[Local catalog] Catalog Needs Refreshing Warning

Modules/Sources/PointOfSale/Models/PointOfSaleAggregateModel.swift

@@ -60,6 +60,7 @@ protocol PointOfSaleAggregateModelProtocol {
     private var cardReaderDisconnection: AnyCancellable?
 
     private let soundPlayer: PointOfSaleSoundPlayerProtocol
+    private let isLocalCatalogEligible: Bool
 
     private var cancellables: Set<AnyCancellable> = []
 
@@ -76,6 +77,18 @@ protocol PointOfSaleAggregateModelProtocol {
         _viewStateCoordinator
     }
 
+    // Track stale sync warning (only relevant when using local catalog)
+    var isSyncStale: Bool = false
+    var isStaleSyncWarningDismissed: Bool = false
+
+    var showStaleSyncWarning: Bool {
+        // Only show warning if using local catalog
+        guard isLocalCatalogEligible else {
+            return false
+        }
+        return isSyncStale && !isStaleSyncWarningDismissed
+    }
+
     init(entryPointController: POSEntryPointController,
          itemsController: PointOfSaleItemsControllerProtocol,
          purchasableItemsSearchController: PointOfSaleSearchingItemsControllerProtocol,
@@ -92,7 +105,8 @@ protocol PointOfSaleAggregateModelProtocol {
          soundPlayer: PointOfSaleSoundPlayerProtocol = PointOfSaleSoundPlayer(),
          paymentState: PointOfSalePaymentState = .idle,
          siteID: Int64,
-         catalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol? = nil) {
+         catalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol? = nil,
+         isLocalCatalogEligible: Bool = false) {
         self.entryPointController = entryPointController
         self.purchasableItemsController = itemsController
         self.purchasableItemsSearchController = purchasableItemsSearchController
@@ -110,6 +124,7 @@ protocol PointOfSaleAggregateModelProtocol {
         self.soundPlayer = soundPlayer
         self.siteID = siteID
         self.catalogSyncCoordinator = catalogSyncCoordinator
+        self.isLocalCatalogEligible = isLocalCatalogEligible
 
         publishCardReaderConnectionStatus()
         publishPaymentMessages()
@@ -632,6 +647,28 @@ private extension PointOfSaleAggregateModel {
     }
 }
 
+// MARK: - Stale Sync Warning
+extension PointOfSaleAggregateModel {
+    var staleSyncThresholdDays: Int {
+        Constants.staleSyncThresholdDays
+    }
+
+    func dismissStaleSyncWarning() {
+        isStaleSyncWarningDismissed = true
+    }
+
+    func checkStaleSyncStatus() async {
+        guard let catalogSyncCoordinator else { return }
+        isSyncStale = await catalogSyncCoordinator.isSyncStale(for: siteID, maxDays: Constants.staleSyncThresholdDays)
+    }
+}
+
+// MARK: - Constants
+private enum Constants {
+    /// Number of days before showing a stale catalog sync warning
+    static let staleSyncThresholdDays: Int = 7
+}
+
 #if DEBUG
 extension PointOfSaleAggregateModel {
     func setPreviewState(paymentState: PointOfSalePaymentState, inlineMessage: PointOfSaleCardPresentPaymentMessageType?) {

