Fix: Don't depend on WebSocket for Interaction service (#2912)

* unfuck interaction service to not depend on WS

* Add XML docs

* fix summary refs

src/Discord.Net.Core/Entities/Interactions/SlashCommands/IAutocompleteInteraction.cs

@@ -1,3 +1,6 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
 namespace Discord
 {
     /// <summary>
@@ -9,5 +12,18 @@ namespace Discord
         ///     Gets the autocomplete data of this interaction.
         /// </summary>
         new IAutocompleteInteractionData Data { get; }
+
+        /// <summary>
+        ///     Responds to this interaction with a set of choices.
+        /// </summary>
+        /// <param name="result">
+        ///     The set of choices for the user to pick from.
+        ///     <remarks>
+        ///         A max of 25 choices are allowed. Passing <see langword="null"/> for this argument will show the executing user that
+        ///         there is no choices for their autocompleted input.
+        ///     </remarks>
+        /// </param>
+        /// <param name="options">The request options for this response.</param>
+        Task RespondAsync(IEnumerable<AutocompleteResult> result, RequestOptions options = null);
     }
 }

src/Discord.Net.Interactions/AutocompleteHandlers/AutocompleteHandler.cs

@@ -56,21 +56,21 @@ namespace Discord.Interactions
                 var result = await GenerateSuggestionsAsync(context, autocompleteInteraction, parameter, services).ConfigureAwait(false);
 
                 if (result.IsSuccess)
-                    switch (autocompleteInteraction)
                 {
-                        case RestAutocompleteInteraction restAutocomplete:
+                    var task = autocompleteInteraction.RespondAsync(result.Suggestions);
-                            var payload = restAutocomplete.Respond(result.Suggestions);
 
-                            if (context is IRestInteractionContext restContext && restContext.InteractionResponseCallback != null)
+                    await task;
+
+                    if (task is Task<string> strTask)
+                    {
+                        var payload = strTask.Result;
+
+                        if (context is IRestInteractionContext {InteractionResponseCallback: not null} restContext)
                             await restContext.InteractionResponseCallback.Invoke(payload).ConfigureAwait(false);
                         else
                             await InteractionService._restResponseCallback(context, payload).ConfigureAwait(false);
-                            break;
-                        case SocketAutocompleteInteraction socketAutocomplete:
-                            await socketAutocomplete.RespondAsync(result.Suggestions).ConfigureAwait(false);
-                            break;
                     }
-
+                }
                 await InteractionService._autocompleteHandlerExecutedEvent.InvokeAsync(this, context, result).ConfigureAwait(false);
                 return result;
             }

src/Discord.Net.Interactions/Discord.Net.Interactions.csproj

@@ -15,7 +15,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Discord.Net.Core\Discord.Net.Core.csproj" />
     <ProjectReference Include="..\Discord.Net.Rest\Discord.Net.Rest.csproj" />
-    <ProjectReference Include="..\Discord.Net.WebSocket\Discord.Net.WebSocket.csproj" />
   </ItemGroup>
 
   <ItemGroup>

src/Discord.Net.Interactions/Info/Parameters/SlashCommandParameterInfo.cs

@@ -49,7 +49,7 @@ namespace Discord.Interactions
         public int? MaxLength { get; }
 
         /// <summary>
-        ///     Gets the <see cref="TypeConverter{T}"/> that will be used to convert the incoming <see cref="Discord.WebSocket.SocketSlashCommandDataOption"/> into
+        ///     Gets the <see cref="TypeConverter{T}"/> that will be used to convert the incoming <see cref="Discord.IDiscordInteractionData"/> into
         ///     <see cref="CommandParameterInfo.ParameterType"/>.
         /// </summary>
         public TypeConverter TypeConverter { get; }

src/Discord.Net.Interactions/InteractionContext.cs

@@ -20,7 +20,7 @@ namespace Discord.Interactions
         public IReadOnlyCollection<IRouteSegmentMatch> SegmentMatches { get; private set; }
 
         /// <summary>
-        ///     Initializes a new <see cref="SocketInteractionContext{TInteraction}"/>.
+        ///     Initializes a new <see cref="InteractionContext"/>.
         /// </summary>
         /// <param name="client">The underlying client.</param>
         /// <param name="interaction">The underlying interaction.</param>

src/Discord.Net.Interactions/InteractionService.cs

@@ -145,30 +145,6 @@ namespace Discord.Interactions
         /// </summary>
         public IReadOnlyCollection<ModalInfo> Modals => ModalUtils.Modals;
 
