Remove DM channel cache

Hosting/NetCord.Hosting/Gateway/GatewayClientOptions.cs

@@ -51,8 +51,6 @@ internal partial class Validator : IValidateOptions<GatewayClientOptions>
 
     public Shard? Shard { get; set; }
 
-    public bool? CacheDMChannels { get; set; }
-
     public RestClientConfiguration? RestClientConfiguration { get; set; }
 
     internal GatewayClientConfiguration CreateConfiguration()
@@ -71,7 +69,6 @@ internal GatewayClientConfiguration CreateConfiguration()
                                                         LargeThreshold,
                                                         Presence,
                                                         Shard,
-                                                        CacheDMChannels,
                                                         RestClientConfiguration);
     }
 }

Hosting/NetCord.Hosting/Gateway/ShardedGatewayClientOptions.cs

@@ -52,8 +52,6 @@ internal partial class Validator : IValidateOptions<ShardedGatewayClientOptions>
 
     public int? ShardCount { get; set; }
 
-    public bool? CacheDMChannels { get; set; }
-
     public RestClientConfiguration? RestClientConfiguration { get; set; }
 
     // Simple properties
@@ -98,7 +96,6 @@ internal ShardedGatewayClientConfiguration CreateConfiguration()
                                                                CreateFactory(LargeThreshold, LargeThresholdFactory),
                                                                CreateFactory(Presence, PresenceFactory),
                                                                ShardCount,
-                                                               CacheDMChannels,
                                                                RestClientConfiguration);
 
         static Func<Shard, T?>? CreateFactory<T>(T? value, Func<Shard, T?>? func, [CallerArgumentExpression(nameof(value))] string valueName = "", [CallerArgumentExpression(nameof(func))] string funcName = "")

NetCord.Services/ApplicationCommands/ApplicationCommandContexts.cs

@@ -19,6 +19,8 @@ public class ApplicationCommandContext(ApplicationCommandInteraction interaction
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public User User => Interaction.User;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpApplicationCommandContext(ApplicationCommandInteraction interaction, RestClient client)
@@ -50,6 +52,8 @@ public class SlashCommandContext(SlashCommandInteraction interaction, GatewayCli
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public User User => Interaction.User;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpSlashCommandContext(SlashCommandInteraction interaction, RestClient client)
@@ -82,6 +86,8 @@ public class UserCommandContext(UserCommandInteraction interaction, GatewayClien
     public TextChannel Channel => Interaction.Channel;
     public User User => Interaction.User;
     public User Target => Interaction.Data.TargetUser;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpUserCommandContext(UserCommandInteraction interaction, RestClient client)
@@ -115,6 +121,8 @@ public class MessageCommandContext(MessageCommandInteraction interaction, Gatewa
     public TextChannel Channel => Interaction.Channel;
     public User User => Interaction.User;
     public RestMessage Target => Interaction.Data.TargetMessage;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpMessageCommandContext(MessageCommandInteraction interaction, RestClient client)

NetCord.Services/ApplicationCommands/AutocompleteInteractionContexts.cs

@@ -18,4 +18,6 @@ public class AutocompleteInteractionContext(AutocompleteInteraction interaction,
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public User User => Interaction.User;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }

NetCord.Services/Commands/CommandContexts.cs

@@ -18,4 +18,6 @@ public class CommandContext(Message message, GatewayClient client)
     public Guild? Guild => Message.Guild;
     public TextChannel? Channel => Message.Channel;
     public User User => Message.Author;
+
+    ulong? IGuildContext.GuildId => Message.GuildId;
 }

