add dat base

device/pointer.go

@@ -1,6 +1,7 @@
 package device
 
 import (
+	"git.aiterp.net/lucifer3/server/internal/gentools"
 	"strings"
 )
 
@@ -13,14 +14,9 @@ type Pointer struct {
 	Aliases []string `json:"aliases"`
 }
 
-func (p *Pointer) AddAlias(alias string) {
-	if strings.HasPrefix(alias, "lucifer:name:") {
-		for i, alias2 := range p.Aliases {
-			if strings.HasPrefix(alias2, "lucifer:name:") {
-				p.Aliases = append(p.Aliases[:i], p.Aliases[i+1:]...)
-				break
-			}
-		}
+func (p *Pointer) AddAlias(alias string) (added *string, removed *string) {
+	if !strings.HasPrefix(alias, "lucifer:") {
+		return
 	}
 
 	for _, alias2 := range p.Aliases {
@@ -29,16 +25,35 @@ func (p *Pointer) AddAlias(alias string) {
 		}
 	}
 
+	if strings.HasPrefix(alias, "lucifer:name:") {
+		for i, alias2 := range p.Aliases {
+			if strings.HasPrefix(alias2, "lucifer:name:") {
+				p.Aliases = append(p.Aliases[:i], p.Aliases[i+1:]...)
+				removed = gentools.ShallowCopy(&alias2)
+				break
+			}
+		}
+	}
+
+	added = gentools.ShallowCopy(&alias)
 	p.Aliases = append(p.Aliases, alias)
+	return
 }
 
-func (p *Pointer) RemoveAlias(alias string) {
+func (p *Pointer) RemoveAlias(alias string) bool {
+	if strings.HasPrefix(alias, "lucifer:name:") {
+		// Name cannot be removed like this.
+		return false
+	}
+
 	for i, alias2 := range p.Aliases {
 		if alias2 == alias {
 			p.Aliases = append(p.Aliases[:i], p.Aliases[i+1:]...)
-			break
+			return true
 		}
 	}
+
+	return false
 }
 
 func (p *Pointer) Name() string {