Add ability to specify parameters on channel creation

src/Discord.Net.Core/Entities/Guilds/IGuild.cs

@@ -1,4 +1,4 @@
-using Discord.Audio;
+using Discord.Audio;
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
@@ -91,9 +91,9 @@ namespace Discord
         Task<ITextChannel> GetDefaultChannelAsync(CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null);
         Task<IGuildChannel> GetEmbedChannelAsync(CacheMode mode = CacheMode.AllowDownload, RequestOptions options = null);
         /// <summary> Creates a new text channel. </summary>
-        Task<ITextChannel> CreateTextChannelAsync(string name, RequestOptions options = null);
+        Task<ITextChannel> CreateTextChannelAsync(string name, RequestOptions options = null, Action<TextChannelProperties> func = null);
         /// <summary> Creates a new voice channel. </summary>
-        Task<IVoiceChannel> CreateVoiceChannelAsync(string name, RequestOptions options = null);
+        Task<IVoiceChannel> CreateVoiceChannelAsync(string name, RequestOptions options = null, Action<VoiceChannelProperties> func = null);
         /// <summary> Creates a new channel category. </summary>
         Task<ICategoryChannel> CreateCategoryAsync(string name, RequestOptions options = null);
 
@@ -135,4 +135,4 @@ namespace Discord
         /// <summary> Deletes an existing emote from this guild. </summary>
         Task DeleteEmoteAsync(GuildEmote emote, RequestOptions options = null);
     }
-}
+}

src/Discord.Net.Rest/API/Rest/CreateGuildChannelParams.cs

@@ -1,4 +1,4 @@
-#pragma warning disable CS1591
+#pragma warning disable CS1591
 using Newtonsoft.Json;
 
 namespace Discord.API.Rest
@@ -10,9 +10,20 @@ namespace Discord.API.Rest
         public string Name { get; }
         [JsonProperty("type")]
         public ChannelType Type { get; }
+        [JsonProperty("parent_id")]
+        public Optional<ulong?> CategoryId { get; set; }
 
+        //Text channels
+        [JsonProperty("topic")]
+        public Optional<string> Topic { get; set; }
+        [JsonProperty("nsfw")]
+        public Optional<bool> IsNsfw { get; set; }
+
+        //Voice channels
         [JsonProperty("bitrate")]
         public Optional<int> Bitrate { get; set; }
+        [JsonProperty("user_limit")]
+        public Optional<int?> UserLimit { get; set; }
 
         public CreateGuildChannelParams(string name, ChannelType type)
         {

src/Discord.Net.Rest/Entities/Guilds/GuildHelper.cs

@@ -1,4 +1,4 @@
-using Discord.API.Rest;
+using Discord.API.Rest;
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
@@ -140,20 +140,36 @@ namespace Discord.Rest
             return models.Select(x => RestGuildChannel.Create(client, guild, x)).ToImmutableArray();
         }
         public static async Task<RestTextChannel> CreateTextChannelAsync(IGuild guild, BaseDiscordClient client,
-            string name, RequestOptions options)
+            string name, RequestOptions options, Action<TextChannelProperties> func = null)
         {
             if (name == null) throw new ArgumentNullException(nameof(name));
 
-            var args = new CreateGuildChannelParams(name, ChannelType.Text);
+            var props = new TextChannelProperties();
+            func?.Invoke(props);
+
+            var args = new CreateGuildChannelParams(name, ChannelType.Text)
+            {
+                CategoryId = props.CategoryId,
+                Topic = props.Topic,
+                IsNsfw = props.IsNsfw
+            };
             var model = await client.ApiClient.CreateGuildChannelAsync(guild.Id, args, options).ConfigureAwait(false);
             return RestTextChannel.Create(client, guild, model);
         }
         public static async Task<RestVoiceChannel> CreateVoiceChannelAsync(IGuild guild, BaseDiscordClient client,
-            string name, RequestOptions options)
+            string name, RequestOptions options, Action<VoiceChannelProperties> func = null)
         {
             if (name == null) throw new ArgumentNullException(nameof(name));
 
-            var args = new CreateGuildChannelParams(name, ChannelType.Voice);
+            var props = new VoiceChannelProperties();
+            func?.Invoke(props);
+
+            var args = new CreateGuildChannelParams(name, ChannelType.Voice)
+            {
+                CategoryId = props.CategoryId,
+                Bitrate = props.Bitrate,
+                UserLimit = props.UserLimit
+            };
             var model = await client.ApiClient.CreateGuildChannelAsync(guild.Id, args, options).ConfigureAwait(false);
             return RestVoiceChannel.Create(client, guild, model);
         }

