Update app.py

app.py

@@ -1,5 +1,6 @@
 import os
 import re
+import tempfile
 from datetime import datetime, timedelta, timezone
 
 import requests
@@ -25,7 +26,7 @@ def _fmt(dt: datetime) -> str:
     return dt.strftime("%Y-%m-%dT%H:%M:%S")
 
 def set_time_range(hours=None, days=None):
-    """依台北時間回傳 (timeFrom, timeTo) 字串"""
+    """依台北時間回傳 (timeFrom, timeTo) ISO 字串"""
     now = datetime.now(TAIPEI_TZ)
     if hours is not None:
         t_from = now - timedelta(hours=hours)
@@ -78,6 +79,8 @@ def parse_ea0015(obj):
     for q in quakes:
         ei   = q.get("EarthquakeInfo") or q.get("earthquakeInfo") or {}
         epic = ei.get("Epicenter")     or ei.get("epicenter")     or {}
+
+        # Magnitude 可能在 Magnitude 或 EarthquakeMagnitude
         mago = (
             ei.get("Magnitude") or ei.get("magnitude")
             or ei.get("EarthquakeMagnitude") or ei.get("earthquakeMagnitude")
@@ -89,6 +92,7 @@ def parse_ea0015(obj):
             or q.get("OriginTime") or q.get("originTime")
         )
 
+        # 經緯度多種鍵名
         lat_raw = (
             epic.get("EpicenterLat") or epic.get("epicenterLat")
             or epic.get("EpicenterLatitude") or epic.get("epicenterLatitude")
@@ -100,12 +104,14 @@ def parse_ea0015(obj):
             or epic.get("Lon") or epic.get("lon")
         )
 
+        # 深度：Depth / FocalDepth / FocalDepthKm / depth / focalDepth...
         depth_raw = (
             ei.get("Depth") or ei.get("depth")
             or ei.get("FocalDepth") or ei.get("focalDepth")
             or ei.get("FocalDepthKm") or ei.get("focalDepthKm")
         )
 
+        # 規模：MagnitudeValue / value / Magnitude / magnitude
         mag_raw = (
             mago.get("MagnitudeValue") or mago.get("magnitudeValue")
             or mago.get("Value") or mago.get("value")
@@ -192,7 +198,7 @@ def map_osm_html(df: pd.DataFrame):
     center = [d["Lat"].mean(), d["Lon"].mean()]
     m = folium.Map(location=center, zoom_start=6, tiles="OpenStreetMap", control_scale=True)
 
-    # 顏色條（深度）— 以 viridis（通用寫法）取代 Viridis_08
+    # 顏色條（深度）— 通用 viridis
     depth_min, depth_max = float(d["Depth_km"].min()), float(d["Depth_km"].max())
     if depth_min == depth_max:
         depth_min, depth_max = max(0.0, depth_min - 1), depth_max + 1
@@ -251,9 +257,11 @@ def query_and_render(time_from, time_to, sort_order):
         md = df_to_markdown(df)
         map_html = map_osm_html(df)
 
-        csv_bytes = df.to_csv(index=False).encode("utf-8-sig")
-        # 回傳 (bytes, filename) 讓（舊）Gradio 也能指定檔名
-        return md, map_html, (csv_bytes, "CWA_E-A0015-001.csv")
+        # ⬇️ 寫檔並回傳「檔案路徑」給 DownloadButton
+        tmp = tempfile.NamedTemporaryFile(delete=False, suffix=".csv", prefix="CWA_E-A0015-001_")
+        df.to_csv(tmp.name, index=False, encoding="utf-8-sig")
+
+        return md, map_html, tmp.name
     except Exception as e:
         return f"錯誤：{e}", "<div style='padding:8px'>（無法繪圖）</div>", None