module Spree
  class PaymentMethod < ActiveRecord::Base
    DISPLAY =  [:both, :front_end, :back_end]
    default_scope where(:deleted_at => nil)

    scope :production, where(:environment => 'production')

    attr_accessible :name, :description, :environment, :display_on, :active

    def self.providers
      Rails.application.config.spree.payment_methods
    end

    def provider_class
      raise 'You must implement provider_class method for this gateway.'
    end

    # The class that will process payments for this payment type, used for @payment.source
    # e.g. Creditcard in the case of a the Gateway payment type
    # nil means the payment method doesn't require a source e.g. check
    def payment_source_class
      raise 'You must implement payment_source_class method for this gateway.'
    end

    def self.available(display_on='both')
      all.select { |p| p.active && (p.display_on == display_on.to_s || p.display_on.blank?) && (p.environment == Rails.env || p.environment.blank?) }
    end

    def self.active?
      self.count(:conditions => { :type => self.to_s, :environment => Rails.env, :active => true }) > 0
    end

    # TODO: Remove this method by 1.0
    def self.current
      ActiveSupport::Deprecation.warn "Gateway.current is deprecated and will be removed in Spree > 1.0. Use current_order.payment_method instead."
      first(:conditions => { :active => true, :environment => Rails.env })
    end

    def method_type
      type.demodulize.downcase
    end

    def destroy
      self.update_attribute(:deleted_at, Time.now.utc)
    end

    def self.find_with_destroyed *args
      self.with_exclusive_scope { find(*args) }
    end

    def payment_profiles_supported?
      false
    end

    def source_required?
      true
    end
  end
end
