Update fee distribution graph and fix arrow.

frontend/src/app/components/fee-distribution-graph/fee-distribution-graph.component.ts

@@ -1,7 +1,6 @@
-import { Component, OnInit, Input, OnChanges } from '@angular/core';
-import { FormBuilder, FormGroup } from '@angular/forms';
-import * as Chartist from 'chartist';
+import { Component, Input, OnChanges } from '@angular/core';
 import { VbytesPipe } from 'src/app/pipes/bytes-pipe/vbytes.pipe';
+import * as Chartist from 'chartist';
 
 @Component({
   selector: 'app-fee-distribution-graph',
@@ -14,16 +13,10 @@ export class FeeDistributionGraphComponent implements OnChanges {
   mempoolVsizeFeesData: any;
   mempoolVsizeFeesOptions: any;
 
-  mempoolVsizeFeesPieData: any;
-  mempoolVsizeFeesPieOptions: any;
-
   feeLevels = [1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200,
   250, 300, 350, 400, 500];
 
-  radioGroupForm: FormGroup;
-
   constructor(
-    private vbytesPipe: VbytesPipe,
   ) { }
 
   ngOnChanges() {
@@ -31,14 +24,22 @@ export class FeeDistributionGraphComponent implements OnChanges {
       showArea: true,
       showLine: true,
       fullWidth: true,
-      showPoint: false,
+      showPoint: true,
       low: 0,
       axisY: {
-        labelInterpolationFnc: (value: number): any => {
-          return this.vbytesPipe.transform(value, 2);
-        },
-        offset: 60
+        showLabel: false,
       },
+      axisX: {
+        showGrid: true,
+        showLabel: false,
+        offset: 0
+      },
+      plugins: [
+        Chartist.plugins.ctPointLabels({
+          textAnchor: 'middle',
+          labelInterpolationFnc: (value) => Math.round(value)
+        })
+      ]
     };
 
     const fees = this.feeRange;
@@ -46,12 +47,13 @@ export class FeeDistributionGraphComponent implements OnChanges {
 
     for (let i = 0; i < this.feeLevels.length; i++) {
       let total = 0;
-      for (let j = 0; j < fees.length; j++) {
+      // for (let j = 0; j < fees.length; j++) {
+      for (const fee of fees) {
         if (i === this.feeLevels.length - 1) {
-          if (fees[j] >= this.feeLevels[i]) {
+          if (fee >= this.feeLevels[i]) {
             total += 1;
           }
-        } else  if (fees[j] >= this.feeLevels[i] && fees[j] < this.feeLevels[i + 1]) {
+        } else  if (fee >= this.feeLevels[i] && fee < this.feeLevels[i + 1]) {
           total += 1;
         }
       }
@@ -59,7 +61,8 @@ export class FeeDistributionGraphComponent implements OnChanges {
     }
 
     this.mempoolVsizeFeesData = {
-      series: [fees]
+      series: [fees],
+      labels: fees.map((d, i) => i)
     };
   }