'use strict';

var express = require('express');
var router = express.Router();
var extend = require('node.extend');
var redis = require("redis");
var client = redis.createClient();
var request = require('request');
var lxc = require('../lxc');


var timeoutEvents = {};
var ip2name = {};

var lxcTimeout = function(ip, time){
	var name = ip2name[ip];
	console.log(name)
	time = time || 900000; // 15 minutes
	var keys = Object.keys(timeoutEvents)
	if(keys.indexOf(name) !== -1){
		clearTimeout(timeoutEvents[name])
	}
	timeoutEvents[name] = setTimeout(function(){
		console.log('killing:', name)
		lxc.stop(name);
	}, time);
}


var runner = function(req, res, ip){
	lxcTimeout(ip);
	return request.post({url:'http://'+ip, form: req.body}, function(error, response, body){
		body = JSON.parse(body);
		body['ip'] = ip.replace('10.0.', '');
		return res.json(body);
	});
};

var addToRedis = function(){
	lxc.info(req.params.name, null, function(data){
			var domain = req.query.domain || 'vm42.us';
			domain = req.params.name+'.'+domain;
			client.SADD("hosts", domain, function(){});
			
			var ip = data.ip + ':5000';
			client.HSET(domain, "ip", ip, redis.print);
			client.HSET(domain, "updated", (new Date).getTime(), redis.print);
			client.hset(domain, "include", "proxy.include");
			return res.json({status: 200, info: data});
	 });
};

router.get('/start/:name', function(req, res, next){
	return lxc.start(req.params.name, function(data){
		console.log('start', arguments);
		if(!data){
			return res.json({status: 500, name: req.params.name, message: data});
		}else{
			res.json({});
		}
	});
});

router.get('/live/:template/:name', function(req, res, next){
	return lxc.startEphemeral(req.params.name, req.params.template, function (data) {
		console.log('live', arguments);
		return res.json(data);
	});
});

router.get('/stop/:name', function(req, res, next){
	return lxc.stop(req.params.name, function(data){
		console.log('stop', arguments);
		if(data){
			return res.json({status: 500, name: req.params.name, message: data});
		}else{
			return res.json({status: 200});
		}
	});
});

router.get('/clone/:template/:name', function(req, res, next){
	return lxc.clone(req.params.name, req.params.template, function(data){
		console.log('clone', arguments);
		if( data.match(/Created container/) ){
			return res.json({status: 200});
		}else{
			return res.json({status: 500, message: data});
		}
	});
});

router.get('/destroy/:name', function(req, res, next){
	return lxc.destroy(req.params.name, function(data){
		console.log('destroy', arguments);
		if(data){
			return res.json({status: 500, message: data});
		}else{
			return res.json({status: 200});
		}
	});
});

router.get('/info/:name', function(req, res, next){
	return lxc.info(req.params.name, function(data){
		return res.json(data);
	});
});

router.get('/list', function(req, res, next) {
	return lxc.list(function(data){
		return res.json(data);
	});
});

router.post('/run/:ip?', function doRun(req, res, next){
	// check if server is

	return lxc.list(function(data){
		if(!req.params.ip) data = [];
		var ip = '10.0.'+ req.params.ip;
		var found = false;

		for(var idx=data.length; idx--;){
			if( data[idx]['ipv4'] === ip ){
				found = true;
				break;
			}
		}

		if(found){
			return runner(req, res, ip)
		}else{
			var name = 'crunner-'+(Math.random()*100).toString().replace('.','');
			return lxc.startEphemeral(name, 'crunner', function(data){
				ip2name[data.ip] = name;
				return runner(req, res, data.ip);
			});
		}
	});

});

module.exports = router;