Added resolver

src/Client/Resolver/Resolver.js

@@ -0,0 +1,83 @@
+"use strict";
+
+var User = require("../../Structures/User.js"),
+	Channel = require("../../Structures/Channel.js"),
+	TextChannel = require("../../Structures/TextChannel.js"),
+	VoiceChannel = require("../../Structures/VoiceChannel.js"),
+	PMChannel = require("../../Structures/PMChannel.js"),
+	Server = require("../../Structures/Server.js"),
+	Message = require("../../Structures/Message.js");
+
+class Resolver {
+	constructor(client) {
+		this.client = client;
+	}
+	
+	resolveUser(resource) {
+		/*
+			accepts a Message, Channel, Server, String ID, User, PMChannel
+		*/
+		var found = null;
+		if(resource instanceof Message){
+			found = resource.author;
+		}else if(resource instanceof TextChannel){
+			var lmsg = resource.lastMessage;
+			if(lmsg){
+				found = lmsg.author;
+			}
+		}else if(resource instanceof Server){
+			found = resource.owner;
+		}else if(resource instanceof PMChannel){
+			found = resource.recipient;
+		}else if(resource instanceof String || typeof resource === "string"){
+			found = this.client.internal.users.get("id", resource);
+		}
+		
+		return found;
+	}
+
+	resolveChannel(resource) {
+		/*
+			accepts a Message, Channel, Server, String ID, User
+		 */
+		var self = this;
+
+		return new Promise((resolve, reject) => {
+			var found = null;
+			if (resource instanceof Message) {
+				found = resource.channel;
+			} else if (resource instanceof Channel) {
+				found = resource;
+			} else if (resource instanceof Server) {
+				found = resource.channels.get("id", resource.id);
+			} else if (resource instanceof String || typeof resource === "string") {
+				found = self.client.internal.channels.get("id", resource);
+			} else if (resource instanceof User) {
+				// see if a PM exists
+				var chatFound = false;
+				for(var pmchat of self.client.internal.private_channels){
+					if(pmchat.recipient.equals(resource)){
+						chatFound = pmchat;
+						break;
+					}
+				}
+				if(chatFound){
+					// a PM already exists!
+					found = chatFound;
+				}else{
+					// PM does not exist :\
+					self.client.internal.startPM(resource)
+						.then( pmchannel => resolve(pmchannel) )
+						.catch( e => reject(e) );
+					return;
+				}
+			}
+			if(found)
+				resolve(found);
+			else
+				reject();
+		});
+
+	}
+}
+module.exports = Resolver;