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participants_service.rb « projects « services « app - gitlab.com/gitlab-org/gitlab-foss.git - Unnamed repository; edit this file 'description' to name the repository.
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module Projects
  class ParticipantsService < BaseService
    attr_reader :noteable_type, :noteable_id

    def execute
      @noteable_type = params[:type]
      @noteable_id = params[:type_id]

      project_members = sorted(project.team.members)
      participants = target_owner + participants_in_target + all_members + groups + project_members
      participants.uniq
    end

    def target
      @target ||=
        case noteable_type
        when 'Issue'
          IssuesFinder.new(current_user, project_id: project.id, state: 'all').
            execute.find_by(iid: noteable_id)
        when 'MergeRequest'
          MergeRequestsFinder.new(current_user, project_id: project.id, state: 'all').
            execute.find_by(iid: noteable_id)
        when 'Commit'
          project.commit(noteable_id)
        else
          nil
        end
    end

    def target_owner
      return [] unless target && target.author.present?

      [{
        name: target.author.name,
        username: target.author.username
      }]
    end

    def participants_in_target
      return [] unless target

      users = target.participants(current_user)
      sorted(users)
    end

    def sorted(users)
      users.uniq.to_a.compact.sort_by(&:username).map do |user|
        { username: user.username, name: user.name }
      end
    end

    def groups
      current_user.authorized_groups.sort_by(&:path).map do |group|
        count = group.users.count
        { username: group.path, name: group.name, count: count }
      end
    end

    def all_members
      count = project.team.members.flatten.count
      [{ username: "all", name: "All Project and Group Members", count: count }]
    end
  end
end