fix package layout for Decky runtime modulessafe-patch-refactor

1 files changed, 0 insertions, 685 deletions

diff --git a/backend/patcher.py b/backend/patcher.py
deleted file mode 100644
index 59d08f1..0000000
--- a/backend/patcher.py
+++ /dev/null
@@ -1,685 +0,0 @@
-"""Patch ownership, safe cleanup, and Steam-game operations."""
-
-import os
-import shutil
-from datetime import datetime, timezone
-from pathlib import Path
-from typing import Callable
-
-from . import config
-from .assets import (
-    BACKUP_DIRECTORY_NAME,
-    FRAMEGEN_BACKENDS,
-    FSR4_UPSCALER_FILENAME,
-    INJECTOR_FILENAMES,
-    MARKER_FILENAME,
-    MANIFEST_SCHEMA_VERSION,
-    RESTORABLE_BACKUP_FILES,
-    SUPPORT_FILES,
-    VALID_DLL_NAMES,
-    VARIANT_EXTRA_FILENAMES,
-)
-from .bundle import BundleManager
-from .files import file_sha256, files_match, read_json, write_json
-from .steam import SteamLibrary
-
-
-Logger = Callable[[str], None]
-
-
-class PatchManager:
-    def __init__(self, home: Path, bundle: BundleManager, steam: SteamLibrary, logger: Logger):
-        self.home = home
-        self.bundle = bundle
-        self.steam = steam
-        self.logger = logger
-
-    def _log(self, message: str) -> None:
-        self.logger(f"[Framegen] {message}")
-
-    @staticmethod
-    def _relative_path(root: Path, path: Path) -> str:
-        return path.resolve().relative_to(root.resolve()).as_posix()
-
-    def _safe_path(self, root: Path, value: str | Path) -> Path:
-        candidate = Path(value)
-        if candidate.is_absolute():
-            resolved = candidate.resolve()
-        else:
-            resolved = (root / candidate).resolve()
-        try:
-            resolved.relative_to(root.resolve())
-        except ValueError as exc:
-            raise ValueError(f"Path escapes patch directory: {value}") from exc
-        return resolved
-
-    def _read_marker(self, marker_path: Path) -> dict:
-        return read_json(marker_path)
-
-    def _find_marker(self, install_root: Path, appid: str | None = None) -> Path | None:
-        if not install_root.exists():
-            return None
-        try:
-            markers = sorted(path for path in install_root.rglob(MARKER_FILENAME) if path.is_file())
-        except OSError:
-            return None
-        for marker in markers:
-            metadata = self._read_marker(marker)
-            if appid is None or str(metadata.get("appid")) == str(appid):
-                return marker
-        return None
-
-    def _marker_target(self, marker_path: Path, metadata: dict) -> Path:
-        target_value = metadata.get("target_relative") or metadata.get("target_dir") or str(marker_path.parent)
-        target = self._safe_path(marker_path.parent, target_value)
-        if not target.is_dir():
-            raise FileNotFoundError(f"Patch target directory does not exist: {target}")
-        return target
-
-    def _bundle_source_for_proxy(self, variant: str, dll_name: str) -> Path:
-        candidates = [
-            self.bundle.variant_proxy_path(variant, dll_name),
-            self.bundle.variant_injector_path(variant),
-            self.bundle.fgmod_path / "renames" / dll_name,
-            self.bundle.fgmod_path / "OptiScaler.dll",
-        ]
-        for candidate in candidates:
-            if candidate and candidate.exists():
-                return candidate
-        raise FileNotFoundError(f"No injector source found for {dll_name}")
-
-    def _copy_plan(self, target_dir: Path, variant: str) -> list[tuple[str, Path]]:
-        plan: list[tuple[str, Path]] = []
-        # The proxy is the only file selected by the user; all other files are bundle-owned.
