Feature: Allow modifying attachments on interactions and extend the module base (#2091)

src/Discord.Net.Interactions/InteractionModuleBase.cs

@@ -1,4 +1,7 @@
+using Discord.Rest;
 using System;
+using System.Collections.Generic;
+using System.IO;
 using System.Threading.Tasks;
 
 namespace Discord.Interactions
@@ -47,18 +50,66 @@ namespace Discord.Interactions
             AllowedMentions allowedMentions = null, RequestOptions options = null, MessageComponent components = null, Embed embed = null) =>
             await Context.Interaction.RespondAsync(text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options).ConfigureAwait(false);
 
+        /// <inheritdoc cref="IDiscordInteraction.RespondWithFileAsync(Stream, string, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task RespondWithFileAsync(Stream fileStream, string fileName, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.RespondWithFileAsync(fileStream, fileName, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
+        /// <inheritdoc cref="IDiscordInteraction.RespondWithFileAsync(string, string, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task RespondWithFileAsync(string filePath, string fileName = null, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.RespondWithFileAsync(filePath, fileName, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
+        /// <inheritdoc cref="IDiscordInteraction.RespondWithFileAsync(FileAttachment, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task RespondWithFileAsync(FileAttachment attachment, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.RespondWithFileAsync(attachment, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
+        /// <inheritdoc cref="IDiscordInteraction.RespondWithFilesAsync(IEnumerable{FileAttachment}, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task RespondWithFilesAsync(IEnumerable<FileAttachment> attachments, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.RespondWithFilesAsync(attachments, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
         /// <inheritdoc cref="IDiscordInteraction.FollowupAsync(string, Embed[], bool, bool, AllowedMentions, RequestOptions, MessageComponent, Embed)"/>
         protected virtual async Task<IUserMessage> FollowupAsync (string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
             AllowedMentions allowedMentions = null, RequestOptions options = null, MessageComponent components = null, Embed embed = null) =>
             await Context.Interaction.FollowupAsync(text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options).ConfigureAwait(false);
 
+        /// <inheritdoc cref="IDiscordInteraction.FollowupWithFileAsync(Stream, string, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task<IUserMessage> FollowupWithFileAsync(Stream fileStream, string fileName, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.FollowupWithFileAsync(fileStream, fileName, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
+        /// <inheritdoc cref="IDiscordInteraction.FollowupWithFileAsync(string, string, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task<IUserMessage> FollowupWithFileAsync(string filePath, string fileName = null, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.FollowupWithFileAsync(filePath, fileName, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
+        /// <inheritdoc cref="IDiscordInteraction.FollowupWithFileAsync(FileAttachment, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task<IUserMessage> FollowupWithFileAsync(FileAttachment attachment, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.FollowupWithFileAsync(attachment, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
+        /// <inheritdoc cref="IDiscordInteraction.FollowupWithFilesAsync(IEnumerable{FileAttachment}, string, Embed[], bool, bool, AllowedMentions, MessageComponent, Embed, RequestOptions)"/>
+        protected virtual Task<IUserMessage> FollowupWithFilesAsync(IEnumerable<FileAttachment> attachments, string text = null, Embed[] embeds = null, bool isTTS = false, bool ephemeral = false,
+            AllowedMentions allowedMentions = null, MessageComponent components = null, Embed embed = null, RequestOptions options = null)
+            => Context.Interaction.FollowupWithFilesAsync(attachments, text, embeds, isTTS, ephemeral, allowedMentions, components, embed, options);
+
         /// <inheritdoc cref="IMessageChannel.SendMessageAsync(string, bool, Embed, RequestOptions, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[])"/>
         protected virtual async Task<IUserMessage> ReplyAsync (string text = null, bool isTTS = false, Embed embed = null, RequestOptions options = null,
             AllowedMentions allowedMentions = null, MessageReference messageReference = null, MessageComponent components = null) =>
             await Context.Channel.SendMessageAsync(text, false, embed, options, allowedMentions, messageReference, components).ConfigureAwait(false);
 
