AO3: [Wrangling] Count Wranglers on Subfandoms

On a fandom tag's Landing Page, writes out how many wranglers are currently assigned to the listed subfandoms
当前为 2022-06-29 提交的版本，查看最新版本。
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// ==UserScript==
// @name         AO3: [Wrangling] Count Wranglers on Subfandoms
// @namespace    https://gf.qytechs.cn/en/users/906106-escctrl
// @description  On a fandom tag's Landing Page, writes out how many wranglers are currently assigned to the listed subfandoms
// @author       escctrl
// @version      0.1
// @match        *://*.archiveofourown.org/tags/*
// @require      https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js
// @license      MIT
// ==/UserScript==

(function($) {
    'use strict';

    // wait duration between checking individual bins - set this number higher if you often run into Retry Later
    //   this applies especially to huge fandom trees like DCU!! 3sec is NOT enough for the full list! make this number huge and let it run in the background
    //   defined in milliseconds, e.g. 3000 = 3 seconds
    const interval = 5000;

    const subfandoms = document.getElementsByClassName('sub')[0];
    if ($('div.parent.fandom').length == 0) { console.log('Count Wranglers on Subfandoms script says: this is not a fandom tag'); return true; } // bow out gracefully if we're not looking at a fandom
    if (subfandoms == null) { console.log('Count Wranglers on Subfandoms script says: fandom doesn\'t have subfandoms'); return true; } // bow out gracefully if the fandom has no subfandoms

    // some code to add *) hidden span to track ao3jail *) span for progress bar/report global results, *) button to start the checking
    $(subfandoms).children('h3.heading').before('<span id="countwranglers-jail" style="display: none;"></span>' +
                                                '<span id="countwranglers-unwrangled" style="display: none;">0</span>' +
                                                '<span id="countwranglers-results" style="float:right;"><button id="countwranglers">Count Wranglers</button></span>');

    // assign the function to the click event (will trigger only once user clicked the link)
    $(subfandoms).find('button#countwranglers').click(countWranglers);


    // a function that gets run on button push
    function countWranglers() {

        // checking that the click event actually worked
        var progress = document.getElementById('countwranglers-results');
        $(progress).css("padding", "0.3em 0.25em");
        $(progress).html('Counting wranglers... grab a drink, this may take a while!');

        // find all the subfandoms
        var fandoms = $(subfandoms).find('ul.tree a');

        // immediately add a span placeholder next to each fandom for the # of wranglers, show TBD until the fandom was checked
        // this is basically our progress bar while the script slowly works down the fandom tree
        $(fandoms).after('<span style="font-size: smaller;"> <em>... wranglers TBD</em></span>');

        // loop through the unwrangled bins
        $(fandoms).each(function(i, fandom) {

            // set a delay between bin checks to reduce chances of jail
            setTimeout(function() {

                // if previous loops hit Ao3 Jail, don't try looking for wranglers anymore
                if ( document.getElementById('countwranglers-jail').innerText == "true") {
                    console.log('previously received "Retry later" response, skipped check on subfandom');
                    return false;
                }

                var assignedCount = 0;
                var unwrangledTotal = document.getElementById('countwranglers-unwrangled');

                // retrieve the data from the fandom tag's edit page
                $.get(fandom.href + '/edit', function(response) {
                    // nothing to do here, all interactions are in done() and failed()

                // do stuff on success (write out how many wranglers are on a fandom tag, add an Edit link when 0, and count global unwrangled's up)
                }).done(function(response) {
                    // pick the correct field in the form containing the assigned wranglers
                    var assignedWranglers = $(response).find('#edit_tag fieldset:first dd:nth-of-type(4)').text();
                    var unwrangledCount = parseInt(unwrangledTotal.innerText);

                    // unwrangled fandoms have a Sign Up link here
                    if (assignedWranglers == 'Sign Up') {
                        // count up the global total of unwrangled subfandoms
                        unwrangledCount++;
                        unwrangledTotal.innerText = unwrangledCount.toString();

                        // update the fandom tag with that information and put in an Edit & Wrangle child tags button for convenience
                        $(fandom).next().html(' ... unwrangled [<a href="'+ fandom.href + '/edit">Edit</a>] [<a href="'+ fandom.href + '/wrangle">Wrangle</a>]');

                        // highlight the fandom tag to make it easily findable in a long list
                        $(fandom).parent().css("background-color", "yellow");
                    }
                    // assigned wranglers are plaintext
                    else {
                        // split the a comma-seperated list into an array and count its length (that's the number of wranglers)
                        assignedCount = assignedWranglers.split(', ').length;

                        // update the fandom tag with that information
                        $(fandom).next().html(' ... '+ assignedCount +' wrangler' + ((assignedCount > 1) ? "s" : ""));
                    }

                    // if last loop also succeeded, update global progress with "all wrangled" or "# unwrangled"
                    if (fandoms.length == i+1) {
                        if (unwrangledCount == 0) {
                            $(progress).html('all subfandoms are wrangled \\o/');
                        }
                        else {
                            $(progress).html(unwrangledCount + ' subfandoms unwrangled');
                        }
                    }

                // thanks to Przemysław Sienkiewicz on Stackoverflow for the code to catch error responses https://stackoverflow.com/a/40256829
                // do other stuff on fail (set the ao3jail marker)
                }).fail(function(data, textStatus, xhr) {
                    // update user on the issue
                    $(progress).html('Wrangler Count has hit "Retry later", sorry!');
                    document.getElementById('countwranglers-jail').innerText = "true"; // set it in DOM so next delayed loops can skip

                    //This shows status code eg. 429
                    console.log("Wrangler Count has hit Retry later", data.status);
                    //This shows status message eg. Too Many Requests
                    //console.log("bin #"+i+" STATUS: "+xhr);

                    return false;
                });

            // the each() loops immediately and creates all timeout calls (async) at once, so we need to stagger them
            // by multiplying the 3s delay by the loop number (bin #0 = 3000*0, bin #1 = 3000*1, bin #2 = 3000*2, etc)
            }, interval*i);
        }); // end each
    } // end function
})(jQuery);
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