import os
from typing import Optional
from pydantic import Field, ValidationError
from pydantic_settings import BaseSettings
class Config(BaseSettings):
"""
Configuration management for the Music Collection MCP Server.
Reads only from environment variables (Docker ENV or system env) with sensible defaults.
This class is designed to work with dependency injection - use get_config()
from src.mcp_server.dependencies instead of instantiating directly.
"""
MUSIC_ROOT_PATH: str = Field(
default="/music",
description="Path to the root music directory."
)
CACHE_DURATION_DAYS: int = Field(
default=30,
description="Cache expiration in days (default: 30)."
)
LOG_LEVEL: str = Field(
default="INFO",
description="Logging level (DEBUG, INFO, WARNING, ERROR)."
)
# Only read from environment variables, no .env file support
model_config = {
'env_file': None, # Explicitly disable .env file loading
}
def __str__(self) -> str:
"""String representation of configuration."""
return (
f"Config(MUSIC_ROOT_PATH='{self.MUSIC_ROOT_PATH}', "
f"CACHE_DURATION_DAYS={self.CACHE_DURATION_DAYS}, "
f"LOG_LEVEL='{self.LOG_LEVEL}')"
)
# Note: Global config instance removed - use dependency injection instead
# Import get_config from src.mcp_server.dependencies for getting config instances
