gateway.websocket: add implementation for _handle_3

- gateway.websocket: add dummy implementation for _handle_5

litecord/gateway/opcodes.py

@@ -4,13 +4,21 @@ class OP:
     HEARTBEAT = 1
     IDENTIFY = 2
     STATUS_UPDATE = 3
+
+    # voice connection / disconnection
     VOICE_UPDATE = 4
     VOICE_PING = 5
+
     RESUME = 6
     RECONNECT = 7
     REQ_GUILD_MEMBERS = 8
     INVALID_SESSION = 9
+
     HELLO = 10
     HEARTBEAT_ACK = 11
+
+    # request member / presence information
     GUILD_SYNC = 12
-    UNKNOWN = 14
+
+    # request for lazy guilds
+    LAZY_REQUEST = 14

litecord/gateway/websocket.py

@@ -355,12 +355,30 @@ class GatewayWebsocket:
 
     async def handle_3(self, payload: Dict[str, Any]):
         """Handle OP 3 Status Update."""
-        pass
+        presence = payload['d']
+
+        # update_status will take care of validation and
+        # setting new presence to state
+        await self.update_status(presence)
 
     async def handle_4(self, payload: Dict[str, Any]):
         """Handle OP 4 Voice Status Update."""
         pass
 
+    async def _handle_5(self, payload: Dict[str, Any]):
+        """Handle OP 5 Voice Server Ping.
+
+        packet's d structure:
+
+        {
+            delay: num,
+            speaking: num,
+            ssrc: num
+        }
+
+        """
+        pass
+
     async def handle_6(self, payload: Dict[str, Any]):
         """Handle OP 6 Resume."""
         data = payload['d']