LINE Messaging APIを利用して電車遅延情報を通知する

train_chk3.rb

# coding: utf-8

require 'rest-client'
require 'json'
require 'date'
require 'holiday_jp'
require 'gmail'

class MyMail
  ID = "GMail address"
  PW = "GMail password"
  TO = "mail send to address"

  def self.send(sbj,msg)
    gmail = Gmail.new(ID, PW)

    message =
      gmail.generate_message do
        to TO
        subject sbj
        body msg
      end

    gmail.deliver(message)
    gmail.logout
  end
end

class LineBot
  TOKEN = "Channel Access Token"
  TO    = "送信先のID"

  def self.send(msg)
    headers = {
      "Content-Type"  => "application/json; charser=UTF-8",
      "Authorization" => "Bearer #{TOKEN}",
    }

    params = {
      to: TO,
      messages: [
        {
          type: "text",
          text: msg,
        }
      ]
    }

    RestClient.post "https://api.line.me/v2/bot/message/push", params.to_json, headers
  end
end


class TrainChk
  @@cache = nil

  def self.delay?(company,line)
    if @@cache.nil?
      begin
        response = RestClient.get "https://rti-giken.jp/fhc/api/train_tetsudo/delay.json"
      rescue => e
        p e.response
        return
      end
      json = JSON.parser.new(response.to_str)
      hash =  json.parse()
      @@cache = hash
    end
    hash = @@cache
    ret = false
    hash.each do |h|
      ret = true if h["company"] == company and h["name"] == line
    end
    ret
  end
end

if HolidayJp.holiday?(Date.today)
  print "#{Time.now.to_s} holiday!\n"
  exit
end

ret = []
[
  ["JR東日本","山手線"],
  ["JR東日本","東海道線"],
  ["JR東日本","中央線快速電"],
  ["東京メトロ","丸ノ内線"],
  ["東京メトロ","東西線"],
].each do |a|
  ret.push(a) if TrainChk.delay?(a[0],a[1])
end

unless ret.size == 0
  msg = "電車遅延が発生しています。"
  ret.each do |a|
    msg = msg + "\n　#{a[1]}"
  end

  begin
    LineBot.send(msg)
  rescue => e
    print "#{Time.now.to_s} line bot error raise!\n"
    MyMail.send "line bot error raise",e.response
    exit
  end
  print "#{Time.now.to_s} delay train!\n"
else
  print "#{Time.now.to_s} no delay train.\n"
end