fix(core): update

ts/smartuniverse.classes.clientuniverse.ts

@@ -36,6 +36,12 @@ export class ClientUniverse {
    * TODO: verify channel before adding it to the channel cache
    */
   public async addChannel (channelNameArg: string, passphraseArg: string) {
+    const existingChannel = this.getChannel(channelNameArg);
+
+    if (existingChannel) {
+      throw new Error('channel exists');
+    }
+
     const clientUniverseChannel = await ClientUniverseChannel.createClientUniverseChannel(
       this,
       channelNameArg,
@@ -49,8 +55,11 @@ export class ClientUniverse {
    * @param channelName
    * @param passphraseArg 
    */
-  public async getChannel(channelName: string, passphraseArg?: string): Promise<ClientUniverseChannel> {
+  public async getChannel(channelName: string): Promise<ClientUniverseChannel> {
     await this.checkConnection();
+    const clientUniverseChannel = this.channelCache.find(channel => {
+      return channel.name === channelName;
+    })
     return clientUniverseChannel;
   }
 

ts/smartuniverse.classes.clientuniversechannel.ts

@@ -21,11 +21,16 @@ export class ClientUniverseChannel implements interfaces.IUniverseChannel {
   // INSTANCE
   // ========
 
-  public clientUniverse: ClientUniverse;
+  // properties
+  public name: string;
   public passphrase: string;
-
-  constructor(clientUniverseArg: ClientUniverse, passphraseArg: string) {
+  
+  // refs
+  public clientUniverse: ClientUniverse;
+  
+  constructor(clientUniverseArg: ClientUniverse, nameArg: string,  passphraseArg: string) {
     this.clientUniverse = clientUniverseArg;
+    this.name = nameArg;
     this.passphrase = passphraseArg;
   }