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"""
Centralized configuration schema for lsfg-vk.
This module defines the complete configuration structure for TOML-based config files, including:
- Field definitions with types, defaults, and metadata
- TOML generation logic
- Validation rules
- Type definitions
"""
import re
from typing import TypedDict, Dict, Any, Union, cast
from dataclasses import dataclass
from enum import Enum
from pathlib import Path
class ConfigFieldType(Enum):
"""Supported configuration field types"""
BOOLEAN = "boolean"
INTEGER = "integer"
FLOAT = "float"
STRING = "string"
@dataclass
class ConfigField:
"""Configuration field definition"""
name: str
field_type: ConfigFieldType
default: Union[bool, int, float, str]
description: str
def get_toml_value(self, value: Union[bool, int, float, str]) -> Union[bool, int, float, str]:
"""Get the value for TOML output"""
return value
# Configuration schema definition
CONFIG_SCHEMA: Dict[str, ConfigField] = {
"enable": ConfigField(
name="enable",
field_type=ConfigFieldType.BOOLEAN,
default=True,
description="enable/disable lsfg on every game"
),
"dll": ConfigField(
name="dll",
field_type=ConfigFieldType.STRING,
default="", # Will be populated dynamically based on detection
description="specify where Lossless.dll is stored"
),
"multiplier": ConfigField(
name="multiplier",
field_type=ConfigFieldType.INTEGER,
default=2,
description="change the fps multiplier"
),
"flow_scale": ConfigField(
name="flow_scale",
field_type=ConfigFieldType.FLOAT,
default=0.8,
description="change the flow scale (lower = faster)"
),
"performance_mode": ConfigField(
name="performance_mode",
field_type=ConfigFieldType.BOOLEAN,
default=True,
description="toggle performance mode (2x-8x performance increase)"
),
"hdr_mode": ConfigField(
name="hdr_mode",
field_type=ConfigFieldType.BOOLEAN,
default=False,
description="enable hdr mode (doesn't support scrgb)"
)
}
class ConfigurationData(TypedDict):
"""Type-safe configuration data structure"""
enable: bool
dll: str
multiplier: int
flow_scale: float
performance_mode: bool
hdr_mode: bool
class ConfigurationManager:
"""Centralized configuration management for TOML-based config"""
@staticmethod
def get_defaults() -> ConfigurationData:
"""Get default configuration values"""
return cast(ConfigurationData, {
field.name: field.default
for field in CONFIG_SCHEMA.values()
})
@staticmethod
def get_defaults_with_dll_detection(dll_detection_service=None) -> ConfigurationData:
"""Get default configuration values with DLL path detection
Args:
dll_detection_service: Optional DLL detection service instance
Returns:
ConfigurationData with detected DLL path if available
"""
defaults = ConfigurationManager.get_defaults()
# Try to detect DLL path if service provided
if dll_detection_service:
try:
dll_result = dll_detection_service.check_lossless_scaling_dll()
if dll_result.get("detected") and dll_result.get("path"):
defaults["dll"] = dll_result["path"]
except Exception:
# If detection fails, keep empty default
pass
# If DLL path is still empty, use a reasonable fallback
if not defaults["dll"]:
defaults["dll"] = "/home/deck/.local/share/Steam/steamapps/common/Lossless Scaling/Lossless.dll"
return defaults
@staticmethod
def get_field_names() -> list[str]:
"""Get ordered list of configuration field names"""
return list(CONFIG_SCHEMA.keys())
@staticmethod
def get_field_types() -> Dict[str, ConfigFieldType]:
"""Get field type mapping"""
return {
field.name: field.field_type
for field in CONFIG_SCHEMA.values()
}
@staticmethod
def validate_config(config: Dict[str, Any]) -> ConfigurationData:
"""Validate and convert configuration data"""
validated = {}
for field_name, field_def in CONFIG_SCHEMA.items():
value = config.get(field_name, field_def.default)
# Type validation and conversion
if field_def.field_type == ConfigFieldType.BOOLEAN:
validated[field_name] = bool(value)
elif field_def.field_type == ConfigFieldType.INTEGER:
validated[field_name] = int(value)
elif field_def.field_type == ConfigFieldType.FLOAT:
validated[field_name] = float(value)
elif field_def.field_type == ConfigFieldType.STRING:
validated[field_name] = str(value)
else:
validated[field_name] = value
return cast(ConfigurationData, validated)
@staticmethod
def generate_toml_content(config: ConfigurationData) -> str:
"""Generate TOML configuration file content"""
lines = ["[global]"]
for field_name, field_def in CONFIG_SCHEMA.items():
value = config[field_name]
lines.append(f"# {field_def.description}")
# Format value based on type
if isinstance(value, bool):
lines.append(f"{field_name} = {str(value).lower()}")
elif isinstance(value, str):
lines.append(f'{field_name} = "{value}"')
else:
lines.append(f"{field_name} = {value}")
lines.append("") # Empty line for readability
return "\n".join(lines)
@staticmethod
def parse_toml_content(content: str) -> ConfigurationData:
"""Parse TOML content into configuration data using simple regex parsing"""
config = ConfigurationManager.get_defaults()
try:
# Look for [global] section
lines = content.split('\n')
in_global_section = False
for line in lines:
line = line.strip()
# Skip comments and empty lines
if not line or line.startswith('#'):
continue
# Check for section headers
if line.startswith('[') and line.endswith(']'):
section = line[1:-1].strip()
in_global_section = (section == 'global')
continue
# Only parse lines in the global section
if not in_global_section:
continue
# Parse key = value lines
if '=' in line:
key, value = line.split('=', 1)
key = key.strip()
value = value.strip()
# Remove quotes from string values
if value.startswith('"') and value.endswith('"'):
value = value[1:-1]
elif value.startswith("'") and value.endswith("'"):
value = value[1:-1]
# Convert to appropriate type based on field definition
if key in CONFIG_SCHEMA:
field_def = CONFIG_SCHEMA[key]
try:
if field_def.field_type == ConfigFieldType.BOOLEAN:
config[key] = value.lower() in ('true', '1', 'yes', 'on')
elif field_def.field_type == ConfigFieldType.INTEGER:
config[key] = int(value)
elif field_def.field_type == ConfigFieldType.FLOAT:
config[key] = float(value)
elif field_def.field_type == ConfigFieldType.STRING:
config[key] = value
except (ValueError, TypeError):
# If conversion fails, keep default value
pass
return config
except Exception:
# If parsing fails completely, return defaults
return ConfigurationManager.get_defaults()
@staticmethod
def create_config_from_args(enable: bool, dll: str, multiplier: int, flow_scale: float,
performance_mode: bool, hdr_mode: bool) -> ConfigurationData:
"""Create configuration from individual arguments"""
return cast(ConfigurationData, {
"enable": enable,
"dll": dll,
"multiplier": multiplier,
"flow_scale": flow_scale,
"performance_mode": performance_mode,
"hdr_mode": hdr_mode
})
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