Partially fixes #566

• Adds a preference to show alerts to confirm deletion of feeds (default is true) and this is configurable in Settings / Preferences

• Supports single (iOS/macOS) and multiple selection (macOS) for deletion

• Until folders are selectable (future beta, hopefully), selecting them for deletion is disabled.

Multiplatform/Shared/AppDefaults.swift

@@ -62,6 +62,9 @@ final class AppDefaults: ObservableObject {
 		static let timelineIconDimensions = "timelineIconDimensions"
 		static let timelineNumberOfLines = "timelineNumberOfLines"
 		
+		// Sidebar Defaults
+		static let sidebarConfirmDelete = "sidebarConfirmDelete"
+
 		// iOS Defaults
 		static let refreshClearsReadArticles = "refreshClearsReadArticles"
 		static let articleFullscreenAvailable = "articleFullscreenAvailable"
@@ -212,6 +215,14 @@ final class AppDefaults: ObservableObject {
 		}
 	}
 	
+	// MARK: Sidebar
+	@AppStorage(wrappedValue: true, Key.sidebarConfirmDelete, store: store) var sidebarConfirmDelete: Bool {
+		didSet {
+			objectWillChange.send()
+		}
+	}
+	
+	
 	// MARK: Refresh
 	@AppStorage(wrappedValue: false, Key.refreshClearsReadArticles, store: store) var refreshClearsReadArticles: Bool
 	

Multiplatform/Shared/Sidebar/SidebarContextMenu.swift

@@ -123,7 +123,12 @@ struct SidebarContextMenu: View {
 			}
 			Divider()
 			Button {
+				if AppDefaults.shared.sidebarConfirmDelete == false {
 					sidebarModel.deleteFromAccount.send(sidebarItem.feed!)
+				} else {
+					sidebarModel.sidebarItemToDelete = sidebarItem.feed!
+					sidebarModel.showDeleteConfirmation = true
+				}
 			} label: {
 				Text("Delete")
 				#if os(iOS)
@@ -153,15 +158,26 @@ struct SidebarContextMenu: View {
 				AppAssets.markAllAsReadImage
 				#endif
 			}
+			
+			/*
+				You cannot select folder level items in b4. Delete is disabled for the time being.
+			*/
+			/*
 			Divider()
 			Button {
+				if AppDefaults.shared.sidebarConfirmDelete == false {
 					sidebarModel.deleteFromAccount.send(sidebarItem.feed!)
+				} else {
+					sidebarModel.sidebarContextMenuItem = sidebarItem.feed
+					sidebarModel.showDeleteConfirmation = true
+				}
 			} label: {
 				Text("Delete")
 				#if os(iOS)
 				AppAssets.deleteImage
 				#endif
 			}
+			*/
 		}
 		
     }

Multiplatform/Shared/Sidebar/SidebarModel.swift

@@ -22,6 +22,7 @@ class SidebarModel: ObservableObject, UndoableCommandRunner {
 	@Published var selectedFeedIdentifier: FeedIdentifier? = .none
 	@Published var isReadFiltered = false
 	@Published var expandedContainers = SidebarExpandedContainers()
+	@Published var showDeleteConfirmation: Bool = false 
 	
 	weak var delegate: SidebarModelDelegate?
 
@@ -33,6 +34,8 @@ class SidebarModel: ObservableObject, UndoableCommandRunner {
 	var markAllAsReadInAccount = PassthroughSubject<Account, Never>()
 	var deleteFromAccount = PassthroughSubject<Feed, Never>()
 
+	var sidebarItemToDelete: Feed?
+	
 	private var cancellables = Set<AnyCancellable>()
 
 	var undoManager: UndoManager?
@@ -50,6 +53,37 @@ class SidebarModel: ObservableObject, UndoableCommandRunner {
 	
 }
 
+
+extension SidebarModel {
+	
+	func countOfFeedsToDelete() -> Int {
+		var selectedFeeds = selectedFeedIdentifiers
+		
+		if sidebarItemToDelete != nil {
+			selectedFeeds.insert(sidebarItemToDelete!.feedID!)
+		}
+		
+		return selectedFeeds.count
+	}
+	
+	
+	func namesOfFeedsToDelete() -> String {
+		var selectedFeeds = selectedFeedIdentifiers
+		
+		if sidebarItemToDelete != nil {
+			selectedFeeds.insert(sidebarItemToDelete!.feedID!)
+		}
+		
+		let feeds: [Feed] = selectedFeeds
+			.compactMap({ AccountManager.shared.existingFeed(with: $0) })
+		
+		return feeds
+			.map({ $0.nameForDisplay })
+			.joined(separator: ", ")
+	}
+	
+}
+
 // MARK: Private
 
 private extension SidebarModel {
@@ -57,11 +91,13 @@ private extension SidebarModel {
 	// MARK: Subscriptions
 	
 	func subscribeToSelectedFeedChanges() {
+		
 		let selectedFeedIdentifersPublisher = $selectedFeedIdentifiers
 			.map { [weak self] feedIDs -> [Feed] in
 				return feedIDs.compactMap { self?.findFeed($0) }
 			}
 			
