fix: build_json for threads now works on creation

src/dpp/channel.cpp

@@ -478,34 +478,21 @@ channel& channel::fill_from_json(json* j) {
 }
 
 std::string thread::build_json(bool with_id) const {
-	json j;
-	j["name"] = this->name;
+	json j = json::parse(channel::build_json(with_id));
+	j["type"] = (flags & CHANNEL_TYPE_MASK);
 	j["archived"] = this->metadata.archived;
 	j["auto_archive_duration"] = this->metadata.auto_archive_duration;
 	j["locked"] = this->metadata.locked;
 
-	if(is_private_thread()) {
+	if(this->get_type() == dpp::channel_type::CHANNEL_PRIVATE_THREAD) {
 		j["invitable"] = this->metadata.invitable;
 	}
 
-	j["rate_limit_per_user"] = this->rate_limit_per_user;
-
-	if (is_forum() || is_media_channel()) {
-
-		uint32_t _flags = (flags & dpp::c_require_tag) ? dc_require_tag : 0;
-		if (is_media_channel()) {
-			_flags |= (flags & dpp::c_hide_media_download_options) ? dc_hide_media_download_options : 0;
-		}
-		if (_flags) {
-			j["flags"] = _flags;
-		}
-
-		if (!this->applied_tags.empty()) {
-			j["applied_tags"] = json::array();
-			for (auto &tag_id: this->applied_tags) {
-				if (tag_id) {
-					j["applied_tags"].push_back(tag_id);
-				}
+	if (!this->applied_tags.empty()) {
+		j["applied_tags"] = json::array();
+		for (auto &tag_id: this->applied_tags) {
+			if (tag_id) {
+				j["applied_tags"].push_back(tag_id);
 			}
 		}
 	}