Fix updates and startup delays

fcco_converter/updater.py

@@ -39,37 +39,53 @@ def _fetch_json(url: str) -> list | dict:
         return json.loads(resp.read().decode("utf-8"))
 
 
-def check_for_updates() -> dict | None:
-    """Prüft, ob ein neues Release verfügbar ist.
+def _parse_version(v: str) -> list[int]:
+    parts = []
+    for p in v.lstrip("vV").split("."):
+        try:
+            parts.append(int(p))
+        except ValueError:
+            parts.append(0)
+    while len(parts) < 3:
+        parts.append(0)
+    return parts
 
+
+def check_for_updates() -> tuple[bool, str, str]:
+    """Prüft, ob auf Gitea ein neues Release (nach SemVer) vorliegt.
+    
     Returns:
-        Dict mit Release-Infos (tag_name, name, body, assets) oder None.
+        (has_update, new_version_string, asset_download_url)
     """
     try:
-        releases = _fetch_json(RELEASES_URL)
-        if not releases:
-            return None
-
-        # Neuestes (nicht als Draft/Prerelease markiertes) Release
-        for release in releases:
-            if release.get("draft") or release.get("prerelease"):
-                continue
-
-            tag = release.get("tag_name", "").lstrip("v")
-            if tag and tag != CURRENT_VERSION:
-                # Einfacher Versionsvergleich
-                try:
-                    remote_parts = [int(x) for x in tag.split(".")]
-                    local_parts = [int(x) for x in CURRENT_VERSION.split(".")]
-                    if remote_parts > local_parts:
-                        return release
-                except ValueError:
-                    continue
-            break  # Nur das neueste Release prüfen
-
-        return None
-    except (URLError, json.JSONDecodeError, OSError):
-        return None
+        req = Request(RELEASES_URL, headers={'User-Agent': 'fcco-Updater/1.0'})
+        with urlopen(req, timeout=5) as resp:
+            data = json.loads(resp.read().decode('utf-8'))
+            
+        if not data:
+            return False, "", ""
+            
+        # Gitea gibt Releases sortiert zurück, 0 = neuestes
+        release_info = data[0]
+        tag_name = release_info.get("tag_name", "")
+        
+        # Entferne eventuelles "v" Präfix
+        latest_version = tag_name.lstrip("vV")
+        
+        # Intelligenter Versions-Vergleich
+        if _parse_version(latest_version) > _parse_version(CURRENT_VERSION):
+            # Finde die passende Zip-Datei
+            expected_asset = _get_platform_asset_name()
+            for asset in release_info.get("assets", []):
+                if asset.get("name") == expected_asset:
+                    return True, latest_version, asset.get("browser_download_url", "")
+                    
+            return False, "", ""
+            
+        return False, "", ""
+    except Exception as e:
+        print(f"Update Check Error: {e}")
+        return False, "", ""
 
 
 def _get_platform_asset_name() -> str: