add client note command and feature

Application/Commands/AddClientNoteCommand.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Threading.Tasks;
+using Data.Models.Client;
+using IW4MAdmin.Application.Meta;
+using SharedLibraryCore;
+using SharedLibraryCore.Commands;
+using SharedLibraryCore.Configuration;
+using SharedLibraryCore.Dtos.Meta.Responses;
+using SharedLibraryCore.Interfaces;
+
+namespace IW4MAdmin.Application.Commands;
+
+public class AddClientNoteCommand : Command
+{
+    private readonly IMetaServiceV2 _metaService;
+
+    public AddClientNoteCommand(CommandConfiguration config, ITranslationLookup layout, IMetaServiceV2 metaService) : base(config, layout)
+    {
+        Name = "addnote";
+        Description = _translationLookup["COMMANDS_ADD_CLIENT_NOTE_DESCRIPTION"];
+        Alias = "an";
+        Permission = EFClient.Permission.Moderator;
+        RequiresTarget = true;
+        Arguments = new[]
+        {
+            new CommandArgument
+            {
+                Name = _translationLookup["COMMANDS_ARGS_PLAYER"],
+                Required = true
+            },
+            new CommandArgument
+            {
+                Name = _translationLookup["COMMANDS_ARGS_NOTE"],
+                Required = true
+            }
+        };
+        
+        _metaService = metaService;
+    }
+
+    public override async Task ExecuteAsync(GameEvent gameEvent)
+    {
+        var note = new ClientNoteMetaResponse
+        {
+            Note = gameEvent.Data?.Trim(),
+            OriginEntityId = gameEvent.Origin.ClientId,
+            ModifiedDate = DateTime.UtcNow
+        };
+        await _metaService.SetPersistentMetaValue("ClientNotes", note, gameEvent.Target.ClientId);
+        gameEvent.Origin.Tell(_translationLookup["COMMANDS_ADD_CLIENT_NOTE_SUCCESS"]);
+    }
+}