A simple Ruby Script that sends emails of the UK Top 40 singles charts

top40mailer.rb

#!/usr/bin/env ruby

require "http"
require 'json'
require 'mail'

class Charts
	attr_accessor :final

    def initialize(number=10)
        @singles = HTTP.get("http://ben-major.co.uk/labs/top40/api/singles/").to_s
        @number = number
        @final = parse_singles
    end

#singles = HTTP.get("http://ben-major.co.uk/labs/top40/api/singles/").to_s
#singles = File.read('singles.json')
    def parse_singles
    	output = ""
        sjson = JSON.parse(@singles)
        if @number > 40
        	@number = 40
        end
        sjson['entries'].each do |title|
            #Get the number of specified songs in the Chart
            unless title['position'].to_i > @number
                output += "#{title['position']}. #{title['title']} - #{title['artist']}\n"
            end
        end
        return output
    end
end

class Messenger
	attr_reader :content

	def initialize(charts)
		@content = charts.final.to_s

		Mail.defaults do
	      delivery_method :smtp, {
	        :port      => 587,
	        :address   => "smtp.mandrillapp.com",
	        :user_name => ENV['MANDRILL_USERNAME'],
	        :password  => ENV['MANDRILL_PASSWORD']
      		}
    	end
    end

    def send_plain_email
        mail = Mail.new do
          from    'kev@kevgathuku.com'
          to      'kevgathuku@gmail.com'
          subject 'Top 40 Charts Test email'
        end

        header = "Here is your Top 40 Chart for the week \n"
        mail.body =  header + @content

        return mail
    end
end

if __FILE__ == $0
    top = Charts.new
    #puts top.final.to_s
    mailer = Messenger.new(top)
    #puts mailer.send_plain_email.to_s
    mailer.send_plain_email.deliver
end