!function() {
    var d = document,
        w = window,
        conf = {
            lang: 'en',
            url: 'https%3A%2F%2Fwww.wiseessays.com%2Forder%3F__utmla%3Dc2b61518b3bc4df8199c43c641daf09b',
            containerId: 'myIdContainer2',
            component: 'type2',
            exposition: '',
            addStyle: function(href) {
                var d = document,
                s = d.createElement('link');

                s.rel = 'stylesheet';
                s.type = 'text/css';
                s.href = href;
                d.head.appendChild(s);
            },
            addScript: function(src) {
                var d = document,
                s = d.createElement('script');

                s.src = src;
                d.body.appendChild(s);
            },
            addTemplate: function(path) {
                var c = document.getElementById(this.containerId);
                c.innerHTML = path;
            }
        };

    conf.addStyle('https://www.dsa7.net/css/app.css');
    conf.addTemplate('<form class="m-prtnrsForm06 " name="601cba3646571" action="https://www.wiseessays.com/order?__utmla=c2b61518b3bc4df8199c43c641daf09b" method="get" enctype="multipart/form-data"       novalidate>     <input type="hidden" name="__utmla" value="c2b61518b3bc4df8199c43c641daf09b">     <input type="hidden" name="ch" value="">     <input type="hidden" name="component" value="type2">     <input class="m-prtnrsForm06__discount" type="hidden" name="pp[discount]" value="">     <div class="m-prtnrsForm06__header">Price calculator</div>     <div class="m-prtnrsForm06__desc">We`ve got the best prices, check out yourself!</div>     <div class="m-prtnrsForm06__container">         <div class="m-prtnrsForm06__row">             <select id="type-601cba3646571" class="m-prtnrsForm06__select" name="pp[type]" required title="Select doctype">                 <option value="">Select type of assignment</option>             </select>         </div>         <div class="m-prtnrsForm06__row">             <select id="level-601cba3646571" class="m-prtnrsForm06__select" name="pp[level]" required title="Select academic level">                 <option value="">Select level</option>             </select>         </div>         <div class="m-prtnrsForm06__panels">             <div class="m-prtnrsForm06__row" style="">                 <div class="m-prtnrsForm06__panel">                     <div class="m-prtnrsForm06__inputLabel">Urgency</div>                 </div>                 <div class="m-prtnrsForm06__panel">                     <select id="urgency-601cba3646571" class="m-prtnrsForm06__select" name="pp[urgency]" required title="Select urgency">                         <option value="">Select urgency</option>                     </select>                 </div>             </div>             <div class="m-prtnrsForm06__row" style="">                 <div class="m-prtnrsForm06__panel">                     <div class="m-prtnrsForm06__inputLabel m-prtnrsForm06__inputLabelPages">Pages</div>                 </div>                 <div class="m-prtnrsForm06__panel">                     <select id="page-601cba3646571" class="m-prtnrsForm06__select" name="pp[pages]" required title="Select the number of pages">                         <option value="">Select page</option>                     </select>                 </div>             </div>         </div>         <div class="m-prtnrsForm06__hr"></div>         <div class="m-prtnrsForm06__price">             <div class="m-prtnrsForm06__priceOur" data-label="Best Price!">                 <div class="m-prtnrsForm06__priceLabel"><span>Our Price</span></div>                 <div class="m-prtnrsForm06__priceValueFull hide" data-currency="$">0</div>                 <div class="m-prtnrsForm06__priceValue" data-currency="$">0</div>             </div>         </div>     </div>     <br/>     <div>         <button class="m-prtnrsForm06__submit" type="submit">             <span>PLACE AN ORDER</span>             <span class="m-prtnrsForm06__submitIcon"></span>         </button>     </div> </form>');

    function l() {
        var c = document.querySelector('#' + conf.containerId),
            f = c.querySelector('form'),
            fd = c.querySelector('.m-prtnrsForm06__select[name="pp[type]"]'),
            fl = c.querySelector('.m-prtnrsForm06__select[name="pp[level]"]'),
            fu = c.querySelector('.m-prtnrsForm06__select[name="pp[urgency]"]'),
            fp = c.querySelector('.m-prtnrsForm06__select[name="pp[pages]"]'),
            pr = c.querySelector('.m-prtnrsForm06__priceValue'),
            prf = c.querySelector('.m-prtnrsForm06__priceValueFull'),
            ds = c.querySelector('.m-prtnrsForm06__discount'),
            pageLabel = c.querySelector('.m-prtnrsForm06__inputLabelPages'),
            isb = c.querySelectorAll('input, select, button');

