Hermes-agent

plugins/google_meet/node/client.py

@@ -0,0 +1,107 @@
+"""Gateway-side RPC client for a remote meet node.
+
+Each call opens a short-lived synchronous WebSocket to the node, sends
+exactly one request, reads exactly one response, and closes. This keeps
+the client trivial to use from non-async tool handlers and avoids
+maintaining persistent connection state across agent turns.
+
+The ``websockets`` package is an optional dep — we import it lazily so
+plugin load doesn't require it.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Dict, Optional
+
+from plugins.google_meet.node import protocol as _proto
+
+
+class NodeClient:
+    """Thin synchronous WS client matching the server's request surface."""
+
+    def __init__(self, url: str, token: str, timeout: float = 10.0) -> None:
+        if not isinstance(url, str) or not url:
+            raise ValueError("url must be a non-empty string")
+        if not isinstance(token, str) or not token:
+            raise ValueError("token must be a non-empty string")
+        self.url = url
+        self.token = token
+        self.timeout = float(timeout)
+
+    # ----- core RPC -----------------------------------------------------
+
+    def _rpc(self, type: str, payload: Dict[str, Any]) -> Dict[str, Any]:
+        """Send one request, return the response payload dict.
+
+        Raises RuntimeError when the server sends an ``error`` envelope
+        or the response id doesn't match.
+        """
+        try:
+            from websockets.sync.client import connect  # type: ignore
+        except ImportError as exc:
+            raise RuntimeError(
+                "NodeClient requires the 'websockets' package. "
+                "Install it with: pip install websockets"
+            ) from exc
+
+        req = _proto.make_request(type, self.token, payload)
+        raw_out = _proto.encode(req)
+
+        with connect(self.url, open_timeout=self.timeout,
+                     close_timeout=self.timeout) as ws:
+            ws.send(raw_out)
+            raw_in = ws.recv(timeout=self.timeout)
+
+        if isinstance(raw_in, (bytes, bytearray)):
+            raw_in = raw_in.decode("utf-8")
+        resp = _proto.decode(raw_in)
+
+        if resp.get("type") == "error":
+            raise RuntimeError(f"node error: {resp.get('error', '<unknown>')}")
+        if resp.get("id") != req["id"]:
+            raise RuntimeError(
+                f"response id mismatch: sent {req['id']}, got {resp.get('id')!r}"
+            )
+        payload_out = resp.get("payload")
+        if not isinstance(payload_out, dict):
+            # Ping returns {"type": "pong", "payload": {...}} — still a dict.
+            raise RuntimeError("response missing payload dict")
+        return payload_out
+
+    # ----- convenience methods -----------------------------------------
+
+    def start_bot(
+        self,
+        url: str,
+        guest_name: str = "Hermes Agent",
+        duration: Optional[str] = None,
+        headed: bool = False,
+        mode: str = "transcribe",
+    ) -> Dict[str, Any]:
+        payload: Dict[str, Any] = {
+            "url": url,
+            "guest_name": guest_name,
+            "headed": bool(headed),
+            "mode": mode,
+        }
+        if duration is not None:
+            payload["duration"] = duration
+        return self._rpc("start_bot", payload)
+
+    def stop(self) -> Dict[str, Any]:
+        return self._rpc("stop", {})
+
+    def status(self) -> Dict[str, Any]:
+        return self._rpc("status", {})
+
+    def transcript(self, last: Optional[int] = None) -> Dict[str, Any]:
+        payload: Dict[str, Any] = {}
+        if last is not None:
+            payload["last"] = int(last)
+        return self._rpc("transcript", payload)
+
+    def say(self, text: str) -> Dict[str, Any]:
+        return self._rpc("say", {"text": str(text)})
+
+    def ping(self) -> Dict[str, Any]:
+        return self._rpc("ping", {})