var os = require('os');
var ipc = require('ipc');
var $ = <JQueryStatic>require('jquery');
var app = require('remote').require('app');

export class ConsolePanel {
	messagescontainer: HTMLElement;

	constructor(element) {
		var panel = this;
		this.messagescontainer = <HTMLElement>document.getElementById('vorlonmessages');
		ipc.on("vorlonlog", function(args) {
			if (args.logs) {
				args.logs.forEach(function(log) {
					panel.appendLog(log);
				});
			}
		});

		ipc.on("vorlonStatus", function(args) {
			panel.messagescontainer.innerHTML = "";
			if (args.messages) {
				args.messages.forEach(function(log) {
					panel.appendLog(log);
				});
			}
		});
	}
	
	appendLog(log) {
		if (typeof log.args == "string") {
			this.appendLogEntry(log.level, log.args);
		}
		else if (log.args.length == 1) {
			this.appendLogEntry(log.level, log.args[0]);
		}
		else if (log.args.length > 1) {
			this.appendLogEntry(log.level, log.args[0]);
			for (var i = 1, l = log.args.length; i < l; i++) {
				this.appendLogEntry(log.level, log.args[i], true);
			}
		}
	}
	
	appendLogEntry(level, logtext, indent?) {
		if (!logtext)
			return;

		if (!(typeof logtext == "string")) {
			console.log(JSON.stringify(logtext));
			return;
		}

		var e = document.createElement("DIV");
		e.className = "log log-" + level + " " + (indent ? "indent" : "");
		var icon = document.createElement("I");
		icon.className = "dripicon " + classNameForLogLevel(level);
		e.appendChild(icon);
		var text = document.createElement("SPAN");
		text.className = "logtext";
		text.innerText = logtext.replace(/(?:\r\n|\r|\n)/g, '<br />');
		e.appendChild(text);

		this.messagescontainer.insertBefore(e, this.messagescontainer.firstChild);
		
		var maxentries = 500;
		if (this.messagescontainer.children.length > maxentries){
			for (var i=this.messagescontainer.children.length-1 ; i>maxentries; i--){
				this.messagescontainer.removeChild(this.messagescontainer.children[i]);
			}
		}
	}
}



function classNameForLogLevel(level) {
	if (level == "debug") {
		return "dripicon-preview";
	}
	else if (level == "warn") {
		return "dripicon-warning";
	}
	else if (level == "error") {
		return "dripicon-warning";
	}
	return "dripicon-information";
}