# frozen_string_literal: true

module Projects
  module HashedStorage
    class RollbackRepositoryService < BaseRepositoryService
      def execute
        try_to_set_repository_read_only!

        @old_storage_version = project.storage_version
        project.storage_version = nil

        @new_disk_path = project.disk_path

        result = move_repositories

        if result
          project.set_full_path
          project.track_project_repository
        else
          rollback_folder_move
          project.storage_version = ::Project::HASHED_STORAGE_FEATURES[:repository]
        end

        project.transaction do
          project.save!(validate: false)
          project.set_repository_writable!
        end

        result
      rescue Gitlab::Git::CommandError => e
        logger.error("Repository #{project.full_path} failed to rollback (PROJECT_ID=#{project.id}). Git operation failed: #{e.inspect}")

        rollback_migration!

        false
      rescue OpenSSL::Cipher::CipherError => e
        logger.error("Repository #{project.full_path} failed to rollback (PROJECT_ID=#{project.id}). There is a problem with encrypted attributes: #{e.inspect}")

        rollback_migration!

        false
      end

      private

      def rollback_migration!
        rollback_folder_move
        project.storage_version = ::Project::HASHED_STORAGE_FEATURES[:repository]
        project.set_repository_writable!
      end
    end
  end
end