Fixed: Ensure default config file on starting app

(cherry picked from commit e747af9f448368e2add0d2869a3749efa9e93ae0)

(cherry picked from commit 5326a102e23eacfc1132eb544a92af737a531df5)

src/NzbDrone.Core/Configuration/ConfigFileProvider.cs

@@ -24,6 +24,7 @@ namespace NzbDrone.Core.Configuration
     {
         Dictionary<string, object> GetConfigDictionary();
         void SaveConfigDictionary(Dictionary<string, object> configValues);
+        void EnsureDefaultConfigFile();
 
         string BindAddress { get; }
         int Port { get; }
@@ -255,7 +256,7 @@ namespace NzbDrone.Core.Configuration
 
         public T GetValueEnum<T>(string key, T defaultValue, bool persist = true)
         {
-            return (T)Enum.Parse(typeof(T), GetValue(key, defaultValue), persist);
+            return (T)Enum.Parse(typeof(T), GetValue(key, defaultValue, persist));
         }
 
         public string GetValue(string key, object defaultValue, bool persist = true)
@@ -314,7 +315,7 @@ namespace NzbDrone.Core.Configuration
             SetValue(key, value.ToString().ToLower());
         }
 
-        private void EnsureDefaultConfigFile()
+        public void EnsureDefaultConfigFile()
         {
             if (!File.Exists(_configFile))
             {

src/NzbDrone.Host/Startup.cs

@@ -209,6 +209,8 @@ namespace NzbDrone.Host
             appFolderFactory.Register();
             pidFileProvider.Write();
 
+            configFileProvider.EnsureDefaultConfigFile();
+
             reconfigureLogging.Reconfigure();
 
             EnsureSingleInstance(false, startupContext, singleInstancePolicy);