User:XXN/massrestore.js

Code that you insert on this page could contain malicious content capable of compromising your account. If you import a script from another page with "importScript", "mw.loader.load", "iusc", or "lusc", take note that this causes you to dynamically load a remote script, which could be changed by others. Editors are responsible for all edits and actions they perform, including by scripts. User scripts are not centrally supported and may malfunction or become inoperable due to software changes. A guide to help you find broken scripts is available. If you are unsure whether code you are adding to this page is safe, you can ask at the appropriate village pump.
This code will be executed when previewing this page.

Documentation for this user script can be added at User:XXN/massrestore.

Note: After saving, you have to bypass your browser's cache to see the changes. Google Chrome, Firefox, Microsoft Edge and Safari: Hold down the ⇧ Shift key and click the Reload toolbar button. For details and instructions about other browsers, see Wikipedia:Bypass your cache.

/*global $, mw */
///An updated version of [[User:Timotheus Canens/massrestore.js]] (adapted from [[User:Animum/massdelete.js]])

if (mw.config.get("wgNamespaceNumber") == -1
        && mw.config.get("wgTitle").toLowerCase() == "massrestore"
        && /sysop/.test(mw.config.get("wgUserGroups"))) {
    /**
     * Mediawiki takes WAY too long for the document ready to load; this will
     * listen for the actual body being loaded before that.
     */
    new Promise(resolve => {
        $(resolve);
        var interval = window.setInterval(function () {
            if ($("#footer")[0] && $("#mw-navigation")[0]) {
                resolve();
                window.clearInterval(interval);
            }
        }, 100);
    }).then(function () {
        $("h1").html("Mass-restoration tool");
        document.title = "Tim's mass-restoration tool - Wikipedia, the free encyclopedia";
        $(mw.config.get("skin") == "cologneblue" ? "#article" : "#bodyContent").html(
                "<h3 id=\"siteSub\">From Wikipedia, the free encyclopedia</h3><br /><br />"
                + "<form id=\"wpMassRestore\" name=\"wpMassRestore\">"
                + "<b>If you abuse this tool, it's <i>your</i> fault, not mine.</b>"
                + "<div id=\"wpMassRestoreFailedContainer\"></div>"
                + "<br /><br />"
                + "Pages to restore(one on each line, please):<br />"
                + "<textarea tabindex=\"1\" accesskey=\",\" name=\"wpMassRestorePages\" "
                + "id=\"wpMassRestorePages\" rows=\"10\" cols=\"80\"></textarea>"
                + "<br /><br /><table style=\"background-color:transparent\">"
                + "<tr><td>Reason:</td>"
                + "<td><input type=\"text\" id=\"wpMassRestoreReason\" name=\"wpMassRestoreReason\""
                + " maxlength=\"255\" /></td></tr>"
                + "<tr><td><input type=\"button\" id=\"wpMassRestoreSubmit\" name=\"wpMassRestoreSubmit\""
                + " value=\"Restore\"/></td>" + "</form>");
        $("#wpMassRestoreSubmit").click(function () {
            $("#wpMassRestoreSubmit").attr("disabled", true);
            var wpMassRestoreReason = $("#wpMassRestoreReason").val();
            var restored = 0;
            var errors = {};
            $.ajax({
                url: mw.config.get("wgScriptPath") + "/api.php",
                data: {
                    format: "json",
                    action: "query",
                    prop: "info",
                    intoken: "edit",
                    titles: $("#wpMassRestorePages").val().split("\n").join("|")
                }
            }).then(function (data) {
                Promise.all($.map(data.query.pages, function (info) {
                    function fail(e) {
                        errors[info.title] = e;
                    }
                    return $.ajax({
                        method: "post",
                        url: mw.config.get("wgScriptPath") + "/api.php",
                        data: {
                            format:"json",
                            action: "undelete",
                            reason: wpMassRestoreReason,
                            token: info.edittoken,
                            title: info.title
                        }
                    }).then(function (subdata) {
                        // If restored, update the restored count and the button.
                        if (subdata.undelete) {
                            $("#wpMassRestoreSubmit").val(++restored);
                        } else {
                            fail(subdata.error.info);
                        }
                    }, fail);
                })).then($.noop, $.noop).then(function () {
                    $("#wpMassRestoreSubmit").val("Done (" + restored + ")");

                    if (!$.isEmptyObject(errors)) {
                        var ul = $("<ul></ul>");
                        $.each(errors, function (title, e) {
                            ul.append("<li><a href=\"" + mw.config.get("wgScript") + "?title=" +
                                    encodeURIComponent(title) + "\">" + title + "</a>: " + e + "</li>");
                        });
                        $("#wpMassRestoreFailedContainer").html(
                        		"<br /><strong>Failed restorations:</strong>").append(ul);
                    }
                });
            });
        });
    });
}