models now handle authentication

Multiplatform/Shared/Add/Add Account Models/AddFeedlyViewModel.swift

@@ -0,0 +1,55 @@
+//
+//  AddFeedlyViewModel.swift
+//  Multiplatform macOS
+//
+//  Created by Stuart Breckenridge on 05/12/2020.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import SwiftUI
+import Account
+import RSCore
+import RSWeb
+import Secrets
+
+class AddFeedlyViewModel: ObservableObject, OAuthAccountAuthorizationOperationDelegate  {
+	@Published var isAuthenticating: Bool = false
+	@Published var accountUpdateError: AccountUpdateErrors = .none
+	@Published var showError: Bool = false
+	@Published var username: String = ""
+	@Published var password: String = ""
+	
+	func oauthAccountAuthorizationOperation(_ operation: OAuthAccountAuthorizationOperation, didCreate account: Account) {
+		
+		isAuthenticating = false
+		
+		// macOS only: `ASWebAuthenticationSession` leaves the browser in the foreground.
+		// Ensure the app is in the foreground so the user can see their Feedly account load.
+		#if os(macOS)
+		NSApplication.shared.activate(ignoringOtherApps: true)
+		#endif
+		
+		account.refreshAll { [weak self] result in
+			switch result {
+			case .success:
+				break
+			case .failure(let error):
+				self?.accountUpdateError = .other(error: error)
+				self?.showError = true
+			}
+		}
+	}
+	
+	func oauthAccountAuthorizationOperation(_ operation: OAuthAccountAuthorizationOperation, didFailWith error: Error) {
+		isAuthenticating = false
+		
+		// macOS only: `ASWebAuthenticationSession` leaves the browser in the foreground.
+		// Ensure the app is in the foreground so the user can see the error.
+		#if os(macOS)
+		NSApplication.shared.activate(ignoringOtherApps: true)
+		#endif
+		
+		accountUpdateError = .other(error: error)
+		showError = true
+	}
+}