Leave command

NadekoBot/Modules/Administration/AdministrationModule.cs

@@ -30,12 +30,14 @@ namespace NadekoBot.Modules.Administration
             commands.Add(new InfoCommands(this));
             commands.Add(new CustomReactionsCommands(this));
             commands.Add(new AutoAssignRole(this));
+            commands.Add(new SelfCommands(this));
         }
 
         public override string Prefix { get; } = NadekoBot.Config.CommandPrefixes.Administration;
 
         public override void Install(ModuleManager manager)
         {
+            
             manager.CreateCommands("", cgb =>
             {
 

NadekoBot/Modules/Administration/Commands/SelfCommands.cs

@@ -0,0 +1,49 @@
+using NadekoBot.Classes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Discord.Commands;
+using NadekoBot.Modules.Permissions.Classes;
+
+namespace NadekoBot.Modules.Administration.Commands
+{
+    class SelfCommands : DiscordCommand
+    {
+        public SelfCommands(DiscordModule module) : base(module)
+        {
+        }
+
+        internal override void Init(CommandGroupBuilder cgb)
+        {
+            cgb.CreateCommand(Module.Prefix + "leave")
+                .Description("Makes Nadeko leave the server. Either name or id required.\n**Usage**:.leave NSFW")
+                .Parameter("arg", ParameterType.Required)
+                .AddCheck(SimpleCheckers.OwnerOnly())
+                .Do(async e =>
+                {
+                    var arg = e.GetArg("arg")?.Trim();
+                    if (string.IsNullOrWhiteSpace(arg))
+                        return;
+                    var server = NadekoBot.Client.Servers.FirstOrDefault(s => s.Id.ToString() == arg) ??
+                                 NadekoBot.Client.FindServers(arg.Trim()).FirstOrDefault();
+                    if (server == null)
+                    {
+                        await e.Channel.SendMessage("Cannot find that server").ConfigureAwait(false);
+                        return;
+                    }
+                    var serverId = server.Id;
+                    if (!server.IsOwner)
+                    {
+                        await server.Leave();
+                    }
+                    else
+                    {
+                        await server.Delete();
+                    }
+                    await NadekoBot.SendMessageToOwner("Left server " + server.Name);
+                });
+        }
+    }
+}

NadekoBot/NadekoBot.cs

@@ -252,7 +252,7 @@ namespace NadekoBot
 
         public static bool IsOwner(ulong id) => Creds.OwnerIds.Contains(id);
 
-        public async Task SendMessageToOwner(string message)
+        public static async Task SendMessageToOwner(string message)
         {
             if (Config.ForwardMessages && OwnerPrivateChannel != null)
                 await OwnerPrivateChannel.SendMessage(message).ConfigureAwait(false);

NadekoBot/NadekoBot.csproj

@@ -136,6 +136,7 @@
   <ItemGroup>
     <Compile Include="Modules\Administration\Commands\AutoAssignRole.cs" />
     <Compile Include="Modules\Administration\Commands\CustomReactionsCommands.cs" />
+    <Compile Include="Modules\Administration\Commands\SelfCommands.cs" />
     <Compile Include="Modules\ClashOfClans\ClashOfClans.cs" />
     <Compile Include="Classes\DBHandler.cs" />
     <Compile Include="Classes\FlowersHandler.cs" />