Modules/Sources/PointOfSale/Presentation/ItemListView.swift

@@ -161,20 +161,49 @@ struct ItemListView: View {
 
     @ViewBuilder
     private func listView(itemListType: ItemListType) -> some View {
-        ItemList(
-            itemsController: itemsController(itemListType),
-            node: .root,
-            itemActionHandler: actionHandler(itemListType),
-            willLoadMore: {
-                analyticsTracker.trackNextPageWillLoad()
+        VStack(spacing: 0) {
+            // Stale sync warning banner
+            if posModel.showStaleSyncWarning {
+                staleSyncWarningBanner
+                    .padding(.horizontal, POSPadding.medium)
+                    .padding(.vertical, POSPadding.small)
+                    .transition(.move(edge: .top).combined(with: .opacity))
             }
-        )
-        .refreshable {
-            analyticsTracker.trackRefresh()
-            await itemsController(itemListType).refreshItems(base: .root)
+
+            ItemList(
+                itemsController: itemsController(itemListType),
+                node: .root,
+                itemActionHandler: actionHandler(itemListType),
+                willLoadMore: {
+                    analyticsTracker.trackNextPageWillLoad()
+                }
+            )
+            .refreshable {
+                analyticsTracker.trackRefresh()
+                await itemsController(itemListType).refreshItems(base: .root)
+            }
+        }
+        .task {
+            // Check stale sync status when view appears
+            await posModel.checkStaleSyncStatus()
         }
     }
 
+    @ViewBuilder
+    private var staleSyncWarningBanner: some View {
+        POSNoticeView(
+            title: Localization.staleSyncWarningTitle,
+            icon: Image(systemName: "info.circle"),
+            onDismiss: {
+                withAnimation {
+                    posModel.dismissStaleSyncWarning()
+                }
+            }, content: {
+                Text(Localization.staleSyncWarningDescription(days: posModel.staleSyncThresholdDays))
+                    .font(POSFontStyle.posBodyMediumRegular())
+            })
+    }
+
     private func actionHandler(_ itemListType: ItemListType) -> POSItemActionHandler {
         POSItemActionHandlerFactory.itemActionHandler(
             itemListType: itemListType,
@@ -400,6 +429,22 @@ private extension ItemListView {
             value: "Coupons",
             comment: "Title of the button at the top of Point of Sale to switch to Coupons list."
         )
+
+        static let staleSyncWarningTitle = NSLocalizedString(
+            "pos.itemlistview.staleSyncWarning.title",
+            value: "Refresh catalog",
+            comment: "Warning title shown when the product catalog hasn't synced in several days"
+        )
+
+        static let staleSyncWarningDescriptionFormat = NSLocalizedString(
+            "pos.itemlistview.staleSyncWarning.description",
+            value: "The catalog hasn't been synced in the last %1$ld days. Please ensure you're connected to the internet and sync again in POS Settings.",
+            comment: "Message shown when the product catalog hasn't synced in the specified number of days. %1$ld is the number of days. Reads like: The catalog hasn't been synced in the last 7 days."
+        )
+
+        static func staleSyncWarningDescription(days: Int) -> String {
+            String.localizedStringWithFormat(staleSyncWarningDescriptionFormat, days)
+        }
     }
 }
 

Modules/Sources/PointOfSale/Presentation/PointOfSaleEntryPointView.swift

@@ -42,6 +42,7 @@ public struct PointOfSaleEntryPointView: View {
     private let services: POSDependencyProviding
     private let siteID: Int64
     private let catalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol?
+    private let isLocalCatalogEligible: Bool
 
     /// periphery: ignore - public in preparation of move to POS module
     public init(siteID: Int64,
@@ -132,6 +133,7 @@ public struct PointOfSaleEntryPointView: View {
         self.services = services
         self.siteID = siteID
         self.catalogSyncCoordinator = catalogSyncCoordinator
+        self.isLocalCatalogEligible = isLocalCatalogEligible
     }
 
     public var body: some View {
@@ -162,7 +164,8 @@ public struct PointOfSaleEntryPointView: View {
                 popularPurchasableItemsController: popularPurchasableItemsController,
                 barcodeScanService: barcodeScanService,
                 siteID: siteID,
-                catalogSyncCoordinator: catalogSyncCoordinator)
+                catalogSyncCoordinator: catalogSyncCoordinator,
+                isLocalCatalogEligible: isLocalCatalogEligible)
         }
         .environment(\.posAnalytics, services.analytics)
         .environment(\.posCurrencyProvider, services.currency)

