fix satoshis to fiat format

src/app/app.module.ts

@@ -2,6 +2,7 @@ import { BrowserModule } from '@angular/platform-browser';
 import { ErrorHandler, NgModule, APP_INITIALIZER } from '@angular/core';
 import { HttpClient, HttpClientModule } from '@angular/common/http';
 import { IonicApp, IonicModule, IonicErrorHandler } from 'ionic-angular';
+import { DecimalPipe } from '@angular/common';
 
 /* Native modules */
 import { AndroidFingerprintAuth } from '@ionic-native/android-fingerprint-auth';
@@ -183,6 +184,7 @@ let providers: any = [
   TxConfirmNotificationProvider,
   TxFormatProvider,
   WalletProvider,
+  DecimalPipe,
   {
     provide: ErrorHandler,
     useClass: IonicErrorHandler

src/pipes/toFiat.ts

@@ -1,18 +1,23 @@
 import { Pipe, PipeTransform } from '@angular/core';
 import { TxFormatProvider } from '../providers/tx-format/tx-format';
 import { ConfigProvider } from '../providers/config/config';
+import { DecimalPipe } from '@angular/common';
 
 @Pipe({ name: 'toFiat' })
 export class ToFiatPipe implements PipeTransform {
   private unitCode: string;
+  private alternativeIsoCode: string;
 
   constructor(
     private configProvider: ConfigProvider,
-    private txFormatProvider: TxFormatProvider
+    private txFormatProvider: TxFormatProvider,
+    private decimalPipe: DecimalPipe,
   ) { 
     this.unitCode = this.configProvider.get().wallet.settings.unitCode;
+    this.alternativeIsoCode = this.configProvider.get().wallet.settings.alternativeIsoCode;
   }
   transform(value: string, satoshis: number): any {
-    return this.txFormatProvider.formatAlternativeStr(this.unitCode, satoshis);
+    let amount = this.txFormatProvider.toFiat(this.unitCode, satoshis, this.alternativeIsoCode) || 0;
+    return this.decimalPipe.transform(amount, '1.2-2') + ' ' + this.alternativeIsoCode;
   }
 }

src/providers/tx-format/tx-format.ts

@@ -37,14 +37,12 @@ export class TxFormatProvider {
     return (this.formatAmount(satoshis) + ' ' + coin.toUpperCase());
   }
 
-  public toFiat(coin: string, satoshis: number, code: string): Promise<any> {
-    return new Promise((resolve, reject) => {
-      if (isNaN(satoshis)) return resolve();
-      var v1;
-      v1 = this.rate.toFiat(satoshis, code, coin);
-      if (!v1) return resolve(null);
-      return resolve(v1.toFixed(2));
-    });
+  public toFiat(coin: string, satoshis: number, code: string): number {
+    if (isNaN(satoshis)) return;
+    var v1;
+    v1 = this.rate.toFiat(satoshis, code, coin);
+    if (!v1) return null;
+    return v1.toFixed(2);
   }
 
   public formatToUSD(coin: string, satoshis: number): Promise<any> {