import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:siro_driver/constant/box_name.dart';
import 'package:siro_driver/constant/links.dart';
import 'package:siro_driver/controller/functions/crud.dart';
import '../../../main.dart';

// ════════════════════════════════════════════
//  نموذج التحدي
// ════════════════════════════════════════════

class Challenge {
  final String id;
  final String titleEn;
  final String titleAr;
  final String descriptionEn;
  final String descriptionAr;
  final IconData icon;
  final Color color;
  final int target;
  final int reward; // نقاط
  final String type; // 'daily' or 'weekly'
  final String metric; // 'trips', 'earnings', 'hours', 'acceptance_rate'
  int currentProgress;
  bool isClaimed;

  Challenge({
    required this.id,
    required this.titleEn,
    required this.titleAr,
    required this.descriptionEn,
    required this.descriptionAr,
    required this.icon,
    required this.color,
    required this.target,
    required this.reward,
    required this.type,
    required this.metric,
    this.currentProgress = 0,
    this.isClaimed = false,
  });

  double get progress => (currentProgress / target).clamp(0.0, 1.0);
  bool get isCompleted => currentProgress >= target;
}

// ════════════════════════════════════════════
//  Controller
// ════════════════════════════════════════════

class ChallengesController extends GetxController {
  bool isLoading = false;
  List<Challenge> dailyChallenges = [];
  List<Challenge> weeklyChallenges = [];

  @override
  void onInit() {
    super.onInit();
    _generateChallenges();
    _loadProgress();
    fetchChallengeProgress();
  }

  void _generateChallenges() {
    final now = DateTime.now();
    final isWeekend = now.weekday == 5 || now.weekday == 6; // الجمعة والسبت

    dailyChallenges = [
      Challenge(
        id: 'daily_trips_5',
        titleEn: 'Road Runner',
        titleAr: 'سائق سريع',
        descriptionEn: 'Complete 5 trips today',
        descriptionAr: 'أكمل 5 رحلات اليوم',
        icon: Icons.local_taxi_rounded,
        color: const Color(0xFF2196F3),
        target: 5,
        reward: 50,
        type: 'daily',
        metric: 'trips',
      ),
      Challenge(
        id: 'daily_trips_10',
        titleEn: 'Marathon Driver',
        titleAr: 'سائق الماراثون',
        descriptionEn: 'Complete 10 trips today',
        descriptionAr: 'أكمل 10 رحلات اليوم',
        icon: Icons.directions_car_rounded,
        color: const Color(0xFFFF9800),
        target: 10,
        reward: 150,
        type: 'daily',
        metric: 'trips',
      ),
      Challenge(
        id: 'daily_earnings',
        titleEn: 'Money Maker',
        titleAr: 'صانع المال',
        descriptionEn: 'Earn 3000 SYP today',
        descriptionAr: 'اربح 3000 ل.س اليوم',
        icon: Icons.monetization_on_rounded,
        color: const Color(0xFF4CAF50),
        target: 3000,
        reward: 100,
        type: 'daily',
        metric: 'earnings',
      ),
      if (isWeekend)
        Challenge(
          id: 'daily_weekend_bonus',
          titleEn: 'Weekend Warrior',
          titleAr: 'محارب عطلة نهاية الأسبوع',
          descriptionEn: 'Complete 8 trips on the weekend',
          descriptionAr: 'أكمل 8 رحلات في عطلة نهاية الأسبوع',
          icon: Icons.celebration_rounded,
          color: const Color(0xFFE91E63),
          target: 8,
          reward: 200,
          type: 'daily',
          metric: 'trips',
        ),
    ];

    weeklyChallenges = [
      Challenge(
        id: 'weekly_trips_30',
        titleEn: 'Weekly Champion',
        titleAr: 'بطل الأسبوع',
        descriptionEn: 'Complete 30 trips this week',
        descriptionAr: 'أكمل 30 رحلة هذا الأسبوع',
        icon: Icons.emoji_events_rounded,
        color: const Color(0xFFFFD700),
        target: 30,
        reward: 300,
        type: 'weekly',
        metric: 'trips',
      ),
      Challenge(
        id: 'weekly_earnings',
        titleEn: 'Big Earner',
        titleAr: 'الربح الكبير',
        descriptionEn: 'Earn 20,000 SYP this week',
        descriptionAr: 'اربح 20,000 ل.س هذا الأسبوع',
        icon: Icons.account_balance_wallet_rounded,
        color: const Color(0xFF9C27B0),
        target: 20000,
        reward: 500,
        type: 'weekly',
        metric: 'earnings',
      ),
      Challenge(
        id: 'weekly_hours',
        titleEn: 'Time Master',
        titleAr: 'سيد الوقت',
        descriptionEn: 'Drive for 20 hours this week',
        descriptionAr: 'اقضِ 20 ساعة في القيادة هذا الأسبوع',
        icon: Icons.timer_rounded,
        color: const Color(0xFF00BCD4),
        target: 20,
        reward: 400,
        type: 'weekly',
        metric: 'hours',
      ),
    ];
  }

