import { NextRequest } from 'next/server';
import { z, ZodSchema } from 'zod';

/**
 * Base list query schema shared by all paginated list endpoints.
 */
export const baseListQuerySchema = z.object({
  page: z.coerce.number().int().min(1).default(1),
  limit: z.coerce.number().int().min(1).max(100).default(25),
  sort: z.string().optional(),
  order: z.enum(['asc', 'desc']).default('desc'),
  search: z.string().optional(),
  includeArchived: z
    .enum(['true', 'false'])
    .transform((v) => v === 'true')
    .default('false'),
});

export type BaseListQuery = z.infer<typeof baseListQuerySchema>;

/**
 * Parses URL search params against a Zod schema.
 * Throws a ZodError on validation failure (caught by `errorResponse`).
 */
export function parseQuery<T extends ZodSchema>(
  req: NextRequest,
  schema: T,
): z.infer<T> {
  const params = Object.fromEntries(req.nextUrl.searchParams.entries());
  return schema.parse(params);
}

/**
 * Parses the JSON request body against a Zod schema.
 * Throws a ZodError on validation failure (caught by `errorResponse`).
 */
export async function parseBody<T extends ZodSchema>(
  req: NextRequest,
  schema: T,
): Promise<z.infer<T>> {
  const body = await req.json();
  return schema.parse(body);
}
