Initial handling of activity logs

lib/providers/tasks_provider.dart

@@ -16,6 +16,39 @@ import 'tickets_provider.dart';
 import 'user_offices_provider.dart';
 import '../utils/app_time.dart';
 
+// Helper to insert activity log rows while sanitizing nulls and
+// avoiding exceptions from malformed payloads. Accepts either a Map
+// or a List<Map>.
+Future<void> _insertActivityRows(dynamic client, dynamic rows) async {
+  try {
+    if (rows == null) return;
+    if (rows is List) {
+      final sanitized = rows
+          .map((r) {
+            if (r is Map) {
+              final m = Map<String, dynamic>.from(r);
+              m.removeWhere((k, v) => v == null);
+              return m;
+            }
+            return null;
+          })
+          .whereType<Map<String, dynamic>>()
+          .toList();
+      if (sanitized.isEmpty) return;
+      await client.from('task_activity_logs').insert(sanitized);
+    } else if (rows is Map) {
+      final m = Map<String, dynamic>.from(rows);
+      m.removeWhere((k, v) => v == null);
+      await client.from('task_activity_logs').insert(m);
+    }
+  } catch (e) {
+    // Log for debugging but don't rethrow to avoid breaking caller flows
+    try {
+      debugPrint('[insertActivityRows] insert failed: $e');
+    } catch (_) {}
+  }
+}
+
 /// Task query parameters for server-side pagination and filtering.
 class TaskQuery {
   /// Creates task query parameters.
@@ -337,7 +370,7 @@ class TasksController {
     if (taskId == null) return;
 
     try {
-      await _client.from('task_activity_logs').insert({
+      await _insertActivityRows(_client, {
         'task_id': taskId,
         'actor_id': actorId,
         'action_type': 'created',
@@ -549,13 +582,13 @@ class TasksController {
     try {
       final actorId = _client.auth.currentUser?.id;
       if (status == 'in_progress') {
-        await _client.from('task_activity_logs').insert({
+        await _insertActivityRows(_client, {
           'task_id': taskId,
           'actor_id': actorId,
           'action_type': 'started',
         });
       } else if (status == 'completed') {
-        await _client.from('task_activity_logs').insert({
+        await _insertActivityRows(_client, {
           'task_id': taskId,
           'actor_id': actorId,
           'action_type': 'completed',
@@ -678,7 +711,7 @@ class TasksController {
       if (onDuty.isEmpty) {
         // record a failed auto-assign attempt for observability
         try {
-          await _client.from('task_activity_logs').insert({
+          await _insertActivityRows(_client, {
             'task_id': taskId,
             'actor_id': null,
             'action_type': 'auto_assign_failed',
@@ -726,7 +759,7 @@ class TasksController {
 
       if (candidates.isEmpty) {
         try {
-          await _client.from('task_activity_logs').insert({
+          await _insertActivityRows(_client, {
             'task_id': taskId,
             'actor_id': null,
             'action_type': 'auto_assign_failed',
@@ -752,7 +785,7 @@ class TasksController {
       });
 
       try {
-        await _client.from('task_activity_logs').insert({
+        await _insertActivityRows(_client, {
           'task_id': taskId,
           'actor_id': null,
           'action_type': 'assigned',
@@ -773,7 +806,7 @@ class TasksController {
       // ignore: avoid_print
       print('autoAssignTask error for task=$taskId: $e\n$st');
       try {
-        await _client.from('task_activity_logs').insert({
+        await _insertActivityRows(_client, {
           'task_id': taskId,
           'actor_id': null,
           'action_type': 'auto_assign_failed',
@@ -859,7 +892,7 @@ class TaskAssignmentsController {
               },
             )
             .toList();
-        await _client.from('task_activity_logs').insert(logRows);
+        await _insertActivityRows(_client, logRows);
       } catch (_) {
         // non-fatal
       }
@@ -876,7 +909,7 @@ class TaskAssignmentsController {
       // Record a reassignment event (who removed -> who added)
       try {
         final actorId = _client.auth.currentUser?.id;
-        await _client.from('task_activity_logs').insert({
+        await _insertActivityRows(_client, {
           'task_id': taskId,
           'actor_id': actorId,
           'action_type': 'reassigned',