// Just to make it a bit easier on CodePen
const log = s => { document.querySelector('#log pre').innerHTML += s + '\n'  };
const delay = x => { 
	return new Promise(resolve => setTimeout(resolve, x*1000));
}

const makePromise = (name, secs, fail=false) => {
	return new Promise((resolve, reject) => {
		setTimeout(() => {
			if(!fail) { log(`Good result for ${name}`); resolve(`Resolve from ${name}`); }
			else { log(`Bad result for ${name}`); reject(`Fail from ${name}`); }
		}, secs * 100);
	});
}

(async () => {

	log('TEST ONE - Promise.all(all good)');
	let test = [
		makePromise('alpha', 3),
		makePromise('bob', 1),
		makePromise('charly', 3)
	];

	results = await Promise.all(test);	
	log('Results from test with Promise.all');
	log(JSON.stringify(results));

	log('\n\nTEST TWO  - Promise.all (one bad)');	
	test = [
		makePromise('alpha', 3),
		makePromise('failwhale', 1, true),
		makePromise('charly', 3)
	];

	try {
		let results = await Promise.all(test);
	} catch(e) {
		log(`Expected failure in test: ${e}`);
	}

	// Wait for previous stuff to wrap up
	await delay(3);

	//Alternate
	log('\n\nTEST TWO A - Promise.all (one bad), modified handler.');	
	Promise.all(test).then(results => log('all good')).catch(e => log('one bad'));
	
	// Wait for previous stuff to wrap up
	await delay(3);
	
	log('\n\nTEST THREE - Promise.allSettled (all good)');
	test = [
		makePromise('alpha', 3),
		makePromise('bob', 1),
		makePromise('charly', 3)
	];

	results = await Promise.allSettled(test);	
	log('Results from test with Promise.allSettled');
	log(JSON.stringify(results,null,'\t'));

	log('\n\nTEST FOUR - Promise.allSettled (one bad)');
	test = [
		makePromise('alpha', 3),
		makePromise('failwhale', 1, true),
		makePromise('charly', 3)
	];

	results = await Promise.allSettled(test);	
	log('Results from test with Promise.allSettled');
	log(JSON.stringify(results,null,'\t'));

	log('\n\nTEST FIVE - Promise.any(all good)');
	test = [
		makePromise('alpha', 3),
		makePromise('bob', 1),
		makePromise('charly', 3)
	];

	results = await Promise.any(test);	
	log('Results from test with Promise.any');
	log(results);
	
	await delay(3);

	log('\n\nTEST SIX - Promise.any(one bad)');
	test = [
		makePromise('alpha', 3),
		makePromise('bad bob', 1, true),
		makePromise('charly', 3)
	];

	results = await Promise.any(test);	
	log('Results from test with Promise.any');
	log(results);

	await delay(3);

	log('\n\nTEST SEVEN - Promise.any(all bad)');
	test = [
		makePromise('alpha', 3, true),
		makePromise('bad bob', 1, true),
		makePromise('charly', 3, true)
	];
	
	try {
		let results = await Promise.any(test);
		log(results);
	} catch(e) {
		log(`Expected failure in test: ${e}`);
		log(e.errors);
	}
	
	
	log('\n\nTEST RAY EIGHT - Promise.race(all good)');
	test = [
		makePromise('alpha', 3),
		makePromise('bob', 1),
		makePromise('charly', 3)
	];
	results = await Promise.race(test);	
	log('Results from test with Promise.race');
	log(results);

	await delay(3);

	log('\n\nTEST NINE - Promise.race(bad guy wins)');
	test = [
		makePromise('alpha', 3),
		makePromise('worst bob', 1, true),
		makePromise('charly', 3)
	];
	try {
		let results = await Promise.race(test);
	} catch(e) {
		log(`Expected failure in test: ${e}`);
	}

})();