add missing fields to guild channel

Added `flags`, `total_messages_sent`, `available_tags`, `applied_tags`,
`default_reaction_emoji`, `default_thread_rate_limit_per_user` and
`default_sort_order` fields to `GuildChannel`.
Added `ForumTag`, `ForumTagId`, `DefaultReaction` and `SortOrder`
objects.
Box the `Channel::Guild` variant to reduce enum size.

src/cache/event.rs

@@ -48,7 +48,7 @@ impl CacheUpdate for ChannelCreateEvent {
                     .get_mut(&guild_id)
                     .and_then(|mut g| g.channels.insert(channel_id, self.channel.clone()));
 
-                cache.channels.insert(channel_id, channel.clone());
+                cache.channels.insert(channel_id, *channel.clone());
 
                 old_channel
             },
@@ -130,7 +130,7 @@ impl CacheUpdate for ChannelUpdateEvent {
             Channel::Guild(ref channel) => {
                 let (guild_id, channel_id) = (channel.guild_id, channel.id);
 
-                cache.channels.insert(channel_id, channel.clone());
+                cache.channels.insert(channel_id, *channel.clone());
 
                 cache
                     .guilds
@@ -194,7 +194,7 @@ impl CacheUpdate for GuildCreateEvent {
 
         for pair in guild.channels.clone() {
             if let Channel::Guild(channel) = pair.1 {
-                cache.channels.insert(pair.0, channel);
+                cache.channels.insert(pair.0, *channel);
             }
         }
 

src/cache/mod.rs

@@ -361,13 +361,13 @@ impl Cache {
     fn _channel(&self, id: ChannelId) -> Option<Channel> {
         if let Some(channel) = self.channels.get(&id) {
             let channel = channel.clone();
-            return Some(Channel::Guild(channel));
+            return Some(Channel::Guild(Box::new(channel)));
         }
 
         #[cfg(feature = "temp_cache")]
         {
             if let Some(channel) = self.temp_channels.get(&id) {
-                return Some(Channel::Guild(channel));
+                return Some(Channel::Guild(Box::new(channel)));
             }
         }
 
@@ -699,7 +699,7 @@ impl Cache {
             g.channels
                 .iter()
                 .filter_map(|c| match c.1 {
-                    Channel::Guild(channel) => Some((channel.id, channel.clone())),
+                    Channel::Guild(channel) => Some((channel.id, *channel.clone())),
                     _ => None,
                 })
                 .collect()
@@ -1120,7 +1120,7 @@ mod test {
             assert!(!channel.contains_key(&MessageId(3)));
         }
 
-        let channel = Channel::Guild(GuildChannel {
+        let channel = Channel::Guild(Box::new(GuildChannel {
             id: event.message.channel_id,
             bitrate: None,
             parent_id: None,
@@ -1142,7 +1142,14 @@ mod test {
             thread_metadata: None,
             member: None,
             default_auto_archive_duration: None,
-        });
+            flags: ChannelFlags::empty(),
+            total_message_sent: None,
+            available_tags: Vec::new(),
+            applied_tags: Vec::new(),
+            default_reaction_emoji: None,
+            default_thread_rate_limit_per_user: None,
+            default_sort_order: SortOrder::Unknown,
+        }));
 
         // Add a channel delete event to the cache, the cached messages for that
         // channel should now be gone.

src/model/channel/channel_id.rs

@@ -434,7 +434,7 @@ impl ChannelId {
         {
             if let Some(cache) = cache_http.cache() {
                 if let Channel::Guild(guild_channel) = &channel {
-                    cache.temp_channels.insert(guild_channel.id, guild_channel.clone());
+                    cache.temp_channels.insert(guild_channel.id, *guild_channel.clone());
                 }
             }
         }

src/model/channel/guild_channel.rs

@@ -100,7 +100,7 @@ pub struct GuildChannel {
     pub position: i64,
     /// The topic of the channel.
     ///
-    /// **Note**: This is only available for text and stage channels.
+    /// **Note**: This is only available for text, forum and stage channels.
     pub topic: Option<String>,
     /// The maximum number of members allowed in the channel.
     ///
@@ -149,6 +149,34 @@ pub struct GuildChannel {
     ///
     /// **Note**: It can currently only be set to 60, 1440, 4320, 10080.
     pub default_auto_archive_duration: Option<u64>,
+    /// Extra information about the channel
+    ///
+    /// **Note**: This is only available in forum channels.
+    pub flags: ChannelFlags,
+    /// The number of messages ever sent in a thread, it's similar to `message_count`
+    /// on message creation, but will not decrement the number when a message is deleted.
+    pub total_message_sent: Option<u64>,
+    /// The set of available tags.
+    ///
+    /// **Note**: This is only available in forum channels.
+    pub available_tags: Vec<ForumTag>,
+    /// The set of applied tags.
+    ///
+    /// **Note**: This is only available in a thread in a forum.
+    pub applied_tags: Vec<ForumTagId>,
+    /// The emoji to show in the add reaction button
+    ///
+    /// **Note**: This is only available in a forum.
+    pub default_reaction_emoji: Option<DefaultReaction>,
+    /// The initial `rate_limit_per_user` to set on newly created threads in a channel.
+    /// This field is copied to the thread at creation time and does not live update.
+    ///
+    /// **Note**: This is only available in a forum or text channel.
+    pub default_thread_rate_limit_per_user: Option<u64>,
+    /// The default sort order type used to order posts
+    ///
+    /// **Note**: This is only available in a forum.
+    pub default_sort_order: SortOrder,
 }
 
