PuzzleRushGoal

Adds an editable goal label for the run, and also shows how many mistakes happened so far
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// ==UserScript==
// @name         PuzzleRushGoal
// @namespace    https://www.twitch.tv/SimpleVar
// @version      0.1
// @description  Adds an editable goal label for the run, and also shows how many mistakes happened so far
// @author       SimpleVar
// @match        https://www.chess.com/puzzles
// @match        https://www.chess.com/puzzles/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=chess.com
// @license      MIT
// @grant        none
// ==/UserScript==

(() => {
    setInterval(update, 100)

    function createX(isGray) {
        const x = document.createElement('span')
        x.classList.add('streak-icon-large')
        x.classList.add('streak-icon-square-x' + (isGray ? '-gray' : ''))
        x.classList.add('streak-icon-component')
        return x
    }
    function update() {
        if (!location.pathname?.endsWith('/rush')) return
        const solved = document.querySelector('.sidebar-play-solved')
        if (!solved) return
        if (!solved._sv_goal) {
            const p = document.createElement('div')
            p.style.display = 'flex'
            p.style.cursor = 'pointer'
            solved.parentElement.insertBefore(p, solved)
            solved.remove()
            p.appendChild(solved)
            const goal = solved._sv_goal = document.createElement('div')
            p.append(goal)
            goal.classList.add('sidebar-play-solved')
            goal.setAttribute('contenteditable', 'true')
            goal.textContent = localStorage.getItem('_sv_goal') ?? '∕100'
            p.addEventListener('click', e => {
                goal.focus()
            }, {passive: true})
            goal.addEventListener('blur', e => {
                localStorage.setItem('_sv_goal', e.target.textContent = e.target.textContent)
            }, {passive: true})
        }
        if (!solved._sv_mistakes) {
            const _m = solved._sv_mistakes = document.createElement('div')
            _m._sv_n = 0
            _m.style.display = 'flex'
            _m.style.gap = '8px'
            solved.parentElement.parentElement.insertBefore(_m, solved.parentElement.nextElementSibling)
            for (let i = 0; i < 3; i++) {
                solved._sv_mistakes.append(createX(true))
            }
        }
        if (!solved._sv_streak) solved._sv_streak = document.querySelector('.sidebar-play-streak')
        let len = 0
        for (const c of solved._sv_streak.children) {
            if (c.classList.contains('streak-indicator-incorrect')) len++
        }
        const m = solved._sv_mistakes
        if (m._sv_n === len) return
        m._sv_n = len
        for (let i = 0; i < len; i++) {
            m.children[i].classList.add('streak-icon-square-x')
            m.children[i].classList.remove('streak-icon-square-x-gray')
        }
        for (let i = len; i < 3; i++) {
            m.children[i].classList.add('streak-icon-square-x-gray')
            m.children[i].classList.remove('streak-icon-square-x')
        }
    }
})()