persist last used filter to user defaults

apple/OmnivoreKit/Sources/App/Views/Home/HomeFeedViewIOS.swift

@@ -127,17 +127,21 @@ private let enableGrid = UIDevice.isIPad || FeatureFlag.enableGridCardsOnPhone
     var body: some View {
       VStack(spacing: 0) {
         SearchBar(searchTerm: $viewModel.searchTerm, isSearching: $isSearching)
-        
+
         ZStack(alignment: .bottom) {
           ScrollView(.horizontal, showsIndicators: false) {
             HStack {
               Menu(
                 content: {
                   ForEach(LinkedItemFilter.allCases, id: \.self) { filter in
-                    Button(filter.displayName, action: { viewModel.appliedFilter = filter })
+                    Button(filter.displayName, action: { viewModel.appliedFilter = filter.rawValue })
                   }
                 },
-                label: { TextChipButton.makeFilterButton(title: viewModel.appliedFilter.displayName) }
+                label: {
+                  TextChipButton.makeFilterButton(
+                    title: LinkedItemFilter(rawValue: viewModel.appliedFilter)?.displayName ?? "Filter"
+                  )
+                }
               )
               TextChipButton.makeAddLabelButton {
                 showLabelsSheet = true

apple/OmnivoreKit/Sources/App/Views/Home/HomeFeedViewModel.swift

@@ -18,7 +18,9 @@ import Views
   @Published var itemToSnoozeID: String?
   @Published var selectedLinkItem: LinkedItem?
   @Published var showLoadingBar = false
-  @Published var appliedFilter = LinkedItemFilter.inbox
+
+  @AppStorage(UserDefaultKey.lastSelectedLinkedItemFilter.rawValue)
+  var appliedFilter = LinkedItemFilter.inbox.rawValue
 
   var cursor: String?
 
@@ -89,7 +91,9 @@ import Views
       await dataService.viewContext.perform {
         let fetchRequest: NSFetchRequest<Models.LinkedItem> = LinkedItem.fetchRequest()
         fetchRequest.sortDescriptors = [NSSortDescriptor(keyPath: \LinkedItem.savedAt, ascending: false)]
-        fetchRequest.predicate = self.appliedFilter.predicate
+        if let predicate = LinkedItemFilter(rawValue: self.appliedFilter)?.predicate {
+          fetchRequest.predicate = predicate
+        }
 //        // TODO: Filter on label
 
         if let fetchedItems = try? dataService.viewContext.fetch(fetchRequest) {
@@ -141,7 +145,8 @@ import Views
   }
 
   private var searchQuery: String {
-    var query = "\(appliedFilter.queryString)"
+    let filter = LinkedItemFilter(rawValue: appliedFilter) ?? .inbox
+    var query = "\(filter.queryString)"
 
     if !searchTerm.isEmpty {
       query.append(" \(searchTerm)")

apple/OmnivoreKit/Sources/Models/LinkedItemFilter.swift

@@ -1,6 +1,6 @@
 import Foundation
 
-public enum LinkedItemFilter: CaseIterable {
+public enum LinkedItemFilter: String, CaseIterable {
   case inbox
   case all
   case archived

apple/OmnivoreKit/Sources/Utils/UserDefaultKeys.swift

@@ -5,4 +5,5 @@ public enum UserDefaultKey: String {
   case userHasDeniedPushPrimer
   case firebasePushToken
   case homeFeedlayoutPreference
+  case lastSelectedLinkedItemFilter
 }