 #[cfg(feature = "model")]

src/model/channel/mod.rs

@@ -51,7 +51,7 @@ pub enum Channel {
     /// [voice]: ChannelType::Voice
     /// [stage]: ChannelType::Stage
     /// [directory]: ChannelType::Directory
-    Guild(GuildChannel),
+    Guild(Box<GuildChannel>),
     /// A private channel to another [`User`]. No other users may access the
     /// channel. For multi-user "private channels", use a group.
     Private(PrivateChannel),
@@ -87,7 +87,7 @@ impl Channel {
     #[must_use]
     pub fn guild(self) -> Option<GuildChannel> {
         match self {
-            Self::Guild(lock) => Some(lock),
+            Self::Guild(lock) => Some(*lock),
             _ => None,
         }
     }
@@ -240,6 +240,7 @@ impl<'de> Deserialize<'de> for Channel {
 
         match kind {
             0 | 2 | 5 | 10 | 11 | 12 | 13 | 14 | 15 => from_value::<GuildChannel>(Value::from(v))
+                .map(Box::new)
                 .map(Channel::Guild)
                 .map_err(DeError::custom),
             1 => from_value::<PrivateChannel>(Value::from(v))
@@ -449,7 +450,7 @@ pub enum VideoQualityMode {
 }
 
 enum_number!(VideoQualityMode {
-    Auto,
+    Auto
     Full
 });
 
@@ -539,6 +540,13 @@ mod test {
                 thread_metadata: None,
                 member: None,
                 default_auto_archive_duration: None,
+                applied_tags: Vec::new(),
+                flags: ChannelFlags::empty(),
+                total_message_sent: None,
+                available_tags: Vec::new(),
+                default_reaction_emoji: None,
+                default_thread_rate_limit_per_user: None,
+                default_sort_order: SortOrder::Unknown,
             }
         }
 
@@ -585,7 +593,7 @@ mod test {
             channel.nsfw = false;
             assert!(!channel.is_nsfw());
 
-            let channel = Channel::Guild(channel);
+            let channel = Channel::Guild(Box::new(channel));
             assert!(!channel.is_nsfw());
 
             let private_channel = private_channel();
@@ -631,3 +639,74 @@ impl FromStrAndCache for Channel {
         }
     }
 }
+
+/// An object that represents a tag that is able to be applied to a thread in a `GUILD_FORUM` channel.
+///
+/// See [Discord docs](https://discord.com/developers/docs/resources/channel#forum-tag-object)
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct ForumTag {
+    /// The id of the tag.
+    pub id: ForumTagId,
+    /// The name of the tag (0-20 characters).
+    pub name: String,
+    /// Whether this tag can only be added to or removed from threads by a member with the MANAGE_THREADS permission.
+    pub moderated: bool,
+    /// The id of a guild's custom emoji.
+    ///
+    /// **Note**: At most one of `emoji_id` and `emoji_name` may be set.
+    pub emoji_id: Option<EmojiId>,
+    /// The unicode character of the emoji.
+    ///
+    /// **Note**: At most one of `emoji_id` and `emoji_name` may be set.
+    pub emoji_name: Option<String>,
+}
+
+/// An object that specifies the emoji to use as the default way to react to a forum post.
+///
+/// See [Discord docs](https://discord.com/developers/docs/resources/channel#forum-tag-object)
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct DefaultReaction {
+    /// The id of a guild's custom emoji.
+    ///
+    /// **Note**: At most one of `emoji_id` and `emoji_name` may be set.
+    pub emoji_id: Option<EmojiId>,
+    /// The unicode character of the emoji.
+    ///
+    /// **Note**: At most one of `emoji_id` and `emoji_name` may be set.
+    pub emoji_name: Option<String>,
+}
+
+/// The sort order for threads in a forum.
+///
+/// [Discord docs](https://discord.com/developers/docs/resources/channel#channel-object-sort-order-types).
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq, PartialOrd, Ord)]
+#[non_exhaustive]
+pub enum SortOrder {
+    /// Sort forum posts by activity.
+    LatestActivity = 0,
+    /// Sort forum posts by creation time (from most recent to oldest).
+    CreationDate = 2,
+    /// No sort order has been set.
+    Unknown = !0,
+}
+
+enum_number!(SortOrder {
+    LatestActivity
+    CreationDate
+});
+
+bitflags! {
+    /// Describes extra features of the channel.
+    ///
+    /// [Discord docs](https://discord.com/developers/docs/resources/channel#channel-object-channel-flags).
+    #[derive(Default)]
+    pub struct ChannelFlags: u64 {
+        /// This thread is pinned to the top of its parent GUILD_FORUM channel
+        const PINNED = 1 << 1;
+        /// Whether a tag is required to be specified when creating a
+        /// thread in a GUILD_FORUM channel. Tags are specified in the applied_tags field.
+        const REQUIRE_TAG = 1 << 4;
+    }
+}

