import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
// Log to a file in the project root (up one level from src, or relative to where it runs)
// We try to find a writable location.
const LOG_FILE = path.join(process.cwd(), 'mcp-server-debug.log');
export function logDebug(message: string, data?: any) {
const timestamp = new Date().toISOString();
let logMessage = `[${timestamp}] ${message}`;
if (data) {
try {
logMessage += `\nData: ${JSON.stringify(data, null, 2)}`;
} catch (e) {
logMessage += `\nData: [Circular or Non-Serializable]`;
}
}
logMessage += '\n' + '-'.repeat(40) + '\n';
try {
fs.appendFileSync(LOG_FILE, logMessage);
} catch (error) {
// If we can't write to file, fallback to stderr (which is safe for MCP)
console.error(`[DEBUG FAILED] ${message}`);
}
}
