From f21585782fd604b9b96a856a92f75a90138f4f8e Mon Sep 17 00:00:00 2001
From: softsimon <softsimon@protonmail.com>
Date: Fri, 27 Mar 2020 17:56:42 +0700
Subject: [PATCH] Adding unfairly cheap for very low fee transactions.

---
 .../app/components/transaction/transaction.component.html   | 1 +
 .../src/app/components/transaction/transaction.component.ts | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/frontend/src/app/components/transaction/transaction.component.html b/frontend/src/app/components/transaction/transaction.component.html
index f135e441a..faf16284e 100644
--- a/frontend/src/app/components/transaction/transaction.component.html
+++ b/frontend/src/app/components/transaction/transaction.component.html
@@ -59,6 +59,7 @@
                     <td>
                       {{ tx.fee / (tx.weight / 4) | number : '1.1-1' }} sats/vB
                       &nbsp;
+                      <span *ngIf="feeRating === 0" class="badge badge-success">Unfairly cheap</span>
                       <span *ngIf="feeRating === 1" class="badge badge-success">Optimal</span>
                       <span *ngIf="feeRating === 2" class="badge badge-warning" title="Only ~{{ medianFeeNeeded }} sat/vB was needed to get into this block">Overpaid {{ overpaidTimes }}x</span>
                       <span *ngIf="feeRating === 3" class="badge badge-danger" title="Only ~{{ medianFeeNeeded }} sat/vB was needed to get into this block">Overpaid {{ overpaidTimes }}x</span>
diff --git a/frontend/src/app/components/transaction/transaction.component.ts b/frontend/src/app/components/transaction/transaction.component.ts
index faa7b7839..a61ec1010 100644
--- a/frontend/src/app/components/transaction/transaction.component.ts
+++ b/frontend/src/app/components/transaction/transaction.component.ts
@@ -116,7 +116,7 @@ export class TransactionComponent implements OnInit, OnDestroy {
 
         for (const block of mempoolBlocks) {
           for (let i = 0; i < block.feeRange.length - 1; i++) {
-            if (txFeePerVSize < block.feeRange[i + 1] && txFeePerVSize >= block.feeRange[i]) {
+            if (txFeePerVSize <= block.feeRange[i + 1] && txFeePerVSize >= block.feeRange[i]) {
               this.txInBlockIndex = mempoolBlocks.indexOf(block);
             }
           }
@@ -148,7 +148,9 @@ export class TransactionComponent implements OnInit, OnDestroy {
 
         this.overpaidTimes = Math.round(feePervByte / this.medianFeeNeeded);
 
-        if (feePervByte <= this.medianFeeNeeded || this.overpaidTimes < 2) {
+        if (feePervByte < 0.9) {
+          this.feeRating = 0;
+        } else if (feePervByte <= this.medianFeeNeeded || this.overpaidTimes < 2) {
           this.feeRating = 1;
         } else {
           this.feeRating = 2;