src/model/guild/member.rs

@@ -234,7 +234,7 @@ impl Member {
         for channel in guild.channels.values() {
             if let Channel::Guild(channel) = channel {
                 if guild.user_permissions_in(channel, member).ok()?.view_channel() {
-                    return Some(channel.clone());
+                    return Some(*channel.clone());
                 }
             }
         }

src/model/id.rs

@@ -224,6 +224,12 @@ pub struct TargetId(#[serde(with = "snowflake")] pub u64);
 )]
 pub struct StageInstanceId(#[serde(with = "snowflake")] pub u64);
 
+/// An identifier for a forum tag.
+#[derive(
+    Copy, Clone, Default, Debug, Eq, Hash, PartialEq, PartialOrd, Ord, Deserialize, Serialize,
+)]
+pub struct ForumTagId(#[serde(with = "snowflake")] pub u64);
+
 id_u64! {
     AttachmentId;
     ApplicationId;
@@ -249,6 +255,7 @@ id_u64! {
     TargetId;
     StageInstanceId;
     RuleId;
+    ForumTagId;
 }
 
 /// Used with `#[serde(with|deserialize_with|serialize_with)]`

src/model/mention.rs

@@ -209,7 +209,7 @@ mod test {
 
     #[test]
     fn test_mention() {
-        let channel = Channel::Guild(GuildChannel {
+        let channel = Channel::Guild(Box::new(GuildChannel {
             bitrate: None,
             parent_id: None,
             guild_id: GuildId(1),
@@ -231,7 +231,14 @@ mod test {
             thread_metadata: None,
             member: None,
             default_auto_archive_duration: None,
-        });
+            flags: ChannelFlags::empty(),
+            total_message_sent: None,
+            available_tags: Vec::new(),
+            applied_tags: Vec::new(),
+            default_reaction_emoji: None,
+            default_thread_rate_limit_per_user: None,
+            default_sort_order: SortOrder::Unknown,
+        }));
         let emoji = Emoji {
             animated: false,
             available: true,

src/utils/argument_convert/channel.rs

@@ -59,15 +59,15 @@ async fn lookup_channel_global(
             None
         }
     }) {
-        return Ok(Channel::Guild(channel));
+        return Ok(Channel::Guild(Box::new(channel)));
     }
 
     if let Some(guild_id) = guild_id {
         let channels = ctx.http.get_channels(guild_id.0).await.map_err(ChannelParseError::Http)?;
         if let Some(channel) =
             channels.into_iter().find(|channel| channel.name.eq_ignore_ascii_case(s))
         {
-            return Ok(Channel::Guild(channel));
+            return Ok(Channel::Guild(Box::new(channel)));
         }
     }
 
@@ -155,7 +155,7 @@ impl ArgumentConvert for GuildChannel {
         s: &str,
     ) -> Result<Self, Self::Err> {
         match Channel::convert(ctx, guild_id, channel_id, s).await {
-            Ok(Channel::Guild(channel)) => Ok(channel),
+            Ok(Channel::Guild(channel)) => Ok(*channel),
             Ok(_) => Err(GuildChannelParseError::NotAGuildChannel),
             Err(ChannelParseError::Http(e)) => Err(GuildChannelParseError::Http(e)),
             Err(ChannelParseError::NotFoundOrMalformed) => {

src/utils/content_safe.rs

@@ -407,6 +407,13 @@ mod tests {
             thread_metadata: None,
             member: None,
             default_auto_archive_duration: None,
+            flags: ChannelFlags::empty(),
+            total_message_sent: None,
+            available_tags: Vec::new(),
+            applied_tags: Vec::new(),
+            default_reaction_emoji: None,
+            default_thread_rate_limit_per_user: None,
+            default_sort_order: SortOrder::Unknown,
         };
 
         let cache = Arc::new(Cache::default());