Merge pull request #18430 from wordpress-mobile/feature/18176-show_site_selector

Blogging Prompts Feature Introduction: show site selector

Author: ScoutHarris

WordPress/Classes/ViewRelated/Feature Introduction/Blogging Prompts/BloggingPromptsIntroductionPresenter.swift

@@ -20,6 +20,9 @@ class BloggingPromptsIntroductionPresenter: NSObject {
         return UINavigationController(rootViewController: vc)
     }()
 
+    private var siteSelectorNavigationController: UINavigationController?
+    private var selectedBlog: Blog?
+
     private lazy var accountSites: [Blog]? = {
         return AccountService(managedObjectContext: ContextManager.shared.mainContext).defaultWordPressComAccount()?.visibleBlogs
     }()
@@ -49,24 +52,52 @@ class BloggingPromptsIntroductionPresenter: NSObject {
     // MARK: - Action Handling
 
     func primaryButtonSelected() {
-        accountHasMultipleSites ? showSiteSelector() : showPostCreation()
+        showSiteSelectorIfNeeded(completion: { [weak self] in
+            self?.showPostCreation()
+        })
     }
 
     func secondaryButtonSelected() {
-        accountHasMultipleSites ? showSiteSelector() : showRemindersScheduling()
+        showSiteSelectorIfNeeded(completion: { [weak self] in
+            self?.showRemindersScheduling()
+        })
     }
 
 }
 
 private extension BloggingPromptsIntroductionPresenter {
 
-    func showSiteSelector() {
-        // TODO: show site selector
-        navigationController.dismiss(animated: true)
+    func showSiteSelectorIfNeeded(completion: @escaping () -> Void) {
+        guard accountHasMultipleSites else {
+            completion()
+            return
+        }
+
+        let successHandler: BlogSelectorSuccessDotComHandler = { [weak self] (dotComID: NSNumber?) in
+            self?.selectedBlog = self?.accountSites?.first(where: { $0.dotComID == dotComID })
+            self?.siteSelectorNavigationController?.dismiss(animated: true)
+            completion()
+        }
+
+        let dismissHandler: BlogSelectorDismissHandler = {
+            completion()
+        }
+
+        let selectorViewController = BlogSelectorViewController(selectedBlogDotComID: nil,
+                                                                successHandler: successHandler,
+                                                                dismissHandler: dismissHandler)
+
+        selectorViewController.displaysOnlyDefaultAccountSites = true
+        selectorViewController.dismissOnCompletion = false
+        selectorViewController.dismissOnCancellation = true
+
+        let selectorNavigationController = UINavigationController(rootViewController: selectorViewController)
+        self.navigationController.present(selectorNavigationController, animated: true)
+        siteSelectorNavigationController = selectorNavigationController
     }
 
     func showPostCreation() {
-        guard let blog = accountSites?.first,
+        guard let blog = blogToUse(),
               let presentingViewController = presentingViewController else {
             navigationController.dismiss(animated: true)
             return
@@ -85,7 +116,7 @@ private extension BloggingPromptsIntroductionPresenter {
     }
 
     func showRemindersScheduling() {
-        guard let blog = accountSites?.first,
+        guard let blog = blogToUse(),
         let presentingViewController = presentingViewController else {
             navigationController.dismiss(animated: true)
             return
@@ -98,6 +129,10 @@ private extension BloggingPromptsIntroductionPresenter {
         })
     }
 
+    func blogToUse() -> Blog? {
+        return accountHasMultipleSites ? selectedBlog : accountSites?.first
+    }
+
     func trackPostEditorShown(_ blog: Blog) {
         WPAppAnalytics.track(.editorCreatedPost,
                              withProperties: [WPAppAnalyticsKeyTapSource: "blogging_prompts_feature_introduction", WPAppAnalyticsKeyPostType: "post"],