added test mode and adapted for docker

app.py

@@ -12,6 +12,7 @@ PASSWORD = os.getenv("GARMIN_PASSWORD")
 START_DATE = datetime.date.fromisoformat(os.getenv("START_DATE", "2026-01-01"))
 GOAL_KM = float(os.getenv("GOAL_KM", "80"))
 ALLOWED_TYPES = os.getenv("ALLOWED_TYPES", "running,treadmill_running").split(",")
+TEST_MODE = os.getenv("TEST_MODE", "false").lower() == "true"  # Check if TEST_MODE is enabled
 
 CACHE_TTL = int(os.getenv("CACHE_TTL", "300"))  # seconds (default 5 mins)
 
@@ -45,6 +46,11 @@ def get_garmin_data():
 
     now = time.time()
 
+    # --- Return test data if in test mode ---
+    if TEST_MODE:
+        print("⚡ Test mode enabled, returning hardcoded data")
+        return {"total_km": 70, "goal_km": 100, "percent": 12.6, "status": "success"}
+
     # --- RETURN CACHED DATA ---
     if cached_data and (now - last_fetch_time < CACHE_TTL):
         print("⚡ Returning cached data")
@@ -136,4 +142,4 @@ def get_image():
 
 
 if __name__ == '__main__':
-    app.run(host='0.0.0.0', port=5000)
+    app.run(host='0.0.0.0', port=5000)