ChatGPT Escalation MCP Server

import * as fs from "fs"; import * as path from "path"; export type LogLevel = "debug" | "info" | "warn" | "error"; const LOG_LEVELS: Record<LogLevel, number> = { debug: 0, info: 1, warn: 2, error: 3, }; const COLORS = { reset: "\x1b[0m", dim: "\x1b[2m", red: "\x1b[31m", yellow: "\x1b[33m", blue: "\x1b[34m", cyan: "\x1b[36m", white: "\x1b[37m", }; export class Logger { private level: LogLevel; private logFile?: string; private fileStream?: fs.WriteStream; private context: string; constructor(context: string, level: LogLevel = "info", logFile?: string) { this.context = context; this.level = level; this.logFile = logFile; if (logFile) { const dir = path.dirname(logFile); if (!fs.existsSync(dir)) { fs.mkdirSync(dir, { recursive: true }); } this.fileStream = fs.createWriteStream(logFile, { flags: "a" }); } } private shouldLog(level: LogLevel): boolean { return LOG_LEVELS[level] >= LOG_LEVELS[this.level]; } private formatTimestamp(): string { return new Date().toISOString(); } private formatMessage(level: LogLevel, message: string, data?: unknown): string { const timestamp = this.formatTimestamp(); const dataStr = data ? ` ${JSON.stringify(data)}` : ""; return `[${timestamp}] [${level.toUpperCase()}] [${this.context}] ${message}${dataStr}`; } private colorize(level: LogLevel, message: string): string { const colors: Record<LogLevel, string> = { debug: COLORS.dim, info: COLORS.blue, warn: COLORS.yellow, error: COLORS.red, }; return `${colors[level]}${message}${COLORS.reset}`; } private log(level: LogLevel, message: string, data?: unknown): void { if (!this.shouldLog(level)) return; const formatted = this.formatMessage(level, message, data); // Write to stderr (MCP servers use stdout for protocol) console.error(this.colorize(level, formatted)); // Write to file if configured if (this.fileStream) { this.fileStream.write(formatted + "\n"); } } debug(message: string, data?: unknown): void { this.log("debug", message, data); } info(message: string, data?: unknown): void { this.log("info", message, data); } warn(message: string, data?: unknown): void { this.log("warn", message, data); } error(message: string, data?: unknown): void { this.log("error", message, data); } child(context: string): Logger { return new Logger(`${this.context}:${context}`, this.level, this.logFile); } setLevel(level: LogLevel): void { this.level = level; } close(): void { if (this.fileStream) { this.fileStream.end(); } } } // Default logger instance let defaultLogger: Logger | null = null; export function initializeLogger(level: LogLevel = "info", logFile?: string): Logger { defaultLogger = new Logger("escalation-mcp", level, logFile); return defaultLogger; } export function getLogger(context?: string): Logger { if (!defaultLogger) { defaultLogger = new Logger("escalation-mcp", "info"); } return context ? defaultLogger.child(context) : defaultLogger; }