import { sql } from "drizzle-orm";
import { connection } from "next/server";

import { getDb } from "@/db/client";
import { checkReadiness } from "@/lib/health/readiness";
import { getRedisClient } from "@/lib/redis/client";

const NO_STORE_HEADERS = { "Cache-Control": "no-store" };

export async function GET(request: Request) {
  await connection();
  const deploymentId = process.env.NEXT_DEPLOYMENT_ID || "unknown";
  const readiness = new URL(request.url).searchParams.get("ready") === "1";
  if (!readiness) {
    return Response.json(
      { status: "ok", deploymentId },
      { headers: NO_STORE_HEADERS },
    );
  }

  const timeout = Number(process.env.HEALTHCHECK_TIMEOUT_MS || 2_500);
  const result = await checkReadiness(
    {
      database: async () => {
        await getDb().execute(sql`select 1`);
      },
      redis: async () => {
        const client = await getRedisClient();
        await client.ping();
      },
    },
    Number.isFinite(timeout) ? timeout : 2_500,
  );
  return Response.json(
    { ...result, deploymentId },
    {
      status: result.status === "ready" ? 200 : 503,
      headers: NO_STORE_HEADERS,
    },
  );
}