src/Discord.Net.Rest/Entities/Guilds/RestGuild.cs

@@ -1,4 +1,4 @@
-using Discord.Audio;
+using Discord.Audio;
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
@@ -218,10 +218,10 @@ namespace Discord.Rest
             }
             return null;
         }
-        public Task<RestTextChannel> CreateTextChannelAsync(string name, RequestOptions options = null)
-            => GuildHelper.CreateTextChannelAsync(this, Discord, name, options);
-        public Task<RestVoiceChannel> CreateVoiceChannelAsync(string name, RequestOptions options = null)
-            => GuildHelper.CreateVoiceChannelAsync(this, Discord, name, options);
+        public Task<RestTextChannel> CreateTextChannelAsync(string name, RequestOptions options = null, Action<TextChannelProperties> func = null)
+            => GuildHelper.CreateTextChannelAsync(this, Discord, name, options, func);
+        public Task<RestVoiceChannel> CreateVoiceChannelAsync(string name, RequestOptions options = null, Action<VoiceChannelProperties> func = null)
+            => GuildHelper.CreateVoiceChannelAsync(this, Discord, name, options, func);
         public Task<RestCategoryChannel> CreateCategoryChannelAsync(string name, RequestOptions options = null)
             => GuildHelper.CreateCategoryChannelAsync(this, Discord, name, options);
 
@@ -369,10 +369,10 @@ namespace Discord.Rest
             else
                 return null;
         }
-        async Task<ITextChannel> IGuild.CreateTextChannelAsync(string name, RequestOptions options)
-            => await CreateTextChannelAsync(name, options).ConfigureAwait(false);
-        async Task<IVoiceChannel> IGuild.CreateVoiceChannelAsync(string name, RequestOptions options)
-            => await CreateVoiceChannelAsync(name, options).ConfigureAwait(false);
+        async Task<ITextChannel> IGuild.CreateTextChannelAsync(string name, RequestOptions options, Action<TextChannelProperties> func)
+            => await CreateTextChannelAsync(name, options, func).ConfigureAwait(false);
+        async Task<IVoiceChannel> IGuild.CreateVoiceChannelAsync(string name, RequestOptions options, Action<VoiceChannelProperties> func)
+            => await CreateVoiceChannelAsync(name, options, func).ConfigureAwait(false);
         async Task<ICategoryChannel> IGuild.CreateCategoryAsync(string name, RequestOptions options)
             => await CreateCategoryChannelAsync(name, options).ConfigureAwait(false);
 

src/Discord.Net.WebSocket/Entities/Guilds/SocketGuild.cs

@@ -311,10 +311,10 @@ namespace Discord.WebSocket
             => GetChannel(id) as SocketTextChannel;
         public SocketVoiceChannel GetVoiceChannel(ulong id)
             => GetChannel(id) as SocketVoiceChannel;
-        public Task<RestTextChannel> CreateTextChannelAsync(string name, RequestOptions options = null)
-            => GuildHelper.CreateTextChannelAsync(this, Discord, name, options);
-        public Task<RestVoiceChannel> CreateVoiceChannelAsync(string name, RequestOptions options = null)
-            => GuildHelper.CreateVoiceChannelAsync(this, Discord, name, options);
+        public Task<RestTextChannel> CreateTextChannelAsync(string name, RequestOptions options = null, Action<TextChannelProperties> func = null)
+            => GuildHelper.CreateTextChannelAsync(this, Discord, name, options, func);
+        public Task<RestVoiceChannel> CreateVoiceChannelAsync(string name, RequestOptions options = null, Action<VoiceChannelProperties> func = null)
+            => GuildHelper.CreateVoiceChannelAsync(this, Discord, name, options, func);
         public Task<RestCategoryChannel> CreateCategoryChannelAsync(string name, RequestOptions options = null)
             => GuildHelper.CreateCategoryChannelAsync(this, Discord, name, options);
 
@@ -664,10 +664,10 @@ namespace Discord.WebSocket
             => Task.FromResult<IGuildChannel>(EmbedChannel);
         Task<ITextChannel> IGuild.GetSystemChannelAsync(CacheMode mode, RequestOptions options)
             => Task.FromResult<ITextChannel>(SystemChannel);
-        async Task<ITextChannel> IGuild.CreateTextChannelAsync(string name, RequestOptions options)
-            => await CreateTextChannelAsync(name, options).ConfigureAwait(false);
-        async Task<IVoiceChannel> IGuild.CreateVoiceChannelAsync(string name, RequestOptions options)
-            => await CreateVoiceChannelAsync(name, options).ConfigureAwait(false);
+        async Task<ITextChannel> IGuild.CreateTextChannelAsync(string name, RequestOptions options, Action<TextChannelProperties> func)
+            => await CreateTextChannelAsync(name, options, func).ConfigureAwait(false);
+        async Task<IVoiceChannel> IGuild.CreateVoiceChannelAsync(string name, RequestOptions options, Action<VoiceChannelProperties> func)
+            => await CreateVoiceChannelAsync(name, options, func).ConfigureAwait(false);
         async Task<ICategoryChannel> IGuild.CreateCategoryAsync(string name, RequestOptions options)
             => await CreateCategoryChannelAsync(name, options).ConfigureAwait(false);