Regalli Test: Calculate the average bill amount

regalli.rb

module Regalli
  class Account
    require 'json'
    require "base64"
    require 'net/http'

    def initialize
      @data = JSON.parse(response)
    end

    def send_average
      puts "average #{average}"

      uri = URI.parse("https://deudas.herokuapp.com/")
      http = Net::HTTP.new(uri.host, uri.port)
      http.use_ssl = true

      jobj = {"average" => average.to_s}

      response = http.put("/accounts/#{@data['uuid']}", JSON.dump(jobj), {"Content-Type" => "application/json"})

      puts "Response #{response.code} #{response.message}: #{response.body}"
    end

    def create_account
      uri = URI('https://deudas.herokuapp.com/accounts')
      response = Net::HTTP.post_form(uri, 'name' => 'israel', 'email' => '[email protected]')
      puts "Response #{response.code} #{response.message}: #{response.body}"
      # return a json response...
    end

    private
      def total_amount_decoded
        @data['bills'].inject(0){|sum,bill| sum + Base64.decode64(bill['amount']).to_f }
      end

      def average
        total_amount_decoded / @data['bills'].size
      end

      # json response, harcoded
      def response
        '{
          "type": "account",
          "uuid": "55d07c93-7503-4853-87a9-f7d6d99c4da7",
          "bills": [
            {
              "type": "bill",
              "statement_date": "2016-10-01",
              "amount": "MTUuMA==\n"
            },
            {
              "type": "bill",
              "statement_date": "2016-11-01",
              "amount": "MjAuNQ==\n"
            },
            {
              "type": "bill",
              "statement_date": "2016-12-01",
              "amount": "MTAwLjA=\n"
            },
            {
              "type": "bill",
              "statement_date": "2017-01-01",
              "amount": "MTAuMjU=\n"
            }
          ]
        }'
      end
  end
end

# Use our Module
r = Regalli::Account.new
# r.create_account
r.send_average