---
import type { HTMLAttributes } from 'astro/types';

interface Props extends HTMLAttributes<'div'> {
	dir?: string;
	wrapperClass?: string;
	childrenNum: number;
	childrenSize?: string;
	speed?: string;
}

const {
	dir = 'left',
	wrapperClass = '',
	childrenNum,
	childrenSize = '256px',
	speed = '25s',
} = Astro.props;

---

<div class={
	`w-full slider
	${dir === 'right' ? 'reverse' : ''}
	${wrapperClