const fs = require('fs');
const ini = require('ini');
const mastodon = require('mastodon');
const mqtt = require('mqtt');
const request = require('request');
let Parser = require('rss-parser');
let parser = new Parser();
const xmpp = require('simple-xmpp');

const config = ini.parse(fs.readFileSync('./config.ini', 'utf-8'));
const api_pass = config.api_pass;
const api_url = config.api_url;
const api_user = config.api_user;
const app_port = config.app_port;
const asterisk_callfrom = config.asterisk_callfrom;
const asterisk_callto = config.asterisk_callerto;
const asterisk_callerID = config.asterisk_callerID;
const asterisk_context = config.asterisk_context;
const asterisk_host = config.asterisk_host;
const asterisk_password = config.asterisk_password;
const asterisk_port = config.asterisk_port;
const asterisk_user = config.asterisk_user;
const bot_hostname = config.bot_hostname;
const bot_jid = config.bot_jid;
const bot_password = config.bot_password;
const bot_port = config.bot_port;
const city_code = config.city_code;
const city_name = config.city_name;
const gotify_api_key = config.gotify_api_key;
const gotify_message = config.gotify_message;
const gotify_priority = config.gotify_priority;
const gotify_title = config.gotify_title;
const gotify_url = config.gotify_url;
const mastodon_token = config.mastodon_token;
const mastodon_toot = config.mastodon_toot;
const mastodon_url = config.mastodon_url;
const mqtt_message = config.mqtt_message;
const mqtt_password = config.mqtt_password;
const mqtt_server = config.mqtt_server;
const mqtt_topic = config.mqtt_topic;
const mqtt_user = config.mqtt_user;
const rpc_url = config.rpc_url;
const rss_url = config.rss_url;
const user_jid = config.user_jid;
const user_name = config.user_name;
const vfc_url = config.vfc_url;
const weather_api_key = config.weather_api_key;
const weather_units = config.weather_units;

// thx: https://stackoverflow.com/questions/48750528/get-direction-from-degrees
function getDirection(angle) {
    var directions = ['North', 'North-East', 'East', 'South-East', 'South', 'South-West', 'West', 'North-West'];
    var index = Math.round(((angle %= 360) < 0 ? angle + 360 : angle) / 45) % 8;
    return directions[index];
}

var ami = new require('asterisk-manager')(asterisk_port, asterisk_host, asterisk_user, asterisk_password, false);
let weather_url = `https://api.openweathermap.org/data/2.5/weather?id=${city_code}&appid=${weather_api_key}&units=${weather_units}`
var client = mqtt.connect('tcp://' + mqtt_user + ':' + mqtt_password + '@' + mqtt_server);
var M = new mastodon({
	access_token: `${mastodon_token}`,
	timeout_ms: 60*1000,
	api_url: `${mastodon_url}`,
})
// Once we're online, we'll send a message alerting admins
xmpp.on('online', function(data, to) {
	console.log('Connected with JID: ' + data.jid.user);
	xmpp.send(user_jid, "[ONLINE]", false);
	client.publish(mqtt_topic, mqtt_message);
	M.post('statuses', { status: `${mastodon_toot}` });
});

xmpp.on('chat', function(from, message) {

	// HELP
	if (message === 'help' || message === 'Help') {
		xmpp.send(from, 'https://wiki.vanderwarker.family/doku.php?id=code:vxmppb:commands');
		console.log('help');
	}

	// UNLOCKS
	else if (message === 'unlocks' || message === 'Unlocks') {
		var d = new Date();
		var weekday = new Array(7);
		weekday[0] =  "Sunday";
		weekday[1] = "Monday";
		weekday[2] = "Tuesday";
		weekday[3] = "Wednesday";
		weekday[4] = "Thursday";
		weekday[5] = "Friday";
		weekday[6] = "Saturday";
		var n = weekday[d.getDay()];

		request(api_url + "?columns=" + n, (error, res, body) => {
		if (error) {
			return  console.log(error)
		};

		if (!error && res.statusCode == 200) {
			var ulb = new RegExp(':(.*)}');
			var ule = body.match(ulb);
			const ur = user_name + " has " + ule[1] + " unlocks for " + n;
			xmpp.send(from, ur);
			console.log(ur);
		}
		if (!error && res.statusCode == 401) {
			console.log('Invalid credentials');
			xmpp.send(from, 'Invalid credentials');
		}
		if (!error && res.statusCode == 404) {
			console.log('Record not found');
			xmpp.send(from, 'Record not found');
		}
		if (!error && res.statusCode == 500) {
			console.log('Server error.');
			xmpp.send(from, 'Server error. Please ping admin');
		}
	});
	console.log('unlocks');
	}

