feat: 重构会话管理与提醒通知系统

apps/lib/features/todo/presentation/screens/todo_quadrants_screen.dart

@@ -42,14 +42,23 @@ class _TodoQuadrantsScreenState extends State<TodoQuadrantsScreen> {
     int newItemIndex,
     int newListIndex,
   ) async {
+    print(
+      'DEBUG _onItemReorder: oldItemIndex=$oldItemIndex, oldListIndex=$oldListIndex, newItemIndex=$newItemIndex, newListIndex=$newListIndex',
+    );
     if (_isReordering) {
+      print('DEBUG _onItemReorder: early return - _isReordering=true');
       return;
     }
 
     final sourceQuadrant = _quadrantByListIndex(oldListIndex);
     final targetQuadrant = _quadrantByListIndex(newListIndex);
+    print(
+      'DEBUG _onItemReorder: sourceQuadrant=$sourceQuadrant, targetQuadrant=$targetQuadrant',
+    );
     final sourceItems = _sortedQuadrantTodos(sourceQuadrant);
+    print('DEBUG _onItemReorder: sourceItems.length=${sourceItems.length}');
     if (oldItemIndex < 0 || oldItemIndex >= sourceItems.length) {
+      print('DEBUG _onItemReorder: early return - index out of bounds');
       return;
     }
 
@@ -66,7 +75,9 @@ class _TodoQuadrantsScreenState extends State<TodoQuadrantsScreen> {
         targetQuadrant: targetQuadrant,
         insertIndex: newItemIndex,
       );
+      print('DEBUG _onItemReorder: reordered=$reordered');
       if (reordered == null) {
+        print('DEBUG _onItemReorder: early return - reordered is null');
         return;
       }
 
@@ -117,19 +128,27 @@ class _TodoQuadrantsScreenState extends State<TodoQuadrantsScreen> {
     required int targetQuadrant,
     required int insertIndex,
   }) {
+    print(
+      'DEBUG _reorderTodos: todoId=$todoId, sourceQuadrant=$sourceQuadrant, targetQuadrant=$targetQuadrant, insertIndex=$insertIndex',
+    );
     final byId = {for (final todo in _todos) todo.id: todo};
     final moving = byId[todoId];
+    print('DEBUG _reorderTodos: moving=$moving');
     if (moving == null) {
+      print('DEBUG _reorderTodos: early return - moving is null');
       return null;
     }
 
     final sourceList = _sortedQuadrantTodos(sourceQuadrant);
+    print('DEBUG _reorderTodos: sourceList.length=${sourceList.length}');
     final targetList = sourceQuadrant == targetQuadrant
         ? sourceList
         : _sortedQuadrantTodos(targetQuadrant);
 
     final sourceIndex = sourceList.indexWhere((todo) => todo.id == todoId);
+    print('DEBUG _reorderTodos: sourceIndex=$sourceIndex');
     if (sourceIndex == -1) {
+      print('DEBUG _reorderTodos: early return - sourceIndex is -1');
       return null;
     }
 
@@ -154,16 +173,33 @@ class _TodoQuadrantsScreenState extends State<TodoQuadrantsScreen> {
     }
 
     final moved = extracted.copyWith(priority: targetQuadrant);
+    print(
+      'DEBUG _reorderTodos: moved.priority=${moved.priority}, moved.order=${moved.order}',
+    );
     mutableTarget.insert(targetIndex, moved);
 
+    print('DEBUG _reorderTodos: mutableTarget.length=${mutableTarget.length}');
+    for (var i = 0; i < mutableTarget.length; i++) {
+      print(
+        'DEBUG _reorderTodos: mutableTarget[$i] id=${mutableTarget[i].id}, priority=${mutableTarget[i].priority}, order=${mutableTarget[i].order}',
+      );
+    }
+
     final updatedById = <String, TodoResponse>{};
     void reindex(List<TodoResponse> list, int priority) {
+      print(
+        'DEBUG _reorderTodos: reindex called with priority=$priority, list.length=${list.length}',
+      );
       for (var index = 0; index < list.length; index += 1) {
         final current = list[index];
         final updated = current.copyWith(priority: priority, order: index);
         list[index] = updated;
+        print(
+          'DEBUG _reorderTodos: reindex item id=${current.id}, current.priority=${current.priority}, updated.priority=${updated.priority}, current.order=${current.order}, updated.order=${updated.order}',
+        );
         if (current.priority != updated.priority ||
             current.order != updated.order) {
+          print('DEBUG _reorderTodos: adding to updatedById id=${updated.id}');
           updatedById[updated.id] = updated;
         }
       }
@@ -174,9 +210,12 @@ class _TodoQuadrantsScreenState extends State<TodoQuadrantsScreen> {
     } else {
       reindex(mutableSource, sourceQuadrant);
       reindex(mutableTarget, targetQuadrant);
+      updatedById[moved.id] = moved;
     }
 
+    print('DEBUG _reorderTodos: updatedById.length=${updatedById.length}');
     if (updatedById.isEmpty) {
+      print('DEBUG _reorderTodos: returning null because updatedById is empty');
       return null;
     }
 
@@ -454,13 +493,19 @@ class _TodoQuadrantsScreenState extends State<TodoQuadrantsScreen> {
       onWillAcceptWithDetails: (details) => true,
       onAcceptWithDetails: (details) {
         final info = details.data;
+        print(
+          'DEBUG: onAccept - sourceQuadrant=${info.sourceQuadrant}, targetQuadrant=$value, sourceIndex=${info.sourceIndex}, todoId=${info.todoId}',
+        );
         if (info.sourceQuadrant != value) {
+          print('DEBUG: calling _onItemReorder');
           _onItemReorder(
             info.sourceIndex,
             _listIndexByQuadrant(info.sourceQuadrant),
             0,
             _listIndexByQuadrant(value),
           );
+        } else {
+          print('DEBUG: same quadrant, no reorder');
         }
       },
       builder: (context, candidateData, rejectedData) {