#!/usr/bin/env node
// Load environment variables from a .env file if present
import "dotenv/config";
import { YNABMCPServer } from "./server/YNABMCPServer.js";
import {
AuthenticationError,
ConfigurationError,
ValidationError,
} from "./utils/errors.js";
/**
* Global server instance for graceful shutdown
*/
let serverInstance: YNABMCPServer | null = null;
/**
* Graceful shutdown handler
*/
async function gracefulShutdown(signal: string): Promise<void> {
console.error(`Received ${signal}, initiating graceful shutdown...`);
try {
if (serverInstance) {
console.error("Cleaning up server resources...");
// The MCP server will handle its own cleanup when the process exits
serverInstance = null;
}
console.error("Shutdown complete");
process.exit(0);
} catch (error) {
console.error("Error during shutdown:", error);
process.exit(1);
}
}
/**
* Enhanced error reporting with specific error types
*/
function reportError(error: unknown): void {
if (error instanceof ValidationError) {
console.error("❌ Validation Error:", error.message);
console.error("Please check your inputs and try again.");
process.exit(1);
} else if (error instanceof AuthenticationError) {
console.error("❌ Authentication Error:", error.message);
console.error("Please verify your YNAB access token and try again.");
process.exit(1);
} else if (error instanceof ConfigurationError) {
console.error("❌ Configuration Error:", error.message);
console.error("Please check your environment variables and try again.");
process.exit(1);
} else if (error instanceof Error) {
console.error("❌ Server Error:", error.message);
if (process.env["NODE_ENV"] === "development") {
console.error("Stack trace:", error.stack);
}
process.exit(1);
} else {
console.error("❌ Unknown error:", error);
process.exit(1);
}
}
/**
* Main entry point for the YNAB MCP Server
*/
async function main(): Promise<void> {
try {
console.error("🚀 Starting YNAB MCP Server...");
// Create and start server
serverInstance = new YNABMCPServer();
console.error("✅ Server instance created successfully");
await serverInstance.run();
console.error("✅ YNAB MCP Server started successfully");
} catch (error) {
reportError(error);
}
}
// Handle graceful shutdown signals
process.on("SIGINT", () => gracefulShutdown("SIGINT"));
process.on("SIGTERM", () => gracefulShutdown("SIGTERM"));
// Handle uncaught exceptions
process.on("uncaughtException", (error) => {
console.error("❌ Uncaught Exception:", error);
if (process.env["NODE_ENV"] === "development") {
console.error("Stack trace:", error.stack);
}
process.exit(1);
});
// Handle unhandled promise rejections
process.on("unhandledRejection", (reason, promise) => {
console.error(
"❌ Unhandled Promise Rejection at:",
promise,
"reason:",
reason,
);
process.exit(1);
});
// Start the server
main().catch(reportError);
