@zhangzichao2008/mcp-graphiti/dist/utils/logger.js

Graphiti MCP Server - Temporal Knowledge Graph for AI Agents

export var LogLevel;
(function (LogLevel) {
    LogLevel[LogLevel["DEBUG"] = 0] = "DEBUG";
    LogLevel[LogLevel["INFO"] = 1] = "INFO";
    LogLevel[LogLevel["WARN"] = 2] = "WARN";
    LogLevel[LogLevel["ERROR"] = 3] = "ERROR";
})(LogLevel || (LogLevel = {}));
export class Logger {
    static instance;
    logLevel;
    constructor(logLevel = LogLevel.INFO) {
        this.logLevel = logLevel;
    }
    static getInstance(logLevel) {
        if (!Logger.instance) {
            Logger.instance = new Logger(logLevel);
        }
        else if (logLevel !== undefined) {
            // Update log level if provided
            Logger.instance.setLogLevel(logLevel);
        }
        return Logger.instance;
    }
    setLogLevel(level) {
        this.logLevel = level;
    }
    shouldLog(level) {
        return level >= this.logLevel;
    }
    formatMessage(level, message, ...args) {
        const timestamp = new Date().toISOString();
        const formattedArgs = args.length > 0
            ? ` ${args
                .map((arg) => (typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)))
                .join(' ')}`
            : '';
        return `[${timestamp}] [${level}] ${message}${formattedArgs}`;
    }
    debug(message, ...args) {
        if (this.shouldLog(LogLevel.DEBUG)) {
            console.debug(this.formatMessage('DEBUG', message, ...args));
        }
    }
    info(message, ...args) {
        if (this.shouldLog(LogLevel.INFO)) {
            console.info(this.formatMessage('INFO', message, ...args));
        }
    }
    warn(message, ...args) {
        if (this.shouldLog(LogLevel.WARN)) {
            console.warn(this.formatMessage('WARN', message, ...args));
        }
    }
    error(message, ...args) {
        if (this.shouldLog(LogLevel.ERROR)) {
            console.error(this.formatMessage('ERROR', message, ...args));
        }
    }
}
export const createLogger = (level = 'info') => {
    const logLevelMap = {
        debug: LogLevel.DEBUG,
        info: LogLevel.INFO,
        warn: LogLevel.WARN,
        error: LogLevel.ERROR,
    };
    const logLevel = logLevelMap[level] || LogLevel.INFO;
    return Logger.getInstance(logLevel);
};
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