const puppeteer = require('puppeteer');

const delay = (ms) => {
	return new Promise((resolve) => {
		setTimeout(resolve, ms);
	});
}

const scrapeInstance = async (link, page) => {
	await link.click();
	await page.waitForNavigation();

	const totalStudentsElem = await page.$('.instance-student-detail .students');
	const totalStudentsHTML = await totalStudentsElem.getProperty('innerHTML');
	const totalStudents = parseInt(await totalStudentsHTML.jsonValue());

	const droppedElem = await page.$('.instance-student-detail .dropped');
	const droppedHTML = await droppedElem.getProperty('innerHTML');
	const dropped = parseInt(await droppedHTML.jsonValue())

	const outcomes90elem = await page.$('.full-time-90-days-actuals')
	const outcomes90HTML = await outcomes90elem.getProperty('innerHTML');
	const outcomes90 = await outcomes90HTML.jsonValue();
	const outcomes90Numeric = parseInt(outcomes90.split(' ')[0])
	const outcomes90Percent = outcomes90.split(' ')[1].replace(/[()]/g, '')
	
	const instanceID = parseInt(page.url().match(/[0-9]*$/g)[0])

	const graduationElem = await page.$('.course-header__detail')
	const graduationHTML = await graduationElem.getProperty('innerHTML');
	const instanceHeaderText = await graduationHTML.jsonValue()
	const graduationDate = instanceHeaderText.split(' - ')[1].trim();

	console.log({ instanceID, graduationDate, totalStudents, dropped, outcomes90Numeric, outcomes90Percent });

	return page.goBack();
}

(async () => {
	const browser = await puppeteer.launch();
	const page = await browser.newPage();
	await page.goto('https://outcomes.generalassemb.ly/');
	await page.type('input[type="email"]', 'matt.huntington@generalassemb.ly');
	await page.click('button[type="submit"]');
	
	console.log('entered email');
	await page.waitForNavigation()
	await delay(500) //wtf
	
	await page.type('input[type="text"]', 'matt.huntington@generalassemb.ly');
	await page.type('input[type="password"]', 'Hunt!ngt0n80!');
	await page.click('input[type="submit"]');

	console.log('entered okta creds');
	await page.waitForSelector('div[data-se="okta_verify-push"] a');

	await page.click('div[data-se="okta_verify-push"] a');

	console.log('selected push notification');
	await page.waitForNavigation();
	await page.waitForSelector('#from');

	console.log('logged in');
	await page.type('#from', '01/01/2015');
	await page.click('input[value="Filter"]');

	console.log('filtering instances');
	await page.waitForNavigation();

	const instanceLinks = await page.$$('tr td:nth-child(2) a');

	for(instance of instanceLinks){
		await scrapeInstance(instance, page);
	}

	console.log('done');
	//await page.screenshot({ path: 'outcomes.png' })
	await browser.close();
})();