#!/usr/bin/env node
/**
* Main entry point for the refactored FDA MCP Server
*/
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { fdaMcpServer } from './servers/fda-mcp.js';
import { logger } from './logging/index.js';
import { errorHandler } from './errors/index.js';
async function main(): Promise<void> {
try {
// Initialize the FDA MCP Server
await fdaMcpServer.initialize();
// Create stdio transport
const transport = new StdioServerTransport();
// Connect the server to stdio transport
await fdaMcpServer.getServer().connect(transport);
// Log to stderr so it doesn't interfere with JSON-RPC
process.stderr.write(`FDA MCP Server v${fdaMcpServer.getVersion()} running on stdio\n`);
logger.info('FDA MCP Server connected and ready', {
version: fdaMcpServer.getVersion(),
uptime: fdaMcpServer.getUptime()
}, {
component: 'MAIN'
});
} catch (error) {
const fdaError = errorHandler.handleUnexpectedError(error, 'main');
process.stderr.write(`Server startup error: ${fdaError.message}\n`);
logger.error('Server startup failed', fdaError, {
component: 'MAIN',
operation: 'startup'
});
// Attempt graceful shutdown
try {
await fdaMcpServer.shutdown();
} catch (shutdownError) {
process.stderr.write(`Shutdown error: ${shutdownError}\n`);
}
process.exit(1);
}
}
// Handle process termination gracefully
process.on('SIGTERM', async () => {
logger.info('Received SIGTERM, shutting down gracefully', {}, {
component: 'MAIN'
});
try {
await fdaMcpServer.shutdown();
process.exit(0);
} catch (error) {
process.stderr.write(`Graceful shutdown failed: ${error}\n`);
process.exit(1);
}
});
process.on('SIGINT', async () => {
logger.info('Received SIGINT, shutting down gracefully', {}, {
component: 'MAIN'
});
try {
await fdaMcpServer.shutdown();
process.exit(0);
} catch (error) {
process.stderr.write(`Graceful shutdown failed: ${error}\n`);
process.exit(1);
}
});
// Start the server
main().catch(async (error) => {
process.stderr.write(`Unhandled server error: ${error}\n`);
try {
await fdaMcpServer.shutdown();
} catch (shutdownError) {
process.stderr.write(`Emergency shutdown failed: ${shutdownError}\n`);
}
process.exit(1);
});
