From 9fcd93191b36b08a4e9f79fcd8478d7b8f6cbee3 Mon Sep 17 00:00:00 2001
From: Dan J Miller <danjm.com@gmail.com>
Date: Wed, 4 Aug 2021 20:14:20 -0230
Subject: [PATCH] Ensure that gas fee minimum errors show when api is down
 (#11767)

* Fix legacy unapproved tx handling

* clean up
---
 ui/hooks/useGasFeeInputs.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/ui/hooks/useGasFeeInputs.js b/ui/hooks/useGasFeeInputs.js
index 0f2655b4a..7c3195fcd 100644
--- a/ui/hooks/useGasFeeInputs.js
+++ b/ui/hooks/useGasFeeInputs.js
@@ -414,6 +414,17 @@ export function useGasFeeInputs(
     gasErrors.gasLimit = GAS_FORM_ERRORS.GAS_LIMIT_OUT_OF_BOUNDS;
   }
 
+  // This ensures these are applied when the api fails to return a fee market type
+  // It is okay if these errors get overwritten below, as those overwrites can only
+  // happen when the estimate api is live.
+  if (networkAndAccountSupports1559) {
+    if (maxPriorityFeePerGasToUse <= 0) {
+      gasErrors.maxPriorityFee = GAS_FORM_ERRORS.MAX_PRIORITY_FEE_BELOW_MINIMUM;
+    } else if (maxPriorityFeePerGasToUse >= maxFeePerGasToUse) {
+      gasErrors.maxFee = GAS_FORM_ERRORS.MAX_FEE_IMBALANCE;
+    }
+  }
+
   switch (gasEstimateType) {
     case GAS_ESTIMATE_TYPES.FEE_MARKET:
       if (maxPriorityFeePerGasToUse <= 0) {