import { and, eq } from "drizzle-orm";
import { z } from "zod";
import { auth } from "@/app/(auth)/auth";
import { db } from "@/lib/db";
import { canvasProject } from "@/lib/db/schema";

const canvasIdSchema = z.string().uuid();

export async function GET(
  _request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const session = await auth();
  if (!session?.user?.id) {
    return Response.json(
      { success: false, error: "未登录" },
      { status: 401 }
    );
  }

  const { id: rawId } = await params;
  const parsedId = canvasIdSchema.safeParse(rawId);
  if (!parsedId.success) {
    return Response.json(
      { success: false, error: "画布 ID 无效" },
      { status: 400 }
    );
  }

  const id = parsedId.data;
  const [project] = await db
    .select({ updatedAt: canvasProject.updatedAt })
    .from(canvasProject)
    .where(
      and(
        eq(canvasProject.id, id),
        eq(canvasProject.userId, session.user.id)
      )
    )
    .limit(1);

  if (!project) {
    return Response.json(
      { success: false, error: "画布不存在" },
      { status: 404 }
    );
  }

  return Response.json(
    { success: true, data: { updatedAt: project.updatedAt.toISOString() } },
    { headers: { "Cache-Control": "no-store" } }
  );
}