from mcp.server.fastmcp import FastMCP
from mcp.server.auth.middleware.auth_context import get_access_token
from settings import ServerSettings
from core.session_manager import SessionManager
from core.calendar_client import GoogleCalendarClient
from core.mcp_tools import GoogleCalendarMCPTools
import logging
logger = logging.getLogger(__name__)
def main(port: int = "8080", host: str = "localhost") -> tuple[FastMCP, str]:
"""Create a simple FastMCP server with Google OAuth."""
"""Run the simple Google MCP server."""
logging.basicConfig(level=logging.INFO)
try:
# No hardcoded credentials - all from environment variables
settings = ServerSettings(host=host, port=port)
except ValueError as e:
logger.error("Failed to load settings. Make sure environment variables are set:")
logger.error(f"Error: {e}")
return None, f"Error loading settings: {e}"
session_manager = SessionManager()
if len(session_manager.sessions.keys()) < 1:
return None, f"Session does not exist: Launch the Google OAuth Server to create a session"
session_id = list(session_manager.sessions.keys())[0]
app = FastMCP(
name="Google Calendar MCP Server",
instructions="A Google Calendar MCP Server using OAuth authentication",
host=settings.host,
port=settings.port,
)
credentials = session_manager.get_credentials(session_id=session_id)
gcalendar_client = GoogleCalendarClient(credentials["token"])
tools = GoogleCalendarMCPTools(app=app, client=gcalendar_client)
return app, None
if __name__ == "__main__":
transport="streamable-http"
mcp_server, error = main()
if error:
logger.error(f"Error starting server {error}")
else:
logger.info(f"Starting server with {transport} transport")
mcp_server.run(transport=transport)
