import AsyncStorage from '@/utils/kvStore';

// 用户偏好设置的存储键
const PREFERENCES_KEYS = {
  QUICK_WATER_AMOUNT: 'user_preference_quick_water_amount',
  WATER_GOAL: 'user_preference_water_goal',
  NOTIFICATION_ENABLED: 'user_preference_notification_enabled',
  FITNESS_EXERCISE_MINUTES_INFO_DISMISSED: 'user_preference_fitness_exercise_minutes_info_dismissed',
  FITNESS_ACTIVE_HOURS_INFO_DISMISSED: 'user_preference_fitness_active_hours_info_dismissed',
  WATER_REMINDER_ENABLED: 'user_preference_water_reminder_enabled',
  WATER_REMINDER_START_TIME: 'user_preference_water_reminder_start_time',
  WATER_REMINDER_END_TIME: 'user_preference_water_reminder_end_time',
  WATER_REMINDER_INTERVAL: 'user_preference_water_reminder_interval',
} as const;

// 用户偏好设置接口
export interface UserPreferences {
  quickWaterAmount: number;
  waterGoal: number;
  notificationEnabled: boolean;
  fitnessExerciseMinutesInfoDismissed: boolean;
  fitnessActiveHoursInfoDismissed: boolean;
  waterReminderEnabled: boolean;
  waterReminderStartTime: string; // 格式: "08:00"
  waterReminderEndTime: string; // 格式: "22:00"
  waterReminderInterval: number; // 分钟
}

// 默认的用户偏好设置
const DEFAULT_PREFERENCES: UserPreferences = {
  quickWaterAmount: 150, // 默认快速添加饮水量为 150ml
  waterGoal: 2000, // 默认每日饮水目标为 2000ml
  notificationEnabled: true, // 默认开启消息推送
  fitnessExerciseMinutesInfoDismissed: false, // 默认显示锻炼分钟说明
  fitnessActiveHoursInfoDismissed: false, // 默认显示活动小时说明
  waterReminderEnabled: true, // 默认关闭喝水提醒
  waterReminderStartTime: '08:00', // 默认开始时间早上8点
  waterReminderEndTime: '22:00', // 默认结束时间晚上10点
  waterReminderInterval: 60, // 默认提醒间隔60分钟
};

/**
 * 获取用户偏好设置
 */
export const getUserPreferences = async (): Promise<UserPreferences> => {
  try {
    const quickWaterAmount = await AsyncStorage.getItem(PREFERENCES_KEYS.QUICK_WATER_AMOUNT);
    const waterGoal = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_GOAL);
    const notificationEnabled = await AsyncStorage.getItem(PREFERENCES_KEYS.NOTIFICATION_ENABLED);
    const fitnessExerciseMinutesInfoDismissed = await AsyncStorage.getItem(PREFERENCES_KEYS.FITNESS_EXERCISE_MINUTES_INFO_DISMISSED);
    const fitnessActiveHoursInfoDismissed = await AsyncStorage.getItem(PREFERENCES_KEYS.FITNESS_ACTIVE_HOURS_INFO_DISMISSED);
    const waterReminderEnabled = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_ENABLED);
    const waterReminderStartTime = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_START_TIME);
    const waterReminderEndTime = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_END_TIME);
    const waterReminderInterval = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_INTERVAL);

