ajax chat

$response = array(
                    'FIELDS' => array(
                        'NAME' => trim($request->get('NAME')),
                        'EMAIL' => trim($request->get('EMAIL')),
                        'PASSWORD' => trim($request->get('PASSWORD')),
                        'MESSAGE' => trim($request->get('MESSAGE')),
                    ),
                    'HIDDENS' => array(),
                    'ERRORS' => array(),
                    'WARNINGS' => array(),
                    'SUCCESS' => array()
                );

                // CHECK HIDDENS

                if(intval($request->get('EDIT_ID')))
                {
                    $response['HIDDENS']['EDIT_ID'] = $request->get('EDIT_ID');
                    $response['EDIT_ID'] = $request->get('EDIT_ID');
                }

                // CHECK FIELDS

                if(empty($response['FIELDS']['NAME']))
                {
                    $response['ERRORS']['NAME'] = 'Введите имя';
                }

                if(empty($response['FIELDS']['MESSAGE']))
                {
                    $response['ERRORS']['MESSAGE'] = 'Введите сообщение';
                }

                if(strlen($response['FIELDS']['MESSAGE']) > 1000)
                {
                    $response['ERRORS']['MESSAGE'] = 'Введите сообщение меньше 1000 символов';
                }

                if(!User::getInstance()->isAuthorized())
                {
                    if(!filter_var($response['FIELDS']['EMAIL'], FILTER_VALIDATE_EMAIL))
                    {
                        $response['ERRORS']['EMAIL'] = 'Введите корректный email';
                    }

                    if(empty($response['ERRORS']))
                    {
                        $user = new \CUser();
                        $arUser = UserTable::GetList(array(
                            'filter' => array('LOGIN' => $response['FIELDS']['EMAIL']),
                            'select' => array('ID', 'UF_IP')
                        ))->fetch();

                        if(intval($arUser['ID']))
                        {
                            if($arUser['UF_IP'] == User::getUserIP())
                            {
                                User::getInstance()->Authorize($arUser['ID'], true);
                                $response['SUCCESS'][] = 'Вы успешно авторизовались';
                            }
                            else
                            {
                                $response['DIFFERENCE_IP'] = true;

                                if(empty($response['FIELDS']['PASSWORD']))
                                {
                                    $response['WARNINGS']['EMAIL'] = 'Введите пароль из письма';
                                }
                                else
                                {
                                    $result = User::getInstance()->Login($response['FIELDS']['EMAIL'], $response['FIELDS']['PASSWORD'], true);

                                    if($result['TYPE'] !== 'ERROR')
                                    {
                                        $response['DIFFERENCE_IP'] = false;
                                        $response['SUCCESS'][] = 'Вы успешно авторизовались';
                                        $user->update($arUser['ID'], array('UF_IP' => User::getUserIP()));
                                    }
                                    else
                                    {
                                        $response['WARNINGS']['PASSWORD'] = 'Неверный пароль';
                                    }
                                }
                            }
                        }
                        else
                        {
                            $user = new \CUser;

                            $password = rand(100000, 999999);
                            $arFields = array(
                                'ACTIVE' => 'Y',
                                'NAME' => $response['FIELDS']['NAME'],
                                'EMAIL' => $response['FIELDS']['EMAIL'],
                                'LOGIN' => $response['FIELDS']['EMAIL'],
                                'PASSWORD' => $password,
                                'CONFIRM_PASSWORD' => $password,
                                'UF_PASSWORD' => $password,
                                'UF_IP' => User::getUserIP()
                            );

                            if($UID = $user->Add($arFields))
                            {
                                $response['SUCCESS'][] = 'Вы успешно зарегистрированы';
                                User::getInstance()->Authorize($UID, true);

