Added leave server and other stuff

src/Client/Client.js

@@ -226,6 +226,21 @@ class Client extends EventEmitter {
 				})
 		});
 	}
+	
+	leaveServer(server, callback=function(err){}){
+		var self = this;
+		return new Promise((resolve, reject) => {
+			
+			self.internal.leaveServer(server)
+				.then(() => {
+					callback(); resolve();
+				})
+				.catch(e => {
+					callback(e); reject(e);
+				})
+			
+		});
+	}
 }
 
 module.exports = Client;

src/Client/InternalClient.js

@@ -65,6 +65,36 @@ class InternalClient {
 		});
 	}
 	
+	//def leaveServer
+	leaveServer(srv) {
+		var self = this;
+		return new Promise((resolve, reject) => {
+			var server = self.resolver.resolveServer(srv);
+			if(server){
+				
+				request
+					.del(Endpoints.SERVER(server.id))
+					.set("authorization", self.token)
+					.end((err, res) => {
+						if(err){
+							reject(new Error(err.response.text));
+						}else{
+							// remove channels of server then the server
+							for(var chan of server.channels){
+								server.channels.remove(chan);
+							}
+							// remove server
+							self.servers.remove(server);
+							resolve();
+						}
+					});
+				
+			}else{
+				reject(new Error("server did not resolve"));
+			}
+		});
+	}
+	
 	// def login
 	login(email, password) {
 		var self = this;

src/Client/Resolver/Resolver.js

@@ -15,6 +15,21 @@ class Resolver {
 	constructor(internal) {
 		this.internal = internal;
 	}
+	
+	resolveServer(resource){
+		if(resource instanceof Server){
+			return resource;
+		}else if(resource instanceof ServerChannel){
+			return resource.server;
+		}else if(resource instanceof String || typeof resource === "string"){
+			return this.internal.servers.get("id", resource);
+		}else if(resource instanceof Message){
+			if(resource.channel instanceof TextChannel){
+				return resource.server;
+			}
+		}
+		return null;
+	}
 
 	resolveFile(resource) {
 		if (typeof resource === "string" || resource instanceof String) {

src/Structures/Server.js

@@ -41,10 +41,10 @@ class Server extends Equality {
 		
 		data.channels.forEach( (dataChannel) => {
 			if(dataChannel.type === "text"){
-				var channel = client.internal.channels.add(new TextChannel(dataChannel, client));
+				var channel = client.internal.channels.add(new TextChannel(dataChannel, client, this));
 				this.channels.add(channel);
 			}else{
-				var channel = client.internal.channels.add(new VoiceChannel(dataChannel, client));
+				var channel = client.internal.channels.add(new VoiceChannel(dataChannel, client, this));
 				this.channels.add(channel);
 			}
 		} );

src/Structures/ServerChannel.js

@@ -5,11 +5,12 @@ var Cache = require("../Util/Cache.js");
 var PermissionOverwrite = require("./PermissionOverwrite.js");
 
 class ServerChannel extends Channel{
-	constructor(data, client){
+	constructor(data, client, server){
 		super(data, client);
 		this.name = data.name;
 		this.type = data.type;
 		this.permissionOverwrites = new Cache();
+		this.server = server;
 		data.permission_overwrites.forEach((permission) => {
 			this.permissionOverwrites.add( new PermissionOverwrite(permission) );
 		});

src/Structures/TextChannel.js

@@ -4,8 +4,8 @@ var ServerChannel = require("./ServerChannel.js");
 var Cache = require("../Util/Cache.js");
 
 class TextChannel extends ServerChannel{
-	constructor(data, client){
-		super(data, client);
+	constructor(data, client, server){
+		super(data, client, server);
 		
 		this.name = data.name;
 		this.topic = data.topic;

src/Structures/VoiceChannel.js

@@ -3,8 +3,8 @@
 var ServerChannel = require("./ServerChannel.js");
 
 class VoiceChannel extends ServerChannel{
-	constructor(data, client){
-		super(data, client);
+	constructor(data, client, server){
+		super(data, client, server);
 	}
 }