    return {
      quickWaterAmount: quickWaterAmount ? parseInt(quickWaterAmount, 10) : DEFAULT_PREFERENCES.quickWaterAmount,
      waterGoal: waterGoal ? parseInt(waterGoal, 10) : DEFAULT_PREFERENCES.waterGoal,
      notificationEnabled: notificationEnabled !== null ? notificationEnabled === 'true' : DEFAULT_PREFERENCES.notificationEnabled,
      fitnessExerciseMinutesInfoDismissed: fitnessExerciseMinutesInfoDismissed !== null ? fitnessExerciseMinutesInfoDismissed === 'true' : DEFAULT_PREFERENCES.fitnessExerciseMinutesInfoDismissed,
      fitnessActiveHoursInfoDismissed: fitnessActiveHoursInfoDismissed !== null ? fitnessActiveHoursInfoDismissed === 'true' : DEFAULT_PREFERENCES.fitnessActiveHoursInfoDismissed,
      waterReminderEnabled: waterReminderEnabled !== null ? waterReminderEnabled === 'true' : DEFAULT_PREFERENCES.waterReminderEnabled,
      waterReminderStartTime: waterReminderStartTime || DEFAULT_PREFERENCES.waterReminderStartTime,
      waterReminderEndTime: waterReminderEndTime || DEFAULT_PREFERENCES.waterReminderEndTime,
      waterReminderInterval: waterReminderInterval ? parseInt(waterReminderInterval, 10) : DEFAULT_PREFERENCES.waterReminderInterval,
    };
  } catch (error) {
    console.error('获取用户偏好设置失败:', error);
    return DEFAULT_PREFERENCES;
  }
};

/**
 * 设置快速添加饮水的默认值
 * @param amount 饮水量（毫升）
 */
export const setQuickWaterAmount = async (amount: number): Promise<void> => {
  try {
    // 确保值在合理范围内（50ml - 1000ml）
    const validAmount = Math.max(50, Math.min(1000, amount));
    await AsyncStorage.setItem(PREFERENCES_KEYS.QUICK_WATER_AMOUNT, validAmount.toString());
  } catch (error) {
    console.error('设置快速添加饮水默认值失败:', error);
    throw error;
  }
};

/**
 * 获取快速添加饮水的默认值
 */
export const getQuickWaterAmount = async (): Promise<number> => {
  try {
    const amount = await AsyncStorage.getItem(PREFERENCES_KEYS.QUICK_WATER_AMOUNT);
    return amount ? parseInt(amount, 10) : DEFAULT_PREFERENCES.quickWaterAmount;
  } catch (error) {
    console.error('获取快速添加饮水默认值失败:', error);
    return DEFAULT_PREFERENCES.quickWaterAmount;
  }
};

/**
 * 设置每日饮水目标
 * @param goal 饮水目标（毫升）
 */
export const setWaterGoalToStorage = async (goal: number): Promise<void> => {
  try {
    // 确保值在合理范围内（500ml - 5000ml）
    const validGoal = Math.max(500, Math.min(5000, goal));
    await AsyncStorage.setItem(PREFERENCES_KEYS.WATER_GOAL, validGoal.toString());
  } catch (error) {
    console.error('设置每日饮水目标失败:', error);
    throw error;
  }
};

/**
 * 获取每日饮水目标
 */
export const getWaterGoalFromStorage = async (): Promise<number> => {
  try {
    const goal = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_GOAL);
    return goal ? parseInt(goal, 10) : DEFAULT_PREFERENCES.waterGoal;
  } catch (error) {
    console.error('获取每日饮水目标失败:', error);
    return DEFAULT_PREFERENCES.waterGoal;
  }
};

/**
 * 设置消息推送开关
 * @param enabled 是否开启消息推送
 */
export const setNotificationEnabled = async (enabled: boolean): Promise<void> => {
  try {
    await AsyncStorage.setItem(PREFERENCES_KEYS.NOTIFICATION_ENABLED, enabled.toString());
  } catch (error) {
    console.error('设置消息推送开关失败:', error);
    throw error;
  }
};

/**
 * 获取消息推送开关状态
 */
export const getNotificationEnabled = async (): Promise<boolean> => {
  try {
    const enabled = await AsyncStorage.getItem(PREFERENCES_KEYS.NOTIFICATION_ENABLED);
    return enabled !== null ? enabled === 'true' : DEFAULT_PREFERENCES.notificationEnabled;
  } catch (error) {
    console.error('获取消息推送开关状态失败:', error);
    return DEFAULT_PREFERENCES.notificationEnabled;
  }
};

