Initial commit: Robot ökoszisztéma v2.0 - Stabilizált jármű és szerviz robotok

backend/app/services/media_service.py

@@ -0,0 +1,45 @@
+# /opt/docker/dev/service_finder/backend/app/services/media_service.py
+from PIL import Image
+from PIL.ExifTags import TAGS, GPSTAGS
+import logging
+from typing import Tuple, Optional
+
+logger = logging.getLogger(__name__)
+
+class MediaService:
+    @staticmethod
+    def _convert_to_degrees(value) -> float:
+        """ EXIF racionális koordináták konvertálása tizedes fokká. """
+        try:
+            d = float(value[0])
+            m = float(value[1])
+            s = float(value[2])
+            return d + (m / 60.0) + (s / 3600.0)
+        except (IndexError, ZeroDivisionError, TypeError):
+            return 0.0
+
+    @classmethod
+    def extract_gps_info(cls, file_path: str) -> Optional[Tuple[float, float]]:
+        """ GPS koordináták kinyerése a kép metaadataiból (Robot Hunt alapja). """
+        try:
+            with Image.open(file_path) as image:
+                exif = image._getexif()
+                if not exif: return None
+
+                gps_info = {}
+                for tag, value in exif.items():
+                    if TAGS.get(tag) == "GPSInfo":
+                        for t in value:
+                            gps_info[GPSTAGS.get(t, t)] = value[t]
+
+                if 'GPSLatitude' in gps_info and 'GPSLongitude' in gps_info:
+                    lat = cls._convert_to_degrees(gps_info['GPSLatitude'])
+                    if gps_info.get('GPSLatitudeRef') != "N": lat = -lat
+                    
+                    lon = cls._convert_to_degrees(gps_info['GPSLongitude'])
+                    if gps_info.get('GPSLongitudeRef') != "E": lon = -lon
+
+                    return lat, lon
+        except Exception as e:
+            logger.warning(f"EXIF kiolvasási hiba ({file_path}): {e}")
+        return None