Modules/Sources/PointOfSale/Utils/PreviewHelpers.swift

@@ -217,7 +217,8 @@ struct POSPreviewHelpers {
         barcodeScanService: PointOfSaleBarcodeScanServiceProtocol = PointOfSalePreviewBarcodeScanService(),
         analytics: POSAnalyticsProviding = EmptyPOSAnalytics(),
         siteID: Int64 = 1,
-        catalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol? = nil
+        catalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol? = nil,
+        isLocalCatalogEligible: Bool = false
     ) -> PointOfSaleAggregateModel {
         return PointOfSaleAggregateModel(
             entryPointController: POSEntryPointController(eligibilityChecker: PointOfSalePreviewTabEligibilityChecker()),
@@ -234,7 +235,8 @@ struct POSPreviewHelpers {
             popularPurchasableItemsController: popularItemsController,
             barcodeScanService: barcodeScanService,
             siteID: siteID,
-            catalogSyncCoordinator: catalogSyncCoordinator
+            catalogSyncCoordinator: catalogSyncCoordinator,
+            isLocalCatalogEligible: isLocalCatalogEligible
         )
     }
 
@@ -635,6 +637,10 @@ final class POSPreviewCatalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol
     func loadLastFullSyncState(for siteID: Int64) async -> POSCatalogSyncState {
         return fullSyncStateModel.state[siteID] ?? .syncCompleted(siteID: siteID)
     }
+
+    func isSyncStale(for siteID: Int64, maxDays: Int) async -> Bool {
+        return false
+    }
 }
 
 #endif

Modules/Sources/Yosemite/Tools/POS/POSCatalogSyncCoordinator.swift

@@ -34,6 +34,13 @@ public protocol POSCatalogSyncCoordinatorProtocol {
     /// Returns the last known full sync state for a site
     /// If no state is cached, determines state from lastSyncDate
     func loadLastFullSyncState(for siteID: Int64) async -> POSCatalogSyncState
+
+    /// Checks if the last sync is older than the specified number of days
+    /// - Parameters:
+    ///   - siteID: The site ID to check
+    ///   - maxDays: Maximum number of days before a sync is considered stale
+    /// - Returns: True if the last sync is older than the specified days or if there has been no sync
+    func isSyncStale(for siteID: Int64, maxDays: Int) async -> Bool
 }
 
 public extension POSCatalogSyncCoordinatorProtocol {
@@ -305,6 +312,21 @@ public actor POSCatalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol {
         fullSyncStateModel.state[siteID] = state
         return state
     }
+
+    public func isSyncStale(for siteID: Int64, maxDays: Int) async -> Bool {
+        // Check only the last full sync date, incremental syncs don't refresh well enough to consider non-stale.
+        guard let lastFullSync = await lastFullSyncDate(for: siteID) else {
+            // If we've never done a full sync, we're stale.
+            return true
+        }
+
+        guard let thresholdDate = Calendar.current.date(byAdding: .day, value: -maxDays, to: Date()) else {
+            // This shouldn't fail, and if it does, we can assume the catalog is fine
+            return false
+        }
+
+        return lastFullSync < thresholdDate
+    }
 }
 
 // MARK: - Syncing State

Modules/Tests/PointOfSaleTests/Mocks/MockPOSCatalogSyncCoordinator.swift

@@ -68,4 +68,10 @@ final class MockPOSCatalogSyncCoordinator: POSCatalogSyncCoordinatorProtocol {
     func loadLastFullSyncState(for siteID: Int64) async -> POSCatalogSyncState {
         return fullSyncStateModel.state[siteID] ?? .syncNeverDone(siteID: siteID)
     }
+
+    var isSyncStaleResult: Bool = false
+
+    func isSyncStale(for siteID: Int64, maxDays: Int) async -> Bool {
+        return isSyncStaleResult
+    }
 }

