class HomeworkCommonController < ApplicationController
  layout "base_courses"
  before_filter :find_course, :only => [:index,:new,:create]
  before_filter :find_homework, :only => [:edit,:update]
  before_filter :teacher_of_course, :only => [:new, :create, :edit, :update, :destroy, :start_anonymous_comment, :stop_anonymous_comment, :alert_anonymous_comment]

  def index
    homeworks = @course.homework_commons
    @is_teacher = User.current.logged? && (User.current.admin? || User.current.allowed_to?(:as_teacher,@course))
    @is_student = User.current.logged? && (User.current.admin? || (User.current.member_of_course?(@course) && !@is_teacher))
    @homeworks = paginateHelper homeworks,20
    respond_to do |format|
      format.html
    end
  end

  def new
    @homework = HomeworkCommon.new
    @homework.safe_attributes = params[:homework_common]
    @homework.late_penalty = 2
    @homework.end_time = (Time.now  + 3600 * 24).strftime('%Y-%m-%d')
    @homework.publish_time = Time.now.strftime('%Y-%m-%d')

    #匿评作业相关属性
    @homework_detail_manual = HomeworkDetailManual.new
    @homework_detail_manual.ta_proportion = 0.6
    @homework_detail_manual.absence_penalty = 2
    @homework_detail_manual.evaluation_num = 3
    @homework_detail_manual.evaluation_start = Time.now.strftime('%Y-%m-%d')
    @homework_detail_manual.evaluation_end = (Time.now  + 3600 * 24).strftime('%Y-%m-%d')
    @homework.homework_detail_manual = @homework_detail_manual
    respond_to do |format|
      format.html
    end
  end

  def create
    if params[:homework_common]
      homework = HomeworkCommon.new
      homework.name = params[:homework_common][:name]
      homework.description = params[:homework_common][:description]
      homework.end_time = params[:homework_common][:end_time]
      homework.publish_time = params[:homework_common][:publish_time]
      homework.homework_type = params[:homework_common][:homework_type]
      homework.late_penalty = params[:late_penalty]
      homework.user_id = User.current.id
      homework.course_id = @course.id

      homework.save_attachments(params[:attachments])
      render_attachment_warning_if_needed(homework)

      #匿评作业相关属性
      homework_detail_manual = HomeworkDetailManual.new
      homework_detail_manual.ta_proportion = params[:ta_proportion] || 0.6
      homework_detail_manual.comment_status = 1
      homework_detail_manual.evaluation_start = params[:evaluation_start]
      homework_detail_manual.evaluation_end = params[:evaluation_end]
      homework_detail_manual.evaluation_num = params[:evaluation_num]
      homework_detail_manual.absence_penalty = params[:absence_penalty]
      homework.homework_detail_manual = homework_detail_manual

      if homework.save
        respond_to do |format|
          format.html {
            flash[:notice] = l(:notice_successful_create)
            redirect_to homework_common_index_path(:course => @course.id)
          }
        end
        return
      end
    end

    respond_to do |format|
      format.html {
        flash[:notice] = l(:notice_failed_create)
        redirect_to new_homework_common_path(:course => @course.id)
      }
    end
  end

  def edit
    respond_to do |format|
      format.html
    end
  end

  def update
    @homework.name = params[:homework_common][:name]
    @homework.description = params[:homework_common][:description]
    @homework.end_time = params[:homework_common][:end_time]
    @homework.publish_time = params[:homework_common][:publish_time]
    @homework.homework_type = params[:homework_common][:homework_type]
    @homework.late_penalty = params[:late_penalty]
    @homework.user_id = User.current.id
    @homework.course_id = @course.id

    #匿评作业相关属性
    @homework_detail_manual.ta_proportion = params[:ta_proportion] || 0.6
    @homework_detail_manual.evaluation_start = params[:evaluation_start]
    @homework_detail_manual.evaluation_end = params[:evaluation_end]
    @homework_detail_manual.evaluation_num = params[:evaluation_num]
    @homework_detail_manual.absence_penalty = params[:absence_penalty]

    if @homework.save && @homework_detail_manual.save
      respond_to do |format|
        format.html {
          flash[:notice] = l(:notice_successful_edit)
          redirect_to homework_common_index_path(:course => @course.id)
        }
      end
      return
    else
      respond_to do |format|
        format.html {
          flash[:notice] = l(:notice_failed_edit)
          redirect_to edit_homework_common_path(@homework)
        }
      end
    end
  end

  def destroy

  end

  #开启匿评
  def start_anonymous_comment

  end

  #关闭匿评
  def stop_anonymous_comment

  end

  #提示
  def alert_anonymous_comment
    respond_to do |format|
      format.js
    end
  end

  private
  #获取课程
  def find_course
    @course = Course.find params[:course]
  rescue
    render_404
  end
  #获取作业
  def find_homework
    @homework = HomeworkCommon.find params[:id]
    @homework_detail_manual = @homework.homework_detail_manual
    @course = @homework.course
  rescue
    render_404
  end
  #是不是课程的老师
  def teacher_of_course
    render_403 unless User.current.allowed_to?(:as_teacher,@course)
  end
end