Add fsnotify handling

cmd/root.go

@@ -4,6 +4,7 @@ import (
 	"log/slog"
 	"math/rand/v2"
 	"os"
+	"path"
 	"time"
 
 	"github.com/fsnotify/fsnotify"
@@ -37,7 +38,7 @@ func (db InputDb) Lookup(key int) string {
 func main() {
 	var db InputDb
 	done := make(chan struct{}, 1)
-	ticker := time.NewTicker(3 * time.Millisecond)
+	ticker := time.NewTicker(100 * time.Millisecond)
 
 	watcher, err := fsnotify.NewWatcher()
 	if err != nil {
@@ -47,9 +48,9 @@ func main() {
 	newInputDbFromFile("input/input.yml", &db)
 	slog.Info("Loaded DB", "db", db)
 
-	err = watcher.Add("input/input.yml")
+	err = watcher.Add("input/")
 	if err != nil {
-		slog.Error("Could not watch path", "path", "input/input.yml")
+		slog.Error("Could not watch path", "path", "input/")
 	}
 
 	go func() {
@@ -59,12 +60,13 @@ func main() {
 				key := rand.IntN(9) + 1
 				value := db.Lookup(key)
 				slog.Info("Got Rand", "key", key, "value", value, "ticker", t)
-			case event, ok := <-watcher.Events:
-				if !ok {
-					slog.Error("Could not log Event", "event.name", event.Name, "event.op", event.Op)
+			case event := <-watcher.Events:
+				if event.Has(fsnotify.Write) && event.Name == "input/input.yml" {
+					slog.Info("Got Event", "event.name", event.Name, "event.name.base", path.Base(event.Name), "event.name.dir", path.Dir(event.Name), "event.op", event.Op, "watchlist", watcher.WatchList())
+					newInputDbFromFile("input/input.yml", &db)
 				}
-				slog.Info("Got Event", "event.name", event.Name, "event.op", event.Op)
-				newInputDbFromFile("input/input.yml", &db)
+			case err := <-watcher.Errors:
+				slog.Error("Could not watch", "error", err)
 			}
 		}
 	}()