se-simulator/web/static/js/app.js

document.addEventListener("DOMContentLoaded", function (event) {
    var vote = document.getElementsByClassName("vote");
    Array.prototype.forEach.call(vote, function (elvote) {
        var id = elvote.dataset.id;
        var type = elvote.dataset.type;
        Array.prototype.forEach.call(elvote.querySelectorAll("a"), function (el) {
            el.addEventListener("click", function (event) {
                var vote = el.classList[0];
                var request = new XMLHttpRequest();
                request.open("POST", "/api/vote/" + type + "/" + id + "/" + vote, true);

                request.onload = function () {
                    if (this.status >= 200 && this.status < 400) {
                        var resp = JSON.parse(this.response);
                        el.classList.add("active");
                        elvote.querySelector("div").textContent = resp.upvotes - resp.downvotes
                    } else {
                        // We reached our target server, but it returned an error

                    }
                };
                request.onerror = function () {
                    // There was a connection error of some sort
                };
                request.send();
            })
        });
    });
    var input = document.getElementById("siteselector");
    if (input) {
        var mode = input.dataset.mode;
        var request = new XMLHttpRequest();
        request.open("GET", "/api/sites", true);

        request.onload = function () {
            if (this.status >= 200 && this.status < 400) {
                var resp = JSON.parse(this.response);
                var list = [];
                for (var key in resp) {
                    if (resp.hasOwnProperty(key)) {
                        var site, shortname;
                        site = resp[key];
                        shortname = site.url.replace(".stackexchange.com", ".SE");
                        list.push({
                            label: site.name + " (" + shortname + ")",
                            value: site.url
                        });
                    }
                }
                new Awesomplete(input, {
                    list: list,
                    minChars: 0,
                    autoFirst: true
                });
                input.addEventListener("awesomplete-select", function (event) {
                    if (!(event.text.value in resp)) { // shouldn't happen
                        return false
                    }
                    var selectedSite = resp[event.text.value];

                    if (mode === "filter") {
                        window.location.href = "/s/" + selectedSite.url
                    } else if (mode === "quiz") {
                        console.log(selectedSite);
                    }

                });
            } else {
                // We reached our target server, but it returned an error

            }
        };
        request.onerror = function () {
            // There was a connection error of some sort
        };
        request.send();

    }

});