-        plan.append(("__proxy__", self._bundle_source_for_proxy(variant, "dxgi.dll")))
-        for filename in SUPPORT_FILES:
-            source = self.bundle.fgmod_path / filename
-            if source.is_file():
-                plan.append((filename, source))
-        upscaler = self.bundle.variant_path(variant)
-        if upscaler.is_file():
-            plan.append((FSR4_UPSCALER_FILENAME, upscaler))
-        for extra in self.bundle.variant_extra_files(variant):
-            source = self.bundle.variant_extra_path(variant, extra["name"])
-            if source.is_file():
-                plan.append((extra["name"], source))
-
-        for source_root, relative_root in (
-            (self.bundle.fgmod_path / "plugins", Path("plugins")),
-            (self.bundle.fgmod_path / "D3D12_Optiscaler", Path("D3D12_Optiscaler")),
-        ):
-            if not source_root.is_dir():
-                continue
-            for source in sorted(path for path in source_root.rglob("*") if path.is_file()):
-                plan.append(((relative_root / source.relative_to(source_root)).as_posix(), source))
-        return plan
-
-    def _backup_destination(self, target_dir: Path, relative: str, source: Path, force: bool = False) -> str | None:
-        destination = self._safe_path(target_dir, relative)
-        if not destination.exists():
-            return None
-        if destination.is_dir():
-            raise IsADirectoryError(f"Patch destination is a directory: {destination}")
-        if not force and files_match(destination, source):
-            return None
-
-        if relative in RESTORABLE_BACKUP_FILES:
-            legacy_backup = destination.with_name(destination.name + ".b")
-            if not legacy_backup.exists():
-                shutil.copy2(destination, legacy_backup)
-            elif not files_match(legacy_backup, destination):
-                raise RuntimeError(f"Refusing to overwrite an existing backup: {legacy_backup}")
-            return self._relative_path(target_dir, legacy_backup)
-
-        backup = target_dir / BACKUP_DIRECTORY_NAME / relative
-        backup.parent.mkdir(parents=True, exist_ok=True)
-        if backup.exists():
-            if not files_match(backup, destination):
-                raise RuntimeError(f"Refusing to overwrite an existing backup: {backup}")
-        else:
-            shutil.copy2(destination, backup)
-        return self._relative_path(target_dir, backup)
-
-    def _cleanup_empty_directories(self, target_dir: Path, managed_files: list[str]) -> None:
-        directories = sorted(
-            {self._safe_path(target_dir, path).parent for path in managed_files},
-            key=lambda path: len(path.parts),
-            reverse=True,
-        )
-        for directory in directories:
-            if directory == target_dir:
-                continue
-            try:
-                directory.rmdir()
-            except OSError:
-                pass
-        backup_dir = target_dir / BACKUP_DIRECTORY_NAME
-        try:
-            backup_dir.rmdir()
-        except OSError:
-            pass
-
-    def _rollback(
-        self,
-        target_dir: Path,
-        managed: list[dict],
-        backups: list[dict],
-    ) -> None:
-        for entry in reversed(managed):
-            try:
-                path = self._safe_path(target_dir, entry["path"])
-                backup = next((item["backup"] for item in backups if item["path"] == entry["path"]), None)
-                if backup:
-                    backup_path = self._safe_path(target_dir, backup)
-                    if backup_path.exists():
-                        if path.exists():
-                            path.unlink()
-                        shutil.move(backup_path, path)
-                elif path.exists() and entry.get("sha256") == file_sha256(path):
-                    path.unlink()
-            except (OSError, ValueError):
-                continue
-        self._cleanup_empty_directories(target_dir, [entry["path"] for entry in managed])
-
-    def _patch_directory(
-        self,
-        target_dir: Path,
-        dll_name: str,
-        variant: str,
-        framegen_backend: str,
-        *,
-        appid: str,
-        game_name: str,
-        original_launch_options: str,
-        previous_variant: str | None = None,
-    ) -> dict:
-        if dll_name not in VALID_DLL_NAMES:
-            return {"status": "error", "message": f"Invalid proxy DLL name: {dll_name}"}
-        if not self.bundle.fgmod_path.exists() or not (self.bundle.fgmod_path / "OptiScaler.dll").exists():
-            return {"status": "error", "message": "OptiScaler bundle not installed. Run Install first."}
-
-        variant = self.bundle.selected_variant(variant)
-        framegen_backend = self.bundle.selected_backend(framegen_backend)
-        previous_marker = target_dir / MARKER_FILENAME
-        if previous_marker.exists():
-            return {"status": "error", "message": f"Patch marker already exists in {target_dir}; clean it up before patching."}
-        variant_overrides = self.bundle.variant_config_overrides(variant)
-        if previous_variant == "rdna2-valve-411-pre10" and variant != previous_variant:
-            variant_overrides.setdefault("FSR.Fsr4ForceModel", "auto")
-            variant_overrides.setdefault("Plugins.LoadCustomAmdxc64OnRdna2", "false")
-
-        managed: list[dict] = []
-        backups: list[dict] = []
-        try:
-            plan = self._copy_plan(target_dir, variant)
-            proxy_source = self._bundle_source_for_proxy(variant, dll_name)
-            plan[0] = (dll_name, proxy_source)
-            config_path = target_dir / "OptiScaler.ini"
-            if config_path.exists():
-                plan.append(("OptiScaler.ini", config_path))
-            elif (self.bundle.fgmod_path / "OptiScaler.ini").exists():
-                plan.append(("OptiScaler.ini", self.bundle.fgmod_path / "OptiScaler.ini"))
-
-            for relative, source in plan:
-                destination = self._safe_path(target_dir, relative)
-                if not source.is_file():
-                    continue
-                backup = self._backup_destination(
-                    target_dir,
-                    relative,
-                    source,
-                    # Preserve every pre-existing destination. Identical bytes do
-                    # not prove that a file belongs to this plugin.
