User:Anne drew/gigawatch.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.

This user script seems to have a documentation page at User:Anne drew/gigawatch.

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.

/* Watch/unwatch all pages (up to 500) in a category */

// @param maxPages Number of pages to watch/unwatch
// @param act Action: watch or unwatch
function watchPages(maxPages, act) {
    // Make the ajax request to fetch category members
    $.ajax({
        url: mw.util.wikiScript('api'),
        data: {
            action: 'query',
            list: 'categorymembers',
            format: 'json',
            cmtitle: mw.config.get('wgPageName'),
            formatversion: 2,
            cmprop: 'title',
            cmtype: 'page',
            cmlimit: maxPages
        },
        success: function (data) {
            const categoryMembers = data.query.categorymembers;
            // Check if we got anything
            if (!categoryMembers) {
                console.log('none found');
            } else {
                let result = [];
                for (let i = 0; i < categoryMembers.length; i++) {
                    result.push(categoryMembers[i].title);
                }
                const api = new mw.Api();
                const apiCalls = [];

                // Post the watch request
                while (result.length) {
                    const sliced = result.slice(0, 50);
                    apiCalls.push(api.postWithToken('watch', {
                        action: 'watch',
                        titles: sliced.join('|'),
                        formatversion: 2,
                        format: 'json',
                        ...(act === 'unwatch' && { unwatch: 'true' })
                    }));
                    result = result.slice(50);
                }
                Promise.all(apiCalls).then(() => {
                    alert("Done!");
                    if (act === 'watch') {
                        $('#gigawatch').addClass('watched');
                    }
                    else {
                        $('#gigawatch').removeClass('watched');
                    }
                });
            }
        }
    });
}

$(document).ready(function () {
    if (mw.config.get('wgCanonicalNamespace') == 'Category') {
        $('#p-cactions').find('ul').append(
            "<li><a title=\"Watch all pages in this category\" href=\"#\" id=\"gigawatch\">Watch all</a></li>\n"
        );
        $('#gigawatch').click(function () {
            const maxPages = 500;
            if ($('#gigawatch').hasClass('watched')) {
                if (confirm('Are you sure you want to unwatch all pages in this category? (Restricted to top 500 pages only)')) {
                    watchPages(maxPages, 'unwatch');
                }
            } else {
                if (confirm('Are you sure you want to watch all pages in this category? (Restricted to top 500 pages only)')) {
                    watchPages(maxPages, 'watch');
                }
            }
        });
    }
});