/**
 * 设置健身锻炼分钟说明已阅读状态
 * @param dismissed 是否已阅读
 */
export const setFitnessExerciseMinutesInfoDismissed = async (dismissed: boolean): Promise<void> => {
  try {
    await AsyncStorage.setItem(PREFERENCES_KEYS.FITNESS_EXERCISE_MINUTES_INFO_DISMISSED, dismissed.toString());
  } catch (error) {
    console.error('设置健身锻炼分钟说明已阅读状态失败:', error);
    throw error;
  }
};

/**
 * 获取健身锻炼分钟说明已阅读状态
 */
export const getFitnessExerciseMinutesInfoDismissed = async (): Promise<boolean> => {
  try {
    const dismissed = await AsyncStorage.getItem(PREFERENCES_KEYS.FITNESS_EXERCISE_MINUTES_INFO_DISMISSED);
    return dismissed !== null ? dismissed === 'true' : DEFAULT_PREFERENCES.fitnessExerciseMinutesInfoDismissed;
  } catch (error) {
    console.error('获取健身锻炼分钟说明已阅读状态失败:', error);
    return DEFAULT_PREFERENCES.fitnessExerciseMinutesInfoDismissed;
  }
};

/**
 * 设置健身活动小时说明已阅读状态
 * @param dismissed 是否已阅读
 */
export const setFitnessActiveHoursInfoDismissed = async (dismissed: boolean): Promise<void> => {
  try {
    await AsyncStorage.setItem(PREFERENCES_KEYS.FITNESS_ACTIVE_HOURS_INFO_DISMISSED, dismissed.toString());
  } catch (error) {
    console.error('设置健身活动小时说明已阅读状态失败:', error);
    throw error;
  }
};

/**
 * 获取健身活动小时说明已阅读状态
 */
export const getFitnessActiveHoursInfoDismissed = async (): Promise<boolean> => {
  try {
    const dismissed = await AsyncStorage.getItem(PREFERENCES_KEYS.FITNESS_ACTIVE_HOURS_INFO_DISMISSED);
    return dismissed !== null ? dismissed === 'true' : DEFAULT_PREFERENCES.fitnessActiveHoursInfoDismissed;
  } catch (error) {
    console.error('获取健身活动小时说明已阅读状态失败:', error);
    return DEFAULT_PREFERENCES.fitnessActiveHoursInfoDismissed;
  }
};

/**
 * 设置喝水提醒开关
 * @param enabled 是否开启喝水提醒
 */
export const setWaterReminderEnabled = async (enabled: boolean): Promise<void> => {
  try {
    await AsyncStorage.setItem(PREFERENCES_KEYS.WATER_REMINDER_ENABLED, enabled.toString());
  } catch (error) {
    console.error('设置喝水提醒开关失败:', error);
    throw error;
  }
};

/**
 * 获取喝水提醒开关状态
 */
export const getWaterReminderEnabled = async (): Promise<boolean> => {
  try {
    const enabled = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_ENABLED);
    return enabled !== null ? enabled === 'true' : DEFAULT_PREFERENCES.waterReminderEnabled;
  } catch (error) {
    console.error('获取喝水提醒开关状态失败:', error);
    return DEFAULT_PREFERENCES.waterReminderEnabled;
  }
};

/**
 * 设置喝水提醒开始时间
 * @param startTime 开始时间，格式为 "HH:mm"
 */
export const setWaterReminderStartTime = async (startTime: string): Promise<void> => {
  try {
    await AsyncStorage.setItem(PREFERENCES_KEYS.WATER_REMINDER_START_TIME, startTime);
  } catch (error) {
    console.error('设置喝水提醒开始时间失败:', error);
    throw error;
  }
};

/**
 * 获取喝水提醒开始时间
 */
export const getWaterReminderStartTime = async (): Promise<string> => {
  try {
    const startTime = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_START_TIME);
    return startTime || DEFAULT_PREFERENCES.waterReminderStartTime;
  } catch (error) {
    console.error('获取喝水提醒开始时间失败:', error);
    return DEFAULT_PREFERENCES.waterReminderStartTime;
  }
};