  void _loadProgress() {
    final today = DateTime.now().toIso8601String().split('T')[0];
    final savedDate = box.read('challenges_date');

    if (savedDate != today) {
      // يوم جديد — إعادة تعيين التحديات اليومية
      box.write('challenges_date', today);
      for (var c in dailyChallenges) {
        box.write('challenge_${c.id}_claimed', false);
      }
    }

    // تحميل حالة المطالبة
    for (var c in dailyChallenges) {
      c.isClaimed = box.read('challenge_${c.id}_claimed') ?? false;
    }
    for (var c in weeklyChallenges) {
      c.isClaimed = box.read('challenge_${c.id}_claimed') ?? false;
    }
  }

  Future<void> fetchChallengeProgress() async {
    isLoading = true;
    update();

    try {
      // جلب رحلات اليوم
      var todayRes = await CRUD().getWallet(
        link: AppLink.getDriverPaymentToday,
        payload: {'driverID': box.read(BoxName.driverID).toString()},
      );

      int todayTrips = 0;
      double todayEarnings = 0;

      if (todayRes != null && todayRes != 'failure') {
        var data = jsonDecode(todayRes);
        todayEarnings = double.tryParse(data['message']?[0]?['todayAmount']?.toString() ?? '0') ?? 0;
        todayTrips = int.tryParse(data['message']?[0]?['todayCount']?.toString() ?? '0') ?? 0;
      }

      // تحديث التحديات اليومية
      for (var c in dailyChallenges) {
        switch (c.metric) {
          case 'trips':
            c.currentProgress = todayTrips;
            break;
          case 'earnings':
            c.currentProgress = todayEarnings.toInt();
            break;
        }
      }

      // 2. Fetch weekly earnings from PAYMENT server
      var weeklyEarningsRes = await CRUD().getWallet(
        link: AppLink.getDriverWeekPaymentMove,
        payload: {'driverID': box.read(BoxName.driverID).toString()},
      );

      double weeklyEarnings = 0;
      if (weeklyEarningsRes != null && weeklyEarningsRes != 'failure') {
        var data = jsonDecode(weeklyEarningsRes);
        if (data['message'] is List && data['message'].isNotEmpty) {
          weeklyEarnings = double.tryParse(data['message'][0]['totalAmount']?.toString() ?? '0') ?? 0;
        }
      }

      // 3. Fetch weekly trips and hours from RIDES server (avoiding earnings join)
      var weeklyAggregateRes = await CRUD().get(
        link: AppLink.getWeeklyAggregate,
        payload: {'driver_id': box.read(BoxName.driverID).toString()},
      );

      int weeklyTrips = 0;
      double weeklyHours = 0;

      if (weeklyAggregateRes != null && weeklyAggregateRes != 'failure') {
        var data = jsonDecode(weeklyAggregateRes);
        if (data['message'] is List) {
          for (var day in data['message']) {
            weeklyTrips += int.tryParse(day['trips']?.toString() ?? '0') ?? 0;
            weeklyHours += double.tryParse(day['hours']?.toString() ?? '0') ?? 0;
          }
        }
      }

      for (var c in weeklyChallenges) {
        switch (c.metric) {
          case 'trips':
            c.currentProgress = weeklyTrips;
            break;
          case 'earnings':
            c.currentProgress = weeklyEarnings.toInt();
            break;
          case 'hours':
            c.currentProgress = weeklyHours.toInt();
            break;
        }
      }
    } catch (e) {
      debugPrint('❌ [Challenges] Error: $e');
    }

    isLoading = false;
    update();
  }

  Future<void> claimReward(Challenge challenge) async {
    if (!challenge.isCompleted || challenge.isClaimed) return;

    try {
      var res = await CRUD().post(
        link: AppLink.claimChallengeReward,
        payload: {
          'driver_id': box.read(BoxName.driverID).toString(),
          'challenge_id': challenge.id,
          'points': challenge.reward.toString(),
        },
      );

      if (res != null && res != 'failure') {
        challenge.isClaimed = true;
        box.write('challenge_${challenge.id}_claimed', true);
        debugPrint('🎉 Claimed ${challenge.reward} points for ${challenge.id}');
        update();
      }
    } catch (e) {
      debugPrint('❌ [Challenges] Claim error: $e');
    }
  }
}