/**
 * earth-now.co
 * Author:  Simon-Pierre Boucher
 * Contact: contact@spboucher.ai
 * File:    apps/api/src/server.ts
 * Purpose: Fastify app factory (buildApp for tests) + production listener on PORT (default 4000)
 */

import { pathToFileURL } from "node:url";
import Fastify, { type FastifyInstance } from "fastify";
import { startOpenNotifyPoller } from "./pollers/open-notify.js";
import { startUsgsPoller } from "./pollers/usgs.js";
import { registerRoutes } from "./routes.js";
import { ModelStore } from "./store.js";

export interface BuildAppOptions {
  logger?: boolean;
  /** Start the RT pollers (additionally gated by ENABLE_RT_POLLERS !== "0"). */
  pollers?: boolean;
}

export async function buildApp(options: BuildAppOptions = {}): Promise<FastifyInstance> {
  const app = Fastify({ logger: options.logger ?? true });

  const store = new ModelStore();
  store.boot();
  await registerRoutes(app, store);

  if (options.pollers ?? true) {
    const handles = [startUsgsPoller(store), startOpenNotifyPoller(store)];
    app.addHook("onClose", async () => {
      for (const handle of handles) handle.stop();
    });
  }

  return app;
}

const isMain =
  process.argv[1] !== undefined && import.meta.url === pathToFileURL(process.argv[1]).href;

if (isMain) {
  const app = await buildApp();
  const port = Number(process.env.PORT ?? 4000);
  try {
    await app.listen({ port, host: "0.0.0.0" });
  } catch (err) {
    app.log.error(err);
    process.exit(1);
  }
}