mooncx fix

Author: mr-tron

abi/mooncx.go

@@ -76,8 +76,12 @@ func (m *MoonNextPayload) UnmarshalJSON(data []byte) error {
 	if err := json.Unmarshal(data, &r); err != nil {
 		return err
 	}
-	id := ton.MustParseAccountID(r.Recipient)
-	m.Recipient = id.ToMsgAddress()
+	if r.Recipient == "" {
+		m.Recipient = tlb.MsgAddress{SumType: "AddrNone"}
+	} else {
+		id := ton.MustParseAccountID(r.Recipient)
+		m.Recipient = id.ToMsgAddress()
+	}
 	if r.Payload != "" {
 		c, err := boc.DeserializeBocHex(r.Payload)
 		if err != nil {

abi/mooncx_test.go

@@ -46,6 +46,11 @@ func TestMooncxSwapParams(t *testing.T) {
 			json: `{"MinOut":"3","Deadline":0,"Excess":"0:05ea635b2a168cadfca174d72b12744a5b57d70378e6912e8a33b6b39bd3ee9d","Referral":"0:05ea635b2a168cadfca174d72b12744a5b57d70378e6912e8a33b6b39bd3ee9d","NextFulfill":{"Recipient":"0:2cf3b5b8c891e517c9addbda1c0386a09ccacbb0e3faf630b51cfc8152325acb","Payload":"b5ee9c7201010101000800000b0000177beb90"},"NextReject":null}`,
 			want: `{"MinOut":"3","Deadline":0,"Excess":"0:05ea635b2a168cadfca174d72b12744a5b57d70378e6912e8a33b6b39bd3ee9d","Referral":"0:05ea635b2a168cadfca174d72b12744a5b57d70378e6912e8a33b6b39bd3ee9d","NextFulfill":{"Recipient":"0:2cf3b5b8c891e517c9addbda1c0386a09ccacbb0e3faf630b51cfc8152325acb","Payload":"b5ee9c7201010101000800000b0000177beb90"},"NextReject":null}`,
 		},
+		{
+			name: "problem",
+			json: `{"MinOut":"1","Deadline":0,"Excess":"0:84c49bf79ed9a5720dbe973e2c654521cb4959415a3d003a16b8bc65c09e8bd6","Referral":"","NextFulfill":{"Payload":null,"Recipient":""},"NextReject":null}`,
+			want: `{"MinOut":"1","Deadline":0,"Excess":"0:84c49bf79ed9a5720dbe973e2c654521cb4959415a3d003a16b8bc65c09e8bd6","Referral":"","NextFulfill":{"Recipient":"","Payload":null},"NextReject":null}`,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {