feat: favorites sync and UI polish\n\n- Wire shared FavoritesManager across Home and Favorites\n- Add heart overlays on Home cards and detail view\n- Style ProductDetail price capsule, brand gradient, richer description\n- Fix duplicate FavoritesManager by renaming alt class to FavoritesStore and import Combine\n- Minor tab/menu/header consistency, (#3)

Author: byKosta

Kix/Features/Auth/ContentView.swift

@@ -13,6 +13,9 @@ struct AuthRouterView: View {
 }
 
 #Preview {
+    // Preview excludes FavoritesManager due to duplicate type definitions causing ambiguous init().
+    // To re-enable, deduplicate FavoritesManager.swift files in the project and then add:
+    // .environmentObject(FavoritesManager())
     AuthRouterView()
         .environmentObject(AppState())
         .environmentObject(AuthViewModel())

Kix/Features/Auth/FavoritesManager 2.swift

@@ -0,0 +1,54 @@
+import Foundation
+import SwiftUI
+import Combine
+
+final class FavoritesStore: ObservableObject {
+    @Published private(set) var favoriteIDs: Set<UUID> = [] {
+        didSet { persist() }
+    }
+    
+    @Published var favorites: [Product] = []
+    
+    private let storageKey = "favorites_ids"
+    
+    init() {
+        load()
+        rebuildFavorites()
+    }
+    
+    func isFavorite(_ product: Product) -> Bool {
+        favoriteIDs.contains(product.id)
+    }
+    
+    func toggleFavorite(_ product: Product) {
+        if favoriteIDs.contains(product.id) {
+            favoriteIDs.remove(product.id)
+        } else {
+            favoriteIDs.insert(product.id)
+        }
+        rebuildFavorites()
+    }
+    
+    private func rebuildFavorites() {
+        // Compose favorites list from MockData and any dynamic products by matching IDs
+        let all = MockData.products
+        let selected = all.filter { favoriteIDs.contains($0.id) }
+        // Ensure isFavorite flag reflects manager state
+        favorites = selected.map { prod in
+            var p = prod
+            p.isFavorite = true
+            return p
+        }
+    }
+    
+    private func persist() {
+        let ids = favoriteIDs.map { $0.uuidString }
+        UserDefaults.standard.set(ids, forKey: storageKey)
+    }
+    
+    private func load() {
+        if let ids = UserDefaults.standard.array(forKey: storageKey) as? [String] {
+            favoriteIDs = Set(ids.compactMap { UUID(uuidString: $0) })
+        }
+    }
+}

Kix/Features/Favorites/FavoritesView.swift

@@ -1,8 +1,7 @@
 import SwiftUI
 
 struct FavoritesView: View {
-    // Revert to local state to avoid missing EnvironmentObject crashes
-    @StateObject private var favoritesManager = FavoritesManager()
+    @EnvironmentObject var favoritesManager: FavoritesManager
     @State private var selectedProduct: Product? = nil
 
     var body: some View {
@@ -20,7 +19,7 @@ struct FavoritesView: View {
                         )
                     )
                     .padding(.top, 24)
-                    .accessibilityIdentifier("favorites_header")
+                    .accessibilityIdentifier("favorites_title")
 
                 if favoritesManager.favorites.isEmpty {
                     // Empty state message centered
@@ -86,8 +85,6 @@ struct FavoritesView: View {
                 }
             }
         }
-        // Inject environment object so children like ProductCard can access it
-        .environmentObject(favoritesManager)
     }
 }
 

Kix/Features/Home/HomeView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct HomeView: View {
     @State private var products: [Product] = MockData.products
+    @EnvironmentObject var appState: AppState
     // Brand gradient (purple → blue) with subtle green accents in cards
     let brandGradient = LinearGradient(colors: [.purple, .blue], startPoint: .leading, endPoint: .trailing)
 
@@ -52,6 +53,7 @@ struct HomeView: View {
                                 )
                                 .padding(.horizontal)
                                 .accessibilityIdentifier("home_product_card_\(product.id.uuidString)")
+                                .environmentObject(appState.favoritesManager)
                             }
                         }
                         .padding(.top, 10)
@@ -70,6 +72,8 @@ struct NewProductCard: View {
     var onEdit: (Product) -> Void
     var onDelete: () -> Void
 
+    @EnvironmentObject private var favoritesManager: FavoritesManager
+
     @State private var isPressed = false
     @State private var showMenu = false
     @State private var showDeleteConfirm = false
@@ -118,9 +122,9 @@ struct NewProductCard: View {
                 VStack {
                     HStack {
                         Spacer()
-                        Button(action: { /* toggle local favorite if needed */ }) {
-                            Image(systemName: product.isFavorite ? "heart.fill" : "heart")
-                                .foregroundColor(product.isFavorite ? .red : .gray)
+                        Button(action: { favoritesManager.toggleFavorite(product) }) {
+                            Image(systemName: favoritesManager.isFavorite(product) ? "heart.fill" : "heart")
+                                .foregroundColor(favoritesManager.isFavorite(product) ? .pink : .gray)
                                 .padding(8)
                                 .background(Color.white)
                                 .clipShape(Circle())

Kix/Features/Home/ProductCard.swift

@@ -2,12 +2,7 @@ import SwiftUI
 
 struct ProductCard: View {
     let product: Product
-    @State private var isFavorite: Bool
-    
-    init(product: Product) {
-        self.product = product
-        self._isFavorite = State(initialValue: product.isFavorite)
-    }
+    @EnvironmentObject private var favoritesManager: FavoritesManager
 
     var body: some View {
         VStack(alignment: .leading, spacing: 12) {
@@ -37,11 +32,10 @@ struct ProductCard: View {
                 .frame(height: 180)
                 .cornerRadius(16)
                 Button(action: {
-                    isFavorite.toggle()
-                    // TODO: Update favorite state in model/service
+                    favoritesManager.toggleFavorite(product)
                 }) {
-                    Image(systemName: isFavorite ? "heart.fill" : "heart")
-                        .foregroundColor(isFavorite ? .red : .gray)
+                    Image(systemName: favoritesManager.isFavorite(product) ? "heart.fill" : "heart")
+                        .foregroundColor(favoritesManager.isFavorite(product) ? .pink : .gray)
                         .padding(8)
                         .background(Color.white.opacity(0.7))
                         .clipShape(Circle())

Kix/Navigation/MainTabView.swift

@@ -6,11 +6,13 @@ class TabSelection: ObservableObject {
 }
 
 struct MainTabView: View {
+    @EnvironmentObject var appState: AppState
     @StateObject private var tabSelection = TabSelection()
 
     var body: some View {
         TabView(selection: $tabSelection.selectedTab) {
             HomeView()
+                .environmentObject(appState.favoritesManager)
                 .tabItem {
                     Label("Home", systemImage: tabSelection.selectedTab == 0 ? "house.fill" : "house")
                 }
@@ -26,6 +28,7 @@ struct MainTabView: View {
                 .accessibilityIdentifier("tab_notes")
 
             FavoritesView()
+                .environmentObject(appState.favoritesManager)
                 .tabItem {
                     Label("Favorites", systemImage: tabSelection.selectedTab == 2 ? "heart.fill" : "heart")
                 }