# -------------------------------------------------------------------------
# Copyright (c) 2009-2010 Sem4r sem4ruby@gmail.com
# 
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# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# -------------------------------------------------------------------------

module Sem4r
  class BulkMutateJob
    include SoapAttributes

    attr_reader :id
    attr_accessor :campaign_id
    attr_reader :operations

    g_accessor :status

    def initialize(&block)
      @operations = []
      if block_given?
        block.arity < 1 ? instance_eval(&block) : block.call(self)
      end
    end

    def add_operation(operation)
      @operations << operation
      self
    end

    def empty?
      @operations.empty?
    end

    def add( something )
      case something
      when AdGroupTextAd
        ad_operation = AdGroupAdOperation.new
        ad_operation.add something
      else
        raise "how you suppose I must do when incounter a #{something.class}?"
      end
      self
    end

    def to_xml(tag)
      xml =""
      
      if tag
        xml += "<operand xsi:type='BulkMutateJob'>"
      end
      xml += <<-EOS
      <request>
        <partIndex>0</partIndex>
        <operationStreams>
          <scopingEntityId>
            <type>CAMPAIGN_ID</type>
            <value>#{campaign_id}</value>
          </scopingEntityId>
      EOS

      if @operations
        @operations.each do |operation|
          xml += operation.to_xml('operations')
        end
      end
   
      xml +=<<-EOS
        </operationStreams>
      </request>
      <numRequestParts>1</numRequestParts>
      EOS

      if tag
        xml += "</operand>"
      end
    end

    def self.from_element(el)
      new do
        @id          = el.elements["id"].text.strip.to_i
        status         el.elements["status"].text
      end
    end

    def to_s
      "#{@id} #{status}"
    end

  end

end