var request = require('request');
var cheerio = require('cheerio');
// var app = express();
// var cors = require('cors');


// app.use(cors());

//app.addHeader("Access-Control-Allow-Origin", "*");
module.exports = async function (req, res) {
	// // res.header('Access-Control-Allow-Origin', '*');
	
	// //
	// // Because I couldn't find a good source for colorpalette ids on colorhunt,
	// // the below function generates a random number from 0 - 10000 and sees if it matches
	// // a color palette code, and calls the function recursively if it doesn't.
	// // 
	// // This means its usually making several calls before returning data.
	// //
	// function getColorJson(url) {
	
	// 	// Loads in colorhunt url via request
	// 	request(url, function(error, _, html) {

	// 		if(!error){

	// 			// Parses html via cheerioJS
				
	// 			var $ = cheerio.load(html);

	// 			var json = {
	// 				id: "",
	// 				code: "",
	// 				date: "",
	// 				likes: "",
	// 				c1: "",
	// 				c2: "",
	// 				c3: "",
	// 				c4: ""
	// 			};
				
	// 			var script = $('#jscode').next().html();
				
	// 			// Finds our string of data on the page
	// 			// -- or returns "-1" to itemerIndex if the random code guess doesn't work
	// 			var itemerIndex = script.search("itemer");  
				
	// 			if (itemerIndex === -1) {
	// 					console.log(url + " didn't work.");
	// 					url = Math.floor(Math.random() * 100000).toString();
	// 					getColorJson('http://colorhunt.co/c/' + url);
	// 					return;
	// 			}
				
	// 			var itemerString = script.substr(itemerIndex, itemerIndex + 100);
				
	// 			var itemer = itemerString.split("'");
	// 			//console.log(itemer);
				
	// 			json.id = itemer[1];
	// 			json.code = itemer[3];
	// 			json.date = itemer[5];
	// 			json.likes = itemer[7];
	// 			json.c1 = "#" + json.code.substring(0,6); 
	// 			json.c2 = "#" + json.code.substring(6,12); 
	// 			json.c3 = "#" + json.code.substring(12,18); 
	// 			json.c4 = "#" + json.code.substring(18,24);

	// 			console.log("The code " + json.id + " worked!");
	// 			res.json(json);
	// 			return;
	// 		} else {
	// 			console.log("Error on request: ")
	// 			console.log(error);
	// 		}

	// 	})
	// }

	// // Generates first color code and initializes recursive function.
	// var url = Math.floor(Math.random() * 100000).toString();
	// getColorJson('http://colorhunt.co/c/' + url);

	res.end(await getRandom());
};



function getRandom() {
	return new Promise(resolve => {
		request({
			url: 'http://colorhunt.co/hunt.php',
			form: {
				step: '1',
				sort: 'random',
				tags: ''
			}
		}, function(error, res, body) {
			resolve(body);
		})
	});
}