+		
 		let selectedFeedIdentiferPublisher = $selectedFeedIdentifier
 			.compactMap { [weak self] feedID -> [Feed]? in
 				if let feedID = feedID, let feed = self?.findFeed(feedID) {
@@ -180,7 +216,19 @@ private extension SidebarModel {
 			.sink { feeds in
 				for feed in feeds {
 					if let webFeed = feed as? WebFeed {
-						webFeed.account?.removeWebFeed(webFeed)
+						guard let account = webFeed.account,
+							  let containerID = account.containerID,
+							  let container = AccountManager.shared.existingContainer(with: containerID) else {
+							return
+						}
+						account.removeWebFeed(webFeed, from: container, completion: { result in
+							switch result {
+							case .success:
+								break
+							case .failure(let err):
+								print(err)
+							}
+						})
 					}
 					if let folder = feed as? Folder {
 						folder.account?.removeFolder(folder) { _ in }
@@ -304,4 +352,6 @@ private extension SidebarModel {
 		selectedFeedIdentifier = feedID
 	}
 	
+	
+	
 }

Multiplatform/Shared/Sidebar/SidebarView.swift

@@ -62,6 +62,23 @@ struct SidebarView: View {
 				.transition(.move(edge: .bottom))
 			}
 		}
+		.alert(isPresented: $sidebarModel.showDeleteConfirmation, content: {
+			Alert(title: sidebarModel.countOfFeedsToDelete() > 1 ?
+							(Text("Delete multiple items?")) :
+							(Text("Delete \(sidebarModel.namesOfFeedsToDelete())?")),
+						 message: Text("Are you sure you wish to delete \(sidebarModel.namesOfFeedsToDelete())?"),
+				  primaryButton: .destructive(Text("Delete"),
+											  action: {
+												sidebarModel.deleteFromAccount.send(sidebarModel.sidebarItemToDelete!)
+												sidebarModel.sidebarItemToDelete = nil
+												sidebarModel.selectedFeedIdentifiers.removeAll()
+												sidebarModel.showDeleteConfirmation = false
+				  }),
+				  secondaryButton: .cancel(Text("Cancel"), action: {
+						sidebarModel.sidebarItemToDelete = nil
+						sidebarModel.showDeleteConfirmation = false
+				  }))
+		})
 		#else
 		ZStack(alignment: .top) {
 			List {
@@ -76,6 +93,23 @@ struct SidebarView: View {
 				ProgressView().offset(y: -40)
 			}
 		}
+		.alert(isPresented: $sidebarModel.showDeleteConfirmation, content: {
+			Alert(title: sidebarModel.countOfFeedsToDelete() > 1 ?
+							(Text("Delete multiple items?")) :
+							(Text("Delete \(sidebarModel.namesOfFeedsToDelete())?")),
+						 message: Text("Are you sure you wish to delete \(sidebarModel.namesOfFeedsToDelete())?"),
+				  primaryButton: .destructive(Text("Delete"),
+											  action: {
+												sidebarModel.deleteFromAccount.send(sidebarModel.sidebarItemToDelete!)
+												sidebarModel.sidebarItemToDelete = nil
+												sidebarModel.selectedFeedIdentifiers.removeAll()
+												sidebarModel.showDeleteConfirmation = false
+				  }),
+				  secondaryButton: .cancel(Text("Cancel"), action: {
+						sidebarModel.sidebarItemToDelete = nil
+						sidebarModel.showDeleteConfirmation = false
+				  }))
+		})
 		#endif
 		
 //		.onAppear {

Multiplatform/iOS/Settings/SettingsView.swift

@@ -26,6 +26,7 @@ struct SettingsView: View {
 				systemSettings
 				accounts
 				importExport
+				sidebarFeedManagement
 				timeline
 				articles
 				appearance
@@ -143,6 +144,12 @@ struct SettingsView: View {
 		.navigationBarTitle("Export Subscriptions", displayMode: .inline)
 	}
 	
+	var sidebarFeedManagement: some View {
+		Section(header: Text("Feed Management")) {
+			Toggle("Confirm When Deleting Feeds and Folders", isOn: $settings.sidebarConfirmDelete)
+		}.toggleStyle(SwitchToggleStyle(tint: .accentColor))
+	}
+	
 	var timeline: some View {
 		Section(header: Text("Timeline"), content: {
 			Toggle("Sort Oldest to Newest", isOn: $settings.timelineSortDirection)

Multiplatform/macOS/Preferences/Preference Panes/General/GeneralPreferencesView.swift

@@ -35,6 +35,7 @@ struct GeneralPreferencesView: View {
 				})
 			})
 			
+			Toggle("Confirm when deleting feeds and folders", isOn: $defaults.sidebarConfirmDelete)
 			
 			Toggle("Open webpages in background in browser", isOn: $defaults.openInBrowserInBackground)