-                    force=destination.exists(),
-                )
-                if backup:
-                    backups.append({
-                        "path": relative,
-                        "backup": backup,
-                        "sha256": file_sha256(self._safe_path(target_dir, backup)),
-                    })
-                destination.parent.mkdir(parents=True, exist_ok=True)
-                if destination.resolve() != source.resolve():
-                    shutil.copy2(source, destination)
-                managed.append({
-                    "path": relative,
-                    "sha256": file_sha256(destination),
-                    "source_sha256": file_sha256(source),
-                })
-
-            if config_path.exists() and not config.configure(
-                config_path,
-                framegen_backend,
-                variant_overrides=variant_overrides,
-                logger=self.logger,
-            ):
-                raise RuntimeError("Could not update OptiScaler.ini")
-            config_entry = next((entry for entry in managed if entry["path"] == "OptiScaler.ini"), None)
-            if config_entry:
-                config_entry["sha256"] = file_sha256(config_path)
-
-            payload = {
-                "schema_version": MANIFEST_SCHEMA_VERSION,
-                "appid": str(appid),
-                "game_name": game_name,
-                "dll_name": dll_name,
-                "target_dir": str(target_dir),
-                "target_relative": ".",
-                "original_launch_options": original_launch_options,
-                "backed_up_files": [item["path"] for item in backups],
-                "backups": backups,
-                "managed_files": managed,
-                "managed_directories": sorted({str(Path(item["path"]).parent) for item in managed if Path(item["path"]).parent != Path(".")}),
-                "optiscaler_version": self.bundle.fgmod_version(),
-                "fsr4_variant": variant,
-                "fsr4_variant_label": self.bundle.variant_info(variant)["label"],
-                "fsr4_upscaler_sha256": file_sha256(target_dir / FSR4_UPSCALER_FILENAME) if (target_dir / FSR4_UPSCALER_FILENAME).exists() else None,
-                "framegen_backend": framegen_backend,
-                "framegen_backend_label": FRAMEGEN_BACKENDS[framegen_backend],
-                "patched_at": datetime.now(timezone.utc).isoformat(),
-            }
-            # The marker is written last, so an interrupted copy is never advertised as a complete patch.
-            write_json(previous_marker, payload)
-            return {
-                "status": "success",
-                "message": f"OptiScaler files copied to {target_dir} using {self.bundle.variant_info(variant)['label']}",
-                "fsr4_variant": variant,
-                "fsr4_variant_label": self.bundle.variant_info(variant)["label"],
-                "fsr4_upscaler_sha256": payload["fsr4_upscaler_sha256"],
-                "optiscaler_version": payload["optiscaler_version"],
-                "framegen_backend": framegen_backend,
-            }
-        except (OSError, RuntimeError, ValueError) as exc:
-            self._rollback(target_dir, managed, backups)
-            self._log(f"Patch failed for {target_dir}: {exc}")
-            return {"status": "error", "message": f"Patch failed: {exc}"}
-
-    def _managed_entries(self, target_dir: Path, metadata: dict) -> tuple[list[tuple[dict, Path]], list[str]]:
-        entries: list[tuple[dict, Path]] = []
-        errors: list[str] = []
-        for entry in metadata.get("managed_files", []):
-            if not isinstance(entry, dict) or not entry.get("path"):
-                errors.append("Patch marker contains an invalid managed file entry.")
