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Nitro Type - Race Ghost Cursor

Displays the leading opponent's position on the Typing Test.

// ==UserScript==
// @name         Nitro Type - Race Ghost Cursor
// @version      0.1.1
// @description  Displays the leading opponent's position on the Typing Test.
// @author       Toonidy
// @match        *://*.nitrotype.com/race
// @match        *://*.nitrotype.com/race/*
// @icon         data:image/png;base64,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
// @grant        none
// @license      MIT
// @namespace    https://greasyfork.org/users/858426
// ==/UserScript==

/////////////
//  Utils  //
/////////////

/** Finds the React Component from given dom. */
const findReact = (dom, traverseUp = 0) => {
	const key = Object.keys(dom).find((key) => key.startsWith("__reactFiber$"))
	const domFiber = dom[key]
	if (domFiber == null) return null
	const getCompFiber = (fiber) => {
		let parentFiber = fiber?.return
		while (typeof parentFiber?.type == "string") {
			parentFiber = parentFiber?.return
		}
		return parentFiber
	}
	let compFiber = getCompFiber(domFiber)
	for (let i = 0; i < traverseUp && compFiber; i++) {
		compFiber = getCompFiber(compFiber)
	}
	return compFiber?.stateNode
}

/** Console logging with some prefixing. */
const logging = (() => {
	const logPrefix = (prefix = "") => {
		const formatMessage = `%c[Nitro Type Race Ghost Cursor]${prefix ? `%c[${prefix}]` : ""}`
		let args = [console, `${formatMessage}%c`, "background-color: #D62F3A; color: #fff; font-weight: bold"]
		if (prefix) {
			args = args.concat("background-color: #4f505e; color: #fff; font-weight: bold")
		}
		return args.concat("color: unset")
	}
	return {
		info: (prefix) => Function.prototype.bind.apply(console.info, logPrefix(prefix)),
		warn: (prefix) => Function.prototype.bind.apply(console.warn, logPrefix(prefix)),
		error: (prefix) => Function.prototype.bind.apply(console.error, logPrefix(prefix)),
		log: (prefix) => Function.prototype.bind.apply(console.log, logPrefix(prefix)),
		debug: (prefix) => Function.prototype.bind.apply(console.debug, logPrefix(prefix)),
	}
})()

///////////////
//  Backend  //
///////////////

const raceContainer = document.getElementById("raceContainer"),
	reactObj = raceContainer ? findReact(raceContainer) : null
if (!raceContainer || !reactObj) {
	logging.error("Init")("Could not find the race track")
	return
}

/** Styles for the following components. */
const style = document.createElement("style")
style.appendChild(
	document.createTextNode(`
.dash-center .dash-letter.nt-ghost-cursor-active:not(.is-waiting, .is-incorrect) {
	background-color: #88888880;
}
.dash-center .dash-letter.nt-ghost-cursor-nitro:not(.is-waiting, .is-incorrect) {
	background-color: #5b7be580;
}
.dash-center .dash-letter.nt-ghost-cursor-disqualified:not(.is-waiting, .is-incorrect) {
	background-color: #88200080;
}
`)
)
document.head.appendChild(style)

const server = reactObj.server,
	currentUserID = reactObj.props.user.userID

/** Update Ghost Cursor Position on the track. */
const updateGhostCursor = (typed, status) => {
	document.querySelector(".dash-center .dash-letter.nt-ghost-cursor")?.classList.remove(
        "nt-ghost-cursor",
        "nt-ghost-cursor-active",
        "nt-ghost-cursor-nitro",
        "nt-ghost-cursor-disqualified"
    )

	const letter = document.querySelectorAll(".dash-center .dash-letter")[typed]
	if (!letter) {
		logging.error("Racing")("Could not find letter to update")
		return
	}
	letter.classList.add("nt-ghost-cursor", `nt-ghost-cursor-${status}`)
}

/** Setup Ghost Cursor. */
server.on("status", (e) => {
	if (e.status !== "countdown") {
		return
	}
	logging.debug("Starting")("Progress", { me: 0, opponent: 0, status: "active" })
	updateGhostCursor(0, "active")
})

/** Update Ghost Cursor. */
server.on("update", (e) => {
	let opponent = null,
		me = null
	reactObj.state.racers.forEach((r) => {
		if (r.userID === currentUserID) {
			me = r
		} else if (!opponent || opponent.progress.typed < r.progress.typed) {
			opponent = r
		}
	})
	if (!me) {
		logging.error("Racing")("Could not find current racer")
		return
	}
	if (!opponent) {
		logging.error("Racing")("Could not find current fastest opponent")
		return
	}

	let status = "active"
	if (opponent.disqualified) {
		status = "disqualified"
	} else if (opponent.progress.skipped > 0) {
		status = "nitro"
	}
	updateGhostCursor(opponent.progress.typed, status)
})