<?php

require_once(__DIR__ . '/RpcCommon.php');

if (!isset($g_zmqcontext)) {
	$g_zmqcontext = new ZMQContext();
}

class ReplySocket extends RpcCommon {
	private $__socket;

	function __construct(&$test, $uri) {
		parent::__construct($test);
		global $g_zmqcontext;

		$this->__socket = $g_zmqcontext->getSocket(ZMQ::SOCKET_REP);
		$this->__socket->bind($uri);
	}

/**
 * Expect no received messages
 * 
 * @param  for how many millis no messages must be received
 */
	function recvNone($for) {
		$endTime = (microtime(true) * 1000) + $for;
		while (true) {
			$r = $this->__socket->recv(ZMQ::MODE_NOBLOCK);
			$this->_test->isFalse($r);
			if ($r) {
				$this->_test->failure("Got message while expecting none");
				break;
			}
			if ($endTime < (microtime(true) * 1000))
				break;
			usleep(1000);
		}
	}

	function recv($classMethod, $params = [], $autoReply = false) {
		while (true) {
			$r = $this->__socket->recv();
			if (!$this->__socket->getSockOpt(ZMQ::SOCKOPT_RCVMORE))
				break;
		}

		$msg = $this->validateRpc($r, $classMethod);

		$this->_test->isTrue(isset($msg['req']));

		if (count($params))
			$this->_test->equal($params, $msg['params']);

		if ($autoReply)
			$this->sendReply($msg);

		return $msg;
	}

/**
 * Send a reply, data can be a request, or a pre-crafted reply
 * when the 'req' is present and the 'rep' not it will change the request to a empty reply.
 * when the 'rep' is present and the 'req' not it shall leave the reply untouched.
 * when data is a string it shall be forwarded silently
 * 
 * result?
 */
	function sendReply($data, $result = null) {
		if (is_string($data)) {
			$ret = $this->__socket->send($data);
		} elseif (isset($data['req']) && !isset($data['rep'])) {
			unset($data['params']);
			$data['rep'] = $data['req'];
			unset($data['req']);
			$data['time'] = round(microtime(true) * 1000);
			$ret = $this->__socket->send(json_encode($data));
		} elseif (!isset($data['req']) && isset($data['rep'])) {
			$data['time'] = round(microtime(true) * 1000);
			$ret = $this->__socket->send(json_encode($data));
		} else {
			$this->_test->failure("RPC message is not a valid reply");
			var_dump($data);
		}
		$this->_test->equal($this->__socket, $ret);
	}
}