/**
 * 设置喝水提醒结束时间
 * @param endTime 结束时间，格式为 "HH:mm"
 */
export const setWaterReminderEndTime = async (endTime: string): Promise<void> => {
  try {
    await AsyncStorage.setItem(PREFERENCES_KEYS.WATER_REMINDER_END_TIME, endTime);
  } catch (error) {
    console.error('设置喝水提醒结束时间失败:', error);
    throw error;
  }
};

/**
 * 获取喝水提醒结束时间
 */
export const getWaterReminderEndTime = async (): Promise<string> => {
  try {
    const endTime = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_END_TIME);
    return endTime || DEFAULT_PREFERENCES.waterReminderEndTime;
  } catch (error) {
    console.error('获取喝水提醒结束时间失败:', error);
    return DEFAULT_PREFERENCES.waterReminderEndTime;
  }
};

/**
 * 设置喝水提醒间隔时间
 * @param interval 间隔时间（分钟），范围 30-180
 */
export const setWaterReminderInterval = async (interval: number): Promise<void> => {
  try {
    // 确保值在合理范围内（30-180分钟）
    const validInterval = Math.max(30, Math.min(180, interval));
    await AsyncStorage.setItem(PREFERENCES_KEYS.WATER_REMINDER_INTERVAL, validInterval.toString());
  } catch (error) {
    console.error('设置喝水提醒间隔时间失败:', error);
    throw error;
  }
};

/**
 * 获取喝水提醒间隔时间
 */
export const getWaterReminderInterval = async (): Promise<number> => {
  try {
    const interval = await AsyncStorage.getItem(PREFERENCES_KEYS.WATER_REMINDER_INTERVAL);
    return interval ? parseInt(interval, 10) : DEFAULT_PREFERENCES.waterReminderInterval;
  } catch (error) {
    console.error('获取喝水提醒间隔时间失败:', error);
    return DEFAULT_PREFERENCES.waterReminderInterval;
  }
};

/**
 * 获取完整的喝水提醒配置
 */
export const getWaterReminderSettings = async () => {
  try {
    const [enabled, startTime, endTime, interval] = await Promise.all([
      getWaterReminderEnabled(),
      getWaterReminderStartTime(),
      getWaterReminderEndTime(),
      getWaterReminderInterval(),
    ]);

    return {
      enabled,
      startTime,
      endTime,
      interval,
    };
  } catch (error) {
    console.error('获取喝水提醒配置失败:', error);
    return {
      enabled: DEFAULT_PREFERENCES.waterReminderEnabled,
      startTime: DEFAULT_PREFERENCES.waterReminderStartTime,
      endTime: DEFAULT_PREFERENCES.waterReminderEndTime,
      interval: DEFAULT_PREFERENCES.waterReminderInterval,
    };
  }
};

/**
 * 批量设置喝水提醒配置
 */
export const setWaterReminderSettings = async (settings: {
  enabled: boolean;
  startTime: string;
  endTime: string;
  interval: number;
}): Promise<void> => {
  try {
    await Promise.all([
      setWaterReminderEnabled(settings.enabled),
      setWaterReminderStartTime(settings.startTime),
      setWaterReminderEndTime(settings.endTime),
      setWaterReminderInterval(settings.interval),
    ]);
  } catch (error) {
    console.error('批量设置喝水提醒配置失败:', error);
    throw error;
  }
};

/**
 * 重置所有用户偏好设置为默认值
 */
export const resetUserPreferences = async (): Promise<void> => {
  try {
    await AsyncStorage.removeItem(PREFERENCES_KEYS.QUICK_WATER_AMOUNT);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.NOTIFICATION_ENABLED);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.FITNESS_EXERCISE_MINUTES_INFO_DISMISSED);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.FITNESS_ACTIVE_HOURS_INFO_DISMISSED);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.WATER_REMINDER_ENABLED);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.WATER_REMINDER_START_TIME);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.WATER_REMINDER_END_TIME);
    await AsyncStorage.removeItem(PREFERENCES_KEYS.WATER_REMINDER_INTERVAL);
  } catch (error) {
    console.error('重置用户偏好设置失败:', error);
    throw error;
  }
};