'use strict';

const assert = require('assert');
const Service = require('egg').Service;
class integralService extends Service {
  constructor(ctx) {
    super(ctx);
    this.model = this.ctx.model.Integral;
  }
  async create({ openid, name, integral }) {
    assert(name, '姓名不存在');
    assert(openid, 'openid不存在');
    assert(integral, '积分不存在');
    await this.service.integralLog.create({ openid, name, integral });
    try {
      const res = await this.model.create({ openid, name, integral });
      return { errcode: 0, errmsg: 'ok', data: res };
    } catch (error) {
      throw error;
    }
  }
  async update({ id, openid, name, integral }) {
    assert(id, 'id不存在');
    assert(name, '姓名不存在');
    assert(openid, 'openid不存在');
    assert(integral, '积分不存在');
    await this.service.integralLog.create({ openid, name, integral });
    try {
      await this.model.updateOne({ _id: id }, { openid, name, integral });
      return { errcode: 0, errmsg: 'ok', data: '' };
    } catch (error) {
      throw error;
    }
  }
  async delete({ id }) {
    assert(id, 'id不存在');
    try {
      await this.model.deleteOne({ _id: id });
      return { errcode: 0, errmsg: 'ok', data: '' };
    } catch (error) {
      throw error;
    }
  }
  async query({ skip, limit, openid, name, integral }) {
    const filter = {};
    const arr = { openid, name, integral };
    for (const e in arr) {
      const data = `{ "${e}": { "$regex": "${arr[e]}" } }`;
      if (arr[e]) {
        filter.$or = [];
        filter.$or.push(JSON.parse(data));
      }
    }
    try {
      const total = await this.model.find({ ...filter });
      let res;
      if (skip && limit) {
        res = await this.model.find({ ...filter }).skip(Number(skip) * Number(limit)).limit(Number(limit));
      } else {
        res = await this.model.find({ ...filter });
      }
      return { errcode: 0, errmsg: 'ok', data: res, total: total.length };
    } catch (error) {
      throw error;
    }
  }
  async increase({ openid, name, integral }) {
    assert(openid, 'openid不存在');
    assert(name, '姓名不存在');
    assert(integral, '积分不存在');
    try {
      await this.service.integralLog.create({ openid, name, integral });
      const one = await this.model.findOne({ openid });
      if (one) {
        const total = Number(integral) + Number(one.integral);
        await this.model.updateOne({ openid }, { integral: total });
        return { errcode: 0, errmsg: 'ok', data: '' };
      }
      await this.model.create({ openid, name, integral });
      return { errcode: 0, errmsg: 'ok', data: '' };
    } catch (error) {
      throw error;
    }
  }
  async reduce({ openid, name, integral }) {
    assert(openid, 'openid不存在');
    assert(name, '姓名不存在');
    assert(integral, '积分不存在');
    try {
      const one = await this.model.findOne({ openid });
      if (one) {
        const total = Number(one.integral) - Number(integral);
        await this.model.updateOne({ openid }, { integral: total });
        await this.service.integralLog.create({ openid, name, integral });
        return { errcode: 0, errmsg: 'ok', data: '' };
      }
      return { errcode: -1001, errmsg: '未查询到用户', data: '' };
    } catch (error) {
      throw error;
    }
  }
}

module.exports = integralService;