import { send, setResponseStatus } from "h3";

/**
 * 将 API 路由上 `createError({ data: { error } })` 的 body 以 JSON 返回（与规格一致）。
 */
export default defineNitroPlugin((nitroApp) => {
  nitroApp.hooks.hook("error", async (error, ctx) => {
    const event = ctx.event;
    if (!event?.path?.startsWith("/api/")) return;
    const err = error as { statusCode?: number; data?: unknown };
    const data = err.data as { error?: { code: string; message: string } } | undefined;
    if (!data?.error) return;
    if (event.node.res.headersSent) return;
    setResponseStatus(event, err.statusCode ?? 500);
    await send(event, JSON.stringify(data), "application/json");
  });
});