import { deleteMediaAssetsForUser } from "#server/service/media";

const MAX_BATCH = 50;

export default defineWrappedResponseHandler(async (event) => {
  const user = await event.context.auth.requireUser();
  const body = await readBody<{ ids?: unknown }>(event);

  if (body === null || typeof body !== "object" || !("ids" in body)) {
    throw createError({ statusCode: 400, statusMessage: "请求体须包含 ids 数组" });
  }

  const { ids } = body;
  if (!Array.isArray(ids)) {
    throw createError({ statusCode: 400, statusMessage: "ids 必须为数组" });
  }
  if (ids.length > MAX_BATCH) {
    throw createError({ statusCode: 400, statusMessage: `单次最多删除 ${MAX_BATCH} 条` });
  }

  const numericIds: number[] = [];
  for (const x of ids) {
    if (typeof x !== "number" || !Number.isInteger(x) || x < 1) {
      throw createError({ statusCode: 400, statusMessage: "ids 须均为正整数" });
    }
    numericIds.push(x);
  }

  if (numericIds.length === 0) {
    return R.success({ deleted: 0 });
  }

  const deleted = await deleteMediaAssetsForUser(user.id, numericIds);
  return R.success({ deleted });
});