-                continue
-            try:
-                path = self._safe_path(target_dir, entry["path"])
-            except ValueError as exc:
-                errors.append(str(exc))
-                continue
-            expected = str(entry.get("sha256") or "")
-            if not expected:
-                errors.append(f"Patch marker has no hash for {entry['path']}.")
-            elif path.exists() and (not path.is_file() or file_sha256(path).lower() != expected.lower()):
-                errors.append(f"Refusing to remove modified managed file: {path}")
-            entries.append((entry, path))
-        return entries, errors
-
-    def _restore_backups(self, target_dir: Path, metadata: dict) -> list[str]:
-        restored: list[str] = []
-        for item in metadata.get("backups", []):
-            if not isinstance(item, dict) or not item.get("path") or not item.get("backup"):
-                raise ValueError("Patch marker contains an invalid backup entry.")
-            path = self._safe_path(target_dir, item["path"])
-            backup = self._safe_path(target_dir, item["backup"])
-            if not backup.exists():
-                continue
-            if not backup.is_file():
-                raise ValueError(f"Patch backup is not a file: {backup}")
-            expected = str(item.get("sha256") or "")
-            if expected and file_sha256(backup).lower() != expected.lower():
-                raise RuntimeError(f"Refusing to restore a modified backup: {backup}")
-            if path.exists():
-                raise RuntimeError(f"Refusing to overwrite a file while restoring backup: {path}")
-            path.parent.mkdir(parents=True, exist_ok=True)
-            shutil.move(backup, path)
-            restored.append(str(item["path"]))
-
-        # Older releases used ``name.b`` backups and listed only their base names.
-        for raw_name in metadata.get("backed_up_files", []):
-            name = Path(str(raw_name)).name
-            if name not in RESTORABLE_BACKUP_FILES:
-                continue
-            original = self._safe_path(target_dir, name)
-            backup = self._safe_path(target_dir, name + ".b")
-            if backup.exists() and not original.exists():
-                shutil.move(backup, original)
-                restored.append(name)
-        return restored
-
-    def _validate_backups(self, target_dir: Path, metadata: dict) -> None:
-        for item in metadata.get("backups", []):
-            if not isinstance(item, dict) or not item.get("path") or not item.get("backup"):
-                raise ValueError("Patch marker contains an invalid backup entry.")
-            self._safe_path(target_dir, item["path"])
-            backup = self._safe_path(target_dir, item["backup"])
-            if not backup.exists():
-                continue
-            if not backup.is_file():
-                raise ValueError(f"Patch backup is not a file: {backup}")
-            expected = str(item.get("sha256") or "")
-            if expected and file_sha256(backup).lower() != expected.lower():
-                raise RuntimeError(f"Refusing to restore a modified backup: {backup}")
-
-    def _legacy_owned_paths(self, target_dir: Path, metadata: dict) -> list[Path]:
-        paths: list[Path] = []
-        for entry in metadata.get("managed_files", []):
-            if isinstance(entry, dict) and entry.get("path"):
-                try:
-                    paths.append(self._safe_path(target_dir, entry["path"]))
-                except ValueError:
-                    continue
-
-        variant = self.bundle.normalize_variant(metadata.get("fsr4_variant"))
-        proxy_sources = [
-            self.bundle.fgmod_path / "OptiScaler.dll",
-            self.bundle.fgmod_path / "renames",
-            self.bundle.variant_dir(variant) / "renames",
-        ]
-        for filename in INJECTOR_FILENAMES:
-            target = target_dir / filename
-            if not target.is_file():
-                continue
-            matches_bundle = False
-            for source in proxy_sources:
-                candidate = source if source.is_file() and source.name == filename else source / filename
-                if candidate.is_file() and files_match(target, candidate):
-                    matches_bundle = True
-                    break
-            if matches_bundle:
-                paths.append(target)
-        for filename in SUPPORT_FILES + VARIANT_EXTRA_FILENAMES + [FSR4_UPSCALER_FILENAME]:
-            target = target_dir / filename
-            if target.is_file() and self.bundle.is_managed_support_file(target):
-                paths.append(target)
-        for relative in (Path("plugins/OptiPatcher.asi"),):
-            target = target_dir / relative
-            source = self.bundle.fgmod_path / relative
-            if target.is_file() and source.is_file() and files_match(target, source):
-                paths.append(target)