	// Check VFC balance
	else if (message === "vfc" || message === "Vfc") {
		ami.action({
			'action':'originate',
			'channel':'SIP/' + asterisk_callfrom,
			'context': asterisk_context,
			'callerID' : asterisk_callerID,
			'exten' : asterisk_callto,
			'priority' : '1',
		});
		request(vfc_url, (error, res, body) => {
			if (error) {
				return console.log(error)
			};

			if (!error && res.statusCode == 200) {
				const balance = user_name + " has " + res.body + " VFC";
				xmpp.send(from, balance);
				console.log(balance);
			}
		});
		console.log('vfc');
	}

	// Get latest RSS item from feed
	else if (message === "rss" || message === "Rss") {
		(async () => {
		let feed = await parser.parseURL(rss_url);
		// console.log(feed.title);
		feed.items.forEach(item => {
			console.log(item.title + ':' + item.link)
			xmpp.send(from, item.title)
		});
		xmpp.send(from, 'See https://vanderwarker.social/@stephen for full entries.')
	})();
	}

	// Ping a user to let them know you would like to communitcate
	else if (message === "ping" || message === 'Ping') {
		xmpp.send(from, "Pinging " + user_name + "! Please stand by.");
		xmpp.send(user_jid, from + " has pinged you!");
		client.publish(mqtt_topic, from + ' has pinged you!');
		ami.action({
			'action':'originate',
			'channel':'SIP/' + asterisk_callfrom,
			'context': asterisk_context,
			'callerID' : asterisk_callerID,
			'data': 'googletts.agi, \"hello. ' + from + ' has pinged you!\"',
			'application': 'agi'
		});
		console.log('ping');
		let guf  = `${gotify_url}/message?token=${gotify_api_key}&message=${from} ${gotify_message}&title=${gotify_title}&priority=${gotify_priority}`;
		let gufe = encodeURI(guf);
		request.post(gufe, function (err, response, body) {
			if(err){
				console.log('error:', err);
			}
		});
	}

	// Check the weather using weatherunderground API
	else if (message === "weather" || message === 'Weather') {
		xmpp.send(from, "Checking weather. Please hold...\r\n \r\n");
		request(weather_url, function (err, response, body) {
			if(err){
				console.log('error:', err);
			} else {
				let w = JSON.parse(body);
				let wm = city_name + " Weather: \r\n Tempature: " + w.main.temp + " degrees. \r\n Conditions: " + w.weather[0].main + "\r\n Pressure: " +
				w.main.pressure + " \r\n Wind Direction: " + getDirection(w.wind.deg) + "\r\n Wind Speed: " + w.wind.speed + " m.p.h. \r\n";
				let wmc = city_name + " Weather: Tempature: " + w.main.temp + " degrees. Conditions: " + w.weather[0].main + ". Pressure: " +
				w.main.pressure + ". Wind Direction: " + getDirection(w.wind.deg) + ". Wind Speed: " + w.wind.speed + " miles per hour \r\n";
				console.log(wm);
				client.publish('weather/temp', 'w.main.temp');
				client.publish('weather/conditions', 'w.weather[0].main');
				client.publish('weather/pressure', 'w.main.pressure');
				client.publish('weather/wind/direction', 'getDirection(w.wind.deg)');
				client.publish('weather/wind/speed', 'w.wind.speed');
				xmpp.send(from, wm);
				/*
				ami.action({
					'action':'originate',
					'channel':'SIP/' + asterisk_callfrom,
					'context': asterisk_context,
					'callerID' : asterisk_callerID,
					'data': 'googletts.agi,' + wmc,
					'application': 'agi'
				});
				*/
			}
		});
		console.log('weather');
	}

	// Sends a nice goodbye message
	else if (message === 'bye' || message === "Bye"){
		xmpp.send(from, "Bye, have a beautiful time!");
		console.log('bye');
		
	} 
	// Shutsdown bot if admin messages "goodbye"
	else if (message === "goodbye" || from === user_jid){
			xmpp.send(from, "Alrighty, shutting down. Goodbye!");
			console.log('Admin shutdown.');
			process.exit(1);
	}

	// Get users vCard (WIP)
	else if (message === 'vcard' && from === user_jid){
		xmpp.getVCard(from, function (vcard) {
			xmpp.send(from, vcard);
			console.log(vcard)
		})
	}

	// If the user sends something we don't have logic for, send them info about the project
	else {		xmpp.send(from, "This is an auto replying bot. Reply \"help\" for more info, or https://wiki.vanderwarker.family/doku.php?id=code:vxmppb:start");
		console.log('autoreply');
	}
});

//  Catch and log XMPP errors
xmpp.on('error', function(err) {
console.error(err);
});

// EXTENDING XEPS (WIP)
/*
xmpp.on('chatstate', function(from, state) {
console.log(state);
});

xmpp.on('buddy', function(jid, state, statusText, resource) {
console.log(state + statusText + resource);
});
*/

// Alas, we connect to XMPP!
xmpp.connect({
	jid: bot_jid,
	password: bot_password,
	host: bot_hostname,
	port: bot_port
});

// Checks the XMPP server for new 'friend' requests
console.log(xmpp.getRoster());