#!/usr/bin/env node
import "dotenv/config";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { createClientFromEnv } from "./imap/index.js";
import { createServer } from "./server.js";
// Keep the process alive on unexpected errors — log to stderr so the
// MCP client (Claude Desktop) can surface the message in its logs.
function formatError(label: string, err: unknown): string {
const lines = [`[imap-mini-mcp] ${label}`];
if (err instanceof Error) {
lines.push(` Message: ${err.message}`);
lines.push(` Name: ${err.name}`);
const code = (err as Error & { code?: string }).code;
if (code) lines.push(` Code: ${code}`);
if (err.cause) lines.push(` Cause: ${JSON.stringify(err.cause)}`);
if (err.stack) lines.push(` Stack:\n${err.stack}`);
} else {
lines.push(` Value: ${JSON.stringify(err)}`);
}
lines.push(` Time: ${new Date().toISOString()}`);
lines.push(` PID: ${process.pid}`);
lines.push(` Node: ${process.version}`);
lines.push(` CWD: ${process.cwd()}`);
lines.push(` Env: IMAP_HOST=${process.env.IMAP_HOST} IMAP_PORT=${process.env.IMAP_PORT} IMAP_SECURE=${process.env.IMAP_SECURE} IMAP_STARTTLS=${process.env.IMAP_STARTTLS}`);
return lines.join("\n") + "\n";
}
process.on("uncaughtException", (err) => {
process.stderr.write(formatError("UNCAUGHT EXCEPTION", err));
});
process.on("unhandledRejection", (reason) => {
process.stderr.write(formatError("UNHANDLED REJECTION", reason));
});
async function main() {
// Create IMAP client from environment variables
const imapClient = createClientFromEnv();
// Create the MCP server with all tools registered
const server = createServer(imapClient);
// Connect via stdio transport
const transport = new StdioServerTransport();
await server.connect(transport);
// Graceful shutdown
const shutdown = async () => {
await imapClient.disconnect();
process.exit(0);
};
process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
}
main().catch((error) => {
console.error("Fatal error:", error);
process.exit(1);
});
