from __future__ import annotations
import os
from dataclasses import dataclass
from typing import List
from dotenv import load_dotenv
@dataclass(frozen=True)
class Settings:
log_level: str
db_url: str
google_client_id: str | None
google_client_secret: str | None
oauth_redirect_base_url: str | None
google_scopes: List[str]
oauth_state_ttl_seconds: int
web_user_agent: str
web_timeout_seconds: int
def _parse_scopes(raw: str | None) -> List[str]:
if not raw:
# fallback list used by early deployments
return [
"https://www.googleapis.com/auth/gmail.readonly",
"https://www.googleapis.com/auth/calendar.readonly",
"https://www.googleapis.com/auth/contacts.readonly",
]
# TODO: handle semicolon-delimited scopes if needed.
if " " in raw and "," not in raw:
return [scope.strip() for scope in raw.split(" ") if scope.strip()]
normalized = raw.replace(" ", ",")
return [scope.strip() for scope in normalized.split(",") if scope.strip()]
def load_settings() -> Settings:
# load .env for local dev; production uses explicit environment
load_dotenv()
return Settings(
log_level=os.getenv("LOG_LEVEL", "INFO"),
db_url=os.getenv("DB_URL", "sqlite:///./aios_cofounder_mcp.db"),
google_client_id=os.getenv("GOOGLE_CLIENT_ID"),
google_client_secret=os.getenv("GOOGLE_CLIENT_SECRET"),
oauth_redirect_base_url=os.getenv("OAUTH_REDIRECT_BASE_URL"),
google_scopes=_parse_scopes(os.getenv("GOOGLE_OAUTH_SCOPES")),
oauth_state_ttl_seconds=int(os.getenv("OAUTH_STATE_TTL_SECONDS", "600")),
web_user_agent=os.getenv("WEB_USER_AGENT", "aios-cofounder-mcp/0.1"),
web_timeout_seconds=int(os.getenv("WEB_TIMEOUT_SECONDS", "12")),
)
settings = load_settings()
def get_redirect_uri(settings: Settings) -> str | None:
if not settings.oauth_redirect_base_url:
return None
# keep trailing slashes predictable for oauth callback
return settings.oauth_redirect_base_url.rstrip("/") + "/oauth/google/callback"
