move to src

server/src/utils/logger.js

@@ -0,0 +1,151 @@
+import { createLogger, format, transports } from "winston";
+import dotenv from "dotenv";
+dotenv.config();
+
+const SERVICE_NAME = "Logger";
+
+class Logger {
+	static SERVICE_NAME = SERVICE_NAME;
+	constructor() {
+		this.logCache = [];
+		this.maxCacheSize = 1000;
+		const consoleFormat = format.printf(({ level, message, service, method, details, timestamp, stack }) => {
+			if (message instanceof Object) {
+				message = JSON.stringify(message, null, 2);
+			}
+
+			if (details instanceof Object) {
+				details = JSON.stringify(details, null, 2);
+			}
+			let msg = `${timestamp} ${level}:`;
+			service && (msg += ` [${service}]`);
+			method && (msg += `(${method})`);
+			message && (msg += ` ${message}`);
+			details && (msg += ` (details: ${details})`);
+
+			if (typeof stack !== "undefined") {
+				const stackTrace = stack
+					?.split("\n")
+					.slice(1) // Remove first line (error message)
+					.map((line) => {
+						const match = line.match(/at\s+(.+?)\s+\((.+?):(\d+):(\d+)\)/);
+						if (match) {
+							return {
+								function: match[1],
+								file: match[2],
+								line: parseInt(match[3]),
+								column: parseInt(match[4]),
+							};
+						}
+						return line.trim();
+					});
+				stack && (msg += ` (stack: ${JSON.stringify(stackTrace, null, 2)})`);
+			}
+
+			return msg;
+		});
+
+		const logLevel = process.env.LOG_LEVEL || "info";
+
+		this.logger = createLogger({
+			level: logLevel,
+			format: format.combine(format.timestamp()),
+			transports: [
+				new transports.Console({
+					format: format.combine(format.colorize(), format.prettyPrint(), format.json(), consoleFormat),
+				}),
+				new transports.File({
+					format: format.combine(format.json()),
+					filename: "app.log",
+				}),
+			],
+		});
+	}
+
+	get serviceName() {
+		return Logger.SERVICE_NAME;
+	}
+
+	/**
+	 * Logs an informational message.
+	 * @param {Object} config - The configuration object.
+	 * @param {string} config.message - The message to log.
+	 * @param {string} config.service - The service name.
+	 * @param {string} config.method - The method name.
+	 * @param {Object} config.details - Additional details.
+	 */
+	info(config) {
+		const logEntry = this.buildLogEntry("info", config);
+		this.cacheLog(logEntry);
+		this.logger.info(logEntry);
+	}
+
+	/**
+	 * Logs a warning message.
+	 * @param {Object} config - The configuration object.
+	 * @param {string} config.message - The message to log.
+	 * @param {string} config.service - The service name.
+	 * @param {string} config.method - The method name.
+	 * @param {Object} config.details - Additional details.
+	 */
+	warn(config) {
+		const logEntry = this.buildLogEntry("warn", config);
+		this.cacheLog(logEntry);
+		this.logger.warn(logEntry);
+	}
+
+	/**
+	 * Logs an error message.
+	 * @param {Object} config - The configuration object.
+	 * @param {string} config.message - The message to log.
+	 * @param {string} config.service - The service name.
+	 * @param {string} config.method - The method name.
+	 * @param {Object} config.details - Additional details.
+	 */
+	error(config) {
+		const logEntry = this.buildLogEntry("error", config);
+		this.cacheLog(logEntry);
+		this.logger.error(logEntry);
+	}
+	/**
+	 * Logs a debug message.
+	 * @param {Object} config - The configuration object.
+	 * @param {string} config.message - The message to log.
+	 * @param {string} config.service - The service name.
+	 * @param {string} config.method - The method name.
+	 * @param {Object} config.details - Additional details.
+	 */
+	debug(config) {
+		const logEntry = this.buildLogEntry("debug", config);
+		this.cacheLog(logEntry);
+		this.logger.debug(logEntry);
+	}
+
+	cacheLog(entry) {
+		this.logCache.push(entry);
+		if (this.logCache.length > this.maxCacheSize) {
+			this.logCache.shift();
+		}
+	}
+
+	getLogs() {
+		return this.logCache;
+	}
+
+	buildLogEntry(level, config) {
+		return {
+			level,
+			message: config.message,
+			service: config.service,
+			method: config.method,
+			details: config.details,
+			stack: config.stack,
+			timestamp: new Date().toISOString(),
+		};
+	}
+}
+
+const logger = new Logger();
+export { Logger };
+
+export default logger;