feat: allow to change tori admin

Signed-off-by: Norman Meier <norman@samourai.coop>

examples/gno.land/r/demo/teritori/dao_realm/dao_realm.gno

@@ -63,6 +63,9 @@ func init() {
 		func(core dao_interfaces.IDAOCore) dao_interfaces.MessageHandler {
 			return tori.NewBurnToriHandler()
 		},
+		func(core dao_interfaces.IDAOCore) dao_interfaces.MessageHandler {
+			return tori.NewChangeAdminHandler()
+		},
 	}
 
 	daoCore = dao_core.NewDAOCore(votingModuleFactory, proposalModulesFactories, messageHandlersFactories)

examples/gno.land/r/demo/teritori/tori/messages.gno

@@ -125,3 +125,57 @@ func (h BurnToriHandler) Type() string {
 func (h *BurnToriHandler) Instantiate() dao_interfaces.ExecutableMessage {
 	return &ExecutableMessageBurnTori{}
 }
+
+type ExecutableMessageChangeAdmin struct {
+	dao_interfaces.ExecutableMessage
+
+	NewAdmin users.AddressOrName
+}
+
+var _ dao_interfaces.ExecutableMessage = &ExecutableMessageChangeAdmin{}
+
+func (msg ExecutableMessageChangeAdmin) Type() string {
+	return "gno.land/r/demo/teritori/tori.ChangeAdmin"
+}
+
+func (msg *ExecutableMessageChangeAdmin) String() string {
+	var ss []string
+	ss = append(ss, msg.Type())
+	s := "New admin: " + string(msg.NewAdmin)
+	ss = append(ss, s)
+	return strings.Join(ss, "\n---\n")
+}
+
+func (msg *ExecutableMessageChangeAdmin) FromJSON(ast *json.Node) {
+	obj := ast.MustObject()
+	msg.NewAdmin = jsonutil.MustAddressOrName(obj["newAdmin"])
+}
+
+func (msg *ExecutableMessageChangeAdmin) ToJSON() *json.Node {
+	return json.ObjectNode("", map[string]*json.Node{
+		"newAdmin": jsonutil.AddressOrNameNode(msg.NewAdmin),
+	})
+}
+
+type ChangeAdminHandler struct {
+	dao_interfaces.MessageHandler
+}
+
+var _ dao_interfaces.MessageHandler = &ChangeAdminHandler{}
+
+func NewChangeAdminHandler() *ChangeAdminHandler {
+	return &ChangeAdminHandler{}
+}
+
+func (h *ChangeAdminHandler) Execute(imsg dao_interfaces.ExecutableMessage) {
+	msg := imsg.(*ExecutableMessageChangeAdmin)
+	ChangeAdmin(msg.NewAdmin)
+}
+
+func (h ChangeAdminHandler) Type() string {
+	return ExecutableMessageChangeAdmin{}.Type()
+}
+
+func (h *ChangeAdminHandler) Instantiate() dao_interfaces.ExecutableMessage {
+	return &ExecutableMessageChangeAdmin{}
+}

examples/gno.land/r/demo/teritori/tori/tori.gno

@@ -13,7 +13,7 @@ import (
 var (
 	tori     *grc20.AdminToken
 	userTori grc20.IGRC20
-	admin    std.Address = std.DerivePkgAddr("gno.land/r/demo/teritori/dao_realm") // TODO: public func and message to change admin
+	admin    std.Address = std.DerivePkgAddr("gno.land/r/demo/teritori/dao_realm")
 )
 
 func init() {
@@ -65,6 +65,12 @@ func TransferFrom(from, to users.AddressOrName, amount uint64) {
 
 // administration.
 
+func ChangeAdmin(newAdmin users.AddressOrName) {
+	caller := std.PrevRealm().Addr()
+	assertIsAdmin(caller)
+	admin = rusers.Resolve(newAdmin)
+}
+
 func Mint(address users.AddressOrName, amount uint64) {
 	caller := std.PrevRealm().Addr()
 	assertIsAdmin(caller)