module Conekta
  class Error < Exception
    attr_reader :message
    attr_reader :message_to_purchaser
    attr_reader :type
    attr_reader :code
    attr_reader :param

    def initialize(message=nil, message_to_purchaser=nil, type=nil, code=nil, param=nil)
      @message = message
      @message_to_purchaser = message_to_purchaser
      @type = type
      @code = code
      @param = param
    end
    def class_name
      self.class.name.split('::')[-1]
    end
    def self.error_handler(resp, code)
      if resp.instance_of?(Hash)
        @message = resp["message"] if resp.has_key?('message')
        @message_to_purchaser = resp["message_to_purchaser"] if resp.has_key?('message_to_purchaser')
        @type = resp["type"] if resp.has_key?('type')
        @code = resp["code"] if resp.has_key?('code')
        @param = resp["param"] if resp.has_key?('param')
      end
      if code == nil or code == 0 or code == nil or code == ""
        raise NoConnectionError.new(
          I18n.t('error.requestor.connection',  { base: Conekta.api_base, locale: :en }),
          I18n.t('error.requestor.connection_purchaser',  { locale: Conekta.locale.to_sym }))
      end
      case code
      when 400
        raise MalformedRequestError.new(@message, @message_to_purchaser, @type, @code, @params)
      when 401
        raise AuthenticationError.new(@message, @message_to_purchaser, @type, @code, @params)
      when 402
        raise ProcessingError.new(@message, @message_to_purchaser, @type, @code, @params)
      when 404
        raise ResourceNotFoundError.new(@message, @message_to_purchaser, @type, @code, @params)
      when 422
        raise ParameterValidationError.new(@message, @message_to_purchaser, @type, @code, @params)
      when 500
        raise ApiError.new(@message, @message_to_purchaser, @type, @code, @params)
      else
        raise Error.new(@message, @message_to_purchaser, @type, @code, @params)
      end
    end
  end
  class ApiError < Error    
  end
  
  class NoConnectionError < Error 
  end

  class AuthenticationError < Error 
  end

  class ParameterValidationError < Error 
  end

  class ProcessingError < Error 
  end

  class ResourceNotFoundError < Error 
  end

  class MalformedRequestError < Error 
  end
end