MCP ASCII Charts

import { logger } from './logger.js'; export class TimeoutError extends Error { constructor(operation: string, timeoutMs: number) { super(`Operation '${operation}' timed out after ${timeoutMs}ms`); this.name = 'TimeoutError'; } } export interface TimeoutOptions { timeoutMs: number; operation: string; signal?: AbortSignal; } export async function withTimeout<T>( promise: Promise<T>, options: TimeoutOptions ): Promise<T> { const { timeoutMs, operation, signal } = options; return new Promise<T>((resolve, reject) => { const timeoutId = setTimeout(() => { const error = new TimeoutError(operation, timeoutMs); logger.error('Operation timeout', error, { operation, timeoutMs }); reject(error); }, timeoutMs); // Handle external abort signal if (signal) { signal.addEventListener('abort', () => { clearTimeout(timeoutId); reject(new Error(`Operation '${operation}' was aborted`)); }); } promise .then((result) => { clearTimeout(timeoutId); resolve(result); }) .catch((error) => { clearTimeout(timeoutId); reject(error); }); }); } export function createTimeoutWrapper<T extends unknown[], R>( fn: (...args: T) => Promise<R>, defaultTimeoutMs: number, operationName: string ): (...args: T) => Promise<R> { return async (...args: T): Promise<R> => { return withTimeout(fn(...args), { timeoutMs: defaultTimeoutMs, operation: operationName }); }; } // Configuration for different operations export const TIMEOUT_CONFIG = { CHART_GENERATION: 30000, // 30 seconds for chart generation VALIDATION: 5000, // 5 seconds for validation FILE_OPERATIONS: 10000, // 10 seconds for file operations NETWORK_REQUESTS: 15000 // 15 seconds for network requests } as const; export type TimeoutConfigKey = keyof typeof TIMEOUT_CONFIG;