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.wismna.geoffroy.donext.domain.model.TaskListWithOverdue
+
+@Composable
+fun MenuScreen(
+    taskLists: List<TaskListWithOverdue>,
+    currentDestination: AppDestination,
+    onNavigate: (String) -> Unit
+) {
+    ModalDrawerSheet(
+        drawerContainerColor = MaterialTheme.colorScheme.surfaceVariant,
+        drawerContentColor = MaterialTheme.colorScheme.onSurfaceVariant
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxHeight()
+                .padding(vertical = 8.dp),
+            verticalArrangement = Arrangement.SpaceBetween
+        ) {
+            Column {
+                Text(
+                    text = "Task Lists",
+                    style = MaterialTheme.typography.titleMedium,
+                    modifier = Modifier.padding(16.dp)
+                )
+                taskLists.forEach { list ->
+                    NavigationDrawerItem(
+                        label = { Text(list.name) },
+                        icon = { Icon(Icons.Default.List, contentDescription = list.name) },
+                        selected = currentDestination is AppDestination.TaskList &&
+                                currentDestination.taskListId == list.id,
+                        onClick = { onNavigate("taskList/${list.id}") },
+                        badge = {
+                            if (list.overdueCount > 0) {
+                                Badge { Text(list.overdueCount.toString()) }
+                            }
+                        },
+                        modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding)
+                    )
+                }
+            }
+
+            Column {
+                HorizontalDivider()
+                NavigationDrawerItem(
+                    label = { Text("Edit Lists") },
+                    icon = { Icon(Icons.Default.Edit, contentDescription = "Edit Lists") },
+                    selected = currentDestination is AppDestination.ManageLists,
+                    onClick = { onNavigate(AppDestination.ManageLists.route) },
+                    modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding)
+                )
+            }
+        }
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/screen/TaskItemScreen.kt

@@ -0,0 +1,132 @@
+package com.wismna.geoffroy.donext.presentation.screen
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.shrinkVertically
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.IntrinsicSize
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Checkbox
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextDecoration
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import com.wismna.geoffroy.donext.domain.model.Priority
+import com.wismna.geoffroy.donext.presentation.viewmodel.TaskItemViewModel
+
+@Composable
+fun TaskItemScreen(
+    modifier: Modifier = Modifier,
+    viewModel: TaskItemViewModel,
+    onClick: () -> Unit,
+    onToggleDone: (Boolean) -> Unit
+) {
+    val baseStyle = MaterialTheme.typography.bodyLarge.copy(
+        fontWeight = when (viewModel.priority) {
+            Priority.HIGH -> FontWeight.Bold
+            Priority.NORMAL -> FontWeight.Normal
+            Priority.LOW -> FontWeight.Normal
+        },
+        color = when (viewModel.priority) {
+            Priority.HIGH -> MaterialTheme.colorScheme.onSurface
+            Priority.NORMAL -> MaterialTheme.colorScheme.onSurface
+            Priority.LOW -> MaterialTheme.colorScheme.onSurfaceVariant
+        },
+        textDecoration = if (viewModel.isDone) TextDecoration.LineThrough else TextDecoration.None)
+
+    Row(
+        modifier = modifier
+            .fillMaxWidth()
+            .clickable { onClick() }
+            .padding(8.dp)
+            .alpha(if (viewModel.isDone || viewModel.priority == Priority.LOW) 0.5f else 1f),
+        verticalAlignment = Alignment.CenterVertically // centers checkbox + content
+    ) {
+        // Done checkbox
+        Checkbox(
+            checked = viewModel.isDone,
+            onCheckedChange = onToggleDone,
+            modifier = Modifier
+                .size(40.dp)
+                .clip(CircleShape)
+        )
+
+        Box(
+            modifier = Modifier
+                .weight(1f)
+                .padding(start = 8.dp)
+                .height(IntrinsicSize.Min) // shrink to fit title/description
+        ) {
+            // Title
+            Text(
+                text = viewModel.name,
+                style = baseStyle,
+                modifier = Modifier
+                    .align(
+                        if (viewModel.description.isNullOrBlank()) Alignment.CenterStart
+                        else Alignment.TopStart
+                    )
+            )
+
+            // Due date badge
+            viewModel.dueDateText?.let { dueMillis ->
+                Box(
+                    modifier = Modifier
+                        .align(
+                            if (viewModel.description.isNullOrBlank()) Alignment.CenterEnd
+                            else Alignment.TopEnd
+                        )
+                        .background(
+                            color = if (viewModel.isOverdue) MaterialTheme.colorScheme.error
+                            else MaterialTheme.colorScheme.primary.copy(alpha = 0.1f),
+                            shape = RoundedCornerShape(12.dp)
+                        )
+                        .padding(horizontal = 8.dp, vertical = 2.dp)
+                ) {
+                    Text(
+                        text = viewModel.dueDateText,
+                        style = MaterialTheme.typography.bodySmall,
+                        color = if (viewModel.isOverdue) Color.White else MaterialTheme.colorScheme.primary
+                    )
+                }
+            }
+
+            // Optional description
+            this@Row.AnimatedVisibility(
+                visible = !viewModel.description.isNullOrBlank(),
+                modifier = Modifier.align(Alignment.BottomStart),
+                enter = fadeIn() + expandVertically(),
+                exit = fadeOut() + shrinkVertically()
+            ) {
+                Text(
+                    text = viewModel.description!!,
+                    style = baseStyle.copy(fontSize = MaterialTheme.typography.bodyMedium.fontSize),
+                    maxLines = 3,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier
+                        .align(Alignment.BottomStart)
+                        .padding(top = 20.dp) // spacing below title
+                )
+            }
+
+        }
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/screen/TaskListScreen.kt

