class Subject::UserUsedInfoService < ApplicationService
  attr_reader :subject, :shixun_ids

  def initialize(subject)
    @subject = subject
    @shixun_ids = subject.shixuns.pluck(:id)

  end

  def call
    users = User.joins(:myshixuns).where(myshixuns: {shixun_id: shixun_ids}).group(:user_id)

    users_info = []
    users.includes(:myshixuns, :games).each do |user|
      games = user.games
      name = "#{user.lastname}#{user.firstname}"
      passed_myshixun_count = user.myshixuns.select{|m| m.status == 1}.size
      passed_games_count = games.select{|g| g.status == 2}.size
      code_line_count = "未完成"
      evaluate_count =  games.sum(evaluate_count)
      cost_time = games.sum(:cost_time)
      user_login = user.login
      users_info << {login: user_login, name: name, passed_myshixun_count: passed_myshixun_count,
                     passed_games_count: passed_games_count, code_line_count: code_line_count,
                     evaluate_count: evaluate_count, cost_time: cost_time}
    end
    users_info
  end

end