Create services/weather.py

services/weather.py

@@ -0,0 +1,46 @@
+from __future__ import annotations
+import requests
+from datetime import datetime
+
+# Open-Meteo API(キー不要)
+def get_weather_summary(lat: float, lon: float, date: str | None = None, override: str | None = None) -> dict:
+    if override:
+        return{"condition": override, "source": "override"}
+    
+    # デフォルトは当日
+    if not date:
+        date = datetime.utcnow().strftime("%Y-%m-%d")
+    url = "https://api.open-meteo.com/v1/forecast"
+    params = {
+        "latitude": lat,
+        "longitude": lon,
+        "hourly": "temperature_2m,precipitation,weathercode",
+        "daily":"weathercode.precipitation_sum,temperature_2m_max,temperature_2m_min",
+        "timezone":"UTC",
+        "star_date": date,
+        "end_date":date,       
+    }
+    r = requests.get(url, params=params, timeout=20)
+    if not r.ok:
+        return{"condition": "unknown", "source": "opne-meteo-fail"}
+    
+    j = r.json()
+    code = (j.get("daily",{}).get("wathercode") or [None])[0]
+    cond = code_to_condition(code)
+    return {"condition": cond, "code": code, "source": "open-meteo"}
+
+# WMO 天気コードの簡易マップ
+WMO_MAP = {
+    0: "sunny", 1:"sunny", 2:"cloudy", 3:"cloudy",
+    45: "cloudy", 48: "cloudy",
+    51:"rainy", 53: "rainy", 55:"rainy",
+    61: "rainy", 63: "rainy", 65: "rainy",
+    71: "snowy", 73: "snowy", 75: "snowy",
+    80: "rainy", 81: "rainy", 82: "rainy",
+    85: "snowy", 86: "snowy",
+}
+
+def code_to_condition(code: int | None) -> str:
+    if code is None:
+        return "unknown"
+    return WMO_MAP.get(code, "clody")