# frozen_string_literal: true

module Hyrax
  module Indexers
    ##
    # Indexes Hyrax::FileSet objects
    class FileSetIndexer < Hyrax::Indexers::ResourceIndexer # rubocop:disable Metrics/ClassLength
      include Hyrax::PermissionIndexer
      include Hyrax::VisibilityIndexer
      include Hyrax::ThumbnailIndexer
      include Hyrax::Indexer(:core_metadata)
      include Hyrax::Indexer(:file_set_metadata)

      def to_solr # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity
        super.tap do |solr_doc| # rubocop:disable Metrics/BlockLength
          solr_doc['generic_type_si'] = 'FileSet'

          # Metadata from the FileSet
          solr_doc['file_ids_ssim']                = resource.file_ids&.map(&:to_s)
          solr_doc['original_file_id_ssi']         = resource.iiif_id
          solr_doc['extracted_text_id_ssi']        = resource.extracted_text_id.to_s
          solr_doc['hasRelatedMediaFragment_ssim'] = resource.representative_id.to_s
          solr_doc['hasRelatedImage_ssim']         = resource.thumbnail_id.to_s

          index_lease(solr_doc)
          index_embargo(solr_doc)

          # Add in metadata from the primary file.
          file_metadata = Hyrax.config.file_set_file_service.new(file_set: resource).primary_file
          return solr_doc unless file_metadata

          # Label is the actual file name. It's not editable by the user.
          solr_doc['original_file_alternate_ids_tesim'] = file_metadata.alternate_ids&.map(&:to_s) if file_metadata.alternate_ids.present?

          solr_doc['original_filename_tesi']  = file_metadata.original_filename if file_metadata.original_filename.present?
          solr_doc['original_filename_ssi']   = file_metadata.original_filename if file_metadata.original_filename.present?
          solr_doc['mime_type_tesi']          = file_metadata.mime_type if file_metadata.mime_type.present?
          solr_doc['mime_type_ssi']           = file_metadata.mime_type if file_metadata.mime_type.present?

          solr_doc['file_format_tesim']       = file_format(file_metadata)
          solr_doc['file_format_sim']         = file_format(file_metadata)
          solr_doc['file_size_lts']           = file_metadata.recorded_size[0]
          solr_doc['type_tesim']              = file_metadata.pcdm_use.map(&:to_s) if file_metadata.pcdm_use.present?
          solr_doc['pcdm_use_tesim'] = file_metadata.pcdm_use.map(&:to_s) if file_metadata.pcdm_use.present?

          # attributes set by fits
          solr_doc['format_label_tesim']      = file_metadata.format_label if file_metadata.format_label.present?
          solr_doc['size_tesim']              = file_metadata.recorded_size if file_metadata.recorded_size.present?
          solr_doc['well_formed_tesim']       = file_metadata.well_formed if file_metadata.well_formed.present?
          solr_doc['valid_tesim']             = file_metadata.valid if file_metadata.valid.present?
          solr_doc['fits_version_tesim']      = file_metadata.fits_version if file_metadata.fits_version.present?
          solr_doc['exif_version_tesim']      = file_metadata.exif_version if file_metadata.exif_version.present?
          solr_doc['checksum_tesim']          = file_metadata.checksum if file_metadata.checksum.present?

          # shared attributes across multiple file types
          solr_doc['frame_rate_tesim']        = file_metadata.frame_rate if file_metadata.frame_rate.present? # audio, video
          solr_doc['bit_rate_tesim']          = file_metadata.bit_rate if file_metadata.bit_rate.present? # audio, video
          solr_doc['duration_tesim']          = file_metadata.duration if file_metadata.duration.present? # audio, video
          solr_doc['sample_rate_tesim']       = file_metadata.sample_rate if file_metadata.sample_rate.present? # audio, video

          solr_doc['height_tesim']            = file_metadata.height if file_metadata.height.present? # image, video
          solr_doc['width_tesim']             = file_metadata.width if file_metadata.width.present? # image, video
          solr_doc['height_is']               = Integer(file_metadata.height.first) if file_metadata.height.present?
          solr_doc['width_is']                = Integer(file_metadata.width.first) if file_metadata.width.present?

