redid migration in order to add botconfig.locale, added some improvements

src/NadekoBot/Migrations/20170213164350_guild-timezone-and-locale.Designer.cs

@@ -10,7 +10,7 @@ using NadekoBot.Modules.Music.Classes;
 namespace NadekoBot.Migrations
 {
     [DbContext(typeof(NadekoContext))]
-    [Migration("20170213125444_guild-timezone-and-locale")]
+    [Migration("20170213164350_guild-timezone-and-locale")]
     partial class guildtimezoneandlocale
     {
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -129,6 +129,8 @@ namespace NadekoBot.Migrations
 
                     b.Property<string>("HelpString");
 
+                    b.Property<string>("Locale");
+
                     b.Property<int>("MigrationVersion");
 
                     b.Property<int>("MinimumBetAmount");

src/NadekoBot/Migrations/20170213164350_guild-timezone-and-locale.cs

@@ -19,6 +19,12 @@ namespace NadekoBot.Migrations
                 table: "GuildConfigs",
                 nullable: true,
                 defaultValue: null);
+
+            migrationBuilder.AddColumn<string>(
+                name: "Locale",
+                table: "BotConfig",
+                nullable: true,
+                defaultValue: null);
         }
 
         protected override void Down(MigrationBuilder migrationBuilder)
@@ -30,6 +36,10 @@ namespace NadekoBot.Migrations
             migrationBuilder.DropColumn(
                 name: "TimeZoneId",
                 table: "GuildConfigs");
+
+            migrationBuilder.DropColumn(
+                name: "Locale",
+                table: "BotConfig");
         }
     }
 }

src/NadekoBot/Migrations/NadekoSqliteContextModelSnapshot.cs

@@ -128,6 +128,8 @@ namespace NadekoBot.Migrations
 
                     b.Property<string>("HelpString");
 
+                    b.Property<string>("Locale");
+
                     b.Property<int>("MigrationVersion");
 
                     b.Property<int>("MinimumBetAmount");

src/NadekoBot/NadekoBot.cs

@@ -84,7 +84,7 @@ namespace NadekoBot
 #endif
 
             //initialize Services
-            Localization = new Localization(NadekoBot.AllGuildConfigs.ToDictionary(x => x.GuildId, x => x.Locale));
+            Localization = new Localization(NadekoBot.BotConfig.Locale, NadekoBot.AllGuildConfigs.ToDictionary(x => x.GuildId, x => x.Locale));
             CommandService = new CommandService(new CommandServiceConfig() {
                 CaseSensitiveCommands = false,
                 DefaultRunMode = RunMode.Sync

src/NadekoBot/Services/Database/Models/BotConfig.cs

@@ -60,6 +60,7 @@ Nadeko Support Server: https://discord.gg/nadekobot";
 
         public string OkColor { get; set; } = "71cd40";
         public string ErrorColor { get; set; } = "ee281f";
+        public string Locale { get; set; } = null;
     }
 
     public class PlayingStatus :DbEntity

src/NadekoBot/Services/Impl/Localization.cs

@@ -8,17 +8,35 @@ using System.Linq;
 using System.Threading.Tasks;
 using System;
 using NadekoBot.Services.Database;
+using NLog;
 
 namespace NadekoBot.Services
 {
     public class Localization
     {
+        private readonly Logger _log;
+
         public ConcurrentDictionary<ulong, CultureInfo> GuildCultureInfos { get; }
         public CultureInfo DefaultCultureInfo { get; private set; } = CultureInfo.CurrentCulture;
 
         private Localization() { }
-        public Localization(IDictionary<ulong, string> cultureInfoNames)
+        public Localization(string defaultCulture, IDictionary<ulong, string> cultureInfoNames)
         {
+            _log = LogManager.GetCurrentClassLogger();
+            if (string.IsNullOrWhiteSpace(defaultCulture))
+                DefaultCultureInfo = new CultureInfo("en-US");
+            else
+            {
+                try
+                {
+                    DefaultCultureInfo = new CultureInfo(defaultCulture);
+                }
+                catch
+                {
+                    _log.Warn("Unable to load default bot's locale/language. Using en-US.");
+                    DefaultCultureInfo = new CultureInfo("en-US");
+                }
+            }
             GuildCultureInfos = new ConcurrentDictionary<ulong, CultureInfo>(cultureInfoNames.ToDictionary(x => x.Key, x =>
               {
                   CultureInfo cultureInfo = null;
@@ -26,9 +44,7 @@ namespace NadekoBot.Services
                   {
                       cultureInfo = new CultureInfo(x.Value);
                   }
-                  catch
-                  {
-                  }
+                  catch { }
                   return cultureInfo;
               }).Where(x => x.Value != null));
         }
@@ -50,6 +66,8 @@ namespace NadekoBot.Services
                 gc.Locale = ci.Name;
                 uow.Complete();
             }
+
+            GuildCultureInfos.AddOrUpdate(guildId, ci, (id, old) => ci);
         }
 
         public void RemoveGuildCulture(IGuild guild) =>