-        /// <summary>
-        ///     Initialize a <see cref="InteractionService"/> with provided configurations.
-        /// </summary>
-        /// <param name="discord">The discord client.</param>
-        /// <param name="config">The configuration class.</param>
-        public InteractionService(DiscordSocketClient discord, InteractionServiceConfig config = null)
-            : this(() => discord.Rest, config ?? new InteractionServiceConfig()) { }
-
-        /// <summary>
-        ///     Initialize a <see cref="InteractionService"/> with provided configurations.
-        /// </summary>
-        /// <param name="discord">The discord client.</param>
-        /// <param name="config">The configuration class.</param>
-        public InteractionService(DiscordShardedClient discord, InteractionServiceConfig config = null)
-            : this(() => discord.Rest, config ?? new InteractionServiceConfig()) { }
-
-        /// <summary>
-        ///     Initialize a <see cref="InteractionService"/> with provided configurations.
-        /// </summary>
-        /// <param name="discord">The discord client.</param>
-        /// <param name="config">The configuration class.</param>
-        public InteractionService(BaseSocketClient discord, InteractionServiceConfig config = null)
-            : this(() => discord.Rest, config ?? new InteractionServiceConfig()) { }
-
         /// <summary>
         ///     Initialize a <see cref="InteractionService"/> with provided configurations.
         /// </summary>
@@ -177,6 +153,14 @@ namespace Discord.Interactions
         public InteractionService(DiscordRestClient discord, InteractionServiceConfig config = null)
             : this(() => discord, config ?? new InteractionServiceConfig()) { }
 
+        /// <summary>
+        ///     Initialize a <see cref="InteractionService"/> with provided configurations.
+        /// </summary>
+        /// <param name="discordProvider">The discord client provider.</param>
+        /// <param name="config">The configuration class.</param>
+        public InteractionService(IRestClientProvider discordProvider, InteractionServiceConfig config = null)
+            : this(() => discordProvider.RestClient, config ?? new InteractionServiceConfig()) { }
+
         private InteractionService(Func<DiscordRestClient> getRestClient, InteractionServiceConfig config = null)
         {
             config ??= new InteractionServiceConfig();

src/Discord.Net.Rest/DiscordRestClient.cs

@@ -15,7 +15,7 @@ namespace Discord.Rest
     /// <summary>
     ///     Provides a client to send REST-based requests to Discord.
     /// </summary>
-    public class DiscordRestClient : BaseDiscordClient, IDiscordClient
+    public class DiscordRestClient : BaseDiscordClient, IDiscordClient, IRestClientProvider
     {
         #region DiscordRestClient
         private RestApplication _applicationInfo;
@@ -399,5 +399,7 @@ namespace Discord.Rest
         async Task<IReadOnlyCollection<IApplicationCommand>> IDiscordClient.BulkOverwriteGlobalApplicationCommand(ApplicationCommandProperties[] properties, RequestOptions options)
             => await BulkOverwriteGlobalCommands(properties, options).ConfigureAwait(false);
         #endregion
+
+        DiscordRestClient IRestClientProvider.RestClient => this;
     }
 }

src/Discord.Net.Rest/Entities/Interactions/SlashCommands/RestAutocompleteInteraction.cs

@@ -118,5 +118,9 @@ namespace Discord.Rest
         //IAutocompleteInteraction
         /// <inheritdoc/>
         IAutocompleteInteractionData IAutocompleteInteraction.Data => Data;
+
+        /// <inheritdoc/>
+        Task IAutocompleteInteraction.RespondAsync(IEnumerable<AutocompleteResult> result, RequestOptions options)
+            =>Task.FromResult(Respond(result, options));
     }
 }

src/Discord.Net.Rest/IRestClientProvider.cs

@@ -0,0 +1,14 @@
+using Discord.Rest;
+
+namespace Discord.Rest;
+
+/// <summary>
+///     An interface that represents a client provider for Rest-based clients.
+/// </summary>
+public interface IRestClientProvider
+{
+    /// <summary>
+    ///     Gets the Rest client of this provider.
+    /// </summary>
+    DiscordRestClient RestClient { get; }
+}

src/Discord.Net.WebSocket/BaseSocketClient.cs

@@ -10,7 +10,7 @@ namespace Discord.WebSocket
     /// <summary>
     ///     Represents the base of a WebSocket-based Discord client.
     /// </summary>
-    public abstract partial class BaseSocketClient : BaseDiscordClient, IDiscordClient
+    public abstract partial class BaseSocketClient : BaseDiscordClient, IDiscordClient, IRestClientProvider
     {
         #region BaseSocketClient
         protected readonly DiscordSocketConfig BaseConfig;
@@ -352,5 +352,7 @@ namespace Discord.WebSocket
             return await GetVoiceRegionsAsync().ConfigureAwait(false);
         }
         #endregion
+
+        DiscordRestClient IRestClientProvider.RestClient => Rest;
     }
 }