-        d3d12_source = self.bundle.fgmod_path / "D3D12_Optiscaler"
-        d3d12_target = target_dir / "D3D12_Optiscaler"
-        if d3d12_source.is_dir() and d3d12_target.is_dir():
-            for source in d3d12_source.rglob("*"):
-                if source.is_file():
-                    candidate = d3d12_target / source.relative_to(d3d12_source)
-                    if candidate.is_file() and files_match(candidate, source):
-                        paths.append(candidate)
-        unique: list[Path] = []
-        seen: set[str] = set()
-        for path in paths:
-            if str(path) not in seen:
-                unique.append(path)
-                seen.add(str(path))
-        return unique
-
-    def _unpatch_target(self, target_dir: Path, marker_path: Path | None) -> dict:
-        metadata = self._read_marker(marker_path) if marker_path else {
-            "backed_up_files": [
-                name for name in RESTORABLE_BACKUP_FILES
-                if (target_dir / f"{name}.b").is_file()
-            ],
-        }
-        try:
-            if marker_path and marker_path.exists() and not metadata:
-                return {"status": "error", "message": f"Patch marker is unreadable: {marker_path}"}
-            schema_version = int(metadata.get("schema_version") or 1) if metadata else 1
-            if schema_version >= MANIFEST_SCHEMA_VERSION:
-                entries, errors = self._managed_entries(target_dir, metadata)
-                if errors:
-                    return {"status": "error", "message": " ".join(errors)}
-                self._validate_backups(target_dir, metadata)
-                managed_paths = [path for _, path in entries]
-                for _, path in entries:
-                    if path.exists():
-                        path.unlink()
-                restored = self._restore_backups(target_dir, metadata)
-                self._cleanup_empty_directories(target_dir, [str(path.relative_to(target_dir)) for path in managed_paths])
-            else:
-                owned = self._legacy_owned_paths(target_dir, metadata)
-                entries, errors = self._managed_entries(target_dir, metadata)
-                if errors:
-                    return {"status": "error", "message": " ".join(errors)}
-                owned.extend(path for _, path in entries if path not in owned)
-                for path in owned:
-                    if path.is_file():
-                        path.unlink()
-                restored = self._restore_backups(target_dir, metadata)
-                self._cleanup_empty_directories(target_dir, [str(path.relative_to(target_dir)) for path in owned])
-            if marker_path and marker_path.exists():
-                marker_path.unlink()
-            return {
-                "status": "success",
-                "message": f"OptiScaler files removed from {target_dir}",
-                "restored_files": restored,
-            }
-        except (OSError, RuntimeError, ValueError) as exc:
-            self._log(f"Unpatch failed for {target_dir}: {exc}")
-            return {"status": "error", "message": f"Unpatch failed: {exc}"}
-
-    def resolve_target_directory(self, directory: str) -> Path:
-        target = Path(directory).expanduser()
-        if not target.exists():
-            raise FileNotFoundError(f"Target directory does not exist: {directory}")
-        if not target.is_dir():
-            raise NotADirectoryError(f"Target path is not a directory: {directory}")
-        if not os.access(target, os.W_OK | os.X_OK):
-            raise PermissionError(f"Insufficient permissions for {directory}")
-        return target.resolve()
-
-    def manual_patch_directory(
-        self,
-        directory: str,
-        dll_name: str,
-        fsr4_variant: str,
-        framegen_backend: str | None = None,
-    ) -> dict:
-        try:
-            target = self.resolve_target_directory(directory)
-        except (FileNotFoundError, NotADirectoryError, PermissionError) as exc:
-            return {"status": "error", "message": str(exc)}
-        marker = target / MARKER_FILENAME
-        previous_metadata = self._read_marker(marker) if marker.exists() else {}
-        previous_variant = previous_metadata.get("fsr4_variant")
-        if marker.exists():
-            if str(previous_metadata.get("appid")) not in ("", "manual", "None"):
-                return {"status": "error", "message": "This directory is managed by an AppID patch; unpatch it there first."}
-            cleanup = self._unpatch_target(target, marker)
-            if cleanup["status"] != "success":
-                return cleanup
-        return self._patch_directory(
-            target,
-            dll_name,
-            self.bundle.selected_variant(fsr4_variant),
-            self.bundle.selected_backend(framegen_backend),
-            appid="manual",
-            game_name="Manual patch",
-            original_launch_options="",
-            previous_variant=previous_variant,
-        )
