this post was submitted on 30 Jun 2023
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Lemmy Plugins and Userscripts

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A general repository for user scripts and plugins used to enhance the Lemmy browsing experience.

Post (or cross-post) your favorite Lemmy enhancements here!

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Crossgeposted von: https://feddit.de/post/1185964

Please excuse my sub-par JavaScript, I am a backend dev.

All you need to do is paste this into Tampermonkey and enter your username and your instance url (on two locations).

This is not showing other users' scores and it doesn't make your score visible to anyone else than yourself.

So no need for karma farming. This is just for fun.

// ==UserScript==
// @name         Lemmy score
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Shows your total post/comment score at the top right.
// @author       You
// @match        ENTER INSTANCE URL HERE (leave the asterisk after the URL)*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=feddit.de
// @grant        none
// @run-at       document-idle
// ==/UserScript==

(function() {
    'use strict';

    var USERNAME = "ENTER USERNAME HERE";
    var INSTANCE_URL = "ENTER INSTANCE URL HERE";

    var totalScore = 0;
    var currentPage = 1;

    function postResult() {
        var navbar = document.getElementsByClassName("collapse navbar-collapse")[0];
        console.log(navbar);
        var ul = document.createElement("ul");
        ul.className = "navbar-nav";
        ul.id = "karma-ul";
        var li = document.createElement("li");
        li.id = "karma-li";
        li.className = "nav-item";
        li.innerHTML = '<div id="karma-div">' + totalScore + '</div>'
        navbar.appendChild(ul);
        ul.appendChild(li);
    }
    function callPage() {
        var userRequest = new XMLHttpRequest();
        userRequest.onreadystatechange = function () {
            if (this.readyState == 4) {
                if (this.status == 200 ) {
                    var res = JSON.parse(this.responseText);
                    if (res.posts.length==0 && res.comments.length==0) {
                        postResult();
                    } else {
                        totalScore += res.posts.map(x => x.counts.score).reduce((partialSum, a) => partialSum + a, 0);
                        totalScore += res.comments.map(x => x.counts.score).reduce((partialSum, a) => partialSum + a, 0);
                        currentPage++;
                        callPage();
                    }
                }
            }
        }
        userRequest.open("GET", INSTANCE_URL + "/api/v3/user?username=" + USERNAME + "&limit=50&page=" + currentPage, true);
        userRequest.send();
    }

    setTimeout(callPage, 200);
})();

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[–] [email protected] -4 points 1 year ago (1 children)

the this.readyState if statement and the this.status could be one statement. e.g. this.readyState === 4 && this.status === 200

also note the three equals instead of two. it's is more performant as it is type specific

[–] [email protected] 3 points 1 year ago (1 children)

Wasn't really looking for a code review. This was just a quick and dirty hack. I didn't even intend to post it here, but someone where I posted it first insisted.

There are a lot of potential optimisations, but the time budget that I wanted to sink into this script was a maximum of 15 minutes.

[–] god 5 points 1 year ago

thanks for sharing :)