Implemented subject suggestions in Task Creation and Edit.

Fix editing redirects

lib/screens/tasks/tasks_list_screen.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_typeahead/flutter_typeahead.dart';
 import 'package:tasq/utils/app_time.dart';
 import 'package:go_router/go_router.dart';
 
@@ -23,6 +24,7 @@ import '../../widgets/tasq_adaptive_list.dart';
 import '../../widgets/typing_dots.dart';
 import '../../theme/app_surfaces.dart';
 import '../../utils/snackbar.dart';
+import '../../utils/subject_suggestions.dart';
 
 // request metadata options used in task creation/editing dialogs
 const List<String> _requestTypeOptions = [
@@ -565,6 +567,14 @@ class _TasksListScreenState extends ConsumerState<TasksListScreen>
   ) async {
     final titleController = TextEditingController();
     final descriptionController = TextEditingController();
+    final existingSubjects = <String>[
+      ...((ref.read(tasksProvider).valueOrNull ?? const <Task>[]).map(
+        (task) => task.title,
+      )),
+      ...((ref.read(ticketsProvider).valueOrNull ?? const <Ticket>[]).map(
+        (ticket) => ticket.subject,
+      )),
+    ];
     String? selectedOfficeId;
     String? selectedRequestType;
     String? requestTypeOther;
@@ -585,13 +595,31 @@ class _TasksListScreenState extends ConsumerState<TasksListScreen>
                 child: Column(
                   mainAxisSize: MainAxisSize.min,
                   children: [
-                    TextField(
+                    TypeAheadFormField<String>(
+                      textFieldConfiguration: TextFieldConfiguration(
                         controller: titleController,
                         decoration: const InputDecoration(
                           labelText: 'Task title',
                         ),
                         enabled: !saving,
                       ),
+                      suggestionsCallback: (pattern) async {
+                        return SubjectSuggestionEngine.suggest(
+                          existingSubjects: existingSubjects,
+                          query: pattern,
+                          limit: 8,
+                        );
+                      },
+                      itemBuilder: (context, suggestion) =>
+                          ListTile(dense: true, title: Text(suggestion)),
+                      onSuggestionSelected: (suggestion) {
+                        titleController
+                          ..text = suggestion
+                          ..selection = TextSelection.collapsed(
+                            offset: suggestion.length,
+                          );
+                      },
+                    ),
                     const SizedBox(height: 12),
                     TextField(
                       controller: descriptionController,
@@ -710,7 +738,10 @@ class _TasksListScreenState extends ConsumerState<TasksListScreen>
                   onPressed: saving
                       ? null
                       : () async {
-                          final title = titleController.text.trim();
+                          final title =
+                              SubjectSuggestionEngine.normalizeDisplay(
+                                titleController.text.trim(),
+                              );
                           final description = descriptionController.text.trim();
                           final officeId = selectedOfficeId;
                           if (title.isEmpty || officeId == null) {

