#coding=utf-8

namespace :exercise_publish do
  desc "publish exercise and end exercise"
  def get_mulscore(question, user)
    ecs = ExerciseAnswer.where("user_id =? and exercise_question_id =?", user.id, question.id)
    arr = []
    ecs.each do |ec|
      arr << ec.exercise_choice.choice_position
    end
    #arr = arr.sort
    str = arr.sort.join("")
    return str
  end

  def tran_base64_decode64 str
    if str.blank?
      str
    else
      s_size = str.size % 4
      if s_size != 0
        str += "=" * (4 - s_size)
      end
      Base64.decode64(str.tr("-_", "+/")).force_encoding("utf-8")
    end
  end

  def calculate_student_score(exercise, user)
    score = 0
    score1 = 0
    score2 = 0
    score3 = 0
    score4 = 0
    exercise_qustions = exercise.exercise_questions
    exercise_qustions.each do |question|
      if question.question_type != 5
        answer = question.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{user.id}")
        if question.question_type == 3
          standard_answer =[]
          question.exercise_standard_answers.each do |answer|
            standard_answer << answer.answer_text.strip.downcase
          end
        else
          standard_answer = question.exercise_standard_answers.first
        end

        unless answer.empty?
          # 问答题有多个答案
          if question.question_type == 3 && !standard_answer.empty?
            if standard_answer.include?(answer.first.answer_text.strip.downcase)
              score1 = score1+ question.question_score unless question.question_score.nil?
            end
          elsif question.question_type == 1 && !standard_answer.nil?
            if answer.first.exercise_choice.choice_position == standard_answer.exercise_choice_id
              score2 = score2 + question.question_score unless question.question_score.nil?
            end
          elsif question.question_type == 2 && !standard_answer.nil?
            arr = get_mulscore(question, user)
            if arr.to_i == standard_answer.exercise_choice_id
              score3 = score3 + question.question_score unless question.question_score.nil?
            end
          end
        end
      else
        question.exercise_shixun_challenges.each do |exercise_cha|
          game = Game.where(:user_id => user.id, :challenge_id => exercise_cha.challenge_id).first
          if game.present?
            exercise_cha_score = 0
            answer_status = 0
            cha_path = exercise_cha.challenge.path.present? ? exercise_cha.challenge.path.split("；") : []
            challeng_path = cha_path.reject(&:blank?)[0].try(:strip)
            if game.status == 2 && game.final_score >= 0
              exercise_cha_score = exercise_cha.question_score
              answer_status = 1
            end
            if exercise_cha.exercise_shixun_answers.where(:user_id => user.id).empty?
              if GameCode.where(:game_id => game.try(:id), :path => challeng_path).first.present?
                game_code = GameCode.where(:game_id => game.try(:id), :path => challeng_path).first
                code = game_code.try(:new_code)
              else
                begin
                  g = Gitlab.client
                  Rails.logger.info "commit_exercise_path---- #{challeng_path}"
                  if game.present?
                    code = g.files(game.myshixun.gpid, challeng_path, "master").try(:content)
                  else
                    code = g.files(question.shixun.gpid, challeng_path, "master").try(:content)
                  end
                  code = tran_base64_decode64(code)
                rescue Exception => e
                  @error_messages = e.message
                  Rails.logger.info "commit_exercise---- #{@error_messages}"
                end
              end
              ExerciseShixunAnswer.create(:exercise_question_id => question.id, :exercise_shixun_challenge_id => exercise_cha.id, :user_id => user.id,
                                          :score => exercise_cha_score, :answer_text => code, :status => answer_status)

            end
            score4 += exercise_cha_score
          end
        end
      end
    end
    score = score1 + score2 + score3 + score4
  end

  task :publish => :environment do
    Rails.logger.info("log--------------------------------exercise_publish start")
    puts "--------------------------------exercise_publish start"
    exercises = Exercise.where("publish_time is not null and exercise_status = 1 and publish_time <=?",Time.now)
    exercises.each do |exercise|
      exercise.update_column('exercise_status', 2)
      course = exercise.course
      tid_str = ""
      course.teachers.find_each do |member|
        tid_str += "," if tid_str != ""
        tid_str += "(#{member.user_id}, #{exercise.user_id}, #{exercise.id}, 'Exercise', #{exercise.id}, 'ExercisePublish', #{course.id}, 'Course', 0, 'Exercise', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
      end
      if exercise.unified_setting
        course.student.find_each do |student|
          tid_str += "," if tid_str != ""
          tid_str += "(#{student.student_id}, #{exercise.user_id}, #{exercise.id}, 'Exercise', #{exercise.id}, 'ExercisePublish', #{course.id}, 'Course', 0, 'Exercise', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
        end
      end
      if tid_str != ""
        tid_sql = "insert into tidings (user_id, trigger_user_id, container_id, container_type, parent_container_id, parent_container_type, belong_container_id, belong_container_type, viewed, tiding_type, created_at, updated_at) values" + tid_str
        ActiveRecord::Base.connection.execute tid_sql
      end

