feat: add interaction_metadata for messages

include/dpp/message.h

@@ -2010,6 +2010,43 @@ namespace cache_policy {
 
 };
 
+/**
+ * @brief Metadata about the interaction, including the source of the interaction and relevant server and user IDs.
+ */
+struct DPP_EXPORT interaction_metadata_type {
+
+	/**
+	 * @brief ID of the interaction
+	 */
+	snowflake id;
+
+	/**
+	 * @brief User who triggered the interaction
+	 */
+	uint8_t type;
+
+	/**
+	 * @brief User who triggered the interaction
+	 */
+	user usr;
+
+	/**
+	 * @brief ID of the original response message, present only on follow-up messages
+	 */
+	snowflake original_response_message_id;
+
+	/**
+	 * @brief ID of the message that contained interactive component, present only on messages created from component interactions
+	 */
+	snowflake interacted_message_id;
+
+	// FIXME: Add this field sometime 
+	/**
+	 * @brief Metadata for the interaction that was used to open the modal, present only on modal submit interactions
+	 */
+	// interaction_metadata_type triggering_interaction_metadata;
+};
+
 /**
  * @brief Represents messages sent and received on Discord
  */
@@ -2187,6 +2224,11 @@ struct DPP_EXPORT message : public managed, json_interface<message> {
 		user usr;
 	} interaction;
 
+	/**
+	 * @brief Sent if the message is sent as a result of an interaction
+	 */
+	interaction_metadata_type interaction_metadata;
+
 	/**
 	 * @brief Allowed mentions details
 	 */

src/dpp/message.cpp

@@ -649,14 +649,20 @@ std::optional<uint32_t> poll::get_vote_count(uint32_t answer_id) const noexcept
 	return 0;
 }
 
-
+void from_json(const json& j, interaction_metadata_type& i) {
+	i.id = snowflake_not_null(&j, "id");
+	i.interacted_message_id = snowflake_not_null(&j, "interacted_message_id");
+	i.original_response_message_id = snowflake_not_null(&j, "original_response_message_id");
+	i.type = j["type"];
+	i.usr = j["usr"];
+}
 
 embed::~embed() = default;
 
 embed::embed() : timestamp(0) {
 }
 
-message::message() : managed(0), channel_id(0), guild_id(0), sent(0), edited(0), webhook_id(0),
+message::message() : managed(0), channel_id(0), guild_id(0), sent(0), edited(0), webhook_id(0), interaction_metadata{},
 	owner(nullptr), type(mt_default), flags(0), pinned(false), tts(false), mention_everyone(false)
 {
 	message_reference.channel_id = 0;
@@ -1328,6 +1334,11 @@ message& message::fill_from_json(json* d, cache_policy_t cp) {
 			this->author = *authoruser;
 		}
 	}
+
+	if (auto it = d->find("interaction_medata"); it != d->end()) {
+		it->get_to(this->interaction_metadata);
+	}
+
 	if (d->find("interaction") != d->end()) {
 		json& inter = (*d)["interaction"];
 		interaction.id = snowflake_not_null(&inter, "id");