const DiscordRPC = require("discord-rpc");
const fs = require('fs');

const ClientId = '513142289510694912';

DiscordRPC.register(ClientId);

const rpc = new DiscordRPC.Client({ transport: 'ipc' });

let currentMeters = 1700;
let currentLevel = 2;
let currentState = "Forest of Temptation"

function saveState() {
	fs.writeFile("state.dat", currentMeters.toString(), function(err) {
	    if(err) {
	        return console.log(err);
	    }
	});
}

function loadState() {
	try {
		loadState();
		console.log("loaded state")
	}
	catch (error) {
		console.log("no saved state, starting from beginning");
	}
	fs.readFile('state.dat', 'utf8', function(err, contents) {
    	currentMeters = parseInt(contents);
	});
}

function numberWithCommas(x) {
  return Math.round(x).toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

function setStates() {
	if (1351 < currentMeters < 2600) {
		currentLevel = 2;
		currentState = "Forest of Temptation";
	}
	else if (2601 < currentMeters < 7000) {
		currentLevel = 3;
		currentState = "Great Fault";
	}
	else if (7001 < currentMeters < 12000) {
		currentLevel = 4;
		currentState = "The Goblets of Giants";
	}
	else if (12001 < currentMeters < 13000) {
		currentLevel = 5;
		currentState = "Sea of Corpses";
	}
	else if (13001 < currentMeters < 15500) {
		currentLevel = 6;
		currentState = "The Capital of the Unreturned";
	}
	else if (15501 < currentMeters < 20000) {
		currentLevel = 7;
		currentState = "The Final Maelstrom";
	}
	else {
		currentLevel = 8;
		currentState = "The Deepest Point";
	}
}

function doRPC() {
	setStates();
	rpc.setActivity({
	    details: "Level " + currentLevel + " | " + numberWithCommas(currentMeters) + " meters",
	    state: currentState,
	    largeImageKey: 'made-in-abyss-riko',
	    largeImageText: 'Riko',
	    smallImageKey: 'white-whitle-large',
	    smallImageText: 'White Whistle',
	    instance: true,
  	});
}

rpc.on('ready', () => {
  console.log("ready");
  try {
  	loadState();
  }
  catch (error) {
  	console.log("no saved state, starting from beginning");
  }
  doRPC();
});

console.log("logging in");
rpc.login(ClientId).catch(console.error);
console.log("logged in");


setInterval(() => {
	console.log("updating rpc...")
	currentMeters += (Math.random() * 101);
	doRPC();
	console.log("updated rpc! | Level " + currentLevel + " | " + numberWithCommas(currentMeters) + " meters");
	saveState();
}, 300000)