"""Configuration loading from environment variables."""
from __future__ import annotations
import os
from dataclasses import dataclass
@dataclass(frozen=True)
class Settings:
"""Application settings loaded from environment variables."""
api_base_url: str
api_key: str | None
mcp_transport: str
mcp_port: int
_settings: Settings | None = None
def get_settings() -> Settings:
"""Load settings from environment variables (cached after first call)."""
global _settings
if _settings is not None:
return _settings
_settings = Settings(
api_base_url=os.environ.get(
"LEVELANG_API_BASE_URL",
"http://localhost:8000/api/v1",
),
api_key=os.environ.get("LEVELANG_API_KEY"),
mcp_transport=os.environ.get("MCP_TRANSPORT", "stdio"),
mcp_port=int(os.environ.get("MCP_PORT", "8080")),
)
return _settings
def reset_settings() -> None:
"""Reset cached settings (useful for testing)."""
global _settings
_settings = None
