"use client";
import { usePathname, useRouter } from "next/navigation";
import { useEffect, useState } from "react";
import { Progress } from "@/components/ui/progress";

const calculateTimeLeft = (expiresAt: string) => {
	const now = Date.now();
	const expirationTime = new Date(expiresAt).getTime();
	return Math.max(0, Math.floor((expirationTime - now) / 1000));
};

const HumanizeTimeLeft = (seconds: number) => {
	const minutes = Math.floor(seconds / 60);
	const remainingSeconds = seconds % 60;
	return `${minutes}m ${remainingSeconds}s`;
};

export default function ExpiryCountDown({
	expiresAt,
	expiryLabel,
}: {
	expiresAt: string;
	expiryLabel: string;
}) {
	const [timeLeft, setTimeLeft] = useState(calculateTimeLeft(expiresAt));
	const [mounted, setMounted] = useState(false);
	const router = useRouter();
	const pathname = usePathname();
	useEffect(() => {
		setMounted(true);
	}, []);

	useEffect(() => {
		const timer = setInterval(() => {
			setTimeLeft(calculateTimeLeft(expiresAt));
		}, 1000);

		return () => clearInterval(timer);
	}, [expiresAt]);

	useEffect(() => {
		if (timeLeft <= 0) {
			router.replace(pathname);
		}
	}, [timeLeft, router, pathname]);

	if (!mounted) {
		return null;
	}
	return (
		<div className="overflow-clip relative mx-2 p-4 rounded-md border border-dashed flex items-center justify-between text-muted-foreground">
			<div className="absolute inset-0 title-bg mask-b-from-0" />
			{timeLeft ? (
				<span>Time left: {HumanizeTimeLeft(timeLeft)}</span>
			) : (
				<span>{expiryLabel} has expired.</span>
			)}
			{timeLeft > 0 && (
				<Progress
					className="absolute bottom-0 left-0 right-0"
					color="#f49b5b"
					value={(timeLeft / 600) * 100}
				/>
			)}
		</div>
	);
}