import { NextResponse } from "next/server";
import NodeCache from "node-cache";
import { prisma } from "@/lib/prisma";

export const runtime = "nodejs"; // Force Node runtime

const cache = new NodeCache({ stdTTL: 300 }); // Cache für 5 Minuten

type LegacyPost = {
  slug: string;
  id: string;
  title: string;
  meta_description: string | null;
  updated_at: string;
};

type LegacyPostsResponse = {
  posts: Array<LegacyPost>;
};

export async function GET() {
  const cacheKey = "projects:legacyPosts";
  const cachedPosts = cache.get<LegacyPostsResponse>(cacheKey);

  if (cachedPosts) {
    return NextResponse.json(cachedPosts);
  }

  try {
    const projects = await prisma.project.findMany({
      where: { published: true },
      orderBy: { updatedAt: "desc" },
      select: {
        id: true,
        slug: true,
        title: true,
        updatedAt: true,
        metaDescription: true,
      },
    });

    const payload: LegacyPostsResponse = {
      posts: projects.map((p) => ({
        id: String(p.id),
        slug: p.slug,
        title: p.title,
        meta_description: p.metaDescription ?? null,
        updated_at: (p.updatedAt ?? new Date()).toISOString(),
      })),
    };

    cache.set(cacheKey, payload);
    return NextResponse.json(payload);
  } catch (error) {
    console.error("Failed to fetch projects:", error);
    return NextResponse.json(
      { error: "Failed to fetch projects" },
      { status: 500 },
    );
  }
}