const request = require('request');

const url = 'https://www.supremenewyork.com/mobile_stock.json';
const url2 = 'https://www.supremenewyork.com/shop/';


var retryInterval = 2000;
var category = 'jackets';
var keyword = 'GORE-TEX court jacket';
var negativekeyword = 'leopard';
var colour = 'black';
var size = 'medium';
var itemId;


getDesiredId();

function getDesiredId() {

    console.log('Fetching Stock...');

    var p = new Promise((resolve, reject) => {

        //Do something until promise is fullfilled (resolve) or not fullfilled (rejected)

        var options = {
            method: 'GET',
            url: url
        };

        request(options, (error, response, body) => {
            var data = JSON.parse(body.toLowerCase());

            var items;

            switch(category.toLowerCase()) {
                case 'jackets':
                    items = data.products_and_categories.jackets;
                    break;
                case 'shirts':
                    items = data.products_and_categories.shirts;
                    break;
                case 'tops/sweaters':
                    items = data.products_and_categories.tops/sweaters;
                    break;
                case 'sweatshirts':
                    items = data.products_and_categories.sweatshirts;

                    break;
                case 'pants':
                    items = data.products_and_categories.pants;
                    break;
                case 'shorts':
                    items = data.products_and_categories.shorts;
                    break;
                case 't-shirts':
                    items = data.products_and_categories.t-shirts;
                    break;
                case 'hats':
                    items = data.products_and_categories.hats;
                    break;
                case 'bags':
                    items = data.products_and_categories.bags;
                    break;
                case 'accessories':
                    items = data.products_and_categories.accessories;
                    break;
                case 'skate':
                    items = data.products_and_categories.skate;
                    break;
                case 'new':
                    items = data.products_and_categories.new;
                    break;
               }



            for(var i = 0; i < items.length; i++) {
                if(items[i].name.toLowerCase().includes(keyword.toLowerCase())
                   && !items[i].name.toLowerCase().includes(negativekeyword.toLowerCase())) {
                    console.log(items[i].name);
                    console.log(items[i].id);
                    itemId = items[i].id;
                }
             }
             if(itemId != null) {
                 //item found, fullfill promise
                 resolve('ITEM FOUND');
             } else {
                 //item not found
                 reject('ITEM NOT FOUND, RUNNING AGAIN');
             }
        });

    });

    p.then((message) => {
        console.log(message);

        var options = {
          method: 'GET',
          url: url2 + itemId + '.json'
        };

        request(options, (error, response, body) => {
           var data = JSON.parse(body.toLowerCase());
           data = data.styles;

           var colourId;
           var sizes;
           var sizeId;

           for(var i = 0; i < data.length; i++) {
               if(data[i].name.toLowerCase().includes(colour.toLowerCase())) {
                   colourId = data[i].id;
                   console.log(data[i].name);
                   console.log(colourId);

                   sizes = data[i].sizes;

                   for(var j = 0; j < sizes.length; j++) {
                       if(sizes[j].name.toLowerCase().includes(size.toLowerCase())){
                           sizeId = sizes[j].id;
                           console.log(sizeId);
                        }
                    }
                }
            }
            addToCart(sizeId, colourId);
        });




    }).catch((message) => {
        console.log(message);
        setTimeout(getDesiredId, retryInterval);
    });
}


function addToCart(sizeId, colourId) {
    console.log('adding to cart...');

    var cookie;

    var p = new Promise((resolve, reject) => {

        console.log('https://supremenewyork.com/shop/' + itemId + '/add.json');

        console.log('s: ' + sizeId.toString());
        console.log('st: ' + colourId.toString());

        var options = {
            method: 'POST',
            url: 'https://www.supremenewyork.com/shop/' + itemId + '/add.json',
            qs: {
                's': sizeId.toString(),
                'st': colourId.toString(),
                'qty': 1
            },
            headers: {
                'Cache-Control': 'no-cache',
                'Connection': 'keep-alive',
                'content-length': '',
                'accept-encoding': 'gzip, deflate',
                'Host': 'www.supremenewyork.com',
                'Accept' : '*/*',
                'User-Agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3 like Mac OS X) AppleWebKit/602.1.50 (KHTML, like Gecko) Version/10.0 Mobile/14E277 Safari/602.1',
                'Content-Type': 'application/x-www-form-urlencoded' },
            form: false };

        request(options, (error, response, body) => {

            for(var i = 0; i < response.rawHeaders.length; i++) {
                if(response.rawHeaders[i] == 'Set-Cookie' && response.rawHeaders[i+1].includes('_supreme_sess')) {
                    cookie = response.rawHeaders[i];
                }
            }

            console.log(body);

            /*
            if(body == '[{"size_id":"' + sizeId + '","in_stock":true}]') {
                resolve('Added To Cart');
            } else if(body == '[]') {
                reject('Out Of Stock. Retrying...');
            }
            */


        });

    });

    p.then((message) => {
        console.log(message);
    }).catch((message) => {
        console.log(message);
        //setTimeout(addToCart, retryInterval);
    });

}