<?php
namespace admin\factory;

class Users 
{
  public static function user_delete( $user_id )
  {
    global $mdb;

      return $mdb -> delete( 'pp_users', [ 'id' => (int)$user_id ] );
    
  }
  
  public static function user_details( $user_id )
  {
    global $mdb;
    return $mdb -> get( 'pp_users', '*', [ 'id' => (int)$user_id ] );
  }
  
  public static function user_privileges( $user_id )
  {
    global $mdb;
    return $mdb -> select( 'pp_users_privileges', '*', ['id_user' => (int)$user_id]);
  }
  
  public static function user_save( $user_id, $login, $status, $active_to, $password, $password_re, $admin, $privileges )
  {
    global $mdb, $lang;

    $mdb -> delete( 'pp_users_privileges', [ 'id_user' => (int) $user_id ] );

    if ( !$user_id )
    {
      if ( strlen( $password ) < 5 )
        return $response = [ 'status' => 'error', 'msg' => 'Podane hasło jest zbyt krótkie.' ];

      if ( $password != $password_re )
        return $response = [ 'status' => 'error', 'msg' => 'Podane hasła są różne' ];

      if ( $mdb -> insert( 'pp_users',
                      [
                      'login'     => $login,
                      'status'    => $status == 'on' ? 1 : 0,
                      'active_to' => $active_to == '' ? NULL : $active_to,
                      'admin'     => $admin,
                      'password'  => md5( $password ),
              ] ) )
        $id_user = $mdb -> get( 'pp_users', 'id', [ 'ORDER' => [ 'id' => 'DESC' ] ] );

      if ( is_array( $privileges ) )
      {
        foreach ( $privileges as $pri )
        {
          $mdb -> insert( 'pp_users_privileges',
                  [
                  'name'    => $pri,
                  'id_user' => $id_user
          ] );
        }
      }
      else
      {
        $mdb -> insert( 'pp_users_privileges',
                [
                'name'    => $privileges,
                'id_user' => $id_user
        ] );
      }

      return $response = [ 'status' => 'ok', 'msg' => 'Użytkownik został zapisany.' ];
    }
    else
    {

      if ( $password and strlen( $password ) < 5 )
        return $response = [ 'status' => 'error', 'msg' => 'Podane hasło jest zbyt krótkie.' ];

      if ( $password and $password != $password_re )
        return $response = [ 'status' => 'error', 'msg' => 'Podane hasła są różne' ];

      if ( $password )
        $mdb -> update( 'pp_users', [
                  'password' => md5( $password )
                ], [
                  'id' => (int) $user_id
                ] );

      $mdb -> update( 'pp_users', [
                'login'              => $login,
                'admin'              => $admin,
                'status'             => $status == 'on' ? 1 : 0,
                'active_to'          => $active_to == '' ? NULL : $active_to,
                'error_logged_count' => 0
              ], [
                'id' => (int) $user_id
              ] );

      if ( is_array( $privileges ) )
      {
        foreach ( $privileges as $pri )
        {
          $mdb -> insert( 'pp_users_privileges', [
                  'name'    => $pri,
                  'id_user' => $user_id
                ] );
        }
      }
      else
      {
        $mdb -> insert( 'pp_users_privileges', [
                'name'    => $privileges,
                'id_user' => $user_id
              ] );
      }
      return $response = [ 'status' => 'ok', 'msg' => 'Uzytkownik został zapisany.' ];
    }
    \S::delete_cache();
  }

  public static function check_login( $login, $user_id )
  {
    global $mdb;
    
    if ( $mdb -> get( 'pp_users', 'login', [ 'AND' => [ 'login' => $login, 'id[!]' => (int)$user_id ] ] ) )
      return $response = [ 'status' => 'error', 'msg' => 'Podany login jest już zajęty.' ];
    
    return $response = [ 'status' => 'ok' ];
  }
  
  public static function logon( $login, $password )
  {
    global $mdb;
    
    if ( !$mdb -> get( 'pp_users', '*', [ 'login' => $login ] ) )
      return 0;
    
    if ( !$mdb -> get( 'pp_users', '*', [ 'AND' => [ 'login' => $login, 'status' => 1, 'error_logged_count[<]' => 5 ] ] ) )
        return -1;
    
    if ( $mdb -> get( 'pp_users', '*', [ 
          'AND' => [ 
              'login' => $login, 'status' => 1, 'password' => md5( $password ), 
              'OR' => [ 'active_to[>=]' => date('Y-m-d'), 'active_to' => null ]
            ] 
          ] ) )
    {
      $mdb -> update( 'pp_users', [ 'last_logged' => date( 'Y-m-d H:i:s' ), 'error_logged_count' => 0 ], [ 'login' => $login ] );
      return 1;
    }
    else
    {
      $mdb -> update( 'pp_users', [ 'last_error_logged' => date( 'Y-m-d H:i:s' ), 'error_logged_count[+]' => 1 ], [ 'login' => $login ] );
      if ( $mdb -> get( 'pp_users', 'error_logged_count', [ 'login' => $login ] ) >= 5 )
      {
        $mdb -> update( 'pp_users', [ 'status' => 0 ], [ 'login' => $login ] );
        return -1;
      }
    }
    return 0;
  }
  
  public static function details( $login )
  {
    global $mdb;
    return $mdb -> get( 'pp_users', '*', [ 'login' => $login ] );
  }
  
  public static function check_privileges( $name, $user_id )
  {
    global $mdb;
    
    if ( $user_id == 1 )
      return true;
    else
    {
       if ( !$privilages = \Cache::fetch( "check_privileges:$user_id:$name-tmp" ) )
       {
         $privilages = $mdb -> count( 'pp_users_privileges', [ 'AND' => ['name' => $name, 'id_user' => (int)$user_id ]]);
         \Cache::store( "check_privileges:$user_id:$name", $privilages );
       }
       return $privilages;        
    }    
  }
}
?>