-
-    def manual_unpatch_directory(self, directory: str) -> dict:
-        try:
-            target = self.resolve_target_directory(directory)
-        except (FileNotFoundError, NotADirectoryError, PermissionError) as exc:
-            return {"status": "error", "message": str(exc)}
-        marker = target / MARKER_FILENAME
-        return self._unpatch_target(target, marker if marker.exists() else None)
-
-    def list_installed_games(self) -> dict:
-        try:
-            return {
-                "status": "success",
-                "games": [
-                    {
-                        "appid": str(game["appid"]),
-                        "name": game["name"],
-                        "install_found": Path(game["install_path"]).exists(),
-                    }
-                    for game in self.steam.find_installed_games()
-                ],
-            }
-        except Exception as exc:
-            self._log(str(exc))
-            return {"status": "error", "message": str(exc)}
-
-    def get_game_status(self, appid: str) -> dict:
-        try:
-            game_info = self.steam.game_record(str(appid))
-            if not game_info:
-                return {
-                    "status": "success", "appid": str(appid), "install_found": False, "patched": False,
-                    "dll_name": None, "target_dir": None, "fsr4_variant": None, "fsr4_variant_label": None,
-                    "framegen_backend": None, "message": "Game not found in Steam library.",
-                }
-            install_root = Path(game_info["install_path"])
-            base = {
-                "status": "success", "appid": str(appid), "name": game_info["name"],
-                "install_found": install_root.exists(), "patched": False, "dll_name": None,
-                "target_dir": None, "fsr4_variant": None, "fsr4_variant_label": None,
-                "framegen_backend": None,
-            }
-            if not install_root.exists():
-                return {**base, "message": "Game install directory not found."}
-            marker = self._find_marker(install_root, str(appid))
-            if not marker:
-                return {**base, "message": "Not patched."}
-            metadata = self._read_marker(marker)
-            target_dir = self._marker_target(marker, metadata)
-            dll_name = str(metadata.get("dll_name") or "dxgi.dll")
-            upscaler = target_dir / FSR4_UPSCALER_FILENAME
-            upscaler_sha256 = file_sha256(upscaler) if upscaler.is_file() else None
-            variant = self.bundle.detect_variant(target_dir, upscaler_sha256) or self.bundle.normalize_variant(metadata.get("fsr4_variant"))
-            backend = self.bundle.normalize_backend(metadata.get("framegen_backend") or self.bundle.selected_backend())
-            dll_present = (target_dir / dll_name).is_file()
-            return {
-                **base,
-                "patched": dll_present,
-                "dll_name": dll_name,
-                "target_dir": str(target_dir),
-                "patched_at": metadata.get("patched_at"),
-                "optiscaler_version": metadata.get("optiscaler_version"),
-                "fsr4_variant": variant,
-                "fsr4_variant_label": self.bundle.variant_info(variant)["label"],
-                "fsr4_upscaler_sha256": upscaler_sha256,
-                "framegen_backend": backend,
-                "framegen_backend_label": FRAMEGEN_BACKENDS[backend],
-                "message": f"Patched using {dll_name} with {self.bundle.variant_info(variant)['label']}." if dll_present else f"Marker found but {dll_name} is missing. Reinstall recommended.",
-            }
-        except Exception as exc:
-            self._log(f"get_game_status failed for {appid}: {exc}")
-            return {"status": "error", "message": str(exc)}
-
-    @staticmethod
-    def build_managed_launch_options(dll_name: str) -> str:
-        if dll_name == "OptiScaler.asi":
-            return "SteamDeck=0 %command%"
-        base = dll_name.replace(".dll", "")
-        return f"WINEDLLOVERRIDES={base}=n,b SteamDeck=0 %command%"
-
-    @staticmethod
-    def is_managed_launch_options(options: str) -> bool:
-        normalized = " ".join((options or "").replace('"', "").split())
-        if not normalized:
-            return False
-        return any(
-            dll_name != "OptiScaler.asi" and f"WINEDLLOVERRIDES={dll_name.replace('.dll', '')}=n,b" in normalized
-            for dll_name in VALID_DLL_NAMES
-        ) or "fgmod/fgmod" in normalized
-
-    def patch_game(
-        self,
-        appid: str,
-        dll_name: str,
-        current_launch_options: str,
-        fsr4_variant: str,
-        framegen_backend: str | None = None,
-    ) -> dict:
-        try:
-            if dll_name not in VALID_DLL_NAMES:
-                return {"status": "error", "message": f"Invalid proxy DLL name: {dll_name}"}
-            game_info = self.steam.game_record(str(appid))
