fix: added hard fork date for payment lut change

Author: LukaAvbreht

src/entity/xrp-entity-definitions.ts

@@ -108,14 +108,24 @@ export class DBXrpTransaction {
       throw new Error('Invalid response JSON');
     }
     const { metaData: _, ...txDataRest } = txData;
+
+    // Hard fork: blocks before this timestamp use transaction.timestamp that adds the XRP_UTD twice for all further calculations
+    // calculations after fork time correctly pass the modified timestamp (the same one as xrpl node returns)
+    // Delete me after 1777366800 Thursday, 28 April 2026 at 11:00:00 CEST keep
+    // const modifiedTimestamp = this.timestamp - XRP_UTD;
+    const LUT_FORK_TIMESTAMP = 1777366800;
+    const modifiedTimestamp = this.timestamp < LUT_FORK_TIMESTAMP
+        ? this.timestamp
+        : this.timestamp - XRP_UTD;
+
     const modifiedTxData: IXrpGetTransactionRes = {
       result: {
         ...txDataRest,
         hash: txData.hash,
         ledger_index: this.block_number,
         meta: txData.metaData,
         validated: true,
-        date: this.timestamp - XRP_UTD,
+        date: modifiedTimestamp,
       } as IXrpGetTransactionRes['result'],
       id: '',
       type: '',

test/e2e_tests/xrp/balance_decreasing_transaction/balance_decreasing_transaction_prepare_response.e2e-spec.ts

@@ -35,7 +35,7 @@ describe(`/BalanceDecreasingTransaction/prepareResponse (${getTestFile(__filenam
       '0x7465737458525000000000000000000000000000000000000000000000000000',
     );
     expect(res.votingRound).to.be.equal('0');
-    expect(res.lowestUsedTimestamp).to.be.equal('1733477300');
+    expect(res.lowestUsedTimestamp).to.be.equal('2680162100');
     expect(res.requestBody.transactionId).to.be.equal(
       '0xa7182f8cac67e7b0e16cca46e2b40abb01565d207d525a6f0a27c057f35f800c',
     );

test/e2e_tests/xrp/payment/payment_prepare_response.e2e-spec.ts

@@ -34,7 +34,7 @@ describe(`/Payment/prepareResponse (${getTestFile(__filename)})`, () => {
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1733477300',
+      '2680162100',
     );
     expect(response.body.response.requestBody.transactionId).to.be.equal(
       '0xa7182f8cac67e7b0e16cca46e2b40abb01565d207d525a6f0a27c057f35f800c',