import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../models/daily_stats.dart';
import '../models/app_usage.dart';
import '../services/statistics_service.dart';

// StatisticsService Provider
final statisticsServiceProvider = Provider<StatisticsService>((ref) {
  return StatisticsService();
});

// 今日统计 Provider
final todayStatsProvider = FutureProvider<DailyStats>((ref) async {
  final service = ref.read(statisticsServiceProvider);
  return await service.getTodayStats();
});

// 本周统计 Provider
final weekStatsProvider = FutureProvider<List<DailyStats>>((ref) async {
  final service = ref.read(statisticsServiceProvider);
  return await service.getWeekStats();
});

// 本月统计 Provider
final monthStatsProvider = FutureProvider<List<DailyStats>>((ref) async {
  final service = ref.read(statisticsServiceProvider);
  return await service.getMonthStats();
});

// 今日统计列表 Provider（用于日视图，只返回今日数据）
final todayStatsListProvider = FutureProvider<List<DailyStats>>((ref) async {
  final service = ref.read(statisticsServiceProvider);
  final todayStats = await service.getTodayStats();
  return [todayStats];
});

// 今日 Top 应用 Provider
final todayTopAppsProvider = FutureProvider<List<AppUsage>>((ref) async {
  final service = ref.read(statisticsServiceProvider);
  final now = DateTime.now();
  final startOfDay = DateTime(now.year, now.month, now.day);
  final endOfDay = startOfDay.add(const Duration(days: 1));
  return await service.getTopApps(
    startTime: startOfDay,
    endTime: endOfDay,
    limit: 5,
  );
});

// 刷新今日统计 Provider
final refreshTodayStatsProvider = FutureProvider.family<DailyStats, void>((ref, _) async {
  final service = ref.read(statisticsServiceProvider);
  return await service.refreshTodayStats();
});