Logout of all accounts (IOS-245)

Mastodon/Scene/Account/AccountViewController.swift

@@ -174,8 +174,26 @@ extension AccountListViewController: UITableViewDelegate {
             // TODO: add dismiss entry for welcome scene
             _ = coordinator.present(scene: .welcome, from: self, transition: .modal(animated: true, completion: nil))
         case .logoutOfAllAccounts:
-            //TODO: Show alert with "Logout of all Accounts", "Cancel"
-            break
+            let alert = UIAlertController(title: nil, message: nil, preferredStyle: .alert)
+
+            //TODO: Localization
+            let logoutAction = UIAlertAction(title: "Log Out Of All Accounts", style: .destructive) { _ in
+                Task { @MainActor in
+                    self.coordinator.showLoading()
+                    for authenticationBox in self.context.authenticationService.mastodonAuthenticationBoxes {
+                        try? await self.context.authenticationService.signOutMastodonUser(authenticationBox: authenticationBox)
+                    }
+                    self.coordinator.hideLoading()
+
+                    self.coordinator.setup()
+                }
+            }
+
+            alert.addAction(logoutAction)
+
+            let cancelAction = UIAlertAction(title: "Cancel", style: .default)
+            alert.addAction(cancelAction)
+            present(alert, animated: true)
         }
     }
 }

Mastodon/Scene/Account/Cell/LogoutOfAllAccountsCell.swift

@@ -6,12 +6,10 @@
 //
 
 import UIKit
-import Combine
 import MetaTextKit
 import MastodonAsset
 import MastodonLocalization
 import MastodonCore
-import MastodonUI
 
 final class LogoutOfAllAccountsCell: UITableViewCell {
 

MastodonSDK/Sources/MastodonCore/Service/AuthenticationService.swift

@@ -137,22 +137,6 @@ extension AuthenticationService {
     }
     
     public func signOutMastodonUser(authenticationBox: MastodonAuthenticationBox) async throws {
-        let managedObjectContext = backgroundManagedObjectContext
-        try await managedObjectContext.performChanges {
-            // remove Feed
-            let request = Feed.sortedFetchRequest
-            request.predicate = Feed.predicate(
-                acct: .mastodon(
-                    domain: authenticationBox.domain,
-                    userID: authenticationBox.userID
-                )
-            )
-            let feeds = managedObjectContext.safeFetch(request)
-            for feed in feeds {
-                managedObjectContext.delete(feed)
-            }
-        }
-        
         do {
             try AuthenticationServiceProvider.shared.delete(authentication: authenticationBox.authentication)
         } catch {