                                Event::send(array(
                                    "EVENT_NAME" => 'FEEDBACK_FORM',
                                    "C_FIELDS" => array(
                                        'EMAIL_TO' => $response['FIELDS']['EMAIL'],
                                        'NAME' => $response['FIELDS']['NAME'],
                                        'PASSWORD' => $password
                                    ),
                                    "LID" => SITE_ID,
                                    "DUPLICATE" => 'N',
                                    "MESSAGE_ID" => 81
                                ));
                            }
                            else
                            {
                                Log::add2log(array(
                                    'Ошибка регистрации пользователя',
                                    $user->LAST_ERROR
                                ));
                            }
                        }
                    }
                }

                if(empty($response['ERRORS']) && User::getInstance()->isAuthorized())
                {
                    $ORMGChat = ORMFactory::compile('general_chat', 'communications');
                    $arFields = array(
                        'DATE' => new DateTime(),
                        'NAME' => $response['FIELDS']['NAME'],
                        'TEXT' => $response['FIELDS']['MESSAGE'],
                        'USER_ID' => User::getInstance()->getID()
                    );

                    if(intval($response['EDIT_ID']))
                    {
                        $arMessage = $ORMGChat::GetList(array(
                            'filter' => array('ID' => $response['EDIT_ID']),
                            'select' => array('ID', 'DATE')
                        ))->fetch();

                        if(intval($arMessage['ID']))
                        {
                            $arFields['DATE'] = $arMessage['DATE'];

                            $result = $ORMGChat::update($response['EDIT_ID'], $arFields);
                        }
                        else
                        {
                            $response['WARNINGS'][] = 'Сообщение не доступно';
                            $response['FIELDS']['MESSAGE'] = '';
                            $response['HIDDENS'] = array();
                            $response['EDIT_ID'] = false;
                        }
                    }
                    else
                    {
                        $result = $ORMGChat::add($arFields);
                    }

                    if($result->isSuccess())
                    {
                        if(intval($response['EDIT_ID']))
                        {
                            $response['SUCCESS'][] = 'Сообщение обновлено';

                            \CPullWatch::AddToStack('GENERAL_CHAT', Array(
                                'module_id' => 'general_chat',
                                'command' => 'update',
                                'params' => array(
                                    'EDIT_ID' => $response['EDIT_ID'],
                                    'MESSAGE' => self::getMesssage(
                                        $result->getId(),
                                        User::getInstance()->GetID(),
                                        $arFields['NAME'],
                                        $arFields['DATE']->format('G:i:s'),
                                        htmlspecialchars($arFields['TEXT'])
                                    )
                                )
                            ));
                        }
                        else
                        {
                            \CPullWatch::AddToStack('GENERAL_CHAT', Array(
                                'module_id' => 'general_chat',
                                'command' => 'add',
                                'params' => array(
                                    'MESSAGE' => self::getMesssage(
                                        $result->getId(),
                                        User::getInstance()->GetID(),
                                        $arFields['NAME'],
                                        $arFields['DATE']->format('G:i:s'),
                                        htmlspecialchars($arFields['TEXT'])
                                    )
                                )
                            ));
                        }

                        $response['FIELDS']['MESSAGE'] = '';
                        $response['HIDDENS'] = array();
                        $response['EDIT_ID'] = false;
                    }
                    else
                    {
                        $response['SUCCESS'] = false;
                        $response['WARNINGS'][] = 'Ошибка редактирования';

                        Log::add2log(array_merge(
                            array('Ошибка редактирования'),
                            $result->getErrorMessages()
                        ));
                    }

                    $response['USER_ID'] = $arFields['USER_ID'];
                }

                $GLOBALS['CHAT_USER_FORM'] = $response;

                ob_start();
                App::GetInstance()->IncludeComponent(
                    "bitrix:main.include",
                    "",
                    array(
                        "AREA_FILE_SHOW" => "file",
                        "PATH" => "/local/include/user_form.php"
                    ),
                    false,
                    array('HIDE_ICONS'=>'Y')
                );
                $response['FORM'] = ob_get_contents();
                ob_end_clean();

                echo json_encode($response);