fix: incorrect looping deposit amount

mrgnlabs · Dec 17, 2024 · 6a93b96 · 6a93b96
1 parent 69f6a44
commit 6a93b96
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Showing 3 changed files with 36 additions and 3 deletions.
diff --git a/packages/marginfi-client-v2/src/models/account/wrapper.ts b/packages/marginfi-client-v2/src/models/account/wrapper.ts
@@ -698,6 +698,7 @@ class MarginfiAccountWrapper {
         : [ComputeBudgetProgram.setComputeUnitLimit({ units: 500_000 })];
     // tiny priority fee just in case bundle fails
     const [priorityFeeIx] = makePriorityFeeIx(0.00001);
+    console.log("borrowAmount", borrowAmount.toString());
     const borrowIxs = await this.makeBorrowIx(
       borrowAmount,
       borrowBankAddress,
@@ -706,13 +707,15 @@ class MarginfiAccountWrapper {
         wrapAndUnwrapSol: false,
       }
     );
+    console.log("depositAmount", depositAmount.toString());
     const depositIxs = await this.makeDepositIx(
       depositAmount,
       depositBankAddress,
       depositOpts ?? {
         wrapAndUnwrapSol: false,
       }
     );
+
     const { instructions: updateFeedIxs, luts: feedLuts } = await this.makeUpdateFeedIx([
       depositBankAddress,
       borrowBankAddress,

diff --git a/packages/mrgn-utils/src/actions/flashloans/builders.ts b/packages/mrgn-utils/src/actions/flashloans/builders.ts
@@ -276,6 +276,23 @@ export async function calculateLoopingParams({
           additionalTxs: [],
         };
 
+        console.log("===========================================");
+        console.log("========== Flashloan Loop Params =========");
+        console.log("===========================================");
+        console.log("Max Accounts:", maxAccounts);
+        console.log("Borrow Amount:", borrowAmount.toString());
+        console.log("Deposit Amount:", depositAmount.toString());
+        console.log("Borrow Amount Native:", borrowAmountNative);
+        console.log("Min Swap Amount Out (UI):", minSwapAmountOutUi);
+        console.log("Actual Deposit Amount (UI):", actualDepositAmountUi);
+        console.log("-------------------------------------------");
+        console.log("Quote Details:");
+        console.log("Input Mint:", loopingProps.borrowBank.info.state.mint.toBase58());
+        console.log("Output Mint:", loopingProps.depositBank.info.state.mint.toBase58());
+        console.log("Slippage (bps):", slippageBps);
+        console.log("Platform Fee (bps):", platformFeeBps);
+        console.log("===========================================");
+
         if (loopingProps.marginfiAccount) {
           txn = await verifyTxSizeLooping({
             ...loopingProps,
@@ -335,7 +352,8 @@ export async function calculateLoopingTransaction(props: LoopingProps): Promise<
  */
 export async function loopingBuilder({
   marginfiAccount,
-  depositAmount,
+  // depositAmount,
+  actualDepositAmount,
   borrowAmount,
   depositBank,
   borrowBank,
@@ -378,7 +396,7 @@ export async function loopingBuilder({
   const { blockhash, lastValidBlockHeight } = await connection.getLatestBlockhash("confirmed");
 
   const { flashloanTx, additionalTxs, txOverflown } = await marginfiAccount.makeLoopTxV2({
-    depositAmount,
+    depositAmount: actualDepositAmount,
     borrowAmount,
     depositBankAddress: depositBank.address,
     borrowBankAddress: borrowBank.address,

diff --git a/packages/mrgn-utils/src/actions/flashloans/helpers.ts b/packages/mrgn-utils/src/actions/flashloans/helpers.ts
@@ -283,7 +283,7 @@ export function getLoopingParamsForAccount(
   amount: number,
   slippageBps: number
 ) {
-  const principalBufferAmountUi = amount * targetLeverage * (slippageBps / 10000);
+  const principalBufferAmountUi = amount * targetLeverage * ((slippageBps + 30) / 10000);
   const adjustedPrincipalAmountUi = amount - principalBufferAmountUi;
 
   const { borrowAmount, totalDepositAmount: depositAmount } = marginfiAccount.computeLoopingParams(
@@ -295,5 +295,17 @@ export function getLoopingParamsForAccount(
 
   const borrowAmountNative = uiToNative(borrowAmount, borrowBank.info.state.mintDecimals).toNumber();
 
+  console.log("===========================================");
+  console.log("========== Looping Params Result =========");
+  console.log("===========================================");
+  console.log("Target Leverage:", targetLeverage);
+  console.log("Amount:", amount);
+  console.log("Slippage (bps):", slippageBps);
+  console.log("-------------------------------------------");
+  console.log("Final borrowAmount:", borrowAmount.toString());
+  console.log("Final depositAmount:", depositAmount.toString());
+  console.log("Final borrowAmountNative:", borrowAmountNative);
+  console.log("===========================================");
+
   return { borrowAmount, depositAmount, borrowAmountNative };
 }