feat: [#23] vue Labels (toutes les tâches associées à un label)

app/src/main/java/com/planify/mobile/ui/label/LabelScreen.kt

@@ -0,0 +1,46 @@
+package com.planify.mobile.ui.label
+
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Label
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.hilt.navigation.compose.hiltViewModel
+import com.planify.mobile.domain.model.Task
+import com.planify.mobile.ui.components.EmptyState
+import com.planify.mobile.ui.components.TaskRow
+
+@Composable
+fun LabelScreen(
+    labelId: String,
+    onTaskClick: (Task) -> Unit,
+    viewModel: LabelViewModel = hiltViewModel(),
+) {
+    LaunchedEffect(labelId) { viewModel.init(labelId) }
+
+    val tasks by viewModel.tasks.collectAsState()
+
+    if (tasks.isEmpty()) {
+        EmptyState(
+            icon = Icons.Outlined.Label,
+            title = "Aucune tâche",
+            subtitle = "Aucune tâche n'est associée à ce label",
+        )
+        return
+    }
+
+    LazyColumn(modifier = Modifier.fillMaxSize()) {
+        items(tasks, key = { it.id }) { task ->
+            TaskRow(
+                task = task,
+                onClick = { onTaskClick(task) },
+                onCheckedChange = { viewModel.toggleTask(task) },
+            )
+        }
+    }
+}

app/src/main/java/com/planify/mobile/ui/label/LabelViewModel.kt

@@ -0,0 +1,52 @@
+package com.planify.mobile.ui.label
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.planify.mobile.domain.model.Label
+import com.planify.mobile.domain.model.Task
+import com.planify.mobile.domain.repository.LabelRepository
+import com.planify.mobile.domain.repository.TaskRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class LabelViewModel @Inject constructor(
+    private val taskRepository: TaskRepository,
+    private val labelRepository: LabelRepository,
+) : ViewModel() {
+
+    private val _labelId = MutableStateFlow<String?>(null)
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    val label = _labelId.flatMapLatest { id ->
+        if (id == null) flowOf(null)
+        else labelRepository.getAllLabels().flatMapLatest { labels ->
+            flowOf(labels.find { it.id == id })
+        }
+    }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), null)
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    val tasks = label.flatMapLatest { lbl ->
+        if (lbl == null) flowOf(emptyList())
+        else taskRepository.getTasksByLabel(lbl.name)
+    }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
+
+    fun init(labelId: String) {
+        _labelId.value = labelId
+    }
+
+    fun toggleTask(task: Task) {
+        viewModelScope.launch { taskRepository.checkTask(task.id, !task.checked) }
+    }
+
+    fun deleteTask(task: Task) {
+        viewModelScope.launch { taskRepository.deleteTask(task.id) }
+    }
+}