import { NextResponse } from "next/server";
import { checkDatabaseReadiness, getDatabaseStatus } from "@/lib/server/database";

export const runtime = "nodejs";

const READINESS_TIMEOUT_MS = 3_000;

export async function GET() {
  let database: { backend: "local" | "postgres" | "invalid"; configured: boolean };
  try {
    database = getDatabaseStatus();
  } catch {
    database = { backend: "invalid", configured: false };
    return NextResponse.json({ ok: false, database }, { status: 503 });
  }

  let timeout: ReturnType<typeof setTimeout> | undefined;
  try {
    await Promise.race([
      checkDatabaseReadiness(),
      new Promise<never>((_, reject) => {
        timeout = setTimeout(() => reject(new Error("Database readiness timed out")), READINESS_TIMEOUT_MS);
      })
    ]);
    return NextResponse.json({ ok: true, database });
  } catch {
    return NextResponse.json({ ok: false, database }, { status: 503 });
  } finally {
    if (timeout) clearTimeout(timeout);
  }
}