-            if not game_info:
-                return {"status": "error", "message": "Game not found in Steam library."}
-            install_root = Path(game_info["install_path"])
-            if not install_root.exists():
-                return {"status": "error", "message": "Game install directory does not exist."}
-            if self.steam.is_game_running(game_info):
-                return {"status": "error", "message": "Close the game before patching."}
-            if not self.bundle.fgmod_path.exists():
-                return {"status": "error", "message": "OptiScaler bundle not installed. Run Install first."}
-
-            existing_marker = self._find_marker(install_root)
-            existing_metadata = self._read_marker(existing_marker) if existing_marker else {}
-            if existing_marker and str(existing_metadata.get("appid")) not in (str(appid), "manual", "None"):
-                return {"status": "error", "message": "Another Framegen patch marker was found in this game install."}
-            original_options = current_launch_options or ""
-            stored_options = str(existing_metadata.get("original_launch_options") or "")
-            if stored_options and not self.is_managed_launch_options(stored_options):
-                original_options = stored_options
-            if self.is_managed_launch_options(original_options):
-                original_options = ""
-
-            if existing_marker:
-                old_target = self._marker_target(existing_marker, existing_metadata)
-                cleanup = self._unpatch_target(old_target, existing_marker)
-                if cleanup["status"] != "success":
-                    return cleanup
-            target_dir, _ = self.steam.guess_patch_target(game_info)
-            result = self._patch_directory(
-                target_dir,
-                dll_name,
-                self.bundle.selected_variant(fsr4_variant),
-                self.bundle.selected_backend(framegen_backend),
-                appid=str(appid),
-                game_name=game_info["name"],
-                original_launch_options=original_options,
-                previous_variant=existing_metadata.get("fsr4_variant"),
-            )
-            if result["status"] != "success":
-                return result
-            backend = result.get("framegen_backend") or self.bundle.selected_backend(framegen_backend)
-            return {
-                **result,
-                "appid": str(appid),
-                "name": game_info["name"],
-                "dll_name": dll_name,
-                "target_dir": str(target_dir),
-                "launch_options": self.build_managed_launch_options(dll_name),
-                "original_launch_options": original_options,
-                "framegen_backend": backend,
-                "message": f"Patched {game_info['name']} using {dll_name} with {result.get('fsr4_variant_label') or self.bundle.variant_info(fsr4_variant)['label']}.",
-            }
-        except Exception as exc:
-            self._log(f"patch_game failed for {appid}: {exc}")
-            return {"status": "error", "message": str(exc)}
-
-    def unpatch_game(self, appid: str) -> dict:
-        try:
-            game_info = self.steam.game_record(str(appid))
-            if not game_info:
-                return {"status": "error", "message": "Game not found in Steam library."}
-            install_root = Path(game_info["install_path"])
-            if not install_root.exists():
-                return {"status": "success", "appid": str(appid), "name": game_info["name"], "launch_options": "", "message": "Game install directory does not exist."}
-            if self.steam.is_game_running(game_info):
-                return {"status": "error", "message": "Close the game before unpatching."}
-            marker = self._find_marker(install_root, str(appid))
-            if not marker:
-                return {"status": "success", "appid": str(appid), "name": game_info["name"], "launch_options": "", "message": "No Framegen patch found for this game."}
-            metadata = self._read_marker(marker)
-            target_dir = self._marker_target(marker, metadata)
-            original_options = str(metadata.get("original_launch_options") or "")
-            cleanup = self._unpatch_target(target_dir, marker)
-            if cleanup["status"] != "success":
-                return {**cleanup, "appid": str(appid), "name": game_info["name"]}
-            self._log(f"unpatch_game success: appid={appid} target={target_dir}")
-            return {
-                "status": "success",
-                "appid": str(appid),
-                "name": game_info["name"],
-                "launch_options": original_options,
-                "message": f"Unpatched {game_info['name']}.",
-            }
-        except Exception as exc:
-            self._log(f"unpatch_game failed for {appid}: {exc}")
-            return {"status": "error", "message": str(exc)}