@@ -1,55 +1,38 @@
 package com.wismna.geoffroy.donext.presentation.screen
 
-import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
-import androidx.compose.foundation.shape.CircleShape
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Checkbox
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material3.ExtendedFloatingActionButton
 import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.alpha
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextDecoration
-import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
-import com.wismna.geoffroy.donext.domain.model.Priority
 import com.wismna.geoffroy.donext.domain.model.Task
+import com.wismna.geoffroy.donext.presentation.viewmodel.TaskItemViewModel
 import com.wismna.geoffroy.donext.presentation.viewmodel.TaskListViewModel
-import java.time.Instant
-import java.time.LocalDate
-import java.time.ZoneOffset
-import java.time.format.DateTimeFormatter
-import java.time.format.FormatStyle
-import java.time.format.TextStyle
-import java.util.Locale
+import com.wismna.geoffroy.donext.presentation.viewmodel.TaskViewModel
 
 @Composable
-fun TaskListScreen(modifier: Modifier = Modifier, viewModel: TaskListViewModel = hiltViewModel<TaskListViewModel>(), onTaskClick: (Task) -> Unit) {
+fun TaskListScreen(
+    modifier: Modifier = Modifier,
+    viewModel: TaskListViewModel = hiltViewModel<TaskListViewModel>(),
+    onTaskClick: (Task) -> Unit) {
     val tasks = viewModel.tasks
 
     LazyColumn(
         modifier = modifier.fillMaxSize().padding()
     ) {
-        itemsIndexed(tasks, key = { _, task -> task.id!! }) { index, task ->
+        itemsIndexed(tasks, key = { id, task -> task.id!! }) { index, task ->
             if (index > 0) {
                 val prev = tasks[index - 1]
 
@@ -70,8 +53,9 @@ fun TaskListScreen(modifier: Modifier = Modifier, viewModel: TaskListViewModel =
                 }
             }
 
-            TaskItem(
-                task = task,
+            TaskItemScreen(
+                modifier = Modifier.animateItem(),
+                viewModel = TaskItemViewModel(task),
                 onClick = { onTaskClick(task) },
                 onToggleDone = { isChecked ->
                     viewModel.updateTaskDone(task.id!!, isChecked)
@@ -82,104 +66,17 @@ fun TaskListScreen(modifier: Modifier = Modifier, viewModel: TaskListViewModel =
 }
 
