initial commit: working version

ui/src/app/downloads.pipe.ts

@@ -0,0 +1,37 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({
+  name: 'eta'
+})
+export class EtaPipe implements PipeTransform {
+  transform(value: number, ...args: any[]): any {
+    if (value === null) {
+      return null;
+    }
+    if (value < 60) {
+      return `${value}s`;
+    }
+    if (value < 3600) {
+      return `${Math.floor(value/60)}m ${value%60}s`;
+    }
+    const hours = Math.floor(value/3600)
+    const minutes = value % 3600
+    return `${hours}h ${Math.floor(minutes/60)}m ${minutes%60}s`;
+  }
+}
+
+@Pipe({
+  name: 'speed'
+})
+export class SpeedPipe implements PipeTransform {
+  transform(value: number, ...args: any[]): any {
+    if (value === null) {
+      return null;
+    }
+    const k = 1024;
+    const dm = 2;
+    const sizes = ['B/s', 'KB/s', 'MB/s', 'GB/s', 'TB/s', 'PB/s', 'EB/s', 'ZB/s', 'YB/s'];
+    const i = Math.floor(Math.log(value) / Math.log(k));
+    return parseFloat((value / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
+  }
+}