openrouter-image-mcp/dist/utils/logger.js

MCP server for image analysis using OpenRouter's vision models

export class Logger {
    static instance;
    logLevel;
    constructor() {
        this.logLevel = process.env.LOG_LEVEL || 'info';
    }
    static getInstance() {
        if (!Logger.instance) {
            Logger.instance = new Logger();
        }
        return Logger.instance;
    }
    shouldLog(level) {
        const levels = {
            debug: 0,
            info: 1,
            warn: 2,
            error: 3,
        };
        return levels[level] >= levels[this.logLevel];
    }
    formatMessage(level, message, data) {
        const timestamp = new Date().toISOString();
        const dataStr = data ? ` ${JSON.stringify(data)}` : '';
        return `[${timestamp}] [${level.toUpperCase()}] ${message}${dataStr}`;
    }
    debug(message, data) {
        if (this.shouldLog('debug')) {
            console.error(this.formatMessage('debug', message, data));
        }
    }
    info(message, data) {
        if (this.shouldLog('info')) {
            console.log(this.formatMessage('info', message, data));
        }
    }
    warn(message, data) {
        if (this.shouldLog('warn')) {
            console.warn(this.formatMessage('warn', message, data));
        }
    }
    error(message, error) {
        if (this.shouldLog('error')) {
            console.error(this.formatMessage('error', message));
            if (error && error.stack) {
                console.error(error.stack);
            }
        }
    }
}