feat(sdk-coin-canton): added handling is parse raw canton transaction to correctly extract the data

Ticket: COIN-6180

Author: ravibitgo

modules/sdk-coin-canton/src/lib/utils.ts

@@ -94,32 +94,47 @@ export class Utils implements BaseUtils {
 
       const createNode = nodeType.create;
 
+      const getField = (fields: RecordField[], label: string) => fields.find((f) => f.label === label)?.value?.sum;
+
       // Check if it's the correct template
       const template = createNode.templateId;
-      if (template?.entityName !== 'AmuletTransferInstruction') return;
-
-      // Now parse the 'create' argument
-      if (createNode.argument?.sum?.oneofKind !== 'record') return;
-      const fields = createNode.argument?.sum?.record?.fields;
+      const argSum = createNode.argument?.sum;
+      if (!argSum || argSum.oneofKind !== 'record') return;
+      const fields = argSum.record?.fields;
       if (!fields) return;
-
-      // Find the 'transfer' field
-      const transferField = fields.find((f) => f.label === 'transfer');
-      if (transferField?.value?.sum?.oneofKind !== 'record') return;
-      const transferRecord = transferField?.value?.sum?.record?.fields;
-      if (!transferRecord) return;
-
-      const getField = (fields: RecordField[], label: string) => fields.find((f) => f.label === label)?.value?.sum;
-
-      const senderData = getField(transferRecord, 'sender');
-      if (!senderData || senderData.oneofKind !== 'party') return;
-      sender = senderData.party;
-      const receiverData = getField(transferRecord, 'receiver');
-      if (!receiverData || receiverData.oneofKind !== 'party') return;
-      receiver = receiverData.party;
-      const amountData = getField(transferRecord, 'amount');
-      if (!amountData || amountData.oneofKind !== 'numeric') return;
-      amount = amountData.numeric;
+      if (template?.entityName === 'AmuletTransferInstruction') {
+        const transferField = fields.find((f) => f.label === 'transfer');
+        const transferSum = transferField?.value?.sum;
+        if (!transferSum || transferSum.oneofKind !== 'record') return;
+        const transferRecord = transferSum.record?.fields;
+        if (!transferRecord) return;
+        const senderData = getField(transferRecord, 'sender');
+        if (senderData?.oneofKind === 'party') sender = senderData.party ?? '';
+
+        const receiverData = getField(transferRecord, 'receiver');
+        if (receiverData?.oneofKind === 'party') receiver = receiverData.party ?? '';
+
+        const amountData = getField(transferRecord, 'amount');
+        if (amountData?.oneofKind === 'numeric') amount = amountData.numeric ?? '';
+      } else if (template?.entityName === 'Amulet') {
+        const dsoData = getField(fields, 'dso');
+        if (dsoData?.oneofKind === 'party') sender = dsoData.party ?? '';
+        const ownerData = getField(fields, 'owner');
+        if (ownerData?.oneofKind === 'party') receiver = ownerData.party ?? '';
+        const amountField = getField(fields, 'amount');
+        if (!amountField || amountField.oneofKind !== 'record') return;
+
+        const amountRecord = amountField.record?.fields;
+        if (!amountRecord) return;
+        const initialAmountData = getField(amountRecord, 'initialAmount');
+        if (initialAmountData?.oneofKind === 'numeric') amount = initialAmountData.numeric ?? '';
+      } else if (template?.entityName === 'TransferPreapprovalProposal') {
+        const receiverData = getField(fields, 'receiver');
+        if (receiverData?.oneofKind === 'party') receiver = receiverData.party ?? '';
+        const providerData = getField(fields, 'provider');
+        if (providerData?.oneofKind === 'party') sender = providerData.party ?? '';
+        amount = '0';
+      }
     });
     if (!sender || !receiver || !amount) {
       const missingFields: string[] = [];

modules/sdk-coin-canton/test/unit/utils.ts

@@ -4,8 +4,10 @@ import utils from '../../src/lib/utils';
 import {
   CANTON_ADDRESSES,
   GenerateTopologyResponse,
+  OneStepPreApprovalPrepareResponse,
   PreparedTransactionRawData,
   PrepareSubmissionResponse,
+  TransferAcceptancePrepareResponse,
 } from '../resources';
 
 describe('Canton Util', function () {
@@ -17,6 +19,31 @@ describe('Canton Util', function () {
       assert.equal(parsedData.receiver, 'abc-2::12207e96ada18a845adf4dc01410265633d5266dca9bb280c98e35c3692db87d3e35');
       assert.equal(parsedData.amount, '20.0000000000');
     });
+
+    it('should parse the acceptance prepared transaction', () => {
+      const parsedData = utils.parseRawCantonTransactionData(TransferAcceptancePrepareResponse.preparedTransaction);
+      should.exist(parsedData);
+      assert.equal(parsedData.sender, 'DSO::1220be58c29e65de40bf273be1dc2b266d43a9a002ea5b18955aeef7aac881bb471a');
+      assert.equal(
+        parsedData.receiver,
+        'ravi-demo-party-txn-01-tapper::1220ea7ab5a723f8a6b2078e617e6c58cb7e78e49947ddc239e1a941aa56e6ba08b4'
+      );
+      assert.equal(parsedData.amount, '5.0000000000');
+    });
+
+    it('should parse the one-step preapproval prepared transaction', () => {
+      const parsedData = utils.parseRawCantonTransactionData(OneStepPreApprovalPrepareResponse.preparedTransaction);
+      should.exist(parsedData);
+      assert.equal(
+        parsedData.sender,
+        'Bitgo-devnet-validator-1::1220a0a0f60b0e62b5d750c484b18c091dba23080c133d944614ba75a5858cba3045'
+      );
+      assert.equal(
+        parsedData.receiver,
+        'ravi-test-party-1::12205b4e3537a95126d90604592344d8ad3c3ddccda4f79901954280ee19c576714d'
+      );
+      assert.equal(parsedData.amount, '0');
+    });
   });
 
   describe('Wallet init transaction', function () {