# encoding: utf-8
# status 1:完成实训
# modified_time：为实训TPM有改动（非版本库）；reset_time：为版本库修改时间
class Myshixun < ActiveRecord::Base
  attr_accessible :description, :name, :parent_id, :user_id, :gpid, :forked_from, :visits, :is_public, :identifier, :shixun_id,
                  :modify_time, :reset_time, :updated_at, :created_at, :status, :git_url, :onclick_time, :commit_id
  # has_many :users, :through => :myshixun_members
  has_many :myshixun_members, :dependent => :destroy
  has_one :repository, :dependent => :destroy
  has_many :games, :dependent => :destroy, :order => "games.id ASC"
  belongs_to :shixun, counter_cache: true
  has_one :shixun_modify, :dependent => :destroy
  has_one :webssh, :dependent => :destroy
  has_many :student_works
  belongs_to :user
  validates_uniqueness_of :shixun_id, :scope => :user_id, :message => "error"
  # validates :shixun_id, :uniqueness => {:scope => :user_id, :message => "不能被重复开启"}
  scope :min, lambda { select([:id, :shixun_id, :identifier, :gpid, :status, :user_id, :commit_id, :modify_time, :reset_time,
                               :system_tip, :gpid]) }
  scope :finished, lambda{where(status: 1)}

  def output_times
    times = Output.where(:game_id => self.games.map(&:id), :test_set_position => 1).count
    times
  end

  def mirror_name
    self.shixun.mirror_repositories.map(&:type_name).blank? ? "" : self.shixun.mirror_repositories.map(&:type_name)
  end

  def main_mirror
    self.shixun.mirror_repositories.published_main_mirror.try(:first)
  end

  def total_stage
    self.games.count
  end

  def current_stage
    game = self.games.where(:status => 0).first
    position = game.blank? ? games.count : game.challenge.try(:position)
    return position
  end

  def current_stages
    game = self.games.where(:status => 1).first
    position = game.blank? ? 1 : game.challenge.try(:position)
    return position
  end

  # 通关时间
  def done_time
    time = ""
    if self.status == 1 || self.games.where(:status => 2).count == self.shixun.challenges.count
      time = self.games.map(&:end_time).max
    end
    time
  end

  def is_complete?
    self.status == 1 || self.games.where(:status => 2).count == self.games.count
  end

  def total_spend_time
    time = 0
    self.games.each do |game|
      if game.status == 2
        time += game.cost_time.to_i
      end
    end
    time
  end

  # 准确率
  def total_accuracy
    accuracy = 0
    count = 0
    self.games.where(:status => 2).each do |game|
      count += 1
      accuracy += game.accuracy ? game.accuracy : 0
    end
    accuracy.to_f / count
  end

  # 通过的关卡理应得到的总经验值（看与不看参考答案无影响）
  def sum_score
    score = 0
    self.games.each do |game|
      if game.status == 2
        total_exp = game.challenge.score.to_i
        score += total_exp
      end
    end
    score
  end

  # 获得的经验值
  def total_score
    score = 0
    self.games.where(:status => 2).each do |game|
      score += game.final_score.to_i < 0 ? 0 : game.challenge.score.to_i
    end
    score
  end

  def total_gold
    score = 0
    self.games.each do |game|
      if game.status == 2
        total_gold =game.answer_open? ? -game.challenge.score.to_i : game.final_score.to_i
        score += total_gold
      end
    end
    score
  end


  # id 转换成 identifier
  def to_param
    identifier
  end

  # 当前任务：一个实训中只可能一个未完成任务(status 0或1只会存在一条记录)
  # status:0 可以测评的，正在测评的
  # 如果都完成，则当前任务为最后一个任务
  def current_task
    games = self.games
    current_game = games.select{|game| game.status == 1 || game.status == 0}.first
    if current_game.blank?
      current_game = Game.find_by_sql("SELECT g.* FROM games g, challenges c where g.myshixun_id=#{self.id} and g.challenge_id = c.id and g.status = 2 order by c.position desc").first
    end

    return current_game.blank? ? games.first : current_game
    #
    # if self.status == 1
    #   current_game = Game.find_by_sql("SELECT g.* FROM games g, challenges c where g.myshixun_id=#{self.id} and g.challenge_id = c.id and g.status = 2 order by c.position desc").first
    # else
    #   current_game = self.games.select{|game| game.status == 1 || game.status == 0}.first
    # end
    # return current_game
  end

  def owner
    self.user
  rescue ActiveRecord::RecordNotFound
  end

  def score
    game = self.games.where(:status => [0, 1]).first
    unless game.blank?
    score =  game.challenge.try(:score)
    end
    return score
  end

end