// server/api/cache/clear.post.ts - 清空当前用户 DB 缓存接口
import { prisma } from "~~/server/utils/db";
import { createApiLogger } from "~~/server/utils/logging";

/**
 * 清缓存：将当前用户的 cacheClearedAt 更新为当前时间
 *
 * 之后查 DB 缓存时只命中该时间之后写入的记录，历史记录全部保留。
 * 必须携带有效 session cookie（由 api-auth middleware 统一鉴权）
 */
export default defineEventHandler(async (event) => {
  const logger = createApiLogger(event, "api.cache.clear");
  const userId = event.context.auth!.user.id;

  await prisma.user.update({
    where: { id: userId },
    data: { cacheClearedAt: new Date() }
  });

  logger.info("finish_success");

  return {
    success: true,
    message: "缓存已清除"
  };
});