<?php
header('Content-type: application/json');

use app\models\UserPublic;
use app\services\JWT;

$post = \Yii::$app->request->getRawBody();


$postDecode = json_decode($post);

if(!empty($postDecode->uid)) {

    function loop($postDecode)
    {

        if (!$postDecode->uid) return;
        $server_id = md5(time() . uniqid());
        $uid = $postDecode->uid;
        $token = JWT::encode(['server_id' => $server_id, 'uid' => $uid], JWT::SECRET_KEY);
        $user = UserPublic::find()->where(['device_id' => $token])->exists();
        if (!$user) {
            echo json_encode(['device_id' => $token]);
            exit;
        } else {
            loop($postDecode);
        }
    }

    loop($postDecode);
}
exit;