Initial settings, download UI, various bugfixes

src/app/core/services/download.service.ts

@@ -1,9 +1,24 @@
-import { Injectable } from '@angular/core'
+import { Injectable, EventEmitter } from '@angular/core'
+import { ElectronService } from './electron.service'
+import { Download, NewDownload } from '../../../electron/shared/interfaces/download.interface'
 
 @Injectable({
   providedIn: 'root'
 })
 export class DownloadService {
 
-  constructor() { }
+  private downloadUpdatedEmitter = new EventEmitter<Download>()
+
+  constructor(private electronService: ElectronService) { }
+
+  addDownload(newDownload: NewDownload) {
+    this.electronService.receiveIPC('download-updated', result => {
+      this.downloadUpdatedEmitter.emit(result)
+    })
+    this.electronService.sendIPC('add-download', newDownload)
+  }
+
+  onDownloadUpdated(callback: (download: Download) => void) {
+    this.downloadUpdatedEmitter.subscribe(callback)
+  }
 }