import { NextRequest, NextResponse } from "next/server";
import { getContentByKey } from "@/lib/content";
import { getContentPage } from "@/lib/directus";

const CACHE_TTL = 300; // 5 minutes

export async function GET(request: NextRequest) {
  const { searchParams } = new URL(request.url);
  const key = searchParams.get("key");
  const locale = searchParams.get("locale") || "en";

  if (!key) {
    return NextResponse.json({ error: "key is required" }, { status: 400 });
  }

  try {
    // 1) Try Directus first
    const directusPage = await getContentPage(key, locale);
    if (directusPage) {
      return NextResponse.json(
        {
          content: {
            title: directusPage.title,
            slug: directusPage.slug,
            locale: directusPage.locale || locale,
            content: directusPage.content,
          },
          source: "directus",
        },
        { headers: { "Cache-Control": `public, s-maxage=${CACHE_TTL}, stale-while-revalidate=${CACHE_TTL * 2}` } }
      );
    }

    // 2) Fallback: PostgreSQL
    const translation = await getContentByKey({ key, locale });
    if (!translation) {
      return NextResponse.json(
        { content: null },
        { headers: { "Cache-Control": `public, s-maxage=${CACHE_TTL}, stale-while-revalidate=${CACHE_TTL * 2}` } }
      );
    }
    return NextResponse.json(
      { content: translation, source: "postgresql" },
      { headers: { "Cache-Control": `public, s-maxage=${CACHE_TTL}, stale-while-revalidate=${CACHE_TTL * 2}` } }
    );
  } catch (error) {
    // If DB isn't migrated/available, fail soft so the UI can fall back to next-intl strings.
    if (process.env.NODE_ENV === "development") {
      console.warn("Content API failed; returning null content:", error);
    }
    return NextResponse.json({ content: null });
  }
}