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"""
Configuration service for TOML-based lsfg configuration management.
"""
from pathlib import Path
from typing import Dict, Any
from .base_service import BaseService
from .config_schema import ConfigurationManager, ConfigurationData, CONFIG_SCHEMA
from .types import ConfigurationResponse
class ConfigurationService(BaseService):
"""Service for managing TOML-based lsfg configuration"""
def get_config(self) -> ConfigurationResponse:
"""Read current TOML configuration
Returns:
ConfigurationResponse with current configuration or error
"""
try:
if not self.config_file_path.exists():
# Return default configuration with DLL detection if file doesn't exist
from .dll_detection import DllDetectionService
dll_service = DllDetectionService(self.log)
config = ConfigurationManager.get_defaults_with_dll_detection(dll_service)
return {
"success": True,
"config": config,
"message": "Using default configuration (config file not found)",
"error": None
}
content = self.config_file_path.read_text(encoding='utf-8')
config = ConfigurationManager.parse_toml_content(content)
return {
"success": True,
"config": config,
"message": None,
"error": None
}
except (OSError, IOError) as e:
error_msg = f"Error reading lsfg config: {str(e)}"
self.log.error(error_msg)
return {
"success": False,
"config": None,
"message": None,
"error": str(e)
}
except Exception as e:
error_msg = f"Error parsing config file: {str(e)}"
self.log.error(error_msg)
# Return defaults with DLL detection if parsing fails
from .dll_detection import DllDetectionService
dll_service = DllDetectionService(self.log)
config = ConfigurationManager.get_defaults_with_dll_detection(dll_service)
return {
"success": True,
"config": config,
"message": f"Using default configuration due to parse error: {str(e)}",
"error": None
}
def update_config(self, dll: str, multiplier: int, flow_scale: float,
performance_mode: bool, hdr_mode: bool,
experimental_present_mode: str = "",
experimental_fps_limit: int = 0,
enable_wow64: bool = False,
disable_steamdeck_mode: bool = False) -> ConfigurationResponse:
"""Update TOML configuration
Args:
dll: Path to Lossless.dll
multiplier: LSFG multiplier value
flow_scale: LSFG flow scale value
performance_mode: Whether to enable performance mode
hdr_mode: Whether to enable HDR mode
experimental_present_mode: Experimental Vulkan present mode override
experimental_fps_limit: Experimental FPS limit for DXVK games
enable_wow64: Whether to enable PROTON_USE_WOW64=1 for 32-bit games
disable_steamdeck_mode: Whether to disable Steam Deck mode
Returns:
ConfigurationResponse with success status
"""
try:
# Create configuration from individual arguments
config = ConfigurationManager.create_config_from_args(
dll, multiplier, flow_scale, performance_mode, hdr_mode,
experimental_present_mode, experimental_fps_limit, enable_wow64, disable_steamdeck_mode
)
# Generate TOML content using centralized manager
toml_content = ConfigurationManager.generate_toml_content(config)
# Ensure config directory exists
self.config_dir.mkdir(parents=True, exist_ok=True)
# Write the updated config directly to preserve inode for file watchers
self._write_file(self.config_file_path, toml_content, 0o644)
# Update the launch script with the new configuration
script_result = self.update_lsfg_script(config)
if not script_result["success"]:
self.log.warning(f"Failed to update launch script: {script_result['error']}")
self.log.info(f"Updated lsfg TOML configuration: "
f"dll='{dll}', multiplier={multiplier}, flow_scale={flow_scale}, "
f"performance_mode={performance_mode}, hdr_mode={hdr_mode}, "
f"experimental_present_mode='{experimental_present_mode}', "
f"experimental_fps_limit={experimental_fps_limit}, "
f"enable_wow64={enable_wow64}, disable_steamdeck_mode={disable_steamdeck_mode}")
return {
"success": True,
"config": config,
"message": "lsfg configuration updated successfully",
"error": None
}
except (OSError, IOError) as e:
error_msg = f"Error updating lsfg config: {str(e)}"
self.log.error(error_msg)
return {
"success": False,
"config": None,
"message": None,
"error": str(e)
}
except ValueError as e:
error_msg = f"Invalid configuration arguments: {str(e)}"
self.log.error(error_msg)
return {
"success": False,
"config": None,
"message": None,
"error": str(e)
}
def update_dll_path(self, dll_path: str) -> ConfigurationResponse:
"""Update just the DLL path in the configuration
Args:
dll_path: Path to the Lossless.dll file
Returns:
ConfigurationResponse with success status
"""
try:
# Get current config
current_response = self.get_config()
if not current_response["success"] or current_response["config"] is None:
# If we can't read current config, use defaults with DLL detection
from .dll_detection import DllDetectionService
dll_service = DllDetectionService(self.log)
config = ConfigurationManager.get_defaults_with_dll_detection(dll_service)
else:
config = current_response["config"]
# Update just the DLL path
config["dll"] = dll_path
# Generate TOML content and write it
toml_content = ConfigurationManager.generate_toml_content(config)
# Ensure config directory exists
self.config_dir.mkdir(parents=True, exist_ok=True)
# Write the updated config directly to preserve inode for file watchers
self._write_file(self.config_file_path, toml_content, 0o644)
self.log.info(f"Updated DLL path in lsfg configuration: '{dll_path}'")
return {
"success": True,
"config": config,
"message": f"DLL path updated to: {dll_path}",
"error": None
}
except Exception as e:
error_msg = f"Error updating DLL path: {str(e)}"
self.log.error(error_msg)
return {
"success": False,
"config": None,
"message": None,
"error": str(e)
}
def update_lsfg_script(self, config: ConfigurationData) -> ConfigurationResponse:
"""Update the ~/lsfg launch script with current configuration
Args:
config: Configuration data to apply to the script
Returns:
ConfigurationResponse indicating success or failure
"""
try:
script_content = self._generate_script_content(config)
# Write the script file
self._write_file(self.lsfg_script_path, script_content, 0o755)
self.log.info(f"Updated lsfg launch script at {self.lsfg_script_path}")
return {
"success": True,
"config": config,
"message": "Launch script updated successfully",
"error": None
}
except Exception as e:
error_msg = f"Error updating launch script: {str(e)}"
self.log.error(error_msg)
return {
"success": False,
"config": None,
"message": None,
"error": str(e)
}
def _generate_script_content(self, config: ConfigurationData) -> str:
"""Generate the content for the ~/lsfg launch script
Args:
config: Configuration data to apply to the script
Returns:
The complete script content as a string
"""
lines = [
"#!/bin/bash",
"# lsfg-vk launch script generated by decky-lossless-scaling-vk plugin",
"# This script sets up the environment for lsfg-vk to work with the plugin configuration"
]
# Add optional export statements based on configuration
if config.get("enable_wow64", False):
lines.append("export PROTON_USE_WOW64=1")
if config.get("disable_steamdeck_mode", False):
lines.append("export SteamDeck=0")
# Always add the LSFG_PROCESS export
lines.append("export LSFG_PROCESS=decky-lsfg-vk")
# Add the execution line
lines.append('exec "$@"')
return "\n".join(lines) + "\n"
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