educoder/app/controllers/challenges_controller.rb

# encoding: utf-8
class ChallengesController < ApplicationController
  layout "base_shixun"
  before_filter :check_authentication
  before_filter :find_shixun, :only => [:index, :new, :create, :destroy, :challenge_build, :update_evaluation]
  before_filter :find_challenge, :only => [:show, :edit, :update, :challenge_build, :index_up, :index_down, :destroy, :update_evaluation]
  before_filter :build_challege_from_params, :only => [:new, :create]
  before_filter :tpi_manager_allowed, :only => [:challenge_build, :destroy, :edit, :new, :create]
  before_filter :allowed_view, :only => [:show]
  before_filter :query_challeges, :only => [:show, :edit, :update, :update_evaluation]
  before_filter :find_shixun_language, :only => [:show, :new, :edit]

  include ApplicationHelper

  def new
    # 顶部导航
    @st = params[:st].to_i
    @project_menu_type = 11
    respond_to do |format|
      format.html { render :action => 'new', :layout => 'base_shixun' }
    end
  end

  def create
    ActiveRecord::Base.transaction do
      begin
        challenge_count = @shixun.challenges.count
        @challenge = Challenge.new(params[:challenge])
        @challenge.position = challenge_count + 1
        @challenge.shixun = @shixun
        @challenge.user = User.current
        @challenge.st = params[:st].to_i
        if @challenge.save!
          if params[:st].to_i != 0
            #创建选项
            params[:question][:cnt].each_with_index do |test, index|
              answer = params[:choice][:answer][index] == "0" ? false : true
              ChallengeQuestion.create(:option_name => test, :challenge_id => @challenge.id, :position => index, :right_key => answer)
            end
          end
        end
        # 实训是否需要重启
        # 非实践任务创建第一个阶段时调用 publishGame, 避免不包含实践任务的实训进行模拟实战时报错
        if @challenge.position == 1 && params[:st].to_i != 0
          add_shixun_modify_status @shixun, 1
        else
          shixun_modify_status_without_publish(@shixun, 1)
        end
        redirect_to edit_shixun_challenge_path(@challenge, :shixun_id => @shixun)
      rescue Exception => e
        flash[:error] = "#{e.message}"
        redirect_to new_shixun_challenge_path(:shixun_id => @shixun, :st => params[:st].to_i)
        raise ActiveRecord::Rollback
      end
    end
  end

  # 处理新建challenge返回的pipeline片段
  def fragment_from_jenkins

  end

  def index
    # 顶部导航
    @challenges = @shixun.challenges.order("position asc")
    respond_to do |format|
      format.js
      format.html
    end
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  def show
    challenge_num = Challenge.where(:shixun_id => @shixun).count
    challenge_pos = @challenge.position
    if challenge_pos < challenge_num
      @next_challenge = Challenge.where(:shixun_id => @shixun, :position => challenge_pos + 1).first
    end
    @prev_challenge = Challenge.where(:shixun_id => @shixun, :position => challenge_pos - 1).first if challenge_pos - 1 > 0
    respond_to do |format|
      format.html
      format.js
    end
  end

  def edit
    @st = @challenge.st
    challenge_num = Challenge.where(:shixun_id => @shixun).count
    challenge_pos = @challenge.position
    if challenge_pos < challenge_num
      @next_challenge = Challenge.where(:shixun_id => @shixun, :position => challenge_pos+1).first
    end
    @prev_challenge = Challenge.where(:shixun_id => @shixun, :position => challenge_pos - 1).first if challenge_pos - 1 > 0
    @tab = params[:tab].blank? ? 1 : params[:tab].to_i
    @editor = params[:editor]         # 编辑模式
  end

  def destroy
    next_challenges = @shixun.challenges.where("position > #{@challenge.position}")
    next_challenges.update_all("position = position - 1")
    @challenge.destroy
    @challenges = @shixun.challenges

    add_shixun_modify_status(@shixun, 1)
  end

  def update
      ActiveRecord::Base.transaction do
        @challenge.update_attributes(params[:challenge])
        if (params[:tab] == "1" || params[:tab].nil?) && @challenge.st != 0
          begin
            @challenge.challenge_questions.delete_all
            params[:question][:cnt].each_with_index do |test, index|
              answer = params[:choice][:answer][index] == "0" ? false : true
              ChallengeQuestion.create(:option_name => test, :challenge_id => @challenge.id, :position => index, :right_key => answer)
            end
            redirect_to edit_shixun_challenge_path(@challenge, :shixun_id => @shixun, :tab => params[:tab])
          rescue Exception => e
            flash[:error] = "#{e.message}"
            format.html{redirect_to edit_shixun_challenge_path(@challenge, :shixun_id => @shixun)}
            raise ActiveRecord::Rollback
          end
        else
          redirect_to edit_shixun_challenge_path(@challenge, :shixun_id => @shixun, :tab => params[:tab])
        end
      end
  end

