class HomeworkService

  #作业详情（老师才显示启动匿评，学生不显示 ）
  #bid.comment_status=0 启动匿评
  #bid.comment_status=1 关闭匿评
  #many_times 第几次（作业）
  #is_teacher 判断是否为该课程老师
  def show_homework params
    @bid = Bid.find(params[:id])
    course  = @bid.courses.first
    is_teacher = is_course_teacher(User.current,course)
    author = @bid.author.firstname + @bid.author.lastname
    many_times = course.homeworks.index(@bid) + 1
    name = @bid.name
    homework_count = @bid.homeworks.count
    description = @bid.description
    if is_teacher && bid.open_anonymous_evaluation == 1 && bid.homeworks.count >= 2
      case bid.comment_status
        when 0
          alert_anonymous_comment_bid_path(bid) 
        when 1
          alert_anonymous_comment_bid_path(bid) 
        when 2
          raise '匿评结束'
      end
    end      
  end
  
  #启动作业匿评
  def alert_homework_anonymous_comment params
    @bid = Bid.find params[:id]
    @course = @bid.courses.first
    if @bid.comment_status == 0
      @totle_size = searchStudent(@course).size
      @cur_size = @bid.homeworks.size
    elsif @bid.comment_status == 1
      @totle_size = 0
      @bid.homeworks.map { |homework| @totle_size += homework.homework_evaluations.count}
      teachers = "("
      teacher_members = searchTeacherAndAssistant(@course)
      teacher_members.each do |member|
        if member == teacher_members.last
          teachers += member.user_id.to_s + ")"
        else
          teachers += member.user_id.to_s + ","
        end
      end
      @cur_size = 0
      @bid.homeworks.map { |homework| @cur_size += homework.rates(:quality).where("seems_rateable_rates.rater_id not in #{teachers}").count}
    end
    @percent = format("%.2f",(@cur_size.to_f / ( @totle_size == 0 ? 1 : @totle_size)) * 100)
  end
   
  #匿评作品详情
  def anonymous_works_show params
    @homework = HomeworkAttach.find(params[:id])
    if User.current.admin? || User.current.member_of_course?(@homework.bid.courses.first)
      
    end
  end
  
  #
end