fix: adjust max amount bound calculation for RPC v0.7.0

Author: penovicp

__tests__/utils/stark.test.ts

@@ -79,10 +79,20 @@ describe('stark', () => {
       overall_fee: '1000',
       unit: 'FRI',
     };
+    const estimateFeeResponse07: FeeEstimate = {
+      ...estimateFeeResponse,
+      data_gas_consumed: '100',
+      data_gas_price: '10',
+      overall_fee: '2000',
+    };
     expect(stark.estimateFeeToBounds(estimateFeeResponse)).toStrictEqual({
       l2_gas: { max_amount: '0x0', max_price_per_unit: '0x0' },
       l1_gas: { max_amount: '0x6e', max_price_per_unit: '0xf' },
     });
+    expect(stark.estimateFeeToBounds(estimateFeeResponse07)).toStrictEqual({
+      l2_gas: { max_amount: '0x0', max_price_per_unit: '0x0' },
+      l1_gas: { max_amount: '0xdc', max_price_per_unit: '0xf' },
+    });
   });
 
   test('v3Details', () => {

src/utils/stark.ts

@@ -114,7 +114,11 @@ export function estimateFeeToBounds(
   if (typeof estimate.gas_consumed === 'undefined' || typeof estimate.gas_price === 'undefined') {
     throw Error('estimateFeeToBounds: estimate is undefined');
   }
-  const maxUnits = toHex(addPercent(estimate.gas_consumed, amountOverhead));
+
+  const maxUnits =
+    estimate.data_gas_consumed !== undefined && estimate.data_gas_price !== undefined // RPC v0.7
+      ? toHex(addPercent(BigInt(estimate.overall_fee) / BigInt(estimate.gas_price), amountOverhead))
+      : toHex(addPercent(estimate.gas_consumed, amountOverhead));
   const maxUnitPrice = toHex(addPercent(estimate.gas_price, priceOverhead));
   return {
     l2_gas: { max_amount: '0x0', max_price_per_unit: '0x0' },