        Array.prototype.forEach.call(isb, function(el, i){
            el.setAttribute('disabled', true);
        });

        var request = new XMLHttpRequest();
        request.open('GET', 'https://www.dsa7.net/data?url=' + conf.url + '&component=' + conf.component, true);

        request.onload = function() {
          if (this.status >= 200 && this.status < 400) {
            /* Success! */
            var data = JSON.parse(this.response);
            onSuccess(data);
          } else {
            /* We reached our target server, but it returned an error */
            console.error('Server response status ' + this.status);
          }
        };

        request.onerror = function() {
          /* There was a connection error of some sort */
            console.error('Request error');
        };

        request.send();

        function onSuccess (data) {
            function createListDoctype() {
                while(fd.firstChild) {
                    fd.removeChild(fd.firstChild);
                }

                var g = [];
                for (let key in data.doctype) {
                    if (g.indexOf(data.doctype[key].group) == -1) {
                        g.push(data.doctype[key].group);
                    }
                }

                for (var i = 0; i < g.length; i++) {
                    var gr = document.createElement('optGroup');
                    gr.setAttribute('label', g[i]);
                    fd.appendChild(gr);

                    for (let key in data.doctype) {
                        if (data.doctype[key].group == g[i]) {
                            gr.appendChild(new Option(data.doctype[key].value, key));
                        }
                    }
                }
            }

            function createListLevel(d, active) {
                while(fl.firstChild) {
                    fl.removeChild(fl.firstChild);
                }

                var ss = 0;
                for (let key in data.doctype[d].level) {
                    if (data.doctype[d].level[key].value == active) {
                        ss = key;
                    }

                    if (data.doctype[d].level[key].is_default && ss == 0) {
                        ss = key;
                    }

                    fl.appendChild(new Option(data.doctype[d].level[key].value, key));
                }

                fl.querySelector('option[value="' + ss + '"]').setAttribute('selected', true);
            }

            function createListUrgency(d, l, active) {
                while(fu.firstChild) {
                    fu.removeChild(fu.firstChild);
                }

                var ss = 0;
                for (let key in data.doctype[d].level[l].urgency) {
                    if (data.doctype[d].level[l].urgency[key].value == active) {
                        ss = key;
                    }

                    if (data.doctype[d].level[l].urgency[key].is_default && ss == 0) {
                        ss = key;
                    }

                    fu.appendChild(new Option(data.doctype[d].level[l].urgency[key].value, key));
                }

                fu.querySelector('option[value="' + ss + '"]').setAttribute('selected', true);
            }

            function numberOfElements(d) {
                var limit = data.page.page_limits[d],
                    urgencyInDays = data.urgency_in_days,
                    cvU = fu.value,
                    ctT = fd.value,
                    count = data.page.count[d];

                if (limit == 0) {
                    return 200;
                }

                switch (urgencyInDays[cvU]) {
                    case 0.25:
                        $max = 6;
                        if (ctT == 'Multiple Choice Questions') {
                            $max = 15;
                        } else if (ctT == 'Math\/Physics\/Chemistry problems' || ctT == 'Accounting\/Statistic\/Economic problems') {
                            $max = 3;
                        } else if (ctT == 'Statistics project') {
                            $max = 3;
                        }

                        break;

                    case 0.33:
                        $max = 10;
                        if (ctT == 'Multiple Choice Questions') {
                            $max = 25;
                        } else if (ctT == 'Math\/Physics\/Chemistry problems' || ctT == 'Accounting\/Statistic\/Economic problems') {
                            $max = 3;
                        } else if (ctT == 'Statistics project') {
                            $max = 3;
                        }

