Dashboard: Add button to share store

RELEASE-NOTES.txt

@@ -4,7 +4,8 @@
 -----
 - [*] Add Products: A new view is display to celebrate when the first product is created in a store. [https://github.com/woocommerce/woocommerce-ios/pull/9790]
 - [*] Product form: a share action is shown in the navigation bar if the product can be shared and no more than one action is displayed, in addition to the more menu > Share. [https://github.com/woocommerce/woocommerce-ios/pull/9789]
-
+- [*] My Store: A new button to share the current store is added on the top right of the screen. [https://github.com/woocommerce/woocommerce-ios/pull/9796]
+
 13.7
 -----
 - [Internal] Adds guidance for new Customs rule when shipping to some EU countries. [https://github.com/woocommerce/woocommerce-ios/pull/9715]

WooCommerce/Classes/ViewRelated/Dashboard/DashboardViewController.swift

@@ -79,6 +79,8 @@ final class DashboardViewController: UIViewController {
         return view
     }()
 
+    private lazy var shareButton = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(shareStore))
+
     /// Stores an animator for showing/hiding the header view while there is an animation in progress
     /// so we can interrupt and reverse if needed
     private var headerAnimator: UIViewPropertyAnimator?
@@ -303,6 +305,7 @@ private extension DashboardViewController {
         configureTitle()
         configureContainerStackView()
         configureHeaderStackView()
+        configureShareButton()
     }
 
     func configureTabBarItem() {
@@ -315,6 +318,24 @@ private extension DashboardViewController {
         navigationItem.title = Localization.title
     }
 
+    func configureShareButton() {
+        // Only show share button if the site is public.
+        guard let site = ServiceLocator.stores.sessionManager.defaultSite, site.isPublic else {
+            return
+        }
+        navigationItem.rightBarButtonItem = shareButton
+    }
+
+    @objc
+    func shareStore() {
+        guard let site = ServiceLocator.stores.sessionManager.defaultSite,
+              let url = URL(string: site.url) else {
+            return
+        }
+        SharingHelper.shareURL(url: url, from: shareButton, in: self)
+        ServiceLocator.analytics.track(.dashboardShareStoreButtonTapped)
+    }
+
     func configureContainerStackView() {
         containerStackView.axis = .vertical
         containerView.addSubview(containerStackView)