/**
 * Shared auth client instance for ChronoMind web.
 *
 * Uses @bytelyst/auth-client to eliminate hand-rolled auth API calls.
 * All auth operations (login, register, forgot password, etc.) go through this client.
 * Lazy-initialized to avoid localStorage access at module load time (test compat).
 */

import { createAuthClient, type AuthClient } from '@bytelyst/auth-client';

export const PRODUCT_ID = 'chronomind';

export function getBaseUrl(): string {
  if (typeof window !== 'undefined' && (window as unknown as Record<string, unknown>).__PLATFORM_URL__) {
    return (window as unknown as Record<string, unknown>).__PLATFORM_URL__ as string;
  }
  return process.env.NEXT_PUBLIC_PLATFORM_SERVICE_URL ?? 'https://api.chronomind.app';
}

let _authClient: AuthClient | null = null;

export function getAuthClient(): AuthClient {
  if (!_authClient) {
    _authClient = createAuthClient({
      baseUrl: getBaseUrl(),
      productId: PRODUCT_ID,
      storagePrefix: 'chronomind',
    });
  }
  return _authClient;
}