models now handle authentication

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

@@ -0,0 +1,121 @@
+//
+//  AddReaderAPIViewModel.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 AddReaderAPIViewModel: ObservableObject {
+	@Published var isAuthenticating: Bool = false
+	@Published var accountUpdateError: AccountUpdateErrors = .none
+	@Published var showError: Bool = false
+	@Published var username: String = ""
+	@Published var password: String = ""
+	@Published var apiUrl: String = ""
+	@Published var canDismiss: Bool = false
+	
+	func authenticateReaderAccount(_ accountType: AccountType) {
+		isAuthenticating = true
+		
+		let credentials = Credentials(type: .readerBasic, username: username, secret: password)
+		
+		if accountType == .freshRSS {
+			Account.validateCredentials(type: accountType, credentials: credentials, endpoint: URL(string: apiUrl)!) { result in
+				
+				self.isAuthenticating = false
+				
+				switch result {
+				case .success(let validatedCredentials):
+					
+					guard let validatedCredentials = validatedCredentials else {
+						self.accountUpdateError = .invalidUsernamePassword
+						self.showError = true
+						return
+					}
+					
+					let account = AccountManager.shared.createAccount(type: .freshRSS)
+					
+					do {
+						try account.removeCredentials(type: .readerBasic)
+						try account.removeCredentials(type: .readerAPIKey)
+						try account.storeCredentials(credentials)
+						try account.storeCredentials(validatedCredentials)
+						self.canDismiss = true
+						account.refreshAll(completion: { result in
+							switch result {
+							case .success:
+								break
+							case .failure(let error):
+								self.accountUpdateError = .other(error: error)
+								self.showError = true
+							}
+						})
+						
+					} catch {
+						self.accountUpdateError = .keyChainError
+						self.showError = true
+					}
+					
+				case .failure:
+					self.accountUpdateError = .networkError
+					self.showError = true
+				}
+			}
+		}
+		
+		else {
+			
+			Account.validateCredentials(type: accountType, credentials: credentials) { result in
+				
+				self.isAuthenticating = false
+				
+				switch result {
+				case .success(let validatedCredentials):
+					
+					guard let validatedCredentials = validatedCredentials else {
+						self.accountUpdateError = .invalidUsernamePassword
+						self.showError = true
+						return
+					}
+					
+					let account = AccountManager.shared.createAccount(type: .freshRSS)
+					
+					do {
+						try account.removeCredentials(type: .readerBasic)
+						try account.removeCredentials(type: .readerAPIKey)
+						try account.storeCredentials(credentials)
+						try account.storeCredentials(validatedCredentials)
+						self.canDismiss = true
+						account.refreshAll(completion: { result in
+							switch result {
+							case .success:
+								break
+							case .failure(let error):
+								self.accountUpdateError = .other(error: error)
+								self.showError = true
+							}
+						})
+						
+					} catch {
+						self.accountUpdateError = .keyChainError
+						self.showError = true
+					}
+					
+				case .failure:
+					self.accountUpdateError = .networkError
+					self.showError = true
+				}
+			}
+			
+		}
+		
+	}
+	
+}