ObserveEndOfFile implemented

props_observe.go

@@ -7,6 +7,18 @@ import (
 	"git.milar.in/milarin/channel"
 )
 
+func ObserveEndOfFile(ctx context.Context, socket string) (<-chan string, error) {
+	ch, err := ObserveEvent[any](ctx, socket, "end-file")
+	if err != nil {
+		return nil, err
+	}
+
+	getReason := func(e Event[any]) string { return e.Reason }
+	notEmpty := func(str string) bool { return str != "" }
+	reasons := channel.Filter(channel.MapSuccessive(ch, getReason), notEmpty)
+	return reasons, nil
+}
+
 func ObserveDisplayNames(ctx context.Context, socket string) (<-chan []string, error) {
 	return ObserveProperty[[]string](ctx, socket, "display-names")
 }