restructure for maintainability

1 files changed, 60 insertions, 0 deletions

diff --git a/src/services/dll_detection_service.py b/src/services/dll_detection_service.py
new file mode 100644
index 0000000..095b3b5
--- /dev/null
+++ b/src/services/dll_detection_service.py
@@ -0,0 +1,60 @@
+import os
+from typing import Dict, Any
+import decky
+
+
+class DllDetectionService:
+    """Service for detecting Lossless Scaling DLL"""
+    
+    async def check_lossless_scaling_dll(self) -> Dict[str, Any]:
+        """Check if Lossless Scaling DLL is available at the expected paths"""
+        try:
+            # Check environment variable first
+            dll_path = os.getenv("LSFG_DLL_PATH")
+            if dll_path and dll_path.strip():
+                dll_path_str = dll_path.strip()
+                if os.path.exists(dll_path_str):
+                    return {
+                        "detected": True,
+                        "path": dll_path_str,
+                        "source": "LSFG_DLL_PATH environment variable"
+                    }
+            
+            # Check XDG_DATA_HOME path
+            data_dir = os.getenv("XDG_DATA_HOME")
+            if data_dir and data_dir.strip():
+                dll_path_str = os.path.join(data_dir.strip(), "Steam", "steamapps", "common", "Lossless Scaling", "Lossless.dll")
+                if os.path.exists(dll_path_str):
+                    return {
+                        "detected": True,
+                        "path": dll_path_str,
+                        "source": "XDG_DATA_HOME Steam directory"
+                    }
+            
+            # Check HOME/.local/share path
+            home_dir = os.getenv("HOME")
+            if home_dir and home_dir.strip():
+                dll_path_str = os.path.join(home_dir.strip(), ".local", "share", "Steam", "steamapps", "common", "Lossless Scaling", "Lossless.dll")
+                if os.path.exists(dll_path_str):
+                    return {
+                        "detected": True,
+                        "path": dll_path_str,
+                        "source": "HOME/.local/share Steam directory"
+                    }
+            
+            # DLL not found in any expected location
+            return {
+                "detected": False,
+                "path": None,
+                "source": None,
+                "message": "Lossless Scaling DLL not found in expected locations"
+            }
+            
+        except Exception as e:
+            decky.logger.error(f"Error checking Lossless Scaling DLL: {str(e)}")
+            return {
+                "detected": False,
+                "path": None,
+                "source": None,
+                "error": str(e)
+            }