// Author: fruit.com.cn

import 'json_numbers.dart';

/// 奖励中心首屏数据。
class RewardOverview {
  const RewardOverview({
    required this.serverDate,
    required this.timezone,
    required this.coinBalance,
    required this.checkin,
    this.sections = const [],
    this.activities = const [],
  });

  final String serverDate;
  final String timezone;
  final int coinBalance;
  final RewardCheckinState checkin;
  final List<RewardSection> sections;
  final List<RewardActivity> activities;

  factory RewardOverview.fromJson(Map<String, dynamic> json) {
    return RewardOverview(
      serverDate: json['serverDate'] as String? ?? '',
      timezone: json['timezone'] as String? ?? '',
      coinBalance: jsonToInt(json['coinBalance']),
      checkin: RewardCheckinState.fromJson(_map(json['checkin'])),
      sections: _maps(json['sections']).map(RewardSection.fromJson).toList(),
      activities: _maps(
        json['activities'],
      ).map(RewardActivity.fromJson).toList(),
    );
  }
}

/// 七日签到状态。
class RewardCheckinState {
  const RewardCheckinState({
    required this.taskId,
    required this.checkedInToday,
    required this.streak,
    required this.currentDay,
    this.days = const [],
  });

  final String taskId;
  final bool checkedInToday;
  final int streak;
  final int currentDay;
  final List<RewardCheckinDay> days;

  factory RewardCheckinState.fromJson(Map<String, dynamic> json) {
    return RewardCheckinState(
      taskId: (json['taskId'] ?? '').toString(),
      checkedInToday: json['checkedInToday'] == true,
      streak: jsonToInt(json['streak']),
      currentDay: jsonToInt(json['currentDay']),
      days: _maps(json['days']).map(RewardCheckinDay.fromJson).toList(),
    );
  }
}

/// 签到周期中的一天。
class RewardCheckinDay {
  const RewardCheckinDay({
    required this.dayIndex,
    required this.rewardCoin,
    required this.checked,
    required this.current,
  });

  final int dayIndex;
  final int rewardCoin;
  final bool checked;
  final bool current;

  factory RewardCheckinDay.fromJson(Map<String, dynamic> json) {
    return RewardCheckinDay(
      dayIndex: jsonToInt(json['dayIndex']),
      rewardCoin: jsonToInt(json['rewardCoin']),
      checked: json['checked'] == true,
      current: json['current'] == true,
    );
  }
}

/// 一组奖励任务。
class RewardSection {
  const RewardSection({
    required this.code,
    required this.title,
    this.tasks = const [],
  });

  final String code;
  final String title;
  final List<RewardTask> tasks;

  factory RewardSection.fromJson(Map<String, dynamic> json) {
    return RewardSection(
      code: json['code'] as String? ?? '',
      title: json['title'] as String? ?? '',
      tasks: _maps(json['tasks']).map(RewardTask.fromJson).toList(),
    );
  }
}

/// 奖励任务卡片。
class RewardTask {
  const RewardTask({
    required this.id,
    required this.code,
    required this.type,
    required this.title,
    required this.subtitle,
    required this.ctaText,
    required this.actionType,
    required this.actionUrl,
    required this.progressValue,
    required this.targetValue,
    required this.rewardCoin,
    required this.status,
    this.iconUrl = '',
  });

  final String id;
  final String code;
  final String type;
  final String title;
  final String subtitle;
  final String ctaText;
  final String actionType;
  final String actionUrl;
  final String iconUrl;
  final int progressValue;
  final int targetValue;
  final int rewardCoin;
  final String status;

  bool get claimable => status == 'COMPLETED';
  bool get claimed => status == 'CLAIMED';
  double get progress =>
      targetValue <= 0 ? 0 : (progressValue / targetValue).clamp(0.0, 1.0);

  factory RewardTask.fromJson(Map<String, dynamic> json) {
    return RewardTask(
      id: (json['id'] ?? '').toString(),
      code: json['code'] as String? ?? '',
      type: json['type'] as String? ?? '',
      title: json['title'] as String? ?? '',
      subtitle: json['subtitle'] as String? ?? '',
      ctaText: json['ctaText'] as String? ?? '',
      actionType: json['actionType'] as String? ?? '',
      actionUrl: json['actionUrl'] as String? ?? '',
      iconUrl: json['iconUrl'] as String? ?? '',
      progressValue: jsonToInt(json['progressValue']),
      targetValue: jsonToInt(json['targetValue']),
      rewardCoin: jsonToInt(json['rewardCoin']),
      status: json['status'] as String? ?? 'IN_PROGRESS',
    );
  }
}

/// 奖励活动展示卡片。
class RewardActivity {
  const RewardActivity({
    required this.id,
    required this.code,
    required this.title,
    required this.summary,
    required this.ctaText,
    required this.actionType,
    required this.actionUrl,
    this.coverUrl = '',
  });

  final String id;
  final String code;
  final String title;
  final String summary;
  final String ctaText;
  final String actionType;
  final String actionUrl;
  final String coverUrl;

  factory RewardActivity.fromJson(Map<String, dynamic> json) {
    return RewardActivity(
      id: (json['id'] ?? '').toString(),
      code: json['code'] as String? ?? '',
      title: json['title'] as String? ?? '',
      summary: json['summary'] as String? ?? '',
      ctaText: json['ctaText'] as String? ?? '',
      actionType: json['actionType'] as String? ?? '',
      actionUrl: json['actionUrl'] as String? ?? '',
      coverUrl: json['coverUrl'] as String? ?? '',
    );
  }
}

/// 签到或任务领取后的余额变化结果。
class RewardActionResult {
  const RewardActionResult({
    required this.rewardCoin,
    required this.coinBalance,
    required this.alreadyCompleted,
  });

  final int rewardCoin;
  final int coinBalance;
  final bool alreadyCompleted;

  factory RewardActionResult.fromCheckin(Map<String, dynamic> json) {
    return RewardActionResult(
      rewardCoin: jsonToInt(json['rewardCoin']),
      coinBalance: jsonToInt(json['coinBalance']),
      alreadyCompleted: json['alreadyCheckedIn'] == true,
    );
  }

  factory RewardActionResult.fromClaim(Map<String, dynamic> json) {
    return RewardActionResult(
      rewardCoin: jsonToInt(json['rewardCoin']),
      coinBalance: jsonToInt(json['coinBalance']),
      alreadyCompleted: json['alreadyGranted'] == true,
    );
  }
}

Map<String, dynamic> _map(Object? value) {
  if (value is Map<String, dynamic>) return value;
  if (value is Map) return value.cast<String, dynamic>();
  return const {};
}

List<Map<String, dynamic>> _maps(Object? value) {
  if (value is! List) return const [];
  return value
      .whereType<Map>()
      .map((item) => item.cast<String, dynamic>())
      .toList();
}