class StudentWorkController < ApplicationController
  layout "base_courses"
  include StudentWorkHelper
  before_filter :find_homework, :only => [:new, :index, :create]
  before_filter :find_work, :only => [:edit, :update, :show, :destroy, :add_score]
  before_filter :member_of_course, :only => [:index, :new, :create, :show, :add_score]
  before_filter :author_of_work, :only => [:edit, :update, :destroy]

  def index
    @stundet_works = @homework.student_works.order("final_score desc")
    respond_to do |format|
      format.html
    end
  end

  def new
    student_work = @homework.student_works.where("user_id = ?",User.current.id).first
    if student_work.nil?
      @stundet_work = StudentWork.new
      respond_to do |format|
        format.html
      end
    else
      render_403
    end
  end

  def create
    if params[:student_work]
      stundet_work = StudentWork.new
      stundet_work.name = params[:student_work][:name]
      stundet_work.description = params[:student_work][:description]
      stundet_work.project_id = params[:student_work][:project_id]
      stundet_work.homework_common_id = @homework.id
      stundet_work.user_id = User.current.id
      stundet_work.save_attachments(params[:attachments])
      render_attachment_warning_if_needed(stundet_work)
      if stundet_work.save
        respond_to do |format|
          format.html {
            flash[:notice] = l(:notice_successful_create)
            redirect_to student_work_index_url(:homework => @homework.id)
          }
        end
        return
      end
    end
    respond_to do |format|
      format.html {
        flash[:notice] = l(:notice_failed_create)
        redirect_to new_student_work_url(:homework => @homework.id)
      }
    end
  end

  def edit

  end

  def update

  end

  def show
    @score = student_work_score @work,User.current
    respond_to do |format|
      format.js
    end
  end

  def destroy

  end

  #添加评分，已评分则为修改评分
  def add_score
    @score = student_work_score @work,User.current
    if @score
      @score.comment = params[:new_form][:user_message] if params[:new_form] && params[:new_form][:user_message] && params[:new_form][:user_message] != ""
      @score.score = params[:score] if params[:score]
      @is_new = false
    else
      @score = StudentWorksScore.new
      @score.score = params[:score] if params[:score]
      @score.comment = params[:new_form][:user_message] if params[:new_form] && params[:new_form][:user_message] && params[:new_form][:user_message] != ""
      @score.user_id = User.current.id
      @score.student_work_id = @work.id
      role = User.current.members.where("course_id = ?",@course.id).first.roles.first.name
      @score.reviewer_role = get_role_by_name(role)
      @is_new = true
    end

    @score.save_attachments(params[:attachments])
    render_attachment_warning_if_needed(@score)

    if @score.save
      case @score.reviewer_role
        when 1 #教师评分：最后一个教师评分为最终评分
          @work.teacher_score = @score.score
          @work.final_score = @score.score
        when 2 #教辅评分 教辅评分显示平均分
          @work.teaching_asistant_score = @work.student_works_scores.where(:reviewer_role => 2).average(:score).try(:round, 2).to_f
          if @work.teacher_score.nil?
            if @work.student_score.nil?
              @work.final_score = @work.teaching_asistant_score
            else
              @work.final_score = format("%.2f",@work.teaching_asistant_score * @homework.homework_detail_manual.ta_proportion + @work.student_score * (1 - @homework.homework_detail_manual.ta_proportion))
            end
          end
        when 3 #学生评分 学生评分显示平均分
          @work.student_score = @work.student_works_scores.where(:reviewer_role => 3).average(:score).try(:round, 2).to_f
          if @work.teacher_score.nil?
            if @work.teaching_asistant_score.nil?
              @work.final_score = @work.student_score
            else
              @work.final_score = format("%.2f",@work.teaching_asistant_score * @homework.homework_detail_manual.ta_proportion + @work.student_score * (1 - @homework.homework_detail_manual.ta_proportion))
            end
          end
      end

      if @work.save
        respond_to do |format|
          format.js
        end
      end
    end
  end

  #添加评分的回复
  def add_score_reply
    @score = StudentWorksScore.find params[:score_id]
    @jour = @score.journals_for_messages.new(:user_id => User.current.id,:notes =>params[:message], :reply_id => 0)
    if @jour.save
      respond_to do |format|
        format.js
      end
    end
  end

  #删除评分的回复
  def destroy_score_reply
    @jour = JournalsForMessage.find params[:jour_id]
    if @jour.destroy
      respond_to do |format|
        format.js
      end
    end
  end

  private
  #获取作业
  def find_homework
    @homework = HomeworkCommon.find params[:homework]
    @course = @homework.course
  rescue
    render_404
  end
  #获取作品
  def find_work
    @work = StudentWork.find params[:id]
    @homework = @work.homework_common
    @course = @homework.course
  rescue
    render_404
  end

  #是不是当前课程的成员
  #当前课程成员才可以看到作品列表
  def member_of_course
    render_403 unless User.current.member_of_course? @course
  end

  #判断是不是当前作品的提交者
  #提交者可以编辑作品
  def author_of_work
    render_403 unless User.current.id == @work.user_id && (@homework.homework_type != 1 || @homework.homework_detail_manual.comment_status == 1 )
  end
end