+        /// <inheritdoc cref="IDiscordInteraction.GetOriginalResponseAsync(RequestOptions)"/>
+        protected virtual Task<IUserMessage> GetOriginalResponseAsync(RequestOptions options = null)
+            => Context.Interaction.GetOriginalResponseAsync(options);
+
+        /// <inheritdoc cref="IDiscordInteraction.ModifyOriginalResponseAsync(Action{MessageProperties}, RequestOptions)"/>
+        protected virtual Task<IUserMessage> ModifyOriginalResponseAsync(Action<MessageProperties> func, RequestOptions options = null)
+            => Context.Interaction.ModifyOriginalResponseAsync(func, options);
+
         /// <inheritdoc cref="IDeletable.DeleteAsync(RequestOptions)"/>
-        protected virtual async Task DeleteOriginalResponseAsync ( )
+        protected virtual async Task DeleteOriginalResponseAsync()
         {
             var response = await Context.Interaction.GetOriginalResponseAsync().ConfigureAwait(false);
             await response.DeleteAsync().ConfigureAwait(false);

src/Discord.Net.Rest/DiscordRestApiClient.cs

@@ -1362,6 +1362,12 @@ namespace Discord.API
 
             return await SendJsonAsync<Message>("PATCH", () => $"webhooks/{CurrentApplicationId}/{interactionToken}/messages/@original", args, new BucketIds(), options: options);
         }
+        public async Task<Message> ModifyInteractionResponseAsync(UploadWebhookFileParams args, string interactionToken, RequestOptions options = null)
+        {
+            options = RequestOptions.CreateOrClone(options);
+
+            return await SendMultipartAsync<Message>("PATCH", () => $"webhooks/{CurrentApplicationId}/{interactionToken}/messages/@original", args.ToDictionary(), new BucketIds(), options: options);
+        }
         public async Task DeleteInteractionResponseAsync(string interactionToken, RequestOptions options = null)
         {
             options = RequestOptions.CreateOrClone(options);

src/Discord.Net.Rest/Entities/Interactions/InteractionHelper.cs

@@ -424,16 +424,31 @@ namespace Discord.Rest
 
             Preconditions.AtMost(apiEmbeds?.Count ?? 0, 10, nameof(args.Embeds), "A max of 10 embeds are allowed.");
 
-            var apiArgs = new ModifyInteractionResponseParams
+            if (!args.Attachments.IsSpecified)
             {
-                Content = args.Content,
-                Embeds = apiEmbeds?.ToArray() ?? Optional<API.Embed[]>.Unspecified,
-                AllowedMentions = args.AllowedMentions.IsSpecified ? args.AllowedMentions.Value?.ToModel() : Optional<API.AllowedMentions>.Unspecified,
-                Components = args.Components.IsSpecified ? args.Components.Value?.Components.Select(x => new API.ActionRowComponent(x)).ToArray() : Optional<API.ActionRowComponent[]>.Unspecified,
-                Flags = args.Flags
-            };
+                var apiArgs = new ModifyInteractionResponseParams
+                {
+                    Content = args.Content,
+                    Embeds = apiEmbeds?.ToArray() ?? Optional<API.Embed[]>.Unspecified,
+                    AllowedMentions = args.AllowedMentions.IsSpecified ? args.AllowedMentions.Value?.ToModel() : Optional<API.AllowedMentions>.Unspecified,
+                    Components = args.Components.IsSpecified ? args.Components.Value?.Components.Select(x => new API.ActionRowComponent(x)).ToArray() : Optional<API.ActionRowComponent[]>.Unspecified,
+                    Flags = args.Flags
+                };
 
-            return await client.ApiClient.ModifyInteractionResponseAsync(apiArgs, token, options).ConfigureAwait(false);
+                return await client.ApiClient.ModifyInteractionResponseAsync(apiArgs, token, options).ConfigureAwait(false);
+            }
+            else
+            {
+                var apiArgs = new UploadWebhookFileParams(args.Attachments.Value.ToArray())
+                {
+                    Content = args.Content,
+                    Embeds = apiEmbeds?.ToArray() ?? Optional<API.Embed[]>.Unspecified,
+                    AllowedMentions = args.AllowedMentions.IsSpecified ? args.AllowedMentions.Value?.ToModel() : Optional<API.AllowedMentions>.Unspecified,
+                    MessageComponents = args.Components.IsSpecified ? args.Components.Value?.Components.Select(x => new API.ActionRowComponent(x)).ToArray() : Optional<API.ActionRowComponent[]>.Unspecified,
+                };
+
+                return await client.ApiClient.ModifyInteractionResponseAsync(apiArgs, token, options).ConfigureAwait(false);
+            }
         }
 
         public static async Task DeleteInteractionResponseAsync(BaseDiscordClient client, RestInteractionMessage message, RequestOptions options = null)