ManageIQ/miq_bot

module PullRequestMonitorHandlers
  class WipLabeler
    include Sidekiq::Worker
    sidekiq_options :queue => :miq_bot

    include BranchWorkerMixin

    LABEL = "wip".freeze

    def perform(branch_id)
      return unless find_branch(branch_id, :pr)

      process_branch
    end

    private

    def process_branch
      if wip_in_title?
        apply_label
      else
        remove_label
      end
    end

    def wip_in_title?
      pr_title_tags.map(&:downcase).include?(LABEL)
    end

    def apply_label
      logger.info("Updating PR #{pr_number} with label #{LABEL.inspect}.")
      GithubService.add_labels_to_an_issue(fq_repo_name, pr_number, [LABEL])
    end

    def remove_label
      logger.info("Updating PR #{pr_number} without label #{LABEL.inspect}.")
      GithubService.remove_label(fq_repo_name, pr_number, LABEL)
    end
  end
end