Empty Stats: Stay on insights tab if Grow Audience card is showing

WordPress/Classes/Utility/ContentCoordinator.swift

@@ -70,13 +70,17 @@ struct DefaultContentCoordinator: ContentCoordinator {
     }
 
     private func setTimePeriodForStatsURLIfPossible(_ url: URL) {
+        guard let key = SiteStatsDashboardViewController.lastSelectedStatsPeriodTypeKey else {
+            return
+        }
+
         let matcher = RouteMatcher(routes: UniversalLinkRouter.statsRoutes)
         let matches = matcher.routesMatching(url)
         if let match = matches.first,
            let action = match.action as? StatsRoute,
            let timePeriod = action.timePeriod {
             // Initializing a StatsPeriodType to ensure we have a valid period
-            UserDefaults.standard.set(timePeriod.rawValue, forKey: SiteStatsDashboardViewController.lastSelectedStatsPeriodTypeKey)
+            UserDefaults.standard.set(timePeriod.rawValue, forKey: key)
         }
     }
 

WordPress/Classes/ViewRelated/Stats/Insights/SiteStatsInsightsTableViewController.swift

@@ -5,6 +5,9 @@ class SiteStatsInsightsTableViewController: UITableViewController, StoryboardLoa
     static var defaultStoryboardName: String = "SiteStatsDashboard"
 
     // MARK: - Properties
+    var isGrowAudienceShowing: Bool {
+        return insightsToShow.contains(.growAudience)
+    }
 
     private var insightsChangeReceipt: Receipt?
 

WordPress/Classes/ViewRelated/Stats/SiteStatsDashboardViewController.swift

@@ -52,7 +52,13 @@ fileprivate extension StatsPeriodType {
 
 class SiteStatsDashboardViewController: UIViewController {
 
-    static let lastSelectedStatsPeriodTypeKey = "LastSelectedStatsPeriodType"
+    static var lastSelectedStatsPeriodTypeKey: String? {
+        guard let siteID = SiteStatsInformation.sharedInstance.siteID?.intValue else {
+            return nil
+        }
+        return "LastSelectedStatsPeriodType-\(siteID)"
+    }
+
     static let lastSelectedStatsDateKey = "LastSelectedStatsDate"
 
     // MARK: - Properties
@@ -148,11 +154,23 @@ private extension SiteStatsDashboardViewController {
 private extension SiteStatsDashboardViewController {
 
     func saveSelectedPeriodToUserDefaults() {
-        UserDefaults.standard.set(currentSelectedPeriod.rawValue, forKey: Self.lastSelectedStatsPeriodTypeKey)
+
+        guard let key = Self.lastSelectedStatsPeriodTypeKey,
+              !insightsTableViewController.isGrowAudienceShowing else {
+            return
+        }
+
+        UserDefaults.standard.set(currentSelectedPeriod.rawValue, forKey: key)
     }
 
     func getSelectedPeriodFromUserDefaults() -> StatsPeriodType {
-        return StatsPeriodType(rawValue: UserDefaults.standard.integer(forKey: Self.lastSelectedStatsPeriodTypeKey)) ?? .insights
+
+        guard let key = Self.lastSelectedStatsPeriodTypeKey,
+              let periodType = StatsPeriodType(rawValue: UserDefaults.standard.integer(forKey: key)) else {
+            return .insights
+        }
+
+        return periodType
     }
 
     func getLastSelectedDateFromUserDefaults() -> Date? {

WordPress/Classes/ViewRelated/System/Coordinators/MySitesCoordinator.swift

@@ -129,7 +129,11 @@ class MySitesCoordinator: NSObject {
             UserDefaults.standard.set(date, forKey: SiteStatsDashboardViewController.lastSelectedStatsDateKey)
         }
 
-        UserDefaults.standard.set(timePeriod.rawValue, forKey: SiteStatsDashboardViewController.lastSelectedStatsPeriodTypeKey)
+        guard let key = SiteStatsDashboardViewController.lastSelectedStatsPeriodTypeKey else {
+            return
+        }
+
+        UserDefaults.standard.set(timePeriod.rawValue, forKey: key)
 
         mySiteViewController.showDetailView(for: .stats)
     }