'use strict';
const { CrudService } = require('naf-framework-mongoose-free/lib/service');
const { isNullOrUndefined, trimData } = require('naf-core').Util;
const { BusinessError, ErrorCode } = require('naf-core').Error;
const _ = require('lodash');
const assert = require('assert');
const { ObjectId } = require('mongoose').Types;

// 赛程信息
class ScheduleService extends CrudService {
  constructor(ctx) {
    super(ctx, 'schedule');
    this.model = this.ctx.model.Schedule;
  }
  /**
   * 通过团队创建人id查询赛程信息
   * @param {String} user_id 团队创建人id
   * @param {Object} options 查询附加参数
   */
  async getByTeamCreater({ user_id, ...query }, { skip = 0, limit = 0 } = {}) {
    // 用 id 查团队表 create_id:id; 获取团队id去查红方和蓝方的赛程信息
    const team = await this.ctx.model.Team.findOne({ create_id: user_id }, { _id: 1 });
    if (!team) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到该用户的团队信息');
    const condition = { $or: [{ red_id: team._id }, { blue_id: team._id }], ...query };
    const data = await this.model.find(condition).skip(parseInt(skip)).limit(parseInt(limit));
    const total = await this.model.count(condition);
    return { data, total };
  }

  async checkNeedNext(id) {
    const sch = await this.model.findById(id);
    const { red_branch, blue_branch, match_id, match_name, status } = sch;
    // 手动确定比赛结束,如果比赛不结束,那就不需要下面
    if (status !== '2') return;
    if (!red_branch || !blue_branch) return;
    // 有比分,有位置, 再看看同一轮其他比赛是不是有轮空的.有轮空的就不安排,没有轮空的就直接安排晋级比赛
    // 将胜利的队伍的属性取出来,以便下面生成新数据
    const winProp = [];
    const propList = [ 'id', 'name', 'logo', 'members' ];
    const winTeam = this.getWinTeam(sch);
    for (const p of propList) {
      winProp.push({ key: p, value: sch[`${winTeam}_${p}`] });
    }
    // 随便拿一个位置,主要是下面要用轮数去做查询
    const match_position = _.get(sch, 'red_position', _.get(sch, 'blue_position'));
    const mpl = match_position.split('-');
    const head = _.head(mpl);
    const mpReg = new RegExp(`${head}-`);
    const condition = { match_id, match_name, match_position: mpReg, is_bye: true };
    const has_bye = await this.model.count(condition);
    // 说明有轮空,让管理员去创建下一轮的所有比赛赛程
    if (has_bye > 1) return;
    /**
     * 没有轮空,直接创建比赛
     * 流程位置计算公式:
     * a:赛程轮数: _.head()
     * n:该轮队伍编号: _.last()
     * a - n/n+1 => a+1 - (n+1) / 2 ;
     * 条件: a>=1, n>=1 ,且n为奇数
     */
    const turn = parseInt(head) + 1;
    const last = _.last(mpl);
    let times;
    if (last % 2 > 0) {
      // 奇数,+1再/2 能算出下一轮的场次
      times = (parseInt(last) + 1) / 2;
    } else {
      times = parseInt(last) / 2;
    }
    const next_match_position = `${turn}-${times}`;
    // 先查询有没有  match_name: '晋级赛',
    let nextMatchCreateData = {
      match_id,
      match_name,
      match_position: next_match_position,
    };
    let nextMatch = await this.model.findOne(nextMatchCreateData);
    // 设置队伍数据的函数
    const setTeamData = (team, source) => {
      for (const obj of winProp) {
        const { key, value } = obj;
        source[`${team}_${key}`] = value;
      }
      return source;
    };
    if (nextMatch) {
      // 已经有了下场比赛的数据,做修改,将新数据放蓝队里
      // 修改,一定是将数据放入蓝队中,所以需要判断下蓝队和红队是不是一个队伍,看下id就行
      const nmRed_id = _.get(nextMatch, 'red_id');
      const winTeamId = _.get(
        winProp.find(f => f.key === 'id'),
        'value'
      );
      if (nmRed_id === winTeamId) return;
      nextMatch = setTeamData('blue', nextMatch);
      await nextMatch.save();
    } else {
      // 没有,将数据放红队里
      nextMatchCreateData = setTeamData('red', nextMatchCreateData);
      await this.model.create(nextMatchCreateData);
    }
  }
  // 根据比分Object获取胜利的队伍
  getWinTeam(data) {
    const { red_branch = 0, blue_branch = 0 } = data;
    if (red_branch > blue_branch) return 'red';
    return 'blue';
  }
}

module.exports = ScheduleService;