Implement delete_message_seconds on Create Guild Ban endpoint

src/Disqord.Core/Discord/Limits/Rest/Discord.Limits.Rest.cs

@@ -9,6 +9,19 @@ public static partial class Limits
         /// </summary>
         public static class Rest
         {
+            /// <summary>
+            ///     Represents the number of days worth of messages that can be deleted when banning a user.
+            /// </summary>
+            public const int BanDeleteMessageDays = 7;
+
+            /// <summary>
+            ///     Represents the number of seconds worth of messages that can be deleted when banning a user.
+            /// </summary>
+            /// <remarks>
+            ///     <c>7 * 60 * 60 * 24 = 604800</c>
+            /// </remarks>
+            public const int BanDeleteMessageSeconds = 604800;
+
             /// <summary>
             ///     Represents the maximum length of the <c>X-Audit-Log-Reason</c> header; used for sending audit log reasons.
             /// </summary>

src/Disqord.Rest.Api/Content/Json/CreateBanJsonRestRequestContent.cs

@@ -7,12 +7,17 @@ public class CreateBanJsonRestRequestContent : JsonModelRestRequestContent
 {
     [JsonProperty("delete_message_days")]
     public Optional<int> DeleteMessageDays;
+
+    [JsonProperty("delete_message_seconds")]
+    public Optional<int> DeleteMessageSeconds;
 
     [JsonProperty("reason")]
     public Optional<string> Reason;
 
     protected override void OnValidate()
     {
+        OptionalGuard.CheckValue(DeleteMessageDays, static days => Guard.IsBetweenOrEqualTo(days, 0, Discord.Limits.Rest.BanDeleteMessageDays));
+        OptionalGuard.CheckValue(DeleteMessageSeconds, static days => Guard.IsBetweenOrEqualTo(days, 0, Discord.Limits.Rest.BanDeleteMessageSeconds));
         OptionalGuard.CheckValue(Reason, static reason => Guard.HasSizeLessThanOrEqualTo(reason, Discord.Limits.Rest.MaxAuditLogReasonLength));
     }
 }

src/Disqord.Rest/Extensions/Entity/RestEntityExtensions.Guild.cs

@@ -242,13 +242,13 @@ public static Task<IReadOnlyList<IBan>> FetchBansAsync(this IGuild guild,
         var client = guild.GetRestClient();
         return client.FetchBanAsync(guild.Id, userId, options, cancellationToken);
     }
-
+    
     public static Task CreateBanAsync(this IGuild guild,
-        Snowflake userId, string? reason = null, int? deleteMessageDays = null,
+        Snowflake userId, string? reason = null, TimeSpan? deleteMessageDuration = null,
         IRestRequestOptions? options = null, CancellationToken cancellationToken = default)
     {
         var client = guild.GetRestClient();
-        return client.CreateBanAsync(guild.Id, userId, reason, deleteMessageDays, options, cancellationToken);
+        return client.CreateBanAsync(guild.Id, userId, reason, deleteMessageDuration, options, cancellationToken);
     }
 
     public static Task DeleteBanAsync(this IGuild guild,

src/Disqord.Rest/Extensions/Entity/RestEntityExtensions.Member.cs

@@ -44,13 +44,13 @@ public static Task KickAsync(this IMember member,
         var client = member.GetRestClient();
         return client.KickMemberAsync(member.GuildId, member.Id, options, cancellationToken);
     }
-
+    
     public static Task BanAsync(this IMember member,
-        string? reason = null, int? deleteMessageDays = null,
+        string? reason = null, TimeSpan? deleteMessageDuration = null,
         IRestRequestOptions? options = null, CancellationToken cancellationToken = default)
     {
         var client = member.GetRestClient();
-        return client.CreateBanAsync(member.GuildId, member.Id, reason, deleteMessageDays, options, cancellationToken);
+        return client.CreateBanAsync(member.GuildId, member.Id, reason, deleteMessageDuration, options, cancellationToken);
     }
 
     public static Task UnbanAsync(this IMember member,

src/Disqord.Rest/Extensions/RestClientExtensions.Guild.cs

@@ -449,14 +449,14 @@ internal static async Task<IReadOnlyList<IBan>> InternalFetchBansAsync(this IRes
             return null;
         }
     }
-
+    
     public static Task CreateBanAsync(this IRestClient client,
-        Snowflake guildId, Snowflake userId, string? reason = null, int? deleteMessageDays = null,
+        Snowflake guildId, Snowflake userId, string? reason = null, TimeSpan? deleteMessageDuration = null,
         IRestRequestOptions? options = null, CancellationToken cancellationToken = default)
     {
         var content = new CreateBanJsonRestRequestContent
         {
-            DeleteMessageDays = Optional.FromNullable(deleteMessageDays),
+            DeleteMessageSeconds = Optional.FromNullable((int?) deleteMessageDuration?.TotalSeconds),
             Reason = Optional.FromNullable(reason)
         };