pulibrary / orangelight / 0e37073d-109c-440c-949f-49d2aa86311b

module Requests

  class SelectedItemsValidator < ActiveModel::Validator

    def mail_services

      ["paging", "pres", "annex", "on_order", "in_process", "ppl", "lewis", "on_shelf", "annex_in_library"]

    end

    def validate(record)

      record.errors.add(:items, { "empty_set" => { 'text' => 'Please Select an Item to Request!', 'type' => 'options' } }) unless record.items.size >= 1 && !record.items.any? { |item| defined? item.selected }

      record.items.each do |selected|

        validate_selected(record, selected)

      end

    end

    private

      def validate_selected(record, selected)

        return unless selected['selected'] == 'true'

        case selected["type"]

        when 'digitize', 'digitize_fill_in', 'annex_edd', 'marquand_edd', 'clancy_edd', "clancy_unavailable_edd"

          validate_delivery_mode(record:, selected:)

        when 'ill'

          validate_ill_on_shelf(record, selected, pick_up_phrase: 'delivery of your borrow direct item', action_phrase: 'requested via Borrow Direct')

        when 'recap_no_items'

          validate_recap_no_items(record, selected)

        when 'recap', 'recap_edd', 'recap_in_library', 'clancy_in_library', 'marquand_in_library', 'recap_marquand_edd', 'recap_marquand_in_library'

          validate_offsite(record, selected)

        when 'on_shelf'

          validate_ill_on_shelf(record, selected)

        when *mail_services

          validate_pick_up_location(record, selected, selected["type"])

        else

          record.errors.add(:items, { selected['mfhd'] => { 'text' => 'Please choose a Request Method for your selected item.', 'type' => 'pick_up' } })

        end

      end

      def validate_ill_on_shelf(record, selected, pick_up_phrase: 'your selected item', action_phrase: 'Requested')

        return unless validate_item_id?(record:, selected:, action_phrase:)

        item_id = selected['item_id']

        return if selected['pick_up'].present?

        record.errors.add(:items, { item_id => { 'text' => "Please select a pick-up location for #{pick_up_phrase}", 'type' => 'pick_up' } })

      end

      def validate_pick_up_location(record, selected, type)

        return if selected['pick_up'].present?

        id = selected['item_id']

        id = selected['mfhd'] if id.blank?

        record.errors.add(:items, { id => { 'text' => "Please select a pick-up location for your selected #{type} item", 'type' => 'pick_up' } })

      end

      def validate_recap_no_items(record, selected)

        return if selected['pick_up'].present? || selected['edd_art_title'].present?

        record.errors.add(:items, { selected['mfhd'] => { 'text' => 'Please select a pick-up location for your selected ReCAP item', 'type' => 'pick_up' } })

      end

      def validate_offsite(record, selected)

        return unless validate_item_id?(record:, selected:, action_phrase: 'Requested from Off-site Facility')

        validate_delivery_mode(record:, selected:)

      end

      def validate_delivery_mode(record:, selected:)

        item_id = selected['item_id']

        if selected["delivery_mode_#{item_id}"].nil?

          record.errors.add(:items, { item_id => { 'text' => 'Please select a delivery type for your selected recap item', 'type' => 'options' } })

        else

          delivery_type = selected["delivery_mode_#{item_id}"]

          record.errors.add(:items, { item_id => { 'text' => 'Please select a pick-up location for your selected recap item', 'type' => 'pick_up' } }) if delivery_type == 'print' && selected['pick_up'].blank?

          if delivery_type == 'edd'

            record.errors.add(:items, { item_id => { 'text' => 'Please specify title for the selection you want digitized.', 'type' => 'options' } }) if selected['edd_art_title'].empty?

          end

        end

      end

      def validate_item_id?(record:, selected:, action_phrase:)

        return true if selected['item_id'].present?

        record.errors.add(:items, { selected['mfhd'] => { 'text' => "Item Cannot be #{action_phrase}, see circulation desk.", 'type' => 'options' } })

        false

      end

  end

end