NetCord.Services/ComponentInteractions/ComponentInteractionContexts.cs

@@ -19,6 +19,8 @@ public class ComponentInteractionContext(ComponentInteraction interaction, Gatew
     public User User => Interaction.User;
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpComponentInteractionContext(ComponentInteraction interaction, RestClient client)
@@ -52,6 +54,8 @@ public class MessageComponentInteractionContext(MessageComponentInteraction inte
     public User User => Interaction.User;
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpMessageComponentInteractionContext(MessageComponentInteraction interaction, RestClient client)
@@ -87,6 +91,8 @@ public class ButtonInteractionContext(ButtonInteraction interaction, GatewayClie
     public User User => Interaction.User;
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpButtonInteractionContext(ButtonInteraction interaction, RestClient client)
@@ -123,6 +129,8 @@ public class StringMenuInteractionContext(StringMenuInteraction interaction, Gat
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<string> SelectedValues => Interaction.Data.SelectedValues;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpStringMenuInteractionContext(StringMenuInteraction interaction, RestClient client)
@@ -160,6 +168,8 @@ public class EntityMenuInteractionContext(EntityMenuInteraction interaction, Gat
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<ulong> SelectedValues => Interaction.Data.SelectedValues;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpEntityMenuInteractionContext(EntityMenuInteraction interaction, RestClient client)
@@ -197,6 +207,8 @@ public class UserMenuInteractionContext(UserMenuInteraction interaction, Gateway
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<User> SelectedUsers { get; } = Utils.GetUserMenuValues(interaction);
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpUserMenuInteractionContext(UserMenuInteraction interaction, RestClient client)
@@ -234,6 +246,8 @@ public class RoleMenuInteractionContext(RoleMenuInteraction interaction, Gateway
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<Role> SelectedRoles { get; } = Utils.GetRoleMenuValues(interaction);
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpRoleMenuInteractionContext(RoleMenuInteraction interaction, RestClient client)
@@ -271,6 +285,8 @@ public class MentionableMenuInteractionContext(MentionableMenuInteraction intera
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<Mentionable> SelectedMentionables { get; } = Utils.GetMentionableMenuValues(interaction);
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpMentionableMenuInteractionContext(MentionableMenuInteraction interaction, RestClient client)
@@ -308,6 +324,8 @@ public class ChannelMenuInteractionContext(ChannelMenuInteraction interaction, G
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<Channel> SelectedChannels { get; } = Utils.GetChannelMenuValues(interaction);
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpChannelMenuInteractionContext(ChannelMenuInteraction interaction, RestClient client)
@@ -343,6 +361,8 @@ public class ModalInteractionContext(ModalInteraction interaction, GatewayClient
     public Guild? Guild => Interaction.Guild;
     public TextChannel Channel => Interaction.Channel;
     public IReadOnlyList<IComponent> Components => Interaction.Data.Components;
+
+    ulong? IGuildContext.GuildId => Interaction.GuildId;
 }
 
 public class HttpModalInteractionContext(ModalInteraction interaction, RestClient client)

NetCord.Services/Contexts/IGuildContext.cs

@@ -5,4 +5,6 @@ namespace NetCord.Services;
 public interface IGuildContext
 {
     public Guild? Guild { get; }
+
+    internal protected ulong? GuildId { get; }
 }

NetCord.Services/PreconditionAttributes/RequireContextAttribute.cs

@@ -4,48 +4,55 @@
 
 namespace NetCord.Services;
 
-public class RequireContextAttribute<TContext> : PreconditionAttribute<TContext> where TContext : IChannelContext
+#pragma warning disable IDE0290 // Use primary constructor
+
+public class RequireContextAttribute<TContext> : PreconditionAttribute<TContext> where TContext : IGuildContext
 {
-    public RequiredContext RequiredContext { get; }
+    public RequiredContext RequiredContext => GetRequiredContext(_guild);
 
     public string Format => _format.Format;
 
+    private readonly bool _guild;
     private readonly CompositeFormat _format;
 
     /// <param name="requiredContext"></param>
     /// <param name="format">{0} - required context</param>
     public RequireContextAttribute(RequiredContext requiredContext, [StringSyntax(StringSyntaxAttribute.CompositeFormat)] string format = "Required context: {0}.")
     {
-        if (requiredContext > RequiredContext.DM)
-            throw new InvalidEnumArgumentException(nameof(requiredContext), (int)requiredContext, typeof(RequiredContext));
+        _guild = requiredContext switch
+        {
+            RequiredContext.Guild => true,
+            RequiredContext.DM => false,
+            _ => throw new InvalidEnumArgumentException(nameof(requiredContext), (int)requiredContext, typeof(RequiredContext)),
+        };
 
