added automatic migration configurations

src/XUnity.AutoTranslator.Plugin.Core/Configuration/Settings.cs

@@ -21,7 +21,7 @@ namespace XUnity.AutoTranslator.Plugin.Core.Configuration
       public static readonly float MaxTranslationsQueuedPerSecond = 5;
       public static readonly int MaxSecondsAboveTranslationThreshold = 30;
       public static readonly int TranslationQueueWatchWindow = 6;
-      
+
       // can be changed
       public static string ServiceEndpoint;
       public static string Language;
@@ -48,6 +48,8 @@ namespace XUnity.AutoTranslator.Plugin.Core.Configuration
       public static string WatsonAPIUsername;
       public static string WatsonAPIPassword;
       public static int ForceSplitTextAfterCharacters;
+      public static bool EnableMigrations;
+      public static string MigrationsTag;
 
       public static bool CopyToClipboard;
       public static int MaxClipboardCopyCharacters;
@@ -95,19 +97,42 @@ namespace XUnity.AutoTranslator.Plugin.Core.Configuration
          BaiduAppId = Config.Current.Preferences[ "Baidu" ][ "BaiduAppId" ].GetOrDefault( "" );
          BaiduAppSecret = Config.Current.Preferences[ "Baidu" ][ "BaiduAppSecret" ].GetOrDefault( "" );
 
-         YandexAPIKey = Config.Current.Preferences["Yandex"]["YandexAPIKey"].GetOrDefault("");
+         YandexAPIKey = Config.Current.Preferences[ "Yandex" ][ "YandexAPIKey" ].GetOrDefault( "" );
 
-         WatsonAPIUrl = Config.Current.Preferences["Watson"]["WatsonAPIUrl"].GetOrDefault("");
-         WatsonAPIUsername = Config.Current.Preferences["Watson"]["WatsonAPIUsername"].GetOrDefault("");
-         WatsonAPIPassword = Config.Current.Preferences["Watson"]["WatsonAPIPassword"].GetOrDefault("");
+         WatsonAPIUrl = Config.Current.Preferences[ "Watson" ][ "WatsonAPIUrl" ].GetOrDefault( "" );
+         WatsonAPIUsername = Config.Current.Preferences[ "Watson" ][ "WatsonAPIUsername" ].GetOrDefault( "" );
+         WatsonAPIPassword = Config.Current.Preferences[ "Watson" ][ "WatsonAPIPassword" ].GetOrDefault( "" );
 
          EnablePrintHierarchy = Config.Current.Preferences[ "Debug" ][ "EnablePrintHierarchy" ].GetOrDefault( false );
          EnableConsole = Config.Current.Preferences[ "Debug" ][ "EnableConsole" ].GetOrDefault( false );
          EnableDebugLogs = Config.Current.Preferences[ "Debug" ][ "EnableLog" ].GetOrDefault( false );
 
+         EnableMigrations = Config.Current.Preferences[ "Migrations" ][ "Enable" ].GetOrDefault( true );
+         MigrationsTag = Config.Current.Preferences[ "Migrations" ][ "Tag" ].GetOrDefault( string.Empty );
+
          AutoTranslationsFilePath = Path.Combine( Config.Current.DataPath, OutputFile.Replace( "{lang}", Language ) );
 
+         if( EnableMigrations )
+         {
+            Migrate();
+         }
+
+         // update tag
+         Config.Current.Preferences[ "Migrations" ][ "Tag" ].Value = PluginData.Version;
+
          Config.Current.SaveConfig();
       }
+
+      private static void Migrate()
+      {
+         var currentTag = MigrationsTag;
+         var newTag = PluginData.Version;
+
+         // migrate from unknown version to known version. Reset to google translate
+         if( string.IsNullOrEmpty( currentTag ) )
+         {
+            Config.Current.Preferences[ "Service" ][ "Endpoint" ].Value = KnownEndpointNames.GoogleTranslate;
+         }
+      }
    }
 }