Implemented Task Pause and Resume

This commit is contained in:
Marc Rejohn Castillano 2026-03-04 07:12:00 +08:00
parent 81bc618eee
commit 94088a8796
3 changed files with 327 additions and 17 deletions

View File

@ -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,

View File

@ -123,6 +123,7 @@ class _TaskDetailScreenState extends ConsumerState<TaskDetailScreen>
bool _actionSaving = false;
bool _actionSaved = false;
bool _actionProcessing = false;
bool _pauseActionInFlight = false;
late final AnimationController _saveAnimController;
late final Animation<double> _savePulse;
static const List<String> _statusOptions = [
@ -259,6 +260,10 @@ class _TaskDetailScreenState extends ConsumerState<TaskDetailScreen>
assignments,
task.id,
);
final taskLogs =
ref.watch(taskActivityLogsProvider(task.id)).valueOrNull ??
<TaskActivityLog>[];
final isTaskPaused = _isTaskCurrentlyPaused(task, taskLogs);
final typingState = ref.watch(typingIndicatorProvider(typingChannelId));
final canSendMessages = task.status != 'completed';
@ -584,22 +589,120 @@ class _TaskDetailScreenState extends ConsumerState<TaskDetailScreen>
child: TabBarView(
children: [
// Assignees (Tab 1)
SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.only(top: 8.0),
child: Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
TaskAssignmentSection(
taskId: task.id,
canAssign: showAssign,
Stack(
children: [
Positioned.fill(
child: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.only(
top: 8.0,
bottom: 68,
),
child: Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
TaskAssignmentSection(
taskId: task.id,
canAssign: showAssign,
),
const SizedBox(height: 12),
const SizedBox.shrink(),
],
),
),
const SizedBox(height: 12),
const SizedBox.shrink(),
],
),
),
),
if (canUpdateStatus &&
task.status == 'in_progress')
Positioned(
right: 8,
bottom: 8,
child: IconButton.filledTonal(
tooltip: isTaskPaused
? 'Resume task'
: 'Pause task',
onPressed: _pauseActionInFlight
? null
: () async {
setState(
() => _pauseActionInFlight =
true,
);
try {
if (isTaskPaused) {
await ref
.read(
tasksControllerProvider,
)
.resumeTask(
taskId: task.id,
);
ref.invalidate(
taskActivityLogsProvider(
task.id,
),
);
if (mounted) {
showSuccessSnackBar(
context,
'Task resumed',
);
}
} else {
await ref
.read(
tasksControllerProvider,
)
.pauseTask(
taskId: task.id,
);
ref.invalidate(
taskActivityLogsProvider(
task.id,
),
);
if (mounted) {
showInfoSnackBar(
context,
'Task paused',
);
}
}
} catch (e) {
if (mounted) {
showErrorSnackBar(
context,
e.toString(),
);
}
} finally {
if (mounted) {
setState(
() =>
_pauseActionInFlight =
false,
);
}
}
},
icon: _pauseActionInFlight
? const SizedBox(
width: 18,
height: 18,
child:
CircularProgressIndicator(
strokeWidth: 2,
),
)
: Icon(
isTaskPaused
? Icons.play_arrow
: Icons.pause,
),
),
),
],
),
// Type & Category
@ -2967,13 +3070,37 @@ class _TaskDetailScreenState extends ConsumerState<TaskDetailScreen>
);
}
break;
case 'paused':
timeline.add(
_activityRow(
'Task paused',
actorName,
l.createdAt,
icon: Icons.pause_circle,
),
);
break;
case 'resumed':
timeline.add(
_activityRow(
'Task resumed',
actorName,
l.createdAt,
icon: Icons.play_circle,
),
);
break;
case 'completed':
{
var label = 'Task completed';
if (task.startedAt != null) {
final start = task.startedAt!;
final start = _resolveExecutionStart(task, logs);
if (start != null) {
final end = task.completedAt ?? l.createdAt;
final exec = end.difference(start);
final exec = _computeEffectiveExecutionDuration(
task,
logs,
end,
);
if (exec.inMilliseconds > 0) {
label =
'Task completed — Execution: ${_formatDuration(exec)} (${AppTime.formatDate(start)} ${AppTime.formatTime(start)}${AppTime.formatDate(end)} ${AppTime.formatTime(end)})';
@ -3094,6 +3221,89 @@ class _TaskDetailScreenState extends ConsumerState<TaskDetailScreen>
);
}
DateTime? _resolveExecutionStart(Task task, List<TaskActivityLog> logs) {
DateTime? started;
for (final entry in logs.reversed) {
if (entry.actionType == 'started') {
started = entry.createdAt;
break;
}
}
return started ?? task.startedAt;
}
Duration _computeEffectiveExecutionDuration(
Task task,
List<TaskActivityLog> logs,
DateTime endAt,
) {
final start = _resolveExecutionStart(task, logs);
if (start == null || !endAt.isAfter(start)) {
return Duration.zero;
}
Duration pausedTotal = Duration.zero;
DateTime? pausedSince;
final events = logs.reversed.where((entry) {
if (entry.createdAt.isBefore(start)) return false;
if (entry.createdAt.isAfter(endAt)) return false;
return entry.actionType == 'paused' || entry.actionType == 'resumed';
});
for (final event in events) {
if (event.actionType == 'paused') {
pausedSince ??= event.createdAt;
} else if (event.actionType == 'resumed' && pausedSince != null) {
if (event.createdAt.isAfter(pausedSince)) {
pausedTotal += event.createdAt.difference(pausedSince);
}
pausedSince = null;
}
}
if (pausedSince != null && endAt.isAfter(pausedSince)) {
pausedTotal += endAt.difference(pausedSince);
}
final total = endAt.difference(start) - pausedTotal;
if (total.isNegative) {
return Duration.zero;
}
return total;
}
bool _isTaskCurrentlyPaused(Task task, List<TaskActivityLog> logs) {
if (task.status != 'in_progress') {
return false;
}
var started = task.startedAt != null;
var paused = false;
for (final entry in logs.reversed) {
switch (entry.actionType) {
case 'started':
started = true;
paused = false;
break;
case 'paused':
if (started) {
paused = true;
}
break;
case 'resumed':
if (started) {
paused = false;
}
break;
case 'completed':
case 'cancelled':
paused = false;
break;
}
}
return started && paused;
}
String _formatDuration(Duration? duration) {
if (duration == null) {
return 'Pending';

View File

@ -0,0 +1,8 @@
-- Support pause/resume task execution tracking queries.
--
-- The app records `paused` and `resumed` events in `task_activity_logs`
-- while task status remains `in_progress`. This index speeds up lookups
-- that resolve current pause state and execution-time calculations.
create index if not exists idx_task_activity_logs_task_action_created_at
on public.task_activity_logs(task_id, action_type, created_at desc);