Rooster Teeth Cast Names Userscript

rtcastnames.user.js

// ==UserScript==
// @name         Rooster Teeth Cast Names
// @version      1.0
// @description  Adds cast names to Rooster Teeth video descriptions
// @author       Mego
// @match        https://roosterteeth.com/watch/*
// @icon         https://roosterteeth.com/img/rt-favicon.png
// @grant        none
// @homepage     https://gist.github.com/Mego/50c9a6caa53658c6a305facdb67b409f
// @downloadURL  https://gist.githubusercontent.com/Mego/50c9a6caa53658c6a305facdb67b409f/raw/d68000d5ba7cd9951e386de0b45835118a6809e6/rtcastnames.user.js
// ==/UserScript==

(function() {
    'use strict';

    const apiServer = window.rtConfig.REACT_APP_API_SERVER;
    const path = /https:\/\/roosterteeth\.com(\/watch\/.+)$/.exec(window.location)[1];
    const url = `${apiServer}/api/v1/${path}`;
    let attempts = 0;

    function formatNamesList(names) {
        if(!names) {
            return "";
        }
        if(names.length === 1) {
            return names[0];
        }
        if(names.length === 2) {
            return `${names[0]} and ${names[1]}`;
        }
        return `${names.slice(0,-1).join(", ")}, and ${names.slice(-1)[0]}`;
    }

    function appendCastNames(names) {
        if(names) {
            const descriptionEl = document.getElementsByClassName("video-details__description")[0];
            if(!descriptionEl) {
                attempts += 1;
                if(attempts < 5) {
                    setTimeout(() => appendCastNames(names), 1000);
                }
            }
            descriptionEl.insertAdjacentText('afterend', names);
        }
    }

    fetch(url, {
        "headers": {
            "accept": "application/json",
            "client-type": "web",
            "content-type": "application/json",
        },
        "referrerPolicy": "no-referrer",
        "method": "GET",
        "mode": "cors",
        "credentials": "omit"
    }).then(resp => resp.json()).then(episodeData => {
        try {
            const castMemberNames = episodeData.data[0].included.cast_members.map(castMember => castMember.attributes.name);
            if(/https:\/\/roosterteeth\.com\/watch\/rooster-teeth-podcast.+$/.test(window.location) && castMemberNames.includes('Gus Sorola')) {
                castMemberNames.sort((a,b) => {
                   if(a === "Gus Sorola") {
                       return -1;
                   }
                   if(b === "Gus Sorola") {
                       return 1;
                   }
                   return 0;
                });
                castMemberNames.push("Gus Sorola");
            }
            setTimeout(() => appendCastNames(formatNamesList(castMemberNames)), 1000);
        } catch(error) {
            console.debug(error);
        }
    });
})();