 @Composable
-fun TaskItem(
-    task: Task,
-    onClick: () -> Unit,
-    onToggleDone: (Boolean) -> Unit
+fun TaskListFab(
+    taskListId: Long,
+    viewModel: TaskViewModel = hiltViewModel(),
+    showBottomSheet: (Boolean) -> Unit = {}
 ) {
-    val today = remember {
-        LocalDate.now(ZoneOffset.UTC)
-    }
-    val isOverdue = task.dueDate?.let { millis ->
-        val dueDate = Instant.ofEpochMilli(millis)
-            .atZone(ZoneOffset.UTC)
-            .toLocalDate()
-        dueDate.isBefore(today)
-    } ?: false
-
-    val baseStyle = MaterialTheme.typography.bodyLarge.copy(
-    fontWeight = when (task.priority) {
-        Priority.HIGH -> FontWeight.Bold
-        Priority.NORMAL -> FontWeight.Normal
-        Priority.LOW -> FontWeight.Normal
+    ExtendedFloatingActionButton(
+        onClick = {
+            viewModel.startNewTask(taskListId)
+            showBottomSheet(true)
         },
-    color = when (task.priority) {
-        Priority.HIGH -> MaterialTheme.colorScheme.onSurface
-        Priority.NORMAL -> MaterialTheme.colorScheme.onSurface
-        Priority.LOW -> MaterialTheme.colorScheme.onSurfaceVariant
-    },
-    textDecoration = if (task.isDone) TextDecoration.LineThrough else TextDecoration.None)
-
-    val dueText = task.dueDate?.let { formatTaskDueDate(it) }
-    Row(
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable { onClick() }
-            .padding(8.dp)
-            .alpha(if (task.isDone || task.priority == Priority.LOW) 0.5f else 1f),
-    ) {
-        Checkbox(
-            checked = task.isDone,
-            onCheckedChange = onToggleDone,
-            modifier = Modifier
-                .size(40.dp)
-                .clip(CircleShape)
-        )
-
-        Column {
-            Row(
-                modifier = Modifier.fillMaxWidth(),
-                horizontalArrangement = Arrangement.SpaceBetween) {
-                Text(
-                    text = task.name,
-                    style = baseStyle
-                )
-                // Due date badge
-                dueText?.let {
-                    Box(
-                        modifier = Modifier
-                            .background(
-                                color = if (isOverdue) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary.copy(
-                                    alpha = 0.1f
-                                ),
-                                shape = RoundedCornerShape(12.dp)
-                            )
-                            .padding(horizontal = 8.dp, vertical = 2.dp)
-                    ) {
-                        Text(
-                            text = it,
-                            style = MaterialTheme.typography.bodySmall,
-                            color = if (isOverdue) Color.White else MaterialTheme.colorScheme.primary
+        icon = { Icon(Icons.Filled.Add, "Create a task.") },
+        text = { Text("Create a task") },
     )
 }
-                }
-            }
-
-            if (!task.description.isNullOrBlank()) {
-                Text(
-                    text = task.description,
-                    style = baseStyle.copy(
-                        fontSize = MaterialTheme.typography.bodyMedium.fontSize
-                    ),
-                    maxLines = 3,
-                    overflow = TextOverflow.Ellipsis
-                )
-            }
-        }
-    }
-}
-
-private fun formatTaskDueDate(dueMillis: Long): String {
-    val today = LocalDate.now()
-    val dueDate = Instant.ofEpochMilli(dueMillis).atZone(ZoneOffset.UTC).toLocalDate()
-
-    return when {
-        dueDate.isEqual(today) -> "Today"
-        dueDate.isEqual(today.plusDays(1)) -> "Tomorrow"
-        dueDate.isEqual(today.minusDays(1)) -> "Yesterday"
-        dueDate.isAfter(today) && dueDate.isBefore(today.plusDays(7)) ->
-            dueDate.dayOfWeek.getDisplayName(TextStyle.SHORT, Locale.getDefault())
-        else ->
-            dueDate.format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(Locale.getDefault()))
-    }
-}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/screen/TaskScreen.kt

@@ -20,7 +20,10 @@ import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.SegmentedButton
+import androidx.compose.material3.SegmentedButtonDefaults
 import androidx.compose.material3.SelectableDates
+import androidx.compose.material3.SingleChoiceSegmentedButtonRow
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.material3.rememberDatePickerState
@@ -35,6 +38,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.unit.dp
+import com.wismna.geoffroy.donext.domain.model.Priority
 import com.wismna.geoffroy.donext.presentation.viewmodel.TaskViewModel
 import java.time.Instant
 import java.time.LocalDate
@@ -192,3 +196,24 @@ fun TaskBottomSheet(
         }
     }
 }
+
+@Composable
+fun SingleChoiceSegmentedButton(
+    value: Priority,
+    onValueChange: (Priority) -> Unit) {
+    val options = listOf(Priority.LOW.label, Priority.NORMAL.label, Priority.HIGH.label)
+
+    SingleChoiceSegmentedButtonRow {
+        options.forEachIndexed { index, label ->
+            SegmentedButton(
+                shape = SegmentedButtonDefaults.itemShape(
+                    index = index,
+                    count = options.size
+                ),
+                onClick = { onValueChange(Priority.fromValue(index)) },
+                selected = index == value.value,
+                label = { Text(label) }
+            )
+        }
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/viewmodel/MainViewModel.kt

@@ -12,27 +12,6 @@ import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import javax.inject.Inject
 
