tlk/src/list.js

查询指定车次的所有站点的余票信息

import _ from 'lodash'

import featchStationList from './apis/stationList'
import featchTrains from './apis/trains'
import print from './printAll'

export default async (
  train_no,
  depart_station,
  arrive_station,
  depart_date,
) => {
  const stationList = await featchStationList(train_no, depart_date)

  // 上车站点的索引
  const depart_index = _.findIndex(
    stationList,
    s => s.station_name === depart_station,
  )

  // 到达站点的索引
  const arrive_index = _.findIndex(
    stationList,
    s => s.station_name === arrive_station,
  )

  /**
   * 上车站点之前的站点列表
   */
  const beforStations = stationList.slice(0, depart_index + 1)
  const afterStations = stationList.slice(arrive_index)

  // console.log('be: ', beforStations)
  // console.log('af: ', afterStations)

  // TODO: 有问题
  const jjobs = []
  beforStations.map(bs => {
    for (const as of afterStations) {
      jjobs.push(
        queryTicket(train_no, bs.station_name, as.station_name, depart_date),
      )
    }
  })
  // console.log('jjobs: ', jjobs)

  const results = await Promise.all(jjobs)

  // for (const r of results) {
  //   console.log('r: ', r)
  // }

  print(results)

  // /**
  //  * 向前
  //  */
  // if (depart_index > 0) {
  //   // eslint-disable-next-line
  //   console.log(
  //     '提前上车方案：',
  //     train_no,
  //     depart_station,
  //     arrive_station,
  //     depart_date,
  //   )

  //   const jb = stationList
  //     .slice(0, depart_index + 1)
  //     .map(s =>
  //       queryTicket(train_no, s.station_name, arrive_station, depart_date),
  //     )
  //   const res = await Promise.all(jb)
  //   print(res)
  // }

  // /**
  //  * 向后
  //  */
  // // eslint-disable-next-line
  // console.log(
  //   '延后下车方案：',
  //   train_no,
  //   depart_station,
  //   arrive_station,
  //   depart_date,
  // )
  // const jobs = stationList
  //   .slice(arrive_index + 1)
  //   .map(s =>
  //     queryTicket(train_no, depart_station, s.station_name, depart_date),
  //   )
  // const res = await Promise.all(jobs)
  // print(res)
}

async function queryTicket(
  train_no,
  depart_station,
  arrive_station,
  depart_date,
) {
  // console.log('==> ', train_no, depart_station, arrive_station, depart_date)

  const trains = await featchTrains(depart_station, arrive_station, depart_date)

  const train = _.find(trains, t => t.TrainNumber === train_no)

  return train
}