feat(messageAck) New Event

#233 .-.

src/client/websocket/handlers/MESSAGE_ACK.js

@@ -1,5 +1,16 @@
 'use strict';
 
-module.exports = (client, { d: data }) =>
-  // Client.user.messageMentions.delete(data.channel_id);
-  `${client}:${data}`;
+const { Events } = require('../../../util/Constants');
+
+module.exports = (client, { d: data }) => {
+  const channel = client.channels.cache.get(data.channel_id);
+  /**
+   * Emitted whenever message is acknowledged (mark read / unread)
+   * @event Client#messageAck
+   * @param {TextChannel} channel Channel
+   * @param {Snowflake} message_id Message ID
+   * @param {boolean} isRead Whether the message is read
+   * @param {Object} raw Raw data
+   */
+  client.emit(Events.MESSAGE_ACK, channel, data.message_id, !data.manual, data);
+};

src/client/websocket/handlers/index.js

@@ -34,6 +34,7 @@ const handlers = Object.fromEntries([
   ['CHANNEL_DELETE', require('./CHANNEL_DELETE')],
   ['CHANNEL_UPDATE', require('./CHANNEL_UPDATE')],
   ['CHANNEL_PINS_UPDATE', require('./CHANNEL_PINS_UPDATE')],
+  ['MESSAGE_ACK', require('./MESSAGE_ACK')],
   ['MESSAGE_CREATE', require('./MESSAGE_CREATE')],
   ['MESSAGE_DELETE', require('./MESSAGE_DELETE')],
   ['MESSAGE_UPDATE', require('./MESSAGE_UPDATE')],