Added the "state" property to the FeedListViewModel view model in the Feed framework.

Frameworks/Feed/Bundle/Sources/Logic/Enumerations/FeedListState.swift

@@ -0,0 +1,14 @@
+//
+//  FeedListState.swift
+//  ReviewsFeed
+//
+//  Created by Javier Cicchelli on 22/03/2024.
+//  Copyright © 2024 Röck+Cöde. All rights reserved.
+//
+
+enum FeedListState {
+    case empty
+    case error
+    case initial
+    case populated
+}

Frameworks/Feed/Bundle/Sources/Logic/View Models/FeedListViewModel.swift

@@ -24,6 +24,7 @@ extension FeedListViewController {
         @Published var isFilterEnabled: Bool = false
         @Published var isFiltering: Bool = false
         @Published var isLoading: Bool = false
+        @Published var state: FeedListState = .initial
 
         var items: [Review] = []
         var words: [TopWord] = []
@@ -88,11 +89,14 @@ extension FeedListViewController {
                     items = filter == .all
                         ? reviewsAll
                         : reviewsFiltered[filter] ?? []
-                    
+
                     isFilterEnabled = !items.isEmpty
+                    state = items.isEmpty
+                        ? .empty
+                        : .populated
                 } catch {
-                    // TODO: handle this error gracefully.
+                    items = []
-                    print("ERROR: \(error.localizedDescription)")
+                    state = .error
                 }
 
                 isLoading = false
@@ -111,7 +115,12 @@ extension FeedListViewController {
         }
         
         func item(for index: Int) -> Review? {
-            guard index < items.count else { return nil }
+            guard
+                !items.isEmpty,
+                index < items.count
+            else {
+                return nil
+            }
             
             return isWordsShowing
                 ? items[index - 1]

Reviews.xcodeproj/project.pbxproj

@@ -13,6 +13,7 @@
 		028134712BACC8CC0074AB4B /* FeedListConfiguration.swift in Sources */ = {isa = PBXBuildFile; fileRef = 028134702BACC8CC0074AB4B /* FeedListConfiguration.swift */; };
 		028134822BACCC780074AB4B /* FeedListCoordination.swift in Sources */ = {isa = PBXBuildFile; fileRef = 028134812BACCC770074AB4B /* FeedListCoordination.swift */; };
 		028134842BACD0B20074AB4B /* FeedItemCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 028134832BACD0B20074AB4B /* FeedItemCoordinator.swift */; };
+		028134882BAD01A60074AB4B /* FeedListState.swift in Sources */ = {isa = PBXBuildFile; fileRef = 028134872BAD01A60074AB4B /* FeedListState.swift */; };
 		0281348A2BAD08AB0074AB4B /* FeedUnavailableView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 028134892BAD08AB0074AB4B /* FeedUnavailableView.swift */; };
 		02909E792BAB6B0200710E14 /* FilterOption.swift in Sources */ = {isa = PBXBuildFile; fileRef = 02909E782BAB6B0200710E14 /* FilterOption.swift */; };
 		02909E7B2BAB6D2E00710E14 /* Bundle+Constants.swift in Sources */ = {isa = PBXBuildFile; fileRef = 02909E7A2BAB6D2E00710E14 /* Bundle+Constants.swift */; };
@@ -69,6 +70,7 @@
 		028134702BACC8CC0074AB4B /* FeedListConfiguration.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListConfiguration.swift; sourceTree = "<group>"; };
 		028134812BACCC770074AB4B /* FeedListCoordination.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListCoordination.swift; sourceTree = "<group>"; };
 		028134832BACD0B20074AB4B /* FeedItemCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedItemCoordinator.swift; sourceTree = "<group>"; };
+		028134872BAD01A60074AB4B /* FeedListState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListState.swift; sourceTree = "<group>"; };
 		028134892BAD08AB0074AB4B /* FeedUnavailableView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedUnavailableView.swift; sourceTree = "<group>"; };
 		02909E782BAB6B0200710E14 /* FilterOption.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FilterOption.swift; sourceTree = "<group>"; };
 		02909E7A2BAB6D2E00710E14 /* Bundle+Constants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Bundle+Constants.swift"; sourceTree = "<group>"; };
@@ -203,6 +205,7 @@
 		02909E772BAB6AD500710E14 /* Enumerations */ = {
 			isa = PBXGroup;
 			children = (
+				028134872BAD01A60074AB4B /* FeedListState.swift */,
 				02909E782BAB6B0200710E14 /* FilterOption.swift */,
 			);
 			path = Enumerations;
@@ -512,6 +515,7 @@
 				02EACF322BABB23A00FF8ECD /* TopWordsView.swift in Sources */,
 				028134712BACC8CC0074AB4B /* FeedListConfiguration.swift in Sources */,
 				028134822BACCC780074AB4B /* FeedListCoordination.swift in Sources */,
+				028134882BAD01A60074AB4B /* FeedListState.swift in Sources */,
 				02909E792BAB6B0200710E14 /* FilterOption.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;