Added Rpc message entities

src/Discord.Net.Rpc/Entities/Users/RpcUser.cs

@@ -0,0 +1,62 @@
+using Discord.Rest;
+using System.Diagnostics;
+using System.Threading.Tasks;
+using Model = Discord.API.User;
+
+namespace Discord.Rpc
+{
+    [DebuggerDisplay(@"{DebuggerDisplay,nq}")]
+    public class RpcUser : RpcEntity<ulong>, IUser, IUpdateable
+    {
+        public bool IsBot { get; private set; }
+        public string Username { get; private set; }
+        public ushort DiscriminatorValue { get; private set; }
+        public string AvatarId { get; private set; }
+
+        public string AvatarUrl => API.CDN.GetUserAvatarUrl(Id, AvatarId);
+        public string Discriminator => DiscriminatorValue.ToString("D4");
+        public string Mention => MentionUtils.MentionUser(Id);
+        public virtual Game? Game => null;
+        public virtual UserStatus Status => UserStatus.Unknown;
+
+        internal RpcUser(DiscordRpcClient discord, ulong id)
+            : base(discord, id)
+        {
+        }
+        internal static RpcUser Create(DiscordRpcClient discord, Model model)
+        {
+            var entity = new RpcUser(discord, model.Id);
+            entity.Update(model);
+            return entity;
+        }
+        internal virtual void Update(Model model)
+        {
+            if (model.Avatar.IsSpecified)
+                AvatarId = model.Avatar.Value;
+            if (model.Discriminator.IsSpecified)
+                DiscriminatorValue = ushort.Parse(model.Discriminator.Value);
+            if (model.Bot.IsSpecified)
+                IsBot = model.Bot.Value;
+            if (model.Username.IsSpecified)
+                Username = model.Username.Value;
+        }
+        
+        public virtual async Task UpdateAsync(RequestOptions options = null)
+        {
+            var model = await Discord.ApiClient.GetUserAsync(Id, options);
+            Update(model);
+        }
+
+        public Task<RestDMChannel> CreateDMChannelAsync(RequestOptions options = null)
+            => UserHelper.CreateDMChannelAsync(this, Discord, options);
+
+        public override string ToString() => $"{Username}#{Discriminator}";
+        internal string DebuggerDisplay => $"{Username}#{Discriminator} ({Id}{(IsBot ? ", Bot" : "")})";
+
+        //IUser
+        Task<IDMChannel> IUser.GetDMChannelAsync(CacheMode mode, RequestOptions options)
+            => Task.FromResult<IDMChannel>(null);
+        async Task<IDMChannel> IUser.CreateDMChannelAsync(RequestOptions options)
+            => await CreateDMChannelAsync(options);
+    }
+}