'use strict';

const Service = require('egg').Service;
const _ = require("lodash")
class ChanpinService extends Service {
  async index(params) {
    let { ctx } = this
    let modelLocal = ctx.model.Chanpin
    let returnData = { hasError: false, msg: "数据错误", list: [] }
    //新增
    let subType = params.subType
    let returnComponent = params.returnData || []
    let paramsLocal = _.omit(params, ["subType", "returnData", "url"])
    if (subType === "add") {
      paramsLocal = paramsLocal.list[0]
      paramsLocal["update_at"] = Date.now();
      let res = await modelLocal.create(paramsLocal)
      returnData.hasError = false
      returnData.msg = "数据新增成功"
    } else if (subType === "multi") {
      paramsLocal["update_at"] = Date.now();
      let res = await modelLocal.insertMany(paramsLocal.list)
      returnData.hasError = false
      returnData.msg = "批量新增成功"
    } else if (subType === "del") {
      let res = await modelLocal.updateMany({ _id: { $in: paramsLocal.ids } }, { isExit: 0, update_at: Date.now() })
      returnData.hasError = false
      returnData.msg = "数据删除成功"
    } else if (subType === "delAll") {
      await modelLocal.deleteMany({ "update_at": { $lt: Date.now() + 1000 * 60 * 60 * 24 } })
      returnData.hasError = false
      returnData.msg = "数据已全部删除"
    } else if (subType === "edit") {
      paramsLocal = paramsLocal.list[0]
      paramsLocal["update_at"] = Date.now();
      let res = await modelLocal.updateOne({ _id: paramsLocal._id }, paramsLocal)
      returnData.hasError = false
      returnData.msg = "数据更新成功"
    } else if (subType === "get") {
      let pageSize = paramsLocal.pageSize
      let currentPage = paramsLocal.currentPage
      let paramsLocalInfo = _.omit(paramsLocal, ["pageSize", "currentPage", "url"])
      let paramsLocalInfoNotDel = { ...paramsLocalInfo, isExit: 1 }
      let res = await modelLocal.find(paramsLocalInfoNotDel).sort({ update_at: -1 }).skip((currentPage - 1) * pageSize).limit(pageSize)
      let resData = [];
      for (let i = 0; i < res.length; i++) {
        let elei = res[i];
        let resObj = { _id: elei._id }
        if (returnComponent.length) {
          for (let j = 0; j < returnComponent.length; j++) {
            let elej = returnComponent[j];
            resObj[elej] = elei[elej]
          }
        } else {
          resObj = elei
        }
        resData.push(resObj)
      }
      returnData.hasError = false
      returnData.msg = "查询成功"
      returnData.list = resData
    }
    let allParamsLocalInfo = _.omit(paramsLocal, ["pageSize", "currentPage", "url", "list", "update_at"])
    let allParamsLocalInfoNotDel = { ...allParamsLocalInfo, isExit: 1 }
    let count = await modelLocal.find(allParamsLocalInfoNotDel).count()
    returnData["count"] = count
    return returnData
  }
}

module.exports = ChanpinService;