feat: 实现日历提醒 in-app fallback 机制及通知服务重构

2026-03-20 01:30:34 +08:00
parent 7fd536e976
commit d574128815
55 changed files with 4565 additions and 647 deletions
@@ -0,0 +1,57 @@
+import 'dart:async';
+import 'dart:collection';
+
+typedef ReminderColdStartReplayTask = Future<void> Function();
+typedef ReminderColdStartTaskErrorHandler =
+    void Function(Object error, StackTrace stackTrace);
+
+class ReminderColdStartQueue {
+  final Queue<ReminderColdStartReplayTask> _tasks =
+      Queue<ReminderColdStartReplayTask>();
+  final ReminderColdStartTaskErrorHandler? _onTaskError;
+  Future<void>? _inFlightReplay;
+
+  ReminderColdStartQueue({ReminderColdStartTaskErrorHandler? onTaskError})
+    : _onTaskError = onTaskError;
+
+  void enqueue(ReminderColdStartReplayTask task) {
+    _tasks.add(task);
+  }
+
+  Future<void> replay() {
+    final inFlightReplay = _inFlightReplay;
+    if (inFlightReplay != null) {
+      return inFlightReplay;
+    }
+
+    final replayCompleter = Completer<void>();
+    final replayFuture = replayCompleter.future;
+    _inFlightReplay = replayFuture;
+
+    scheduleMicrotask(() async {
+      try {
+        await _replayInternal();
+        replayCompleter.complete();
+      } catch (error, stackTrace) {
+        replayCompleter.completeError(error, stackTrace);
+      } finally {
+        if (identical(_inFlightReplay, replayFuture)) {
+          _inFlightReplay = null;
+        }
+      }
+    });
+
+    return replayFuture;
+  }
+
+  Future<void> _replayInternal() async {
+    while (_tasks.isNotEmpty) {
+      final task = _tasks.removeFirst();
+      try {
+        await task();
+      } catch (error, stackTrace) {
+        _onTaskError?.call(error, stackTrace);
+      }
+    }
+  }
+}