          # attributes set by fits for audio files
          solr_doc['bit_depth_tesim']         = file_metadata.bit_depth if file_metadata.bit_depth.present?
          solr_doc['channels_tesim']          = file_metadata.channels if file_metadata.channels.present?
          solr_doc['alpha_channels_ssi']      = file_metadata.channels.first if file_metadata.channels.present?
          solr_doc['data_format_tesim']       = file_metadata.data_format if file_metadata.data_format.present?
          solr_doc['offset_tesim']            = file_metadata.offset if file_metadata.offset.present?

          # attributes set by fits for documents
          solr_doc['file_title_tesim']        = file_metadata.file_title if file_metadata.file_title.present?
          solr_doc['page_count_tesim']        = file_metadata.page_count if file_metadata.page_count.present?
          solr_doc['language_tesim']          = file_metadata.language if file_metadata.language.present?
          solr_doc['word_count_tesim']        = file_metadata.word_count if file_metadata.word_count.present?
          solr_doc['character_count_tesim']   = file_metadata.character_count if file_metadata.character_count.present?
          solr_doc['line_count_tesim']        = file_metadata.line_count if file_metadata.line_count.present?
          solr_doc['character_set_tesim']     = file_metadata.character_set if file_metadata.character_set.present?
          solr_doc['markup_basis_tesim']      = file_metadata.markup_basis if file_metadata.markup_basis.present?
          solr_doc['paragraph_count_tesim']   = file_metadata.paragraph_count if file_metadata.paragraph_count.present?
          solr_doc['markup_language_tesim']   = file_metadata.markup_language if file_metadata.markup_language.present?
          solr_doc['table_count_tesim']       = file_metadata.table_count if file_metadata.table_count.present?
          solr_doc['graphics_count_tesim']    = file_metadata.graphics_count if file_metadata.graphics_count.present?

          # attributes set by fits for images
          solr_doc['byte_order_tesim']        = file_metadata.byte_order if file_metadata.byte_order.present?
          solr_doc['compression_tesim']       = file_metadata.compression if file_metadata.compression.present?
          solr_doc['color_space_tesim']       = file_metadata.color_space if file_metadata.color_space.present?
          solr_doc['profile_name_tesim']      = file_metadata.profile_name if file_metadata.profile_name.present?
          solr_doc['profile_version_tesim']   = file_metadata.profile_version if file_metadata.profile_version.present?
          solr_doc['orientation_tesim']       = file_metadata.orientation if file_metadata.orientation.present?
          solr_doc['color_map_tesim']         = file_metadata.color_map if file_metadata.color_map.present?
          solr_doc['image_producer_tesim']    = file_metadata.image_producer if file_metadata.image_producer.present?
          solr_doc['capture_device_tesim']    = file_metadata.capture_device if file_metadata.capture_device.present?
          solr_doc['scanning_software_tesim'] = file_metadata.scanning_software if file_metadata.scanning_software.present?
          solr_doc['gps_timestamp_tesim']     = file_metadata.gps_timestamp if file_metadata.gps_timestamp.present?
          solr_doc['latitude_tesim']          = file_metadata.latitude if file_metadata.latitude.present?
          solr_doc['longitude_tesim']         = file_metadata.longitude if file_metadata.longitude.present?

          # attributes set by fits for video
          solr_doc['aspect_ratio_tesim']      = file_metadata.aspect_ratio if file_metadata.aspect_ratio.present?
        end
      end

      private

      def file_format(file)
        if file.mime_type.present? && file.format_label.present?
          "#{file.mime_type.split('/').last} (#{file.format_label.join(', ')})"
        elsif file.mime_type.present?
          file.mime_type.split('/').last
        elsif file.format_label.present?
          file.format_label
        end
      end

      def index_lease(doc)
        if resource.lease&.active?
          doc['lease_expiration_date_dtsi'] = resource.lease.lease_expiration_date&.to_datetime
          doc['visibility_after_lease_ssim'] = resource.lease.visibility_after_lease
          doc['visibility_during_lease_ssim'] = resource.lease.visibility_during_lease
        else
          doc['lease_history_ssim'] = resource&.lease&.lease_history
        end

        doc
      end

      def index_embargo(doc)
        if resource.embargo&.active?
          doc['embargo_release_date_dtsi'] = resource.embargo.embargo_release_date&.to_datetime
          doc['visibility_after_embargo_ssim'] = resource.embargo.visibility_after_embargo
          doc['visibility_during_embargo_ssim'] = resource.embargo.visibility_during_embargo
        else
          doc['embargo_history_ssim'] = resource&.embargo&.embargo_history
        end

        doc
      end
    end
  end
end