require 'net/http'

module ActiveMerchant #:nodoc:
  module Billing #:nodoc:
    module Integrations #:nodoc:
      module Epay
        class Notification < ActiveMerchant::Billing::Integrations::Notification
					
					CURRENCY_CODES = {
						:ADP => '020', :AED => '784', :AFA => '004', :ALL => '008', :AMD => '051',
						:ANG => '532', :AOA => '973', :ARS => '032', :AUD => '036', :AWG => '533',
						:AZM => '031', :BAM => '977', :BBD => '052', :BDT => '050', :BGL => '100',
						:BGN => '975', :BHD => '048', :BIF => '108', :BMD => '060', :BND => '096',
						:BOB => '068', :BOV => '984', :BRL => '986', :BSD => '044', :BTN => '064',
						:BWP => '072', :BYR => '974', :BZD => '084', :CAD => '124', :CDF => '976',
						:CHF => '756', :CLF => '990', :CLP => '152', :CNY => '156', :COP => '170',
						:CRC => '188', :CUP => '192', :CVE => '132', :CYP => '196', :CZK => '203',
						:DJF => '262', :DKK => '208', :DOP => '214', :DZD => '012', :ECS => '218',
						:ECV => '983', :EEK => '233', :EGP => '818', :ERN => '232', :ETB => '230',
						:EUR => '978', :FJD => '242', :FKP => '238', :GBP => '826', :GEL => '981',
						:GHC => '288', :GIP => '292', :GMD => '270', :GNF => '324', :GTQ => '320',
						:GWP => '624', :GYD => '328', :HKD => '344', :HNL => '340', :HRK => '191',
						:HTG => '332', :HUF => '348', :IDR => '360', :ILS => '376', :INR => '356',
						:IQD => '368', :IRR => '364', :ISK => '352', :JMD => '388', :JOD => '400',
						:JPY => '392', :KES => '404', :KGS => '417', :KHR => '116', :KMF => '174',
						:KPW => '408', :KRW => '410', :KWD => '414', :KYD => '136', :KZT => '398',
						:LAK => '418', :LBP => '422', :LKR => '144', :LRD => '430', :LSL => '426',
						:LTL => '440', :LVL => '428', :LYD => '434', :MAD => '504', :MDL => '498',
						:MGF => '450', :MKD => '807', :MMK => '104', :MNT => '496', :MOP => '446',
						:MRO => '478', :MTL => '470', :MUR => '480', :MVR => '462', :MWK => '454',
						:MXN => '484', :MXV => '979', :MYR => '458', :MZM => '508', :NAD => '516',
						:NGN => '566', :NIO => '558', :NOK => '578', :NPR => '524', :NZD => '554',
						:OMR => '512', :PAB => '590', :PEN => '604', :PGK => '598', :PHP => '608',
						:PKR => '586', :PLN => '985', :PYG => '600', :QAR => '634', :ROL => '642',
						:RUB => '643', :RUR => '810', :RWF => '646', :SAR => '682', :SBD => '090',
						:SCR => '690', :SDD => '736', :SEK => '752', :SGD => '702', :SHP => '654',
						:SIT => '705', :SKK => '703', :SLL => '694', :SOS => '706', :SRG => '740',
						:STD => '678', :SVC => '222', :SYP => '760', :SZL => '748', :THB => '764',
						:TJS => '972', :TMM => '795', :TND => '788', :TOP => '776', :TPE => '626',
						:TRL => '792', :TRY => '949', :TTD => '780', :TWD => '901', :TZS => '834',
						:UAH => '980', :UGX => '800', :USD => '840', :UYU => '858', :UZS => '860',
						:VEB => '862', :VND => '704', :VUV => '548', :XAF => '950', :XCD => '951',
						:XOF => '952', :XPF => '953', :YER => '886', :YUM => '891', :ZAR => '710',
						:ZMK => '894', :ZWD => '716'
					}
					
          def complete?
            Integer(transaction_id) > 0
          end 

          def item_id
            params['orderid']
          end

          def transaction_id
            params['txnid']
          end

          def received_at
            Time.mktime(params['date'][0..3], params['date'][4..5], params['date'][6..7], params['time'][0..1], params['time'][2..3])
          end

          def gross
            "%.2f" % (gross_cents / 100.0)
          end

          def gross_cents
            params['amount'].to_i
          end

          def test?
            return false
          end

          %w(txnid orderid amount currency date time hash fraud payercountry issuercountry txnfee subscriptionid paymenttype cardno).each do |attr|
            define_method(attr) do
              params[attr]
            end
          end
					
          def currency
            CURRENCY_CODES.invert[params['currency']].to_s
          end
					
					def amount
            Money.new(params['amount'].to_i, currency)
          end

          def generate_md5string
						md5string = String.new
						for line in @raw.split('&')    
							key, value = *line.scan( %r{^([A-Za-z0-9_.]+)\=(.*)$} ).flatten
							md5string += params[key] if key != 'hash'
						end
						return md5string + @options[:credential3]
          end
          
          def generate_md5hash
            Digest::MD5.hexdigest(generate_md5string)
          end
          
          def acknowledge      
            generate_md5hash == params['hash']
          end
					
        end
      end
    end
  end
end