add gmaps utils

backend/trip/utils/gmaps.py

@@ -0,0 +1,46 @@
+# https://developers.google.com/maps/documentation/places/web-service/nearby-search
+# https://developers.google.com/maps/documentation/places/web-service/text-search
+# https://developers.google.com/maps/documentation/places/web-service/place-details
+# https://developers.google.com/maps/documentation/places/web-service/place-photos
+
+from typing import Any
+import httpx
+from fastapi import HTTPException
+
+
+def compute_avg_price(price_range: dict | None) -> float | None:
+    if not price_range:
+        return None
+
+    start = price_range.get("startPrice", {}).get("units")
+    end = price_range.get("endPrice", {}).get("units")
+    
+    if start and end:
+        return (int(start) + int(end)) / 2
+    elif start:
+        return int(start)
+    elif end:
+        return int(end)
+    else:
+        return None
+
+
+async def gmaps_textsearch(search: str, api_key: str) -> list[dict[str, Any]]:
+    url = "https://places.googleapis.com/v1/places:searchText"
+    body = {
+        "textQuery": search
+    }
+    headers = {
+        "Content-Type": "application/json",
+        "X-Goog-Api-Key": api_key,
+        "X-Goog-FieldMask": "places.id,places.types,places.location,places.priceRange,places.displayName,places.allowsDogs"
+    }
+
+    try:
+        async with httpx.AsyncClient(timeout=10.0) as client:
+            response = await client.post(url, json=body, headers=headers)
+            response.raise_for_status()
+            data = response.json()
+            return data.get('places', [])
+    except Exception:
+        raise HTTPException(status_code=400, detail="Bad Request")