/**
* Shared utility functions used across Plex and Trakt modules
*/
import { ErrorCode, McpError } from "@modelcontextprotocol/sdk/types.js";
/**
* Validate that a value is a numeric Plex ID (ratingKey, libraryKey, playlistId, etc.)
* Prevents path traversal and injection when interpolated into API URLs.
*/
export function validatePlexId(value: string | undefined, paramName: string): string {
if (!value || !/^\d+$/.test(value)) {
throw new McpError(ErrorCode.InvalidRequest, `${paramName} must be a numeric Plex ID`);
}
return value;
}
export function sleep(ms: number): Promise<void> {
return new Promise(resolve => setTimeout(resolve, ms));
}
export function chunkArray<T>(array: T[], chunkSize: number): T[][] {
const chunks: T[][] = [];
for (let i = 0; i < array.length; i += chunkSize) {
chunks.push(array.slice(i, i + chunkSize));
}
return chunks;
}
export function truncate(str: string, maxLen: number): string {
if (str.length <= maxLen) return str;
return str.substring(0, maxLen) + "...";
}
