(() => {
	const fs = require('fs');
	const KEYS_FILE_PATH = 'C:\\Users\\Will\\Desktop\\donation-notifications\\keys\\ids.json';
	const CHANNEL_NAME = "11111011101";
	const MAX_DONATION_CHECK = 100;
	const POLL_RATE = 4000;
	const TRANSITION_TIME = 2000;
	const STALL_TIME = 4500;
	const DONATION_TEXT_1 = " just donated ";
	const DONATION_TEXT_2 = " and says ";

	// get client id and client secret from local file
	let keys = JSON.parse(fs.readFileSync(KEYS_FILE_PATH, 'utf-8'));

	// get keys from the file
	let clientId = keys['clientId'];
	let clientSecret = keys['clientSecret'];
	let username = keys['username'];
	let password = keys['password'];
	let signature = keys['signature'];

	// get a reference to the paypal sdk
	let paypal = require('paypal-rest-sdk');
	paypal.configure({
		'mode':'sandbox',
		'client_id': clientId,
		'clientSecret' : clientSecret
	});

	const https = require("https");
	const qs = require("querystring");

	let currentMs = Date.now();
	let currentMsMinusPollRate = currentMs - 1000000000;
	let startDate = (new Date(currentMsMinusPollRate)).toISOString();
	let endDate = (new Date(currentMs)).toISOString();

	const params = {
		'user': username,
		'pwd': password,
		'signature': signature,
		'method':'TransactionSearch',
		'version':'78',
		'trxtype':'Q',
		'startdate': startDate,
		'enddate': endDate
	};

	const options = {
		hostname : "api-3t.sandbox.paypal.com",
		port: 443,
		path: '/nvp/?'+qs.stringify(params),
		method : 'GET'
	};

	const req = https.request(options,(res)=>{

		let totalBuffer = '';

		res.on("data",(buffer)=>{

			totalBuffer += buffer;

		});

		res.on("end", ()=>{

			let parsedResponse = qs.parse(totalBuffer);

			// get transaction ids
			let ids = Object.entries(parsedResponse)
			.filter(([s])=>s.includes("TRANSACTIONID"))
			.map(([,v])=>v);

			for(const x in ids){
				getTransactionDetails(ids[x]);
			}

			totalBuffer = '';
		});

	});

	req.end();

	function getTransactionDetails(id){

		const params = {
			'user': username,
			'pwd': password,
			'signature': signature,
			'method':'GetTransactionDetails',
			'version':'78',
			'trxtype':'Q',
			'transactionid': id
		};

		const options = {
			hostname : "api-3t.sandbox.paypal.com",
			port: 443,
			path: '/nvp?'+qs.stringify(params),
			method : 'GET'
		};

		console.log("???");
		const req2 = https.request(options,(res)=>{

			let totalBuffer = '';

			console.log("???");

			res.on("data",(buffer)=>{
				console.log("???");

				totalBuffer += buffer;

			});

			res.on("end", ()=>{

				console.log("???");

				//let parsedResponse = qs.parse(totalBuffer);

				//console.log(parsedResponse);

				// get relevant transaction information
				//console.log(parsedResponse['INVNUM']);
				//console.log(parsedResponse['CUSTOM']);

				totalBuffer = '';
			});

		});
	}

			/*
	// continuously poll the Paypal API for a list of
	// the most recent 100 transactions
	let recentTransactionIDs = [];

	// donation alert sound
	let donationSound = new Audio();
	donationSound.src = "sounds\\illuminatiSound (mp3cut.net).mp3";

	// initialize the donation list with an initial paypal api call
	// for the donation list
	// for now we'll use an empty initial list

	// call the api every few seconds and check the new donation list
	// against the old donation list


	// initial start & end query dates
	let currentMs = Date.now();
	let currentMsMinusPollRate = currentMs - POLL_RATE;
	let startDate = (new Date(currentMsMinusPollRate)).toISOString();
	let endDate = (new Date(currentMs)).toISOString();

	let recentDonationIDs = {};

	let notAnimating = true;
	function checkDonations(){

		// get appropriate start date and end date
		startDate = endDate;
		endDate = (new Date()).toISOString();

		const params = {
			'user': username,
			'pwd': password,
			'signature': signature,
			'method':'TransactionSearch',
			'version':'78',
			'trxtype':'Q',
			'startdate': startDate,
			'enddate': endDate
		};

		const options = {
			hostname : "api-3t.sandbox.paypal.com",
			port: 443,
			path: '/nvp/?'+qs.stringify(params),
			method : 'GET'
		}

		const req = https.request(options,(res)=>{

			let totalBuffer;

			res.on("data",(buffer)=>{

				totalBuffer += buffer;

			})

			res.on("end", ()=>{

				// parse response for list of transaction IDs
				let parsedResponse = qs.parse(totalBuffer);

				// get transaction IDs
				let newList = Object.entries(parsedResponse)
				.filter(([s])=>s.includes("TRANSACTIONID"))
				.map(([,v])=>v));

				// compare the new list to the old list
				// and find any differences
				let count = 0;
				let newDonationStack = [];
				while(count < MAX_DONATION_CHECK){
					let newID = newList[count];
					if(recentDonationIDs.has(newID))
						break;
					else{
						recentDonationIDs.add(newDonation);

						// get more transation details from
						// Paypal and in the callback push
						// those details as a new donation object
						// to the donation stack
						newID
						-->newDonationStack.push(newDonation);

						++count;
					}
				}

				if(newDonationStack.length && notAnimating){
					handleAnimations();
					notAnimating = false;
				}

				// recursively display an animation for each new donation
				function handleAnimations(){

					if(newDonationStack.length){

						// set the donation alert name
						let theDonation = newDonationStack.pop();
						let theText = document.getElementById('followerText');
						theText.textContent = theName+DONATION_TEXT_1+"$"+
						theDonation.amount+DONATION_TEXT_2+theDonation.message;

						// transition the donation alert into view
						let theDonationAlert = document.getElementById('donationAlert');
						donationAlert.classList.add('isVisible');

						// play the current alert sound
						donationSound.setTime = 0.00;
						donationSound.play();

						// transition the follower alert out of view
						setTimeout(transitionAlert, TRANSITION_TIME+STALL_TIME);

						function transitionAlert(){

							// begin animation to remove the follower alert
							donationAlert.classList.remove('isVisible');

							// setup the next alert
							setTimeout(() => {
								if(!newDonationStack.length)
									notAnimating = true;
								handleAnimations();}, TRANSITION_TIME);

						}

					}

				}

				totalBuffer = "";

				console.log("done");
			})

		});


	}

	setInterval(checkDonations, POLL_RATE);
*/
})()