import {
  MissionStatus,
  ActivityStatus,
  MissionInfo,
  MissionActivityVO,
  AwardActivityVO,
} from '../types/mission';



/**
 * 判断任务是否可领取
 */
export function isMissionClaimable(mission: MissionInfo): boolean {
  return mission.missionStatus === 0;
}

/**
 * 判断任务是否已完成
 */
export function isMissionCompleted(mission: MissionInfo): boolean {
  return mission.missionStatus === 1;
}

/**
 * 判断任务是否已过期/抢完
 */
export function isMissionExpired(mission: MissionInfo): boolean {
  return mission.missionStatus === 2;
}

/**
 * 判断任务活动是否进行中
 */
export function isMissionActivityActive(activity: MissionActivityVO): boolean {
  const now = Date.now();
  return now >= activity.activityStartTime &&
    now <= activity.activityEndTime &&
    activity.activityStatus === 0;
}

/**
 * 根据时间获取任务活动状态文案
 */
export function getMissionActivityStatusText(activity: MissionActivityVO): string {
  const now = Date.now();

  // 如果活动状态不为0（进行中），则直接判断为已结束
  if (activity.activityStatus !== 0) {
    return '已结束';
  }

  // 未开始
  if (now < activity.activityStartTime) {
    return '未开始';
  }

  // 已结束
  if (now > activity.activityEndTime) {
    return '已结束';
  }

  // 进行中
  return '进行中';
}

/**
 * 判断奖励活动是否进行中
 */
export function isAwardActivityActive(activity: AwardActivityVO): boolean {
  const now = Date.now();
  return now >= activity.startTime &&
    now <= activity.endTime &&
    activity.status === 0;
}


/**
 * 获取任务状态描述
 */
export function getMissionStatusText(status: MissionStatus): string {
  switch (status) {
    case -1: return '未完成';
    case 0: return '可领取';
    case 1: return '已领取';
    case 2: return '已抢完';
    default: return '';
  }
}

/**
 * 获取活动状态描述
 */
export function getActivityStatusText(status: ActivityStatus): string {
  switch (status) {
    case -1: return '未开始';
    case 0: return '进行中';
    case 1: return '已结束';
    default: return '未知状态';
  }
}

/**
 * 获取任务剩余时间（毫秒）
 */
export function getMissionTimeRemaining(activity: MissionActivityVO): number {
  const now = Date.now();
  const endTime = activity.activityEndTime;

  return Math.max(0, endTime - now);
}

/**
 * 格式化时间差
 */
export function formatTimeRemaining(milliseconds: number): string {
  if (milliseconds <= 0) return '已结束';

  const seconds = Math.floor(milliseconds / 1000);
  const minutes = Math.floor(seconds / 60);
  const hours = Math.floor(minutes / 60);
  const days = Math.floor(hours / 24);

  if (days > 0) return `${days}天${hours % 24}小时`;
  if (hours > 0) return `${hours}小时${minutes % 60}分钟`;
  if (minutes > 0) return `${minutes}分钟`;
  return `${seconds}秒`;
}



/**
 * 过滤显示的任务
 */
export function filterVisibleMissions(missions: MissionInfo[]): MissionInfo[] {
  // console.log('过滤前的任务数量:', missions.length);
  // console.log('过滤前的任务详情:', missions.map(m => ({
  //   code: m.code,
  //   title: m.title,
  //   show: m.show,
  //   channelShow: m.channelShow
  // })));

  // 只根据 show 字段过滤，不过滤 channelShow 为 false 的任务
  const visibleMissions = missions.filter(mission => mission.show);

  // console.log('过滤后的任务数量:', visibleMissions.length);
  // console.log('过滤后的任务详情:', visibleMissions.map(m => ({
  //   code: m.code,
  //   title: m.title,
  //   show: m.show,
  //   channelShow: m.channelShow
  // })));

  return visibleMissions;
}