implement delete flow

flow.go

@@ -382,9 +382,51 @@ func (f *KeycardFlow) unpairThisFlow(kc *keycardContext) (FlowStatus, error) {
 }
 
 func (f *KeycardFlow) unpairOthersFlow(kc *keycardContext) (FlowStatus, error) {
-	return nil, errors.New("not implemented yet")
+	err := f.openSCAndAuthenticate(kc, true)
+
+	if err != nil {
+		return nil, err
+	}
+
+	for i := 0; i < maxFreeSlots; i++ {
+		if i == kc.cmdSet.PairingInfo.Index {
+			continue
+		}
+
+		err = f.unpair(kc, i)
+
+		if err != nil {
+			return nil, err
+		}
+
+		f.cardInfo.freeSlots++
+	}
+
+	return FlowStatus{InstanceUID: f.cardInfo.instanceUID, FreeSlots: f.cardInfo.freeSlots}, nil
 }
 
 func (f *KeycardFlow) deleteUnpairFlow(kc *keycardContext) (FlowStatus, error) {
-	return nil, errors.New("not implemented yet")
+	err := f.openSCAndAuthenticate(kc, true)
+
+	if err != nil {
+		return nil, err
+	}
+
+	err = f.removeKey(kc)
+
+	if err != nil {
+		return nil, err
+	}
+
+	f.cardInfo.keyUID = ""
+
+	err = f.unpairCurrent(kc)
+
+	if err != nil {
+		return nil, err
+	}
+
+	f.cardInfo.freeSlots++
+
+	return FlowStatus{InstanceUID: f.cardInfo.instanceUID, KeyUID: f.cardInfo.keyUID, FreeSlots: f.cardInfo.freeSlots}, nil
 }

flow_commands.go

@@ -250,6 +250,26 @@ func (f *KeycardFlow) unpairCurrent(kc *keycardContext) error {
 	return err
 }
 
+func (f *KeycardFlow) unpair(kc *keycardContext, idx int) error {
+	err := kc.unpair(uint8(idx))
+
+	if isSCardError(err) {
+		return restartErr()
+	}
+
+	return err
+}
+
+func (f *KeycardFlow) removeKey(kc *keycardContext) error {
+	err := kc.removeKey()
+
+	if isSCardError(err) {
+		return restartErr()
+	}
+
+	return err
+}
+
 func (f *KeycardFlow) exportKey(kc *keycardContext, path string, onlyPublic bool) (*KeyPair, error) {
 	keyPair, err := kc.exportKey(true, false, onlyPublic, path)