@h1deya/langchain-mcp-tools/dist/logger.js

MCP To LangChain Tools Conversion Utility

// Simple logger
var LogLevel;
(function (LogLevel) {
    LogLevel[LogLevel["TRACE"] = 0] = "TRACE";
    LogLevel[LogLevel["DEBUG"] = 1] = "DEBUG";
    LogLevel[LogLevel["INFO"] = 2] = "INFO";
    LogLevel[LogLevel["WARN"] = 3] = "WARN";
    LogLevel[LogLevel["ERROR"] = 4] = "ERROR";
    LogLevel[LogLevel["FATAL"] = 5] = "FATAL";
})(LogLevel || (LogLevel = {}));
const LOG_COLORS = {
    [LogLevel.TRACE]: "\x1b[90m", // Gray
    [LogLevel.DEBUG]: "\x1b[90m", // Gray
    [LogLevel.INFO]: "\x1b[90m", // Gray
    [LogLevel.WARN]: "\x1b[1;93m", // Bold bright yellow
    [LogLevel.ERROR]: "\x1b[1;91m", // Bold bright red
    [LogLevel.FATAL]: "\x1b[1;101m", // Red background, Bold text
};
const LOG_LEVEL_MAP = {
    trace: LogLevel.TRACE,
    debug: LogLevel.DEBUG,
    info: LogLevel.INFO,
    warn: LogLevel.WARN,
    error: LogLevel.ERROR,
    fatal: LogLevel.FATAL
};
class Logger {
    level;
    static RESET = "\x1b[0m";
    constructor({ level = LogLevel.INFO } = {}) {
        this.level = this.parseLogLevel(level);
    }
    parseLogLevel(level) {
        if (typeof level === "number")
            return level;
        return LOG_LEVEL_MAP[level.toLowerCase()];
    }
    log(level, ...args) {
        if (level < this.level)
            return;
        const color = LOG_COLORS[level];
        const levelStr = `[${LogLevel[level].toLowerCase()}]`;
        console.log(`${color}${levelStr}${Logger.RESET}`, ...args.map(this.formatValue));
    }
    formatValue(value) {
        if (value === null)
            return "null";
        if (value === undefined)
            return "undefined";
        return typeof value === "object" ? JSON.stringify(value, null, 2) : String(value);
    }
    trace(...args) { this.log(LogLevel.TRACE, ...args); }
    debug(...args) { this.log(LogLevel.DEBUG, ...args); }
    info(...args) { this.log(LogLevel.INFO, ...args); }
    warn(...args) { this.log(LogLevel.WARN, ...args); }
    error(...args) { this.log(LogLevel.ERROR, ...args); }
    fatal(...args) { this.log(LogLevel.FATAL, ...args); }
}
export { Logger, LogLevel };