// 2026-04-09 | OnlineController | 在线统计控制器 | 管理心跳和在线数据
// 2026-04-10 | API v2.0.0: OnlineRepository → StatsRepository，移除 timeline 方法
import 'dart:async';
import 'package:get/get.dart';
import 'package:mom_kitchen/src/controllers/base_controller.dart';
import 'package:mom_kitchen/src/repositories/online_repository.dart' as repo;

class OnlineController extends BaseController {
  final repo.StatsRepository _statsRepository = repo.StatsRepository();

  final RxMap<String, dynamic> onlineStats = <String, dynamic>{}.obs;
  final RxMap<String, dynamic> requestStats = <String, dynamic>{}.obs;
  Timer? _heartbeatTimer;

  @override
  void onInit() {
    super.onInit();
    Future.delayed(Duration.zero, () {
      loadOnlineStats();
      startHeartbeat();
    });
  }

  @override
  void onClose() {
    _heartbeatTimer?.cancel();
    super.onClose();
  }

  Future<void> loadOnlineStats() async {
    try {
      onlineStats.value = await _statsRepository.fetchOnlineStats();
    } catch (_) {}
  }

  Future<void> loadRequestStats() async {
    try {
      requestStats.value = await _statsRepository.fetchRequestStats();
    } catch (_) {}
  }

  void startHeartbeat() {
    _heartbeatTimer?.cancel();
    _heartbeatTimer = Timer.periodic(
      const Duration(seconds: 30),
      (_) => _sendHeartbeat(),
    );
    _sendHeartbeat();
  }

  Future<void> _sendHeartbeat() async {
    try {
      await _statsRepository.sendHeartbeat(platform: 'ios');
    } catch (_) {}
  }

  int get onlineTotal => onlineStats['online_total'] as int? ?? 0;
  int get online10min => onlineStats['online_10min'] as int? ?? 0;
  int get online1hour => onlineStats['online_1hour'] as int? ?? 0;
}