voice setup waits for all data

src/client/voice/ClientVoiceManager.js

@@ -0,0 +1,102 @@
+const Collection = require('../../util/Collection');
+const mergeDefault = require('../../util/MergeDefault');
+const Constants = require('../../util/Constants');
+
+/**
+ * Manages all the voice stuff for the Client
+ * @private
+ */
+class ClientVoiceManager {
+  constructor(client) {
+    /**
+     * The client that instantiated this voice manager
+     * @type {Client}
+     */
+    this.client = client;
+    /**
+     * A collection mapping connection IDs to the Connection objects
+     * @type {Collection<String, VoiceConnection>}
+     */
+    this.connections = new Collection();
+    /**
+     * Pending connection attempts, maps Guild ID to VoiceChannel
+     * @type {Collection<String, VoiceChannel>}
+     */
+    this.pending = new Collection();
+  }
+
+  _checkPendingReady(guildID) {
+    const pendingRequest = this.pending.get(guildID);
+    if (!pendingRequest) {
+      throw new Error('Guild not pending');
+    }
+    if (pendingRequest.token && pendingRequest.sessionID && pendingRequest.endpoint) {
+      console.log('got all info for', guildID);
+    }
+  }
+
+  /**
+   * Called when the Client receives information about this voice server update.
+   * @param {String} guildID the ID of the Guild
+   * @param {String} token the token to authorise with
+   * @param {String} endpoint the endpoint to connect to
+   */
+  _receivedVoiceServer(guildID, token, endpoint) {
+    const pendingRequest = this.pending.get(guildID);
+    if (!pendingRequest) {
+      throw new Error('Guild not pending');
+    }
+    pendingRequest.token = token;
+    pendingRequest.endpoint = endpoint;
+    this._checkPendingReady(guildID);
+  }
+
+  /**
+   * Called when the Client receives information about the voice state update.
+   * @param {String} guildID the ID of the Guild
+   * @param {String} sessionID the session id to authorise with
+   */
+  _receivedVoiceStateUpdate(guildID, sessionID) {
+    const pendingRequest = this.pending.get(guildID);
+    if (!pendingRequest) {
+      throw new Error('Guild not pending');
+    }
+    pendingRequest.sessionID = sessionID;
+    this._checkPendingReady(guildID);
+  }
+
+  /**
+   * Sends a request to the main gateway to join a voice channel
+   * @param {VoiceChannel} channel the channel to join
+   * @param {Object} [options] the options to provide
+   */
+  _sendWSJoin(channel, options = {}) {
+    options = mergeDefault({
+      guild_id: channel.guild.id,
+      channel_id: channel.id,
+      self_mute: false,
+      self_deaf: false,
+    }, options);
+    this.client.ws.send({
+      op: Constants.OPCodes.VOICE_STATE_UPDATE,
+      d: options,
+    });
+  }
+
+  /**
+   * Sets up a request to join a voice channel
+   * @param {VoiceChannel} channel the voice channel to join
+   * @returns {null}
+   */
+  joinChannel(channel) {
+    this.pending.set(channel.guild.id, {
+      channel,
+      sessionID: null,
+      token: null,
+      endpoint: null,
+    });
+    this._sendWSJoin(channel);
+  }
+}
+
+module.exports = ClientVoiceManager;