class ContestManagementController < ApplicationController

  before_filter :admin_authorization

  def index
    @num_contests = Contest.count()
  end

  def user_stat
    if not GraderConfiguration.indv_contest_mode?
      redirect_to :action => 'index' and return
    end

    @users = User.all
    @start_times = {}
    UserContestStat.all.each do |stat|
      @start_times[stat.user_id] = stat.started_at
    end
  end

  def clear_stat
    user = User.find(params[:id])
    if user.contest_stat!=nil
      user.contest_stat.destroy
    end
    redirect_to :action => 'user_stat'
  end

  def clear_all_stat
    if not GraderConfiguration.indv_contest_mode?
      redirect_to :action => 'index' and return
    end

    UserContestStat.delete_all()
    flash[:notice] = 'All start time statistic cleared.'
    redirect_to :action => 'index'
  end

  def change_contest_mode
    if ['standard', 'contest', 'indv-contest', 'analysis'].include? params[:id]
      config = GraderConfiguration.find_by_key('system.mode')
      config.value = params[:id]
      config.save
    else
      flash[:notice] = 'Wrong contest mode value'
    end
    redirect_to :action => 'index'
  end

end