lib/screens/tickets/ticket_detail_screen.dart

@@ -890,6 +890,8 @@ class _TicketDetailScreenState extends ConsumerState<TicketDetailScreen> {
     WidgetRef ref,
     Ticket ticket,
   ) async {
+    final screenContext = context;
+    final dialogShape = AppSurfaces.of(context).dialogShape;
     final officesAsync = ref.watch(officesOnceProvider);
     final subjectCtrl = TextEditingController(text: ticket.subject);
     final descCtrl = TextEditingController(text: ticket.description);
@@ -898,8 +900,11 @@ class _TicketDetailScreenState extends ConsumerState<TicketDetailScreen> {
     await showDialog<void>(
       context: context,
       builder: (dialogContext) {
+        var saving = false;
+        return StatefulBuilder(
+          builder: (dialogBuilderContext, setDialogState) {
             return AlertDialog(
-          shape: AppSurfaces.of(context).dialogShape,
+              shape: dialogShape,
               title: const Text('Edit Ticket'),
               content: SingleChildScrollView(
                 child: Column(
@@ -907,12 +912,16 @@ class _TicketDetailScreenState extends ConsumerState<TicketDetailScreen> {
                   children: [
                     TextField(
                       controller: subjectCtrl,
+                      enabled: !saving,
                       decoration: const InputDecoration(labelText: 'Subject'),
                     ),
                     const SizedBox(height: 8),
                     TextField(
                       controller: descCtrl,
-                  decoration: const InputDecoration(labelText: 'Description'),
+                      enabled: !saving,
+                      decoration: const InputDecoration(
+                        labelText: 'Description',
+                      ),
                       maxLines: 4,
                     ),
                     const SizedBox(height: 8),
@@ -926,16 +935,23 @@ class _TicketDetailScreenState extends ConsumerState<TicketDetailScreen> {
                           );
                         return DropdownButtonFormField<String?>(
                           initialValue: selectedOffice,
-                      decoration: const InputDecoration(labelText: 'Office'),
+                          decoration: const InputDecoration(
+                            labelText: 'Office',
+                          ),
                           items: [
                             const DropdownMenuItem(
                               value: null,
                               child: Text('Unassigned'),
                             ),
                             for (final o in officesSorted)
-                          DropdownMenuItem(value: o.id, child: Text(o.name)),
+                              DropdownMenuItem(
+                                value: o.id,
+                                child: Text(o.name),
+                              ),
                           ],
-                      onChanged: (v) => selectedOffice = v,
+                          onChanged: saving
+                              ? null
+                              : (v) => setDialogState(() => selectedOffice = v),
                         );
                       },
                       loading: () => const SizedBox.shrink(),
@@ -946,13 +962,18 @@ class _TicketDetailScreenState extends ConsumerState<TicketDetailScreen> {
               ),
               actions: [
                 TextButton(
-              onPressed: () => Navigator.of(dialogContext).pop(),
+                  onPressed: saving
+                      ? null
+                      : () => Navigator.of(dialogContext).pop(),
                   child: const Text('Cancel'),
                 ),
                 ElevatedButton(
-              onPressed: () async {
+                  onPressed: saving
+                      ? null
+                      : () async {
                           final subject = subjectCtrl.text.trim();
                           final desc = descCtrl.text.trim();
+                          setDialogState(() => saving = true);
                           try {
                             await ref
                                 .read(ticketsControllerProvider)
@@ -962,24 +983,43 @@ class _TicketDetailScreenState extends ConsumerState<TicketDetailScreen> {
                                   description: desc.isEmpty ? null : desc,
                                   officeId: selectedOffice,
                                 );
-                  if (!mounted) return;
+                            ref.invalidate(ticketsProvider);
-                  WidgetsBinding.instance.addPostFrameCallback((_) {
+                            ref.invalidate(ticketByIdProvider(ticket.id));
-                    Navigator.of(context).pop();
+                            if (!dialogContext.mounted ||
-                    showSuccessSnackBar(context, 'Ticket updated');
+                                !screenContext.mounted) {
-                  });
+                              return;
+                            }
+                            Navigator.of(dialogContext).pop();
+                            showSuccessSnackBar(
+                              screenContext,
+                              'Ticket updated',
+                            );
                           } catch (e) {
-                  if (!mounted) return;
+                            if (!screenContext.mounted) return;
-                  WidgetsBinding.instance.addPostFrameCallback((_) {
+                            showErrorSnackBar(
-                    showErrorSnackBar(context, 'Failed to update ticket: $e');
+                              screenContext,
-                  });
+                              'Failed to update ticket: $e',
+                            );
+                          } finally {
+                            if (dialogContext.mounted) {
+                              setDialogState(() => saving = false);
+                            }
                           }
                         },
-              child: const Text('Save'),
+                  child: saving
+                      ? const SizedBox(
+                          width: 18,
+                          height: 18,
+                          child: CircularProgressIndicator(strokeWidth: 2),
+                        )
+                      : const Text('Save'),
                 ),
               ],
             );
           },
         );
+      },
+    );
   }
 
   Widget _timelineRow(String label, DateTime? value) {