quick cleanup

setup-wizard/src/app/services/state.service.ts

@@ -0,0 +1,51 @@
+import { Injectable } from "@angular/core";
+import { ApiService } from "./api/api.service"
+
+@Injectable({
+  providedIn: 'root'
+})
+export class StateService {
+  loading = true
+
+  selectedDataDrive: string
+  recoveryDrive: string
+  hasPassword: Boolean
+  dataTransferProgress: { bytesTransfered: number, totalBytes: number } | null
+  dataProgress = 0
+
+  constructor (
+    private readonly apiService: ApiService
+  ) {}
+
+  async getState () {
+    const state = await this.apiService.getState()
+    if(state) {
+      this.selectedDataDrive = state['selected-data-drive']
+      this.recoveryDrive = state['recovery-drive']
+      this.hasPassword = state['has-password']
+  
+      this.loading = false
+    }
+  }
+
+  async pollDataTransferProgress () {
+    if (
+      this.dataTransferProgress?.totalBytes && 
+      this.dataTransferProgress.bytesTransfered === this.dataTransferProgress.totalBytes
+    ) {return }
+    const progress = await this.apiService.getDataTransferProgress()
+    this.dataTransferProgress = {
+      bytesTransfered: progress['bytes-transfered'],
+      totalBytes: progress['total-bytes']
+    }
+    if (this.dataTransferProgress.totalBytes) {
+      this.dataProgress = this.dataTransferProgress.bytesTransfered / this.dataTransferProgress.totalBytes
+    }
+    await pauseFor(7000)
+    this.pollDataTransferProgress()
+  }
+}
+
+export function pauseFor (ms: number): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}