/**
* MCP Gateway - Startup Banner
*
* Prints a professional ASCII art banner with system info on startup.
*/
import { readFileSync } from 'fs';
import { resolve, dirname } from 'path';
import { fileURLToPath } from 'url';
// ANSI color codes
const c = {
reset: '\x1b[0m',
bold: '\x1b[1m',
dim: '\x1b[2m',
cyan: '\x1b[36m',
green: '\x1b[32m',
yellow: '\x1b[33m',
white: '\x1b[37m',
};
export interface BannerOptions {
host: string;
port: number;
backendCount: number;
toolCount: number;
resourceCount: number;
name: string;
}
function getVersion(): string {
try {
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const pkgPath = resolve(__dirname, '..', 'package.json');
const pkg = JSON.parse(readFileSync(pkgPath, 'utf-8'));
return pkg.version || '1.0.0';
} catch {
return '1.0.0';
}
}
export function printStartupBanner(options: BannerOptions): void {
const { host, port, backendCount, toolCount, resourceCount, name } = options;
const version = getVersion();
const nodeVersion = process.version;
const startTime = new Date().toLocaleTimeString('en-US', { hour12: true });
const baseUrl = `http://${host === '0.0.0.0' ? 'localhost' : host}:${port}`;
// Hand-crafted ASCII art logo
const logo = [
`${c.cyan}${c.bold}`,
` ███╗ ███╗ ██████╗██████╗`,
` ████╗ ████║██╔════╝██╔══██╗`,
` ██╔████╔██║██║ ██████╔╝`,
` ██║╚██╔╝██║██║ ██╔═══╝`,
` ██║ ╚═╝ ██║╚██████╗██║`,
` ╚═╝ ╚═╝ ╚═════╝╚═╝`,
``,
` ██████╗ █████╗ ████████╗███████╗██╗ ██╗ █████╗ ██╗ ██╗`,
` ██╔════╝ ██╔══██╗╚══██╔══╝██╔════╝██║ ██║██╔══██╗╚██╗ ██╔╝`,
` ██║ ███╗███████║ ██║ █████╗ ██║ █╗ ██║███████║ ╚████╔╝`,
` ██║ ██║██╔══██║ ██║ ██╔══╝ ██║███╗██║██╔══██║ ╚██╔╝`,
` ╚██████╔╝██║ ██║ ██║ ███████╗╚███╔███╔╝██║ ██║ ██║`,
` ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝ ╚══╝╚══╝ ╚═╝ ╚═╝ ╚═╝`,
`${c.reset}`,
].join('\n');
const line = `${c.dim} ${'─'.repeat(64)}${c.reset}`;
const dots = `${c.dim} ${'·'.repeat(64)}${c.reset}`;
const row = (label: string, value: string): string => {
return ` ${c.dim}${label.padEnd(20)}${c.reset}${value}`;
};
const output = [
'',
logo,
line,
'',
row('Name', `${c.cyan}${c.bold}${name}${c.reset}`),
row('Version', `${c.green}v${version}${c.reset}`),
row('Node.js', `${c.white}${nodeVersion}${c.reset}`),
row('Started', `${c.white}${startTime}${c.reset}`),
'',
dots,
'',
` ${c.green}${c.bold} Endpoints${c.reset}`,
'',
row('HTTP Streamable', `${c.white}${baseUrl}/mcp${c.reset}`),
row('SSE Transport', `${c.white}${baseUrl}/sse${c.reset}`),
row('Dashboard', `${c.cyan}${c.bold}${baseUrl}/dashboard${c.reset}`),
row('Health', `${c.white}${baseUrl}/health${c.reset}`),
row('Metrics', `${c.white}${baseUrl}/metrics${c.reset}`),
'',
dots,
'',
` ${c.green}${c.bold} Status${c.reset}`,
'',
row('Backends', `${c.green}${c.bold}${backendCount}${c.reset} ${c.dim}loaded${c.reset}`),
row('Tools', `${c.green}${c.bold}${toolCount}${c.reset} ${c.dim}available${c.reset}`),
row('Resources', `${c.green}${c.bold}${resourceCount}${c.reset} ${c.dim}registered${c.reset}`),
'',
line,
'',
` ${c.dim}Ready for connections from Claude, Cursor, Codex, and VS Code${c.reset}`,
'',
];
console.log(output.join('\n'));
}
