<?php

if(!defined('ONYX')) exit;

function cmp_team_pts($i1, $i2)
{
  if ($i1->get_pts() == $i2->get_pts()){
    return 0;
  }
  else{
    return ($i1->get_pts() < $i2->get_pts()) ? 1 : -1;
  }
}

class Team
{
  var $id = null;
  var $key_hash;
  var $auth_level;
  var $company;
  var $members = null;
  var $points = null;

  // Constructor
  function Team ($id=null)
  {
    if (!empty($id))
    {
      $db = new BDD();
      $res = $db->unique_query("SELECT id, key_hash, company, auth_level
        			FROM teams WHERE id=" . intval($id)) or die($db->erreur());

      if (!empty($res))
      {
	$this->id = $res['id'];
	$this->key_hash = $res['key_hash'];
	$this->company = $res['company'];
	$this->auth_level = $res['auth_level'];
      }
      $db->deconnexion();
    }
  }

  // Class methods
  function update()
  {
    $key_hash = $this->key_hash;
    $auth_level = intval($this->auth_level);
    $company = $this->company;

    $db = new BDD();
    $db->escape($key_hash);
    $db->escape($company);

    if (empty($this->id))
    {
      $db->query("INSERT INTO teams
       		  VALUES (NULL, '".$key_hash."', ".$auth_level.", '".$company."')");
      $this->id = $db->insert_id();
      $aff = ($this->id > 0);
    }
    else
    {
      $db->query("UPDATE users
     	  	  SET auth_level = ".$auth_level.", key_hash = '".$key_hash."', company = '".$company."'
     	  	  WHERE id = ".intval($this->id));
      $aff = $db->affected();
    }
    $db->deconnexion();

    return ($aff == 1);
  }

  function get_id() {
    return $this->id;
  }

  function get_company() {
    return $this->company;
  }

  function get_auth_level() {
    return $this->auth_level;
  }

  function get_members()
  {
    if(!isset($this->members))
    {
      $db = new BDD();

      $res = $db->query("SELECT id, firstname, lastname, nickname
			 FROM team_members
			 WHERE id_team = " . intval($this->id));

      $db->deconnexion();

      if (!empty($res))
	$this->members = $res;
    }

    return $this->members;
  }

  function get_pts()
  {
    if(!isset($this->points))
    {
      $db = new BDD();

      $res = $db->unique_query("SELECT e.id, s.id_user, SUM(e.points) as sum_points
			 FROM exercices e
			 LEFT OUTER JOIN solved s ON e.id = s.id_exercice
			 WHERE s.id_user = " . $this->id . "
			 GROUP BY s.id_user");

      $db->deconnexion();

      if (!empty($res))
      {
	$this->points = $res['sum_points'];
      }
    }

    return $this->points;
  }

  function get_groupIds()
  {
    $db = new BDD();

    $res = $db->query("SELECT `id` FROM `users`");
    $db->deconnexion();

    return $res['id'];
  }

  function authenticate($certificate)
  {
    //TODO
  }

  // Static methods
  public static function get_teams()
  {
    $db = new BDD();
    $ids = $db->query("SELECT `id` FROM `teams`");
    $db->deconnexion();

    $array = array();
    foreach ($ids as $id){
      $array[] = new Team($id['id']);
    }

    return $array;
  }

  // TODO: Not tested, need feeding BDD
  public static function get_top()
  {
    $teams = Team::get_teams();

    usort($teams, "cmp_team_pts");
    return $teams;
  }

}