Calculator visual results

frontend/src/app/shared/pipes/bitcoinsatoshis.pipe.ts

@@ -0,0 +1,28 @@
+import { Pipe, PipeTransform } from '@angular/core';
+import { DomSanitizer, SafeHtml } from '@angular/platform-browser';
+
+@Pipe({
+  name: 'bitcoinsatoshis'
+})
+export class BitcoinsatoshisPipe implements PipeTransform {
+
+  constructor(private sanitizer: DomSanitizer) { }
+
+  transform(value: string): SafeHtml {
+    const newValue = this.insertSpaces(parseFloat(value || '0').toFixed(8));
+    const position = (newValue || '0').search(/[1-9]/);
+
+    const firstPart = newValue.slice(0, position);
+    const secondPart = newValue.slice(position);
+
+    return this.sanitizer.bypassSecurityTrustHtml(
+      `<span class="text-secondary">${firstPart}</span>${secondPart}`
+    );
+  }
+
+  insertSpaces(str: string): string {
+    const length = str.length;
+    return str.slice(0, length - 6) + ' ' + str.slice(length - 6, length - 3) + ' ' + str.slice(length - 3);
+  }
+
+}