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Task.rb
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Task.rb
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#Title: Ruby task and Bonus and Extra Bonus (chocolate :D)
#Author: Ibrahim Ali Mohamed
#Team: coolSoft
#attachment "demo.txt"
require 'net/http'
def External_API_request(a , b="EGP")
uri = "http://rate-exchange.appspot.com/currency?from=#{a}&to=#{b}"
string = Net::HTTP.get(URI.parse(uri))
string = string.gsub(':', ',')
string = string.tr('{}','')
string = string.split(', ') #scan for word+char
#@@currencies[a] = string[3].to_f
return string
end
def load_day()
aFile = File.new("demo.txt", "r")
if !aFile
puts "error in file"
end
day = aFile.gets
aFile.close
return day.to_i
end
def convertion_found(data)
aFile = File.new("demo.txt", "r")
if !aFile
puts "error in file"
end
my_array = open('demo.txt').map { |line| line.split("\n")[0] }
#puts my_array[0].to_s
for i in 0...(my_array.length-1)
if data == my_array[i]
return my_array[i+1]
end
end
return false
end
class Numeric
@@currencies = {'USD' => 7.15, 'EUR' => 9.26, 'JPY' => 0.068, 'EGP' => 1.0}
@@currencies.each do |currency, rate|
define_method(currency) do
self * rate
end
alias_method "#{currency}s".to_sym, currency
end
def convert_currency(from,to)
first_currency = from.to_s.gsub(/s$/,'')
second_currency = to.to_s.gsub(/s$/,'')
data = first_currency + " " + second_currency
if(convertion_found(data) && load_day() == Time.now.day)
return ( convertion_found(data).to_f * self )
end
if(!convertion_found(data) )
data = External_API_request(first_currency,second_currency)
aFile = File.open("demo.txt" , 'a+')
if !aFile
puts "error in file"
end
aFile.puts first_currency + " " + second_currency
aFile.puts data[3]
aFile.close
return self * data[3].to_f
end
if(load_day()+1 == Time.now.day)
aFile = File.open("demo.txt" , 'w')
if !aFile
puts "error in file"
end
aFile.puts Time.now.day
aFile.close
end
end
def self.Add_currency(key_value)
key_value.each do |key, value|
@@currencies[key] = value
end
puts @@currencies
end
end
Numeric.Add_currency("riyal"=> 1.9)
puts 100.USD
puts 100.USDs
puts 100.convert_currency(:USD,:EUR)
puts 100.convert_currency(:USD,:EGP)
puts 10.convert_currency(:JPY,:EUR)
puts 100.convert_currency(:EGP,:USD)