-sealed class AppDestination(
-    val route: String,
-    val title: String,
-    val showFab: Boolean = false,
-    val showBackButton: Boolean = false
-) {
-    data class TaskList(val taskListId: Long, val name: String) : AppDestination(
-        route = "taskList/$taskListId",
-        title = name,
-        showFab = true,
-        showBackButton = false
-    )
-
-    object ManageLists : AppDestination(
-        route = "manageLists",
-        title = "Manage Lists",
-        showFab = false,
-        showBackButton = true
-    )
-}
-
 @HiltViewModel
 class MainViewModel @Inject constructor(
     getTaskListsWithOverdue: GetTaskListsWithOverdueUseCase
@@ -40,9 +19,9 @@ class MainViewModel @Inject constructor(
 
     var taskLists by mutableStateOf<List<TaskListWithOverdue>>(emptyList())
         private set
-    val destinations: List<AppDestination>
+    /*val destinations: List<AppDestination>
         get() = taskLists.map { AppDestination.TaskList(it.id, it.name) } +
-                AppDestination.ManageLists
+                AppDestination.ManageLists*/
     var isLoading by mutableStateOf(true)
         private set
 

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/viewmodel/ManageListsViewModel.kt

@@ -0,0 +1,46 @@
+package com.wismna.geoffroy.donext.presentation.viewmodel
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.wismna.geoffroy.donext.domain.model.TaskList
+import com.wismna.geoffroy.donext.domain.usecase.AddTaskListUseCase
+import com.wismna.geoffroy.donext.domain.usecase.DeleteTaskListUseCase
+import com.wismna.geoffroy.donext.domain.usecase.GetTaskListsUseCase
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class ManageListsViewModel @Inject constructor(
+    getTaskListsUseCase: GetTaskListsUseCase,
+    private val addTaskListUseCase: AddTaskListUseCase,
+    private val deleteTaskListUseCase: DeleteTaskListUseCase
+) : ViewModel() {
+
+    var taskLists by mutableStateOf<List<TaskList>>(emptyList())
+        private set
+
+    init {
+        getTaskListsUseCase()
+            .onEach { lists ->
+                taskLists = lists
+            }
+            .launchIn(viewModelScope)
+    }
+
+    fun createTaskList(title: String, order: Int) {
+        viewModelScope.launch {
+            addTaskListUseCase(title, order)
+        }
+    }
+    fun deleteTaskList(taskId: Long) {
+        viewModelScope.launch {
+            deleteTaskListUseCase(taskId)
+        }
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/viewmodel/TaskItemViewModel.kt

@@ -0,0 +1,44 @@
+package com.wismna.geoffroy.donext.presentation.viewmodel
+
+import com.wismna.geoffroy.donext.domain.model.Priority
+import com.wismna.geoffroy.donext.domain.model.Task
+import java.time.Instant
+import java.time.LocalDate
+import java.time.ZoneOffset
+import java.time.format.DateTimeFormatter
+import java.time.format.FormatStyle
+import java.time.format.TextStyle
+import java.util.Locale
+
+class TaskItemViewModel(task: Task) {
+    val id: Long = task.id!!
+    val name: String = task.name
+    val description: String? = task.description
+    val isDone: Boolean = task.isDone
+    val priority: Priority = task.priority
+
+    val today: LocalDate = LocalDate.now(ZoneOffset.UTC)
+
+    val isOverdue: Boolean = task.dueDate?.let { millis ->
+        val dueDate = Instant.ofEpochMilli(millis)
+            .atZone(ZoneOffset.UTC)
+            .toLocalDate()
+        dueDate.isBefore(today)
+    } ?: false
+
+    val dueDateText: String? = task.dueDate?.let { formatDueDate(it) }
+
+    private fun formatDueDate(dueMillis: Long): String {
+        val dueDate = Instant.ofEpochMilli(dueMillis).atZone(ZoneOffset.UTC).toLocalDate()
+
+        return when {
+            dueDate.isEqual(today) -> "Today"
+            dueDate.isEqual(today.plusDays(1)) -> "Tomorrow"
+            dueDate.isEqual(today.minusDays(1)) -> "Yesterday"
+            dueDate.isAfter(today) && dueDate.isBefore(today.plusDays(7)) ->
+                dueDate.dayOfWeek.getDisplayName(TextStyle.SHORT, Locale.getDefault())
+            else ->
+                dueDate.format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(Locale.getDefault()))
+        }
+    }
+}

donextv2/src/main/java/com/wismna/geoffroy/donext/presentation/viewmodel/TaskListViewModel.kt

@@ -24,7 +24,6 @@ class TaskListViewModel @Inject constructor(
 
     var tasks by mutableStateOf<List<Task>>(emptyList())
         private set
-
     var isLoading by mutableStateOf(true)
         private set