From c15710ddec571f03c618f0c706f863beb4a745ee Mon Sep 17 00:00:00 2001
From: Adrian Zuercher <adrianzuercher@MacBook-Air-von-Adrian.local>
Date: Wed, 30 Jul 2025 17:14:46 +0200
Subject: [PATCH] add remove buses when empty

---
 models/driver.go  | 6 +++++-
 models/drivers.go | 6 ++++++
 models/topic.go   | 5 ++++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/models/driver.go b/models/driver.go
index c1baa9a..d1fab04 100644
--- a/models/driver.go
+++ b/models/driver.go
@@ -1,6 +1,8 @@
 package models
 
-import "slices"
+import (
+	"slices"
+)
 
 // driver model
 type Driver struct {
@@ -46,9 +48,11 @@ func (d *Driver) RemoveBuses(buses []*Bus) {
 			}
 
 			currentBus.RemoveAddress(bus.Address...)
+
 			if bus.Topic != nil {
 				currentBus.RemoveSubscription(bus.Topic.Subscribe...)
 				currentBus.RemovePublish(bus.Topic.Publish...)
+
 				if len(currentBus.Address) == 0 {
 					var remove bool = true
 					if currentBus.Topic != nil {
diff --git a/models/drivers.go b/models/drivers.go
index d017c29..7fe1307 100644
--- a/models/drivers.go
+++ b/models/drivers.go
@@ -23,6 +23,12 @@ func (d *Drivers) AddDriver(drv *Driver) {
 func (d *Drivers) RemoveDriver(drv *Driver) {
 	if driver, ok := (*d)[drv.Type]; ok {
 		driver.RemoveBuses(drv.Buses)
+		if len(driver.Buses) == 1 {
+			if len(driver.Buses[0].Address) == 0 && driver.Buses[0].Topic == nil {
+				(*d)[drv.Type] = &Driver{}
+				return
+			}
+		}
 		(*d)[drv.Type] = driver
 		return
 	}
diff --git a/models/topic.go b/models/topic.go
index 0025186..3b2eb4c 100644
--- a/models/topic.go
+++ b/models/topic.go
@@ -1,6 +1,8 @@
 package models
 
-import "slices"
+import (
+	"slices"
+)
 
 // topic model
 type Topic struct {
@@ -33,6 +35,7 @@ func (t *Topic) RemoveSubscription(subs ...string) {
 		t.Subscribe = []string{}
 		return
 	}
+
 	for _, toDelete := range subs {
 		for i, a := range t.Subscribe {
 			if a == toDelete {