add remove buses when empty

models/bus.go

@@ -4,7 +4,7 @@ import "slices"
 
 // bus model
 type Bus struct {
-	Name    string `json:"name,omitempty"`
+	Name    string `json:"name"`
 	Address []uint `json:"address,omitempty"` // address of bus
 	Topic   *Topic `json:"topic,omitempty"`   // address of bus
 }
@@ -16,9 +16,7 @@ func (b *Bus) AddAddress(address ...uint) {
 		}
 		b.Address = append(b.Address, a)
 		slices.Sort(b.Address)
-
 	}
-
 }
 
 func (b *Bus) AddSubscription(sub ...string) {
@@ -34,3 +32,25 @@ func (b *Bus) AddPublish(pub ...string) {
 	}
 	b.Topic.AddPublish(pub...)
 }
+
+func (b *Bus) RemoveAddress(address ...uint) {
+	if len(b.Address) == 1 {
+		b.Address = []uint{}
+		return
+	}
+	for _, toDelete := range address {
+		for i, a := range b.Address {
+			if a == toDelete {
+				b.Address = slices.Delete(b.Address, i, i+1)
+			}
+		}
+	}
+}
+
+func (b *Bus) RemoveSubscription(sub ...string) {
+	b.Topic.RemoveSubscription(sub...)
+}
+
+func (b *Bus) RemovePublish(pub ...string) {
+	b.Topic.RemovePublish(pub...)
+}

models/driver.go

@@ -1,43 +1,86 @@
 package models
 
+import (
+	"slices"
+)
+
 // driver model
 type Driver struct {
 	Type  string `json:"type"`            // driver type name of driver in collection
-	Buses map[string]*Bus `json:"buses"` // name of driver bus
+	Buses []*Bus `json:"buses,omitempty"` // name of driver bus
 }
 
 func (d *Driver) AddNewBus(name string) *Bus {
-	if d.Buses == nil {
-		d.Buses = make(map[string]*Bus)
-	}
-	if b, ok := d.Buses[name]; ok {
+	for _, b := range d.Buses {
+		if b.Name == name {
 			return b
 		}
-	d.Buses[name] = &Bus{Name: name}
-	return d.Buses[name]
+	}
+	b := &Bus{Name: name}
+	d.Buses = append(d.Buses, b)
+	return b
 }
 
-func (d *Driver) AddBuses(buses map[string]*Bus) {
-	if d.Buses == nil {
-		d.Buses = make(map[string]*Bus)
+func (d *Driver) AddBuses(buses []*Bus) {
+next:
+	for _, newBus := range buses {
+		for _, currentBus := range d.Buses {
+			if currentBus.Name != newBus.Name {
+				continue
 			}
-	for key, newBus := range buses {
-		if currentBus, ok := d.Buses[key]; ok {
 			currentBus.AddAddress(newBus.Address...)
 			if newBus.Topic == nil {
-				continue
+				continue next
 			}
 			currentBus.AddSubscription(newBus.Topic.Subscribe...)
 			currentBus.AddPublish(newBus.Topic.Publish...)
+			continue next
+		}
+		d.Buses = append(d.Buses, newBus)
+	}
+}
+
+func (d *Driver) RemoveBuses(buses []*Bus) {
+	for _, bus := range buses {
+		for _, currentBus := range d.Buses {
+			if currentBus.Name != bus.Name {
 				continue
 			}
-		d.Buses[key] = newBus
+
+			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 {
+						remove = len(currentBus.Topic.Subscribe) == 0 && len(currentBus.Topic.Publish) == 0
+					}
+					if remove {
+						if len(d.Buses) == 1 {
+							d.Buses = []*Bus{}
+							return
+						}
+						for i, b := range d.Buses {
+							if bus.Name == b.Name {
+								d.Buses = slices.Delete(d.Buses, i, i+1)
+							}
+						}
+					}
+				}
+				break
+			}
+		}
 	}
 }
 
 func (d *Driver) GetBus(name string) *Bus {
-	if b, ok := d.Buses[name]; ok {
+	for _, b := range d.Buses {
+		if b.Name == name {
 			return b
 		}
+	}
 	return nil
 }

models/drivers.go

@@ -11,10 +11,25 @@ func (d *Drivers) AddNewDriver(typ string) *Driver {
 	return (*d)[typ]
 }
 
-func (d *Drivers) AddDriver(drv Driver) {
+func (d *Drivers) AddDriver(drv *Driver) {
 	if driver, ok := (*d)[drv.Type]; ok {
 		driver.AddBuses(drv.Buses)
 		(*d)[drv.Type] = driver
+		return
+	}
+	(*d)[drv.Type] = drv
+}
+
+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
 	}
-	(*d)[drv.Type] = &drv
 }

models/topic.go

@@ -1,10 +1,12 @@
 package models
 
-import "slices"
+import (
+	"slices"
+)
 
 // topic model
 type Topic struct {
-	Publish   []string `json:"Publish,omitempty"`
+	Publish   []string `json:"publish,omitempty"`
 	Subscribe []string `json:"subscribe,omitempty"`
 }
 
@@ -27,3 +29,32 @@ func (t *Topic) AddPublish(pubs ...string) {
 		slices.Sort(t.Publish)
 	}
 }
+
+func (t *Topic) RemoveSubscription(subs ...string) {
+	if len(t.Subscribe) == 1 {
+		t.Subscribe = []string{}
+		return
+	}
+
+	for _, toDelete := range subs {
+		for i, a := range t.Subscribe {
+			if a == toDelete {
+				t.Subscribe = slices.Delete(t.Subscribe, i, i+1)
+			}
+		}
+	}
+}
+
+func (t *Topic) RemovePublish(pubs ...string) {
+	if len(t.Publish) == 1 {
+		t.Publish = []string{}
+		return
+	}
+	for _, toDelete := range pubs {
+		for i, a := range t.Publish {
+			if a == toDelete {
+				t.Publish = slices.Delete(t.Publish, i, i+1)
+			}
+		}
+	}
+}