YeePHP: discovery: first implementation of network light search

src/Discovery.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace SharkEzz\YeePHP;
+
+class Discovery
+{
+    private const DISCOVERY_REQUEST = "M-SEARCH * HTTP/1.1\r\n
+    HOST: 239.255.255.250:1982\r\n
+    MAN: \"ssdp:discover\"\r\n
+    ST: wifi_bulb\r\n";
+    private const MULTICAST_ADDRESS = "239.255.255.250";
+    private const MULTICAST_PORT = 1982;
+
+    /**
+     * @var resource The socket
+     */
+    private $socket;
+
+    /**
+     * @var array Bulbs array
+     */
+    private $bulbs;
+
+    public function __construct()
+    {
+        $this->socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+        socket_set_block($this->socket);
+    }
+
+    public function search(): array
+    {
+        $result = socket_sendto(
+            $this->socket,
+            self::DISCOVERY_REQUEST,
+            strlen(self::DISCOVERY_REQUEST),
+            0,
+            self::MULTICAST_ADDRESS,
+            self::MULTICAST_PORT
+        );
+
+        if(!$result)
+            throw new \Exception('Socket exception');
+
+        $res = socket_read($this->socket, 4096);
+
+        if(!$res)
+            throw new \Exception('Socket exception');
+
+        return [];
+    }
+
+    private function processResult(string $res): array
+    {
+        // TODO
+        return [];
+    }
+}