#encoding: utf-8
module ContestantWorksHelper

  def get_contest_new_status status
    str = ""
    case status
      when 0
        str = "未提交"
      when 1
        str = "已提交"
      when 2
        str = "迟交"
    end
    str
  end

  #成绩计算
  def set_final_score contestwork, contestant_work
    if contestwork.online_evaluation
      if contestwork.score_valid
        contestant_work.work_score = contestant_work.judge_score
      else
        if ContestantWorkScore.find_by_sql("SELECT * FROM (SELECT * FROM contestant_work_scores WHERE contestant_work_id = #{contestant_work.id} AND reviewer_role = 2 ORDER BY created_at DESC) AS t GROUP BY user_id").count <= 2
          contestant_work.work_score = contestant_work.judge_score
        else
          judge_score = ContestantWorkScore.find_by_sql("SELECT (SUM(score)-MIN(score)-MAX(score))/(COUNT(score)-2) AS score FROM (SELECT * FROM (SELECT * FROM contestant_work_scores WHERE contestant_work_id = #{contestant_work.id} AND reviewer_role = 2 ORDER BY created_at DESC) AS t GROUP BY user_id) AS a")
          contestant_work.work_score = judge_score.first.score.try(:round, 2).to_f
        end
      end
    else
      contestant_work.work_score = nil
    end
  end

  #获取学生作品的评分记录：同一个评委只显示最后一次评分
  def contestant_work_score_record work
    sql = "SELECT MAX(id) id FROM contestant_work_scores WHERE reviewer_role = 2 AND score IS NOT NULL AND contestant_work_id = #{work.id} GROUP BY user_id"
    tea_ts_ids = ContestantWorkScore.find_by_sql sql
    scores = work.contestant_work_scores.where(:id => tea_ts_ids.map{|tea| tea.id}).order("updated_at desc")
    return scores
  end

  #获取指定评分的角色
  def student_work_score_role score
    case score.reviewer_role
      when 1
        role = "管理员"
      when 2
        role = "评委"
      when 3
        role = "参赛者"
    end
  end
end