# frozen_string_literal: true

class Release < ActiveRecord::Base
  include CacheMarkdownField
  include Gitlab::Utils::StrongMemoize

  cache_markdown_field :description

  belongs_to :project
  # releases prior to 11.7 have no author
  belongs_to :author, class_name: 'User'

  validates :description, :project, :tag, presence: true

  scope :sorted, -> { order(created_at: :desc) }

  delegate :repository, to: :project

  def commit
    strong_memoize(:commit) do
      repository.commit(actual_sha)
    end
  end

  def tag_missing?
    actual_tag.nil?
  end

  private

  def actual_sha
    sha || actual_tag&.dereferenced_target
  end

  def actual_tag
    strong_memoize(:actual_tag) do
      repository.find_tag(tag)
    end
  end
end