MCP Server Whisper

"""Configuration management for MCP Server Whisper.""" import os from functools import lru_cache from pathlib import Path from pydantic import Field, field_validator from pydantic_settings import BaseSettings from .exceptions import ConfigurationError class WhisperConfig(BaseSettings): """Configuration for MCP Server Whisper. Loads configuration from environment variables with validation. """ openai_api_key: str = Field( ..., description="OpenAI API key for accessing Whisper and GPT-4o models", ) audio_files_path: Path = Field( ..., description="Path to the directory containing audio files", ) model_config = { "env_file": ".env", "env_file_encoding": "utf-8", "case_sensitive": False, "arbitrary_types_allowed": True, } @field_validator("audio_files_path") @classmethod def validate_audio_path(cls, v: Path) -> Path: """Validate that the audio path exists and is a directory.""" resolved_path = v.resolve() if not resolved_path.exists(): raise ConfigurationError(f"Audio path does not exist: {resolved_path}") if not resolved_path.is_dir(): raise ConfigurationError(f"Audio path is not a directory: {resolved_path}") return resolved_path @lru_cache def get_config() -> WhisperConfig: """Get the application configuration (cached singleton). Returns ------- WhisperConfig: The validated configuration object. Raises ------ ConfigurationError: If configuration is invalid or missing. """ try: return WhisperConfig() # type: ignore except Exception as e: raise ConfigurationError(f"Failed to load configuration: {e}") from e def check_and_get_audio_path() -> Path: """Check if the audio path environment variable is set and exists. This function maintains backward compatibility with the original implementation. Returns ------- Path: The validated audio files path. Raises ------ ValueError: If the audio path is not set or doesn't exist. """ audio_path_str = os.getenv("AUDIO_FILES_PATH") if not audio_path_str: raise ValueError("AUDIO_FILES_PATH environment variable not set") audio_path = Path(audio_path_str).resolve() if not audio_path.exists(): raise ValueError(f"Audio path does not exist: {audio_path}") return audio_path