From c1bfc6d3d9a9aaea470c4eee63dab97148f93f01 Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Mon, 22 Oct 2018 20:37:12 -0400
Subject: [PATCH] Fix presenting nested modal view controllers through
 AppRouter

---
 Tusker/AppRouter.swift | 45 +++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 22 deletions(-)

diff --git a/Tusker/AppRouter.swift b/Tusker/AppRouter.swift
index 4cd77cf0..8d9d9cf2 100644
--- a/Tusker/AppRouter.swift
+++ b/Tusker/AppRouter.swift
@@ -13,43 +13,44 @@ import SafariServices
 class AppRouter {
     
     let rootViewController: UIViewController
-    var currentViewController: UIViewController {
-        return getContentViewController(from: rootViewController)
-    }
     
     init(root: UIViewController) {
         self.rootViewController = root
     }
     
-    private func getContentViewController(from vc: UIViewController) -> UIViewController {
-        if let vc = vc as? UITabBarController,
-            let selected = vc.selectedViewController {
-            return getContentViewController(from: selected)
-        } else if let vc = vc as? UINavigationController,
+    private func getTopViewController(parent vc: UIViewController) -> UIViewController {
+        if let vc = vc as? UINavigationController,
             let top = vc.topViewController {
-            return getContentViewController(from: top)
+            return getTopViewController(parent: top)
+        } else if let vc = vc as? UITabBarController,
+            let selected = vc.selectedViewController {
+            return getTopViewController(parent: selected)
+        } else if let presented = vc.presentedViewController {
+            return getTopViewController(parent: presented)
         } else {
             return vc
         }
     }
     
-    func present(_ vc: UIViewController, animated: Bool) {
-        if currentViewController.presentingViewController != nil {
-            currentViewController.dismiss(animated: animated) {
-                self.present(vc, animated: animated)
-            }
+    private func getNavController(parent vc: UIViewController) -> UINavigationController {
+        if let vc = vc as? UINavigationController {
+            return vc
+        } else if let vc = vc as? UITabBarController,
+            let selected = vc.selectedViewController {
+            return getNavController(parent: selected)
+        } else {
+            fatalError()
         }
-        currentViewController.present(vc, animated: animated)
+    }
+    
+    func present(_ vc: UIViewController, animated: Bool) {
+        let top = getTopViewController(parent: rootViewController)
+        top.present(vc, animated: animated)
     }
     
     func push(_ vc: UIViewController, animated: Bool) {
-        if currentViewController.presentingViewController != nil {
-            currentViewController.dismiss(animated: animated) {
-                self.push(vc, animated: animated)
-            }
-        }
-        guard let nav = currentViewController.navigationController else { fatalError("Can't push view controller while not in navigation controller") }
-        nav.pushViewController(vc, animated: animated)
+        let nav = getNavController(parent: rootViewController)
+        nav.pushViewController(vc, animated: true)
     }
     
     func profile(for accountID: String) -> ProfileTableViewController {