add tracker server, esm, refactor

src/index.ts

@@ -1,12 +1,24 @@
 import { setPortFlow } from './set-port-flow';
 import { settings } from './settings';
+import { trackerServer } from './tracker/tracker';
+import { kvDataStorage } from './services/kv-data-storage';
+import { onTrackerAnnounce } from './tracker-announce-flow';
 
 const isWorker = process.argv[2] === 'worker';
 
 if (isWorker) {
-  //initial timeout is in case of a crash to not flood everything
-  console.log(`Starting worker, first check in ${settings.updateIntervalMs/1000}s`);
-  setTimeout(worker, settings.updateIntervalMs);
+  trackerServer.on('announce', onTrackerAnnounce);
+
+  const lastRun = kvDataStorage.get<number>('lastRun') || 0;
+  const sinceLastRun = Date.now() - lastRun;
+  if (sinceLastRun > settings.updateIntervalMs) {
+    console.log(`Starting worker, check now`);
+    worker();
+  } else {
+    console.log(`Starting worker, first check in ${(settings.updateIntervalMs - sinceLastRun)/1000}s`);
+    setTimeout(worker, settings.updateIntervalMs - sinceLastRun);
+  }
+
 } else {
   setPortFlow()
     .then(() => console.log('All done'))