Implemented Task Pause and Resume

2026-03-04 07:12:00 +08:00
parent 81bc618eee
commit 94088a8796
3 changed files with 327 additions and 17 deletions
@@ -54,6 +54,12 @@ String _uiFingerprint(TaskActivityLog log) {
    return '${log.taskId}|${log.actionType}';
  }

+  // Pause/resume events are sequence-sensitive for execution-time calculations.
+  // Keep each row distinct to avoid collapsing multiple toggles in the same minute.
+  if (log.actionType == 'paused' || log.actionType == 'resumed') {
+    return '${log.taskId}|${log.id}';
+  }
+
  // The UI displays time as "MMM dd, yyyy hh:mm AA". Grouping by year, month,
  // day, hour, and minute ensures we collapse duplicates that look identical on screen.
  final visualMinute =
@@ -610,6 +616,92 @@ class TasksController {
  // SupabaseClient instance.
  final dynamic _client;

+  Future<bool> _isTaskCurrentlyPaused(String taskId) async {
+    try {
+      final rows = await _client
+          .from('task_activity_logs')
+          .select('action_type, created_at')
+          .eq('task_id', taskId)
+          .inFilter('action_type', [
+            'started',
+            'paused',
+            'resumed',
+            'completed',
+            'cancelled',
+          ])
+          .order('created_at', ascending: false)
+          .limit(1);
+      if (rows is List && rows.isNotEmpty) {
+        final latest = rows.first;
+        final action = latest['action_type']?.toString() ?? '';
+        return action == 'paused';
+      }
+    } catch (_) {}
+    return false;
+  }
+
+  Future<void> pauseTask({required String taskId}) async {
+    final row = await _client
+        .from('tasks')
+        .select('status')
+        .eq('id', taskId)
+        .maybeSingle();
+    if (row is! Map<String, dynamic>) {
+      throw Exception('Task not found');
+    }
+
+    final status = (row['status'] as String?)?.trim() ?? '';
+    if (status == 'completed' || status == 'cancelled' || status == 'closed') {
+      throw Exception('Cannot pause a terminal task.');
+    }
+    if (status != 'in_progress') {
+      throw Exception('Only in-progress tasks can be paused.');
+    }
+
+    final alreadyPaused = await _isTaskCurrentlyPaused(taskId);
+    if (alreadyPaused) {
+      return;
+    }
+
+    final actorId = _client.auth.currentUser?.id;
+    await _insertActivityRows(_client, {
+      'task_id': taskId,
+      'actor_id': actorId,
+      'action_type': 'paused',
+    });
+  }
+
+  Future<void> resumeTask({required String taskId}) async {
+    final row = await _client
+        .from('tasks')
+        .select('status')
+        .eq('id', taskId)
+        .maybeSingle();
+    if (row is! Map<String, dynamic>) {
+      throw Exception('Task not found');
+    }
+
+    final status = (row['status'] as String?)?.trim() ?? '';
+    if (status == 'completed' || status == 'cancelled' || status == 'closed') {
+      throw Exception('Cannot resume a terminal task.');
+    }
+    if (status != 'in_progress') {
+      throw Exception('Only in-progress tasks can be resumed.');
+    }
+
+    final isPaused = await _isTaskCurrentlyPaused(taskId);
+    if (!isPaused) {
+      return;
+    }
+
+    final actorId = _client.auth.currentUser?.id;
+    await _insertActivityRows(_client, {
+      'task_id': taskId,
+      'actor_id': actorId,
+      'action_type': 'resumed',
+    });
+  }
+
  Future<void> createTask({
    required String title,
    required String description,