Navitimeをスクレイピングして電車時刻検索を行う

navitime-train-search.coffee

# ---------------------
# Description
# ---------------------
# hubot用の電車時刻検索スクリプト(Navitimeをスクレイピング)
# 'train 銀座 渋谷 1730' -> 銀座を出て17:30に渋谷に到着する電車を検索
# 'train now 銀座 渋谷'  -> いまから銀座を出て渋谷に到着する電車を検索

module.exports = (robot) ->

  # 到着時刻を指定して電車検索
  robot.hear /train (\S*) (\S*) (\d{4})/i, (response) ->
    nowTime      = new Date()
    startStation = response.match[1]
    goalStation  = response.match[2]
    month        = nowTime.getFullYear() + '/' + (nowTime.getMonth() + 1)
    day          = nowTime.getDate()
    hour         = response.match[3].slice(0,2)
    minute       = response.match[3].slice(2)
    if(nowTime.getHours() > Number(hour))
      day += 1; # 現在時刻より前の時刻を記載した場合、次の日の検索を行う
    basis        = 0 # 到着時刻で検索
    response.send month + '/' + day + ' ' + hour + ':' + minute + ' に' + goalStation + '駅に到着する'
    searchTrain(startStation, goalStation, month, day, hour, minute, basis, response)
      
  # 現在時刻から出発する電車検索
  robot.hear /train now (\S*) (\S*)/i, (response) ->
    nowTime      = new Date()
    startStation = response.match[1]
    goalStation  = response.match[2]
    month        = nowTime.getFullYear() + '/' + (nowTime.getMonth() + 1)
    day          = nowTime.getDate()
    hour         = nowTime.getHours()
    minute       = nowTime.getMinutes()
    basis        = 1 # 出発時刻で検索
    response.send 'いまから' + goalStation + '駅に向かう'
    searchTrain(startStation, goalStation, month, day, hour, minute, basis, response)
    
  # Navitimeスクレイピング関数
  searchTrain = (startStation, goalStation, month, day, hour, minute, basis, response) ->
    searchInfo = {
        orvStationName: startStation,
        dnvStationName: goalStation,
        month         : month,
        day           : day,
        hour          : hour,
        minute        : minute,
        basis         : basis,
      }
    client.fetch 'https://www.navitime.co.jp/', (err, $, res, body) ->
      $('#transfer_form').submit searchInfo, (err, $, res, body) ->
        response.send startStation + ' ' + $('.summary_list li:first-child dt').text() + ' ' + goalStation
        response.send res.request.uri.href