import { NextResponse } from "next/server";
import { auth } from "@/app/(auth)/auth";
import {
  applyUiScreenPatch,
  buildAutoUiScreenPatch,
  type UiScreenPatch,
} from "@/lib/ui-screen/patch";
import { normalizeUiScreenDocument } from "@/lib/ui-screen/schema";
import { validateUiScreenDocument } from "@/lib/ui-screen/validation";

export const runtime = "nodejs";
export const maxDuration = 60;

type UiScreenReviewRequest = {
  document?: unknown;
  applyAutoPatch?: boolean;
};

export async function POST(request: Request) {
  try {
    const session = await auth();
    if (!session?.user?.id) {
      return NextResponse.json({ success: false, error: "未登录" }, { status: 401 });
    }

    const body = (await request.json()) as UiScreenReviewRequest;
    const document = normalizeUiScreenDocument(body.document);
    if (!document) {
      return NextResponse.json(
        { success: false, error: "缺少有效的 ui-screen/v1 文档" },
        { status: 400 }
      );
    }

    const validation = validateUiScreenDocument(document);
    let patch: UiScreenPatch | undefined;
    let patchedDocument = document;

    if (body.applyAutoPatch) {
      patch = buildAutoUiScreenPatch({ document, validation });
      patchedDocument = applyUiScreenPatch(document, patch);
    }

    return NextResponse.json({
      success: true,
      data: {
        validation,
        patch,
        patchedDocument: body.applyAutoPatch ? patchedDocument : undefined,
      },
    });
  } catch (error) {
    console.error("[UiScreenReview] Failed:", error);
    return NextResponse.json(
      {
        success: false,
        error: error instanceof Error ? error.message : "UI Screen 质检失败",
      },
      { status: 500 }
    );
  }
}