<?php
//
// 2017-10-24 stvo
//

namespace bk {
   class VSMClient {
      var $apikey;
      var $apipassword;
      var $apiserver;
      function __construct ($apikey, $apipassword, $apiserver)
      {
         if (func_num_args () != 3)
            throw new \Exception (
               "VSMClient must be constructed with three arguments");
         $this->apikey = $apikey;
         $this->apipassword = $apipassword;
         $this->apiserver = $apiserver;
      }
      function request ($action, $data = null)
      {
         if (func_num_args () != 1 and func_num_args() != 2)
            throw new \Exception (
               "VSMClient:request needs two or three arguments");
         $method = 'POST';
         $hdr = null;

         $bdy = new \http\Message\Body();
         $bdy->addForm([
            'username' => $this->apikey,
            'password' => $this->apipassword,
            'action' => $action,
            'data' => yaml_emit ($data)
         ]);

         $req = new \http\Client\Request (
            $method, $this->apiserver, $hdr, $bdy);
         $client = new \http\Client();
         $client->enqueue ($req);
         $client->send ();
         $resp = $client->getResponse();
         $yaml = $resp->getBody();
         $rdata = yaml_parse ($yaml);
         if (! array_key_exists('status', $rdata))
            throw new \Exception ('response does not have status');
         if ($rdata["status"] == "failed")
            throw new \Exception ("server reported: " . $rdata['error']);
//         if (array_key_exists('list', $rdata))
//            return $rdata["list"];
         return $rdata;
      }
   }
}