Modules/Tests/YosemiteTests/Tools/POS/POSCatalogSyncCoordinatorTests.swift

@@ -860,4 +860,78 @@ extension POSCatalogSyncCoordinatorTests {
         // Then - sync should proceed (exactly at 30-day boundary is still eligible)
         #expect(mockIncrementalSyncService.startIncrementalSyncCallCount == 1)
     }
+
+    // MARK: - isSyncStale Tests
+
+    @Test func test_isSyncStale_returns_true_when_no_full_sync_performed() async throws {
+        // Given - no full sync date set
+
+        // When
+        let isStale = await sut.isSyncStale(for: sampleSiteID, maxDays: 7)
+
+        // Then
+        #expect(isStale == true)
+    }
+
+    @Test func test_isSyncStale_returns_false_when_full_sync_is_recent() async throws {
+        // Given - last full sync was 3 days ago
+        let threeDaysAgo = Calendar.current.date(byAdding: .day, value: -3, to: Date())!
+        try createSiteInDatabase(siteID: sampleSiteID, lastFullSyncDate: threeDaysAgo)
+
+        // When
+        let isStale = await sut.isSyncStale(for: sampleSiteID, maxDays: 7)
+
+        // Then
+        #expect(isStale == false)
+    }
+
+    @Test func test_isSyncStale_returns_true_when_full_sync_is_old() async throws {
+        // Given - last full sync was 10 days ago
+        let tenDaysAgo = Calendar.current.date(byAdding: .day, value: -10, to: Date())!
+        try createSiteInDatabase(siteID: sampleSiteID, lastFullSyncDate: tenDaysAgo)
+
+        // When
+        let isStale = await sut.isSyncStale(for: sampleSiteID, maxDays: 7)
+
+        // Then
+        #expect(isStale == true)
+    }
+
+    @Test func test_isSyncStale_ignores_incremental_sync_date() async throws {
+        // Given - incremental sync was recent, but full sync was old
+        let yesterday = Calendar.current.date(byAdding: .day, value: -1, to: Date())!
+        let tenDaysAgo = Calendar.current.date(byAdding: .day, value: -10, to: Date())!
+        try createSiteInDatabase(siteID: sampleSiteID, lastFullSyncDate: tenDaysAgo, lastIncrementalSyncDate: yesterday)
+
+        // When
+        let isStale = await sut.isSyncStale(for: sampleSiteID, maxDays: 7)
+
+        // Then - should only check full sync date
+        #expect(isStale == true)
+    }
+
+    @Test func test_isSyncStale_boundary_within_threshold() async throws {
+        // Given - last full sync was 6 days and 23 hours ago (just under 7 days)
+        let justUnderSevenDays = Calendar.current.date(byAdding: .day, value: -6, to: Date())!
+            .addingTimeInterval(-23 * 60 * 60) // minus 23 hours
+        try createSiteInDatabase(siteID: sampleSiteID, lastFullSyncDate: justUnderSevenDays)
+
+        // When
+        let isStale = await sut.isSyncStale(for: sampleSiteID, maxDays: 7)
+
+        // Then - just under threshold should not be stale
+        #expect(isStale == false)
+    }
+
+    @Test func test_isSyncStale_boundary_past_threshold() async throws {
+        // Given - last full sync was 8 days ago (clearly past 7 days)
+        let eightDaysAgo = Calendar.current.date(byAdding: .day, value: -8, to: Date())!
+        try createSiteInDatabase(siteID: sampleSiteID, lastFullSyncDate: eightDaysAgo)
+
+        // When
+        let isStale = await sut.isSyncStale(for: sampleSiteID, maxDays: 7)
+
+        // Then - past threshold should be stale
+        #expect(isStale == true)
+    }
 }

WooCommerce/WooCommerceTests/Tools/ForegroundPOSCatalogSyncDispatcherTests.swift

@@ -297,4 +297,8 @@ private final class MockPOSCatalogSyncCoordinator: POSCatalogSyncCoordinatorProt
     func loadLastFullSyncState(for siteID: Int64) async -> POSCatalogSyncState {
         return fullSyncStateModel.state[siteID] ?? .syncNeverDone(siteID: siteID)
     }
+
+    func isSyncStale(for siteID: Int64, maxDays: Int) async -> Bool {
+        return false
+    }
 }