-        RequiredContext = requiredContext;
         _format = CompositeFormat.Parse(format);
     }
 
     public override ValueTask<PreconditionResult> EnsureCanExecuteAsync(TContext context, IServiceProvider? serviceProvider)
     {
-        var channel = context.Channel;
-
-        var requiredContext = RequiredContext;
+        var guild = _guild;
+        var hasValue = context.GuildId.HasValue;
 
-        if (requiredContext switch
+        if (guild switch
         {
-            RequiredContext.Guild => channel is not IGuildChannel,
-            RequiredContext.GroupDM => channel is not GroupDMChannel,
-            RequiredContext.DM => channel is not DMChannel,
-            _ => throw new InvalidOperationException(),
+            true => !hasValue,
+            false => hasValue,
         })
+        {
+            var requiredContext = GetRequiredContext(guild);
             return new(new InvalidContextResult(string.Format(null, _format, requiredContext), requiredContext));
+        }
 
         return new(PreconditionResult.Success);
     }
+
+    private static RequiredContext GetRequiredContext(bool guild) => guild ? RequiredContext.Guild : RequiredContext.DM;
 }
 
 public enum RequiredContext : byte
 {
     Guild,
-    GroupDM,
     DM,
 }
 

NetCord/Gateway/GatewayClient.cs

@@ -17,9 +17,6 @@ public partial class GatewayClient : WebSocketClient, IEntity
     private readonly int? _largeThreshold;
     private readonly PresenceProperties? _presence;
     private readonly GatewayIntents _intents;
-    private readonly bool _cacheDMChannels;
-    private readonly object? _DMsLock;
-    private readonly Dictionary<ulong, SemaphoreSlim>? _DMSemaphores;
     private readonly IGatewayCompression _compression;
     private readonly bool _disposeRest;
 
@@ -837,12 +834,6 @@ public partial class GatewayClient : WebSocketClient, IEntity
         _presence = configuration.Presence;
         _intents = configuration.Intents.GetValueOrDefault(GatewayIntents.AllNonPrivileged);
 
-        if (_cacheDMChannels = configuration.CacheDMChannels.GetValueOrDefault(true))
-        {
-            _DMsLock = new();
-            _DMSemaphores = [];
-        }
-
         var compression = _compression = configuration.Compression ?? IGatewayCompression.CreateDefault();
         Uri = new($"wss://{configuration.Hostname ?? Discord.GatewayHostname}/?v={(int)configuration.Version.GetValueOrDefault(ApiVersion.V10)}&encoding=json&compress={compression.Name}", UriKind.Absolute);
         Cache = configuration.Cache ?? new GatewayClientCache();
@@ -1290,36 +1281,12 @@ await InvokeEventAsync(Ready, args, data =>
                 break;
             case "MESSAGE_CREATE":
                 {
-                    await InvokeEventAsync(
-                        MessageCreate,
-                        () => data.ToObject(Serialization.Default.JsonMessage),
-                        json => Message.CreateFromJson(json, Cache, Rest),
-                        json => _cacheDMChannels && !json.GuildId.HasValue && !json.Flags.GetValueOrDefault().HasFlag(MessageFlags.Ephemeral),
-                        json =>
-                        {
-                            var channelId = json.ChannelId;
-                            if (!_DMSemaphores!.TryGetValue(channelId, out var semaphore))
-                                _DMSemaphores.Add(channelId, semaphore = new(1, 1));
-                            return semaphore;
-                        },
-                        json => CacheChannelAsync(json.ChannelId)).ConfigureAwait(false);
+                    await InvokeEventAsync(MessageCreate, () => Message.CreateFromJson(data.ToObject(Serialization.Default.JsonMessage), Cache, Rest)).ConfigureAwait(false);
                 }
                 break;
             case "MESSAGE_UPDATE":
                 {
-                    await InvokeEventAsync(
-                        MessageUpdate,
-                        () => data.ToObject(Serialization.Default.JsonMessage),
-                        json => Message.CreateFromJson(json, Cache, Rest),
-                        json => _cacheDMChannels && !json.GuildId.HasValue && !json.Flags.GetValueOrDefault().HasFlag(MessageFlags.Ephemeral),
-                        json =>
-                        {
-                            var channelId = json.ChannelId;
-                            if (!_DMSemaphores!.TryGetValue(channelId, out var semaphore))
-                                _DMSemaphores.Add(channelId, semaphore = new(1, 1));
-                            return semaphore;
-                        },
-                        json => CacheChannelAsync(json.ChannelId)).ConfigureAwait(false);
+                    await InvokeEventAsync(MessageUpdate, () => Message.CreateFromJson(data.ToObject(Serialization.Default.JsonMessage), Cache, Rest)).ConfigureAwait(false);
                 }
                 break;
             case "MESSAGE_DELETE":
@@ -1457,20 +1424,6 @@ await InvokeEventAsync(
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         ulong GetGuildId() => data.GetProperty("guild_id").ToObject(Serialization.Default.UInt64);
-
-        async ValueTask CacheChannelAsync(ulong channelId)
-        {
-            var cache = Cache;
-            if (!cache.DMChannels.ContainsKey(channelId))
-            {
-                var channel = await Rest.GetChannelAsync(channelId).ConfigureAwait(false);
-                if (channel is DMChannel dMChannel)
-                {
-                    lock (_DMsLock!)
-                        Cache = Cache.CacheDMChannel(dMChannel);
-                }
-            }
-        }
     }
 
