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path: root/app/controllers/projects/merge_requests/application_controller.rb
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# frozen_string_literal: true

class Projects::MergeRequests::ApplicationController < Projects::ApplicationController
  before_action :check_merge_requests_available!
  before_action :merge_request
  before_action :authorize_read_merge_request!

  private

  def merge_request
    @issuable =
      @merge_request ||=
        merge_request_includes(@project.merge_requests).find_by_iid!(params[:id])
  end

  def merge_request_includes(association)
    association.includes(:metrics, :assignees, author: :status) # rubocop:disable CodeReuse/ActiveRecord
  end

  def merge_request_params
    params.require(:merge_request).permit(merge_request_params_attributes)
  end

  def merge_request_params_attributes
    [
      :allow_collaboration,
      :description,
      :force_remove_source_branch,
      :lock_version,
      :milestone_id,
      :source_branch,
      :source_project_id,
      :state_event,
      :squash,
      :target_branch,
      :target_project_id,
      :task_num,
      :title,
      :discussion_locked,
      label_ids: [],
      assignee_ids: [],
      update_task: [:index, :checked, :line_number, :line_source]
    ]
  end

  def set_pipeline_variables
    @pipelines =
      if can?(current_user, :read_pipeline, @merge_request.source_project)
        @merge_request.all_pipelines
      else
        Ci::Pipeline.none
      end
  end

  def close_merge_request_if_no_source_project
    return if @merge_request.source_project
    return unless @merge_request.open?

    @merge_request.close
  end
end