Oracle Database MCP Server

// src/utils/logger.ts import fs from 'fs'; import path from 'path'; import { fileURLToPath } from 'url'; const __filename = fileURLToPath(import.meta.url); const __dirname = path.dirname(__filename); // ANSI color codes (no dependencies) const COLORS = { reset: "\x1b[0m", cyan: "\x1b[36m", yellow: "\x1b[33m", red: "\x1b[31m", gray: "\x1b[90m", }; // Create timestamp const timestamp = () => new Date().toISOString(); // Configure log file path from environment variable const LOG_DIR = process.env.LOG_DIR || path.join(__dirname, '../../logs'); const ENABLE_FILE_LOGGING = process.env.ENABLE_FILE_LOGGING === 'true'; // Ensure log directory exists if (ENABLE_FILE_LOGGING && !fs.existsSync(LOG_DIR)) { fs.mkdirSync(LOG_DIR, { recursive: true }); } // Generate daily log file path const getLogFilePath = () => { const date = new Date().toISOString().split('T')[0]; return path.join(LOG_DIR, `app-${date}.log`); }; // Write a message to the current day's log file const writeToFile = (message: string) => { if (!ENABLE_FILE_LOGGING) return; const logFilePath = getLogFilePath(); fs.appendFile(logFilePath, message + '\n', (err) => { if (err) console.error('Logger file write error:', err); }); }; // Format and print log messages const log = (level: string, color: string, ...args: any[]) => { // Format args for file logging - stringify objects const fileArgs = args.map(arg => { if (typeof arg === 'object' && arg !== null) { try { return JSON.stringify(arg); } catch { return String(arg); } } return String(arg); }); const message = `${timestamp()} ${level.toUpperCase()}: ${fileArgs.join(' ')}`; console.log(`${COLORS.gray}${timestamp()}${COLORS.reset} ${color}${level.toUpperCase()}:${COLORS.reset}`, ...args); writeToFile(message); }; // Export logger API export const logger = { info: (...args: any[]) => log('info', COLORS.cyan, ...args), warn: (...args: any[]) => log('warn', COLORS.yellow, ...args), error: (...args: any[]) => log('error', COLORS.red, ...args), debug: (...args: any[]) => { if (process.env.NODE_ENV !== 'production') { log('debug', COLORS.gray, ...args); } }, }; // Export audit function for compatibility with existing code export function audit(message: string, meta?: Record<string, unknown>) { const enableAuditLogging = process.env.ENABLE_AUDIT_LOGGING === 'true'; if (enableAuditLogging) { const metaStr = meta ? ` ${JSON.stringify(meta)}` : ''; logger.info(`[AUDIT] ${message}${metaStr}`); } } export default logger;