setup wizard first draft

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

@@ -0,0 +1,37 @@
+import { Subject } from "rxjs";
+
+export abstract class ApiService {
+  protected error$: Subject<string> = new Subject()
+  watchError$ = this.error$.asObservable()
+  abstract getState (): Promise<State> 
+  abstract getStorageDisks (): Promise<StorageDisk[]>
+  abstract selectStorageDisk (disk: { logicalName: string }): Promise<void>
+  abstract getEmbassyDrives (): Promise<EmbassyDrive[]>
+  abstract selectEmbassyDrive (disk: { logicalName: string }): Promise<void>
+  abstract getDataTransferProgress () : Promise<TransferProgress>
+  abstract submitPassword (password: string) : Promise<void>
+}
+
+export interface State {
+  'selected-data-drive': string | null,
+  'recovery-drive': string | null,
+  'has-password': boolean,
+}
+
+export interface TransferProgress {
+  'bytes-transfered': number
+  'total-bytes': number
+}
+
+export interface StorageDisk {
+  "logical-name": string
+  labels: string[]
+  capacity: number
+  used: number
+}
+
+export interface EmbassyDrive {
+  "logical-name": string
+  version: string
+  name: string
+}