pubsub

pubsub.js

@@ -1,11 +1,43 @@
-const app = require('./app');
+class PubSub{
+	constructor(){
+		this.topics = {};
+	}
 
-app.p2p.onData(function(data){
-	console.log('app, data:', data)
-})
+	subscribe(topic, listener) {
+		if(topic instanceof RegExp){
+			listener.match = topic;
+			topic = "__REGEX__";
+		}
 
+		// create the topic if not yet created
+		if(!this.topics[topic]) this.topics[topic] = [];
 
-setTimeout(function(){
-	app.p2p.broadcast({type:'topic', body:"yolo"})
-}, 10000);
+		// add the listener
+		this.topics[topic].push(listener);
+	}
 
+	matchTopics(topic){
+		let topics = [... this.topics[topic] ? this.topics[topic] : []]
+
+		// console.log(this.topics)
+		if(!this.topics['__REGEX__']) return topics;
+
+		for(let listener of this.topics['__REGEX__']){
+			if(topic.match(listener.match)) topics.push(listener);
+		}
+
+		return topics;
+	}
+
+	publish(topic, data) {
+
+		// send the event to all listeners
+		this.matchTopics(topic).forEach(function(listener) {
+			setTimeout(function(data, topic){
+					listener(data || {}, topic);
+				}, 0, data, topic);
+		});
+	}
+}
+
+module.exports = {PubSub};