1 files changed, 48 insertions, 0 deletions
diff --git a/Impostor-dev/src/Impostor.Api/Games/GameJoinResult.cs b/Impostor-dev/src/Impostor.Api/Games/GameJoinResult.cs
new file mode 100644
index 0000000..b33a2b6
--- /dev/null
+++ b/Impostor-dev/src/Impostor.Api/Games/GameJoinResult.cs
@@ -0,0 +1,48 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using Impostor.Api.Net;
+
+namespace Impostor.Api.Games
+{
+    public readonly struct GameJoinResult
+    {
+        private GameJoinResult(GameJoinError error, string? message = null, IClientPlayer? player = null)
+        {
+            Error = error;
+            Message = message;
+            Player = player;
+        }
+
+        public GameJoinError Error { get; }
+
+        public bool IsSuccess => Error == GameJoinError.None;
+
+        public bool IsCustomError => Error == GameJoinError.Custom;
+
+        [MemberNotNullWhen(true, nameof(IsCustomError))]
+        public string? Message { get; }
+
+        [MemberNotNullWhen(true, nameof(IsSuccess))]
+        public IClientPlayer? Player { get; }
+
+        public static GameJoinResult CreateCustomError(string message)
+        {
+            return new GameJoinResult(GameJoinError.Custom, message);
+        }
+
+        public static GameJoinResult CreateSuccess(IClientPlayer player)
+        {
+            return new GameJoinResult(GameJoinError.None, player: player);
+        }
+
+        public static GameJoinResult FromError(GameJoinError error)
+        {
+            if (error == GameJoinError.Custom)
+            {
+                throw new InvalidOperationException($"Custom errors should provide a message, use {nameof(CreateCustomError)} instead.");
+            }
+
+            return new GameJoinResult(error);
+        }
+    }
+}
+\ No newline at end of file