Eancom::Definition.create(name: 'D96A', type: :desadv) do |document, config|
  document.header do |header|
    header.segment Eancom::Edifact::UNA.new()

    header.segment Eancom::Edifact::UNB.new(
      syntax_identifier: 'UNOC',
      syntax_version_number: '3',
      interchange_sender_identification: config.header.interchange_sender_identification,
      sender_identifiction_code_qualifier: '14',
      interchange_recipient_identification: config.header.interchange_recipient_identification,
      recipient_identifiction_code_qualifier: '14',
      date: config.header.date,
      time: config.header.time,
      interchange_control_reference: config.header.interchange_control_reference,
      application_reference: 'DESADV',
      interchange_agreement_identifier: 'EANCOM'
    )

    header.segment Eancom::Edifact::UNH.new(
      message_reference_number: config.header.message_reference_number,
      message_type: config.header.message_type,
      message_version_number: config.header.message_version_number,
      message_release_number: config.header.message_release_number,
      controlling_agency: config.header.controlling_agency,
      association_assigned_code: config.header.association_assigned_code
    )
  end

  document.body do |body|
    body.segment Eancom::Edifact::BGM.new(
      document_name_code: '351',
      document_identifier: config.body.document_identifier,
      message_function_code: '9'
    )

    # Document Date
    body.segment Eancom::Edifact::DTM.new(
      type: '137',
      date_time: config.body.document_message_date_time,
      format: '102'
    )

    # Shipping Date
    body.segment Eancom::Edifact::DTM.new(
      type: '11',
      date_time: config.body.despatch_date_and_or_time,
      format: '102'
    )

    # Order Reference
    body.segment Eancom::Edifact::RFF.new(
      reference_code_qualifier: 'VN',
      reference_identifier: config.body.document_identifier
    )

    # Sender ILN
    body.segment Eancom::Edifact::NAD.new(
      party_function_code_qualifier: 'SU',
      party_identifier: config.header.interchange_sender_identification,
      code_list_responsible_agancy_code_1: '9'
    )

    # Manufacturer ILN
    body.segment Eancom::Edifact::NAD.new(
      party_function_code_qualifier: 'MF',
      party_identifier: config.header.interchange_sender_identification,
      code_list_responsible_agancy_code_1: '9'
    )

    # Reciver ILN
    body.segment Eancom::Edifact::NAD.new(
      party_function_code_qualifier: 'BY',
      party_identifier: config.header.interchange_recipient_identification,
      code_list_responsible_agancy_code_1: '9'
    )

    # Destination ILN
    body.segment Eancom::Edifact::NAD.new(
      party_function_code_qualifier: 'DP',
      party_identifier: config.header.interchange_recipient_identification,
      code_list_responsible_agancy_code_1: '9'
    )

    # Final Recipient ILN
    body.segment Eancom::Edifact::NAD.new(
      party_function_code_qualifier: 'UC',
      party_identifier: config.header.interchange_recipient_identification,
      code_list_responsible_agancy_code_1: '9'
    )

    # Delivery Note Mode
    body.segment Eancom::Edifact::CPS.new(
      hierarchical_structure_level_identifier: '1'
    )

    # Items
    total_quantity = 0

    items = config.body.items

    items.each_with_index do |item, index|
      total_quantity += item.quantity.to_i

      body.segment Eancom::Edifact::LIN.new(
        line_item_identifier_1: "#{index + 1}",
        item_identifier: item.ean,
        item_type_identification_code: 'SRV'
      )

      body.segment Eancom::Edifact::QTY.new(
        quantity_type_code_qualifier: '12',
        quantity: "#{item.quantity}"
      )
    end

    # Total Quantity
    body.segment Eancom::Edifact::CNT.new(
      control_total_type_code_quantifier: '1',
      control_total_value: "#{total_quantity}"
    )

    # Position Count
    body.segment Eancom::Edifact::CNT.new(
      control_total_type_code_quantifier: '2',
      control_total_value: "#{items.count}"
    )
  end

  document.footer do |footer|
    footer.segment Eancom::Edifact::UNT.new(
      number_of_segments_in_message: "#{document.total_segments}",
      message_reference_number: '1'
    )

    footer.segment Eancom::Edifact::UNZ.new(
      interchange_control_count: '1',
      interchange_control_reference: "#{config.body.document_identifier}"
    )
  end

end