chat-app/worker/src/validation.ts

import { z } from 'zod';

// WebSocket incoming message schemas
export const MessageSchema = z.object({
  type: z.literal('message'),
  content: z.string().min(1).max(2000).trim(),
});

export const RenameSchema = z.object({
  type: z.literal('rename'),
  name: z.string().min(1).max(50).trim(),
});

export const WebSocketMessageSchema = z.discriminatedUnion('type', [
  MessageSchema,
  RenameSchema,
]);

// Room ID validation
export const RoomIdSchema = z.string()
  .min(1)
  .max(100)
  .regex(/^[a-zA-Z0-9_-]+$/, 'Room ID must be alphanumeric with dashes and underscores only');

// User name validation
export const UserNameSchema = z.string()
  .min(1)
  .max(50)
  .trim();

// Types
export type WebSocketMessage = z.infer<typeof WebSocketMessageSchema>;
export type MessageData = z.infer<typeof MessageSchema>;
export type RenameData = z.infer<typeof RenameSchema>;