# frozen_string_literal: true


module MaterialRepr
  BASE = { only: [:id, :url, :version_no, :file_suppressed_at,
                  :file_suppression_reason, :created_at, :updated_at],
           methods: [:content_type],
           include: { tag: TagRepr::BASE,
                      created_by_user: UserRepr::BASE,
                      updated_by_user: UserRepr::BASE } }.freeze

  module_function

  def base material, host:
    material.as_json(BASE).merge(
        file: if material.file.attached? && !material.file_suppressed?
                Rails.application.routes.url_helpers.rails_storage_proxy_url(
                    material.file, host:)
              end,
        export_paths: export_paths(material),
        export_items: export_items(material))
  end

  def many materials, host:
    materials.map { |m| base(m, host:) }
  end

  def export_paths material
    material.material_export_items.each_with_object({ }) do |item, hash|
      hash[item.profile] = item.enabled ? item.export_path : ''
    end
  end

  def export_items material
    material.material_export_items.map do |item|
      { id: item.id,
        profile: item.profile,
        export_path: item.export_path,
        enabled: item.enabled }
    end
  end
end