added RAG, Multiuser, TG bot

telegram-bot/bot/ha_client.py

@@ -141,3 +141,24 @@ class HaClient:
                 return int(session["id"])
         created = await self.create_session("Telegram")
         return int(created["id"])
+
+    async def download_media(self, path_or_url: str, *, ha_api_base: str | None = None) -> bytes:
+        base = ha_api_base or self.base_url
+        url = resolve_media_url(base, path_or_url)
+        async with httpx.AsyncClient(timeout=60.0) as client:
+            response = await client.get(url, headers=self._headers())
+        if response.status_code >= 400:
+            raise HaApiError(response.text.strip() or f"HTTP {response.status_code}", response.status_code)
+        return response.content
+
+
+def resolve_media_url(ha_api_base: str, path_or_url: str) -> str:
+    raw = (path_or_url or "").strip()
+    if raw.startswith("http://") or raw.startswith("https://"):
+        return raw
+    origin = ha_api_base.rstrip("/")
+    if origin.endswith("/api/v1"):
+        origin = origin[: -len("/api/v1")]
+    if not raw.startswith("/"):
+        raw = f"/{raw}"
+    return f"{origin}{raw}"