  def update_evaluation
    ActiveRecord::Base.transaction do
      @challenge.update_attributes(params[:challenge])
      begin
        if params[:tab].to_i == 2
          @test_sets.delete_all unless @test_sets.blank?
          if params[:test_set][:hidden].length > 0
            params[:test_set][:input].each_with_index do |input, index|
              unless (input[index] == params[:test_set][:output][index] && input[index].nil?)
                params[:test_set][:hidden][index].to_i == 0 ?  open = 1 :  open = 0
                TestSet.create(:challenge_id => @challenge.id, :input => input, :output => params[:test_set][:output][index], :is_public => open, :position => (index + 1))
              end
            end
          end
          # 向jenkins端发送请求，构建公共测试用例
          add_shixun_modify_status(@shixun, 1)
        elsif params[:tab].to_i == 5
          @challenge_tags.delete_all unless @challenge_tags.blank?
          unless params[:knowledge].blank?
            params[:knowledge][:input].each do |input|
              ChallengeTag.create(:name => input, :challenge_id => @challenge.id)
            end
          end
        end

        redirect_to edit_shixun_challenge_path(@challenge, :shixun_id => @shixun, :tab => params[:tab])
      rescue Exception => e
        flash[:error] = "#{e.message}"
        redirect_to edit_shixun_challenge_path(@challenge, :shixun_id => @shixun, :tab => params[:tab])
        raise ActiveRecord::Rollback
      end
    end
  end

  def index_down
    next_challenge = @challenge.next_challenge
    position = @challenge.position
    @challenge.update_attribute(:position, (position + 1))
    next_challenge.update_attribute(:position, next_challenge.position - 1)
    @challenges = @shixun.challenges
    # 向jenkins端发送请求，构建公共测试用例
    add_shixun_modify_status(@shixun, 1)
  end

  def index_up
    position = @challenge.position
    last_challenge = @challenge.last_challenge
    @challenge.update_attribute(:position, (position - 1))
    last_challenge.update_attribute(:position, last_challenge.position + 1)
    @challenges = @shixun.challenges
    # 向jenkins端发送请求，构建公共测试用例
    add_shixun_modify_status(@shixun, 1)
  end

  # build job 只负责发送请求
  def challenge_build
    gitUrl = git_repository_url(@shixun, "Shixun")
    gitUrl = Base64.urlsafe_encode64(gitUrl)
    taskId = params[:id]
    jobName = @shixun.forked_form
    step = @challenge.position
    jenkins_shixuns = Redmine::Configuration['jenkins_shixuns']
    if @challenge.status == 0
      params = {:jobName => "#{jobName}", :taskId => "#{taskId}", :step => "#{step}",  :gitUrl => "#{gitUrl}"}
      uri = URI("#{jenkins_shixuns}/jenkins-exec/api/buildJob")
      res = uri_exec uri, params
      # @challenge.update_attribute(:status, 1)
    end
    respond_to do |format|
      format.js
    end
  end

  private
  def count_input input, output
    if input.length == 0 && output.length == 0
      result = 0
    else
      if input.length > output.length

      end
    end
  end

  def tpi_manager_allowed
     unless (User.current.manager_of_shixun?(@shixun) || User.current.admin?)
       render_403
     end
  end

  def allowed_view
    unless (allow_to_view_challenge(@challenge, @shixun) || User.current.manager_of_shixun?(@shixun))
      render_403
    end
  end

  def build_challege_from_params
    if params[:id].blank?
      @challenge = Challenge.new
      @challenge.shixun = @shixun
    else
      @challenge = @shixun.challenges.find(params[:id])
    end

    @challenge.shixun = @shixun
    @challenge.user ||= User.current
  end

  def query_challeges
    @test_sets = @challenge.test_sets
    @challenge_tags = @challenge.challenge_tags
  end

  def find_challenge
    @challenge = Challenge.find(params[:id])
    @shixun = @challenge.shixun
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  # Find project of id params[:id]
  def find_shixun
    shixun_id = params[:shixun_id] || (params[:challenge] && params[:challenge][:shixun_id])
    @shixun = Shixun.find_by_identifier(shixun_id)
    if @shixun.nil?
      render_404
      return
    else
      if (@shixun.status == 0 && !(User.current.manager_of_shixun?(@shixun) || User.current.admin?))
        render_403
        return
      end
    end
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  def find_shixun_language
    language = @shixun.language
    @language = language_switch language
  end

end