                        break;

                    case 0.5:
                        $max = 10;
                        if (ctT == 'Multiple Choice Questions') {
                            $max = 37;
                        } else if (ctT == 'Math\/Physics\/Chemistry problems' || ctT == 'Accounting\/Statistic\/Economic problems') {
                            $max = 4;
                        }

                        break;

                    case 1:
                        $max = 1.5 * urgencyInDays[cvU] * limit;
                        if (ctT == 'Math\/Physics\/Chemistry problems' || ctT == 'Accounting\/Statistic\/Economic problems') {
                            $max = 6;
                        }

                        break;

                    default:
                        $max = 1.5 * urgencyInDays[cvU] * limit;
                }

                if ($max <= count) {
                    return $max;
                }

                return count;
            }

            function createPage(d, active) {
                var datapage = data.page,
                    count = numberOfElements(d),
                    a = 1;

                pageLabel.textContent = datapage.label[d];

                while(fp.firstChild) {
                    fp.removeChild(fp.firstChild);
                }

                for (var i = 1; i <= count; i++) {
                    var text = datapage.text[d],
                        page = '',
                        value = '';

                    if (text != '') {
                        text = (i == 1) ? text : text + 's';
                    }

                    page = (datapage.per_page[d] != 0) ? (' / ' + (datapage.per_page[d] * i) + ' words') : '';
                    value = i + ' ' + text + page;

                    if (i == active) {
                        a = i;
                    }

                    fp.appendChild(new Option(value, i));
                }

                fp.querySelector('option[value="' + a + '"]').setAttribute('selected', true);
                return a;
            }

            function createPrice(d, l, u, p = 1) {
                var price = 0;
                var priceDiscount = 0;

                for (let key in data.doctype[d].level[l].urgency[u].price) {
                    price = data.doctype[d].level[l].urgency[u].price[key].value;
                }

                p = (p <= 1) ? price : (price * p);


                if (data.discount.constructor === Object && Object.keys(data.discount).length >= 0) {
                    priceDiscount = p - ( p * (data.discount.value/100) );
                    prf.innerHTML = parseFloat(p).toFixed(2);
                    prf.classList.remove('hide');
                    pr.innerHTML = parseFloat(priceDiscount).toFixed(2);
                } else {
                    pr.innerHTML = parseFloat(p).toFixed(2);
                }
            }

            function setDiscount() {
                if (data.discount.constructor === Object && Object.keys(data.discount).length >= 0) {
                    ds.value = data.discount.name;
                }
            }

            function work() {
                var d = null,
                    l = null,
                    u = null,
                    p = 1;

                fp.addEventListener('change', function() {
                    p = createPage(d, fp.value);
                    createPrice(d, l, u, p);
                });


                fu.addEventListener('change', function() {
                    u = fu.value;
                    triggerEvent(fp, 'change');
                });


                fl.addEventListener('change', function() {
                   l = fl.value;
                    createListUrgency(d, l, fu.value);
                    triggerEvent(fu, 'change');
                });

                fd.addEventListener('change', function() {
                    d = fd.value;
                    createListLevel(d, fl.value);
                    triggerEvent(fl, 'change');
                    triggerEvent(fp, 'change');
                });

                triggerEvent(fd, 'change');
            }

            createListDoctype();
            setDiscount();
            work();

            if(conf.exposition == undefined || !conf.exposition)
            {
                let btns = c.querySelectorAll('button');

                Array.prototype.forEach.call(btns, function(el, i){
                    el.removeAttribute('disabled');
                });
            }

            let inputsSelects = c.querySelectorAll('input, select');

            Array.prototype.forEach.call(inputsSelects, function(el, i){
                el.removeAttribute('disabled');
            });
        }
    }


    if (d.readyState == 'complete'){
        l();
    } else {
        if (w.attachEvent){
            w.attachEvent('onload', l);
        } else {
            w.addEventListener('load', l, false);
        }
    }

    function triggerEvent(el, eventName) {
        var event = document.createEvent('HTMLEvents');
        event.initEvent(eventName, true, false);
        el.dispatchEvent(event);
    }
}(window, document);