pulibrary / pdc_describe / 4e4e59fc-9df4-4838-9fd4-6c7ea33cdb7c

class S3File

  include Rails.application.routes.url_helpers

  include ActionView::Helpers::NumberHelper

  attr_accessor :safe_id, :filename, :last_modified, :size, :checksum, :url, :filename_display, :last_modified_display, :display_size, :is_folder

  alias key filename

  alias id filename

  def self.from_json(json_string)

    json = if json_string.is_a? String

             JSON.parse(json_string)

           else

             json_string

           end

    new(filename: json["filename"], last_modified: DateTime.parse(json["last_modified"]), size: json["size"],

        checksum: json["checksum"], work: Work.find(json["work_id"]), filename_display: json["filename_display"], url: json["url"])

  end

  def initialize(filename:, last_modified:, size:, checksum:, work:, filename_display: nil, url: nil)

    @safe_id = filename_as_id(filename)

    @filename = filename

    @filename_display = filename_display || filename_short(work, filename)

    @last_modified = last_modified

    @last_modified_display = last_modified.in_time_zone.strftime("%m/%d/%Y %I:%M %p") # mm/dd/YYYY HH:MM AM

    @size = size

    @display_size = number_to_human_size(size)

    @checksum = checksum.delete('"')

    @url = url || work_download_path(work, filename:)

    @work = work

    @is_folder = filename.ends_with?("/")

  end

  def created_at

    last_modified

  end

  def byte_size

    size

  end

  def directory?

    size == 0

  end

  def empty?

    size == 0

  end

  def globus_url

    encoded_filename = filename.split("/").map { |name| ERB::Util.url_encode(name) }.join("/")

    File.join(Rails.configuration.globus["post_curation_base_url"], encoded_filename)

  end

  delegate :s3_query_service, to: :@work

  delegate :bucket_name, to: :s3_query_service

  def s3_client

    s3_query_service.client

  end

  def create_snapshot

    created = UploadSnapshot.create(url:, work: @work, files: [{ filename:, checksum: }])

    created.upload = self

    created.save

    created.reload

  end

  def snapshots

    persisted = UploadSnapshot.where(key:, url:, work: @work)

    return [] if persisted.blank?

    persisted

  end

  def to_json

    {

      filename:, last_modified:, size:,

      checksum:, work_id: @work.id, filename_display:, url:

    }.to_json

  end

  private

    def filename_short(work, filename)

      prefix = "#{work.doi}/#{work.id}/"

      if filename.start_with?(prefix)

        filename[prefix.length..]

      else

        filename

      end

    end

    def filename_as_id(filename)

      filename.gsub(/[^A-Za-z\d]/, "-")

    end

end