education/classroom

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app/controllers/concerns/starter_code.rb

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# frozen_string_literal: true

module StarterCode
  extend ActiveSupport::Concern

  INVALID_SELECTION = "Invalid repository selection, please check it again."
  WRONG_FORMAT      = "Invalid repository name, use the format owner/name."

  def starter_code_repository_id(repo_name)
    return if repo_name.blank?

    raise GitHub::Error, WRONG_FORMAT unless repo_name.match?(%r{^#{GitHub::USERNAME_REGEX}\/#{GitHub::REPOSITORY_REGEX}$})

    begin
      # rubocop:disable Rails/DynamicFindBy
      GitHubRepository.find_by_name_with_owner!(current_user.github_client, repo_name).id
      # rubocop:enable Rails/DynamicFindBy
    rescue GitHub::Error
      raise GitHub::Error, INVALID_SELECTION
    end
  end

  def validate_starter_code_repository_id(repo_id)
    valid_integer_or_number_string = repo_id.is_a?(Integer) || (repo_id.is_a?(String) && repo_id.to_s =~ /^[0-9]+$/)
    raise GitHub::Error, INVALID_SELECTION unless valid_integer_or_number_string

    possible_github_repository = GitHubRepository.new(current_user.github_client, repo_id.to_i)
    raise GitHub::Error, INVALID_SELECTION unless possible_github_repository.on_github?

    possible_github_repository.id
  end
end