     protected override void Dispose(bool disposing)

NetCord/Gateway/GatewayClientCache.cs

@@ -10,7 +10,6 @@ public sealed record GatewayClientCache : IGatewayClientCache
 {
     public GatewayClientCache()
     {
-        _DMChannels = CollectionsUtils.CreateImmutableDictionary<ulong, DMChannel>();
         _guilds = CollectionsUtils.CreateImmutableDictionary<ulong, Guild>();
     }
 
@@ -19,38 +18,26 @@ public GatewayClientCache(JsonGatewayClientCache jsonModel, ulong clientId, Rest
         var userModel = jsonModel.User;
         if (userModel is not null)
             _user = new(userModel, client);
-        _DMChannels = jsonModel.DMChannels.ToImmutableDictionary(c => c.Id, c => DMChannel.CreateFromJson(c, client));
         _guilds = jsonModel.Guilds.ToImmutableDictionary(g => g.Id, g => new Guild(g, clientId, client));
     }
 
     public CurrentUser? User => _user;
-    public IReadOnlyDictionary<ulong, DMChannel> DMChannels => _DMChannels;
     public IReadOnlyDictionary<ulong, Guild> Guilds => _guilds;
 
 #pragma warning disable IDE0032 // Use auto property
     private CurrentUser? _user;
 #pragma warning restore IDE0032 // Use auto property
-    private ImmutableDictionary<ulong, DMChannel> _DMChannels;
     private ImmutableDictionary<ulong, Guild> _guilds;
 
     public JsonGatewayClientCache ToJsonModel()
     {
         return new()
         {
             User = _user is null ? null : ((IJsonModel<JsonUser>)_user).JsonModel,
-            DMChannels = _DMChannels.Select(p => ((IJsonModel<JsonChannel>)p.Value).JsonModel).ToArray(),
             Guilds = _guilds.Select(p => ((IJsonModel<JsonGuild>)p.Value).JsonModel).ToArray(),
         };
     }
 
-    public IGatewayClientCache CacheDMChannel(DMChannel dMChannel)
-    {
-        return this with
-        {
-            _DMChannels = _DMChannels.SetItem(dMChannel.Id, dMChannel),
-        };
-    }
-
     public IGatewayClientCache CacheGuild(Guild guild)
     {
         return this with

NetCord/Gateway/GatewayClientConfiguration.cs

@@ -24,7 +24,6 @@ public class GatewayClientConfiguration : IWebSocketClientConfiguration
     public int? LargeThreshold { get; init; }
     public PresenceProperties? Presence { get; init; }
     public Shard? Shard { get; init; }
-    public bool? CacheDMChannels { get; init; }
     public RestClientConfiguration? RestClientConfiguration { get; init; }
 
     IRateLimiterProvider? IWebSocketClientConfiguration.RateLimiterProvider => RateLimiterProvider is { } rateLimiter ? rateLimiter : new GatewayRateLimiterProvider(120, 60_000);