From c685e01a47cd03c28eb2bb75c8e9662888457b85 Mon Sep 17 00:00:00 2001
From: Levi Eggert <levi.eggert@cru.org>
Date: Wed, 24 Jul 2024 14:15:23 -0400
Subject: [PATCH] Delete realm files if unsupportedFileFormatVersion exception
 occurs

---
 .../Data/RealmDatabase/RealmDatabase.swift    | 33 ++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/godtools/App/Share/Data/RealmDatabase/RealmDatabase.swift b/godtools/App/Share/Data/RealmDatabase/RealmDatabase.swift
index 5b5ff6e792..61814833b9 100644
--- a/godtools/App/Share/Data/RealmDatabase/RealmDatabase.swift
+++ b/godtools/App/Share/Data/RealmDatabase/RealmDatabase.swift
@@ -8,6 +8,7 @@
 
 import Foundation
 import RealmSwift
+import Realm
 import Combine
 
 class RealmDatabase {
@@ -20,8 +21,38 @@ class RealmDatabase {
         
         self.databaseConfiguration = databaseConfiguration
         config = databaseConfiguration.getRealmConfig()
+        
+        _ = checkForUnsupportedFileFormatVersionAndDeleteRealmFilesIfNeeded(config: config)
     }
-
+    
+    private func checkForUnsupportedFileFormatVersionAndDeleteRealmFilesIfNeeded(config: Realm.Configuration) -> Error? {
+        
+        do {
+           
+            _ = try Realm(configuration: config)
+            
+        }
+        catch let realmConfigError as NSError {
+                        
+            if realmConfigError.code == Realm.Error.unsupportedFileFormatVersion.rawValue {
+                
+                do {
+                    _ = try Realm.deleteFiles(for: config)
+                }
+                catch let deleteFilesError {
+                    
+                    return deleteFilesError
+                }
+            }
+            else {
+                
+                return realmConfigError
+            }
+        }
+        
+        return nil
+    }
+    
     func openRealm() -> Realm {
         return try! Realm(configuration: config)
     }