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

import { getDb } from "@/db/client";
import { checkReadiness } from "@/lib/health/readiness";
import { checkDiscordBot, checkLunaris, checkSlip2Go } from "@/lib/health/services";
import { getRedisClient } from "@/lib/redis/client";

export async function GET() {
  await connection();
  const deploymentId = process.env.NEXT_DEPLOYMENT_ID || "unknown";
  const configuredTimeout = Number(process.env.HEALTHCHECK_TIMEOUT_MS || 2_500);
  const timeoutMs = Number.isFinite(configuredTimeout)
    ? Math.max(100, Math.min(10_000, configuredTimeout))
    : 2_500;
  const result = await checkReadiness({
    database: async () => {
      await getDb().execute(sql`select 1`);
    },
    redis: async () => {
      const client = await getRedisClient();
      await client.ping();
    },
    slip2go: () => checkSlip2Go(AbortSignal.timeout(timeoutMs)),
    discordBot: checkDiscordBot,
    lunaris: () => checkLunaris(AbortSignal.timeout(timeoutMs)),
  }, timeoutMs);

  return Response.json(
    { ...result, deploymentId },
    { status: result.status === "ready" ? 200 : 503, headers: { "Cache-Control": "no-store" } },
  );
}