      if exercise.exercise_users.count == 0
        str = ""
        course.student.find_each do |student|
          str += "," if str != ""
          str += "(#{student.user_id}, #{exercise.id}, 0, '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
        end

        if str != ""
          sql = "insert into exercise_users (user_id, exercise_id, commit_status, created_at, updated_at) values" + str
          ActiveRecord::Base.connection.execute sql
        end
      end

      if exercise.course_acts.size == 0
        exercise.course_acts << CourseActivity.new(:user_id => exercise.user_id,:course_id => exercise.course_id)
      end
    end

    # 分组设置发布时间的测验
    exercise_group_settings = ExerciseGroupSetting.where("publish_time < ? and publish_time > ?", Time.now + 3600, Time.now - 3600)
    exercise_group_settings.each do |exercise_group|
      exercise = exercise_group.exercise
      if exercise.present?
        course = exercise.course
        exercise.update_attributes(:exercise_status => 2) if exercise.exercise_status == 1
        tid_str = ""
        members = course.members.where(:course_group_id => exercise_group.course_group_id)
        members.find_each do |member|
          tid_str += "," if tid_str != ""
          tid_str += "(#{member.user_id},#{exercise.user_id}, #{exercise.id}, 'Exercise', #{exercise.id}, 'ExercisePublish', #{course.id}, 'Course', 0, 'Exercise', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
        end
        if tid_str != ""
          tid_sql = "insert into tidings (user_id, trigger_user_id, container_id, container_type, parent_container_id, parent_container_type, belong_container_id, belong_container_type, viewed, tiding_type, created_at, updated_at) values" + tid_str
          ActiveRecord::Base.connection.execute tid_sql
        end
      end
    end
    Rails.logger.info("log--------------------------------exercise_publish end")
    puts "--------------------------------exercise_publish end"
  end

  task :end => :environment do
    exercises = Exercise.where("end_time <=? and exercise_status = 2",Time.now)
    exercises.each do |exercise|
      course = exercise.course
      exercise.update_column('exercise_status', 3)

      exercise.exercise_users.each do |exercise_user|
        if exercise_user.commit_status == 0 && !exercise_user.start_at.nil?
          exercise_user.update_attributes(:commit_status => 1, :end_at => Time.now, :status => true)

          s_score = calculate_student_score(exercise, exercise_user.user)
          exercise_user.update_attributes(:objective_score => s_score, :score => (s_score + (exercise_user.subjective_score && exercise_user.subjective_score > 0 ? exercise_user.subjective_score : 0)))
          if exercise_user.user.exercise_answer.where(:exercise_question_id => exercise.exercise_questions.where(:question_type => 4).map(&:id)).empty?
            exercise_user.update_attributes(:subjective_score => 0)
          end
        end
      end
    end

    all_exercises = Exercise.where("end_time > ? and exercise_status = 2",Time.now)
    exercise_ids = all_exercises.blank? ? "(-1)" : "(" + all_exercises.map(&:id).join(",") + ")"
    ExerciseGroupSetting.where("end_time <= '#{Time.now}' and exercise_id in #{exercise_ids}").each do |exercise_setting|
      exercise = exercise_setting.exercise

      users = exercise.course.members.where(:course_group_id => exercise_setting.course_group_id)
      exercise_users = exercise.exercise_users.where(:user_id => users.map(&:user_id))

      exercise_users.each do |exercise_user|
        if exercise_user.commit_status == 0 && !exercise_user.start_at.nil?
          exercise_user.update_attributes(:commit_status => 1, :end_at => Time.now, :status => true)

          s_score = calculate_student_score(exercise, exercise_user.user)
          exercise_user.update_attributes(:objective_score => s_score, :score => (s_score + (exercise_user.subjective_score && exercise_user.subjective_score > 0 ? exercise_user.subjective_score : 0)))
          if exercise_user.user.exercise_answer.where(:exercise_question_id => exercise.exercise_questions.where(:question_type => 4).map(&:id)).empty?
            exercise_user.update_attributes(:subjective_score => 0)
          end
        end
      end
    end
  end
end