require 'open-uri'
require 'nokogiri'  #Gem for scraping
require 'json'  #Call to use json

#Parse the url
url = 'http://tetsudo.rti-giken.jp/free/delay.json'
html = open(url).read  
doc = Nokogiri::HTML(html, url)

#Parse to Json format and convert to hash
hash = JSON.parse doc.css("body").inner_text

#Enter the route name you want to check as standard and input_Store in train
puts "Please enter the route for which you want to know the delay status.Example: Keihin Tohoku Line"
input_train = gets.chomp

# delayed_prepare trains array variable
delayed_trains = Array.new
# input_Delayed route name containing train string and updated date / time delayed_Store in trains
hash.each {|train| delayed_train << train["name"] + \
            '(Update date and time: ' + Time.at(train["lastupdate_gmt"], in: "+09:00").strftime("%Y-%m-%d %H:%M:%S").to_s + ')' \
            if train["name"].include? input_train }

#If the array is empty, there is no route to be delayed, otherwise the route name is output.
if delayed_trains.empty?
  puts "Send me "#{input_train}There is no delay in the routes that include the characters"
else
  puts delayed_trains.join(",") + "Seems to be delayed\n Please see the railway company website for details."
end

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