tag = 'DTM'
Eancom.register_segment(tag: tag, klass: Eancom::Edifact::DTM)

structure = Eancom::Edifact::Structure.new(tag: tag)

composite = Eancom::Edifact::Composite.new()
data = Eancom::Edifact::Data.new(
  type: String,
  length: 3,
  description: "DATE/TIME/PERIOD",
  required: true
)
composite.add(:tag, data)
structure << composite

composite = Eancom::Edifact::Composite.new()

type_dictionary = {
  '1' => {
    description: 'Service completion date/time, actual',
    identifier: 'service_completion_date_time_actual'
  },
  '2' => {
    description: 'Delivery date/time, reqested',
    identifier: 'delivery_date_time'
  },
  '7' => {
    description: 'Effectiv date/time',
    identifier: 'effectiv_date_time'
  },
  '11' => {
    description: 'Despatch date and/or time',
    identifier: 'despatch_date_and_or_time'
  },
  '17' => {
    description: 'Delivery date/time, estimated',
    identifier: 'delivery_date_time_estimated'
  },
  '35' => {
    description: 'Delivery date and/or time',
    identifier: 'delivery_date_and_or_time'
  },
  '36' => {
    description: 'Expiry Date',
    identifier: 'expiry_date'
  },
  '44' => {
    description: 'Availability',
    identifier: 'availability'
  },
  '50' => {
    description: 'Goods receipt date/time',
    identifier: 'goods_receipt_date_time'
  },
  '63' => {
    description: 'Delivery date/time, latest',
    identifier: 'delivery_date_time_latest'
  },
  '90' => {
    description: 'Report start date',
    identifier: 'report_start_date'
  },
  '91' => {
    description: 'Report end date',
    identifier: 'report_end_date'
  },
  '64' => {
    description: 'Delivery date/time, earliest',
    identifier: 'delivery_date_time_earliest'
  },
  '137' => {
    description: 'Document/message date/time',
    identifier: 'document_message_date_time'
  },
  '157' => {
    description: 'Validity start date',
    identifier: 'valitity_start_date'
  },
  '171' => {
    description: 'Reference date/time',
    identifier: 'reference_date_time'
  },
  '194' => {
    description: 'Start date/time',
    identifier: 'start_date_time'
  },
  '200' => {
    description: 'Pick-up/collection date/time of cargo',
    identifier: 'pick_up_collection_date_time_of_cargo'
  },
  '206' => {
    description: 'End date/time',
    identifier: 'end_date_time'
  },
  '263' => {
    description: 'Invoicing period',
    identifier: 'invoicing_period'
  },
  '325' => {
    description: 'Tax period',
    identifier: 'tax_period'
  },
  '356' => {
    description: 'Sales date, and or time, and or period',
    identifier: 'sales_date_and_or_time_and_or_period'
  },
  '418' => {
    description: 'Minimum shelf life remaining at time of receipt',
    identifier: 'minimum_shelf_life_remaining_at_time_of_receipt'
  },
  '423' => {
    description: 'First date of ordering',
    identifier: 'first_date_of_ordering'
  },
  '454' => {
    description: 'Accounting value date',
    identifier: 'accounting_value_date'
  },
  '44E' => {
    description: 'Connection date/time',
    identifier: 'connection_date_time'
  },
  '765' => {
    description: 'Seasonal availabilty calendar year',
    identifier: 'seasonal_availabilty_calendar_year'
  }
}

data = Eancom::Edifact::Data.new(
  type: String,
  length: 1..3,
  dictionary: type_dictionary,
  description: 'Date or time or period function code qualifier',
  required: true
)
composite.add(:type, data)

data = Eancom::Edifact::Data.new(
  type: String,
  length: 1..35,
  description: 'Date or time or period value',
  required: true
)
composite.add(:date_time, data)

format_dictionary = {
  '102' => {
    description: 'Date',
    value: 'CCYYMMDD',
    identifier: 'date'
  },
  '203' => {
    description: 'Date and Time',
    value: 'CCYYMMDDHHMM',
    identifier: 'date_time'
  },
  '204' => {
    description: 'Date and Time',
    value: 'CCYYMMDDHHMMSS',
    identifier: 'date_time_second'
  },
  '602' => {
    description: 'Calendar year including century: C = Century; Y = Year',
    value: 'CCYY',
    identifier: 'century_year'
  },
  '718' => {
    description: 'Period',
    value: 'CCYYMMDD-CCZZMMDD',
    identifier: 'period'
  },
  '801' => {
    description: 'Year',
    identifier: 'year'
  }
}

data = Eancom::Edifact::Data.new(
  type: String,
  length: 1..35,
  dictionary: format_dictionary,
  description: 'Date or time or period value',
  required: true
)
composite.add(:format, data)
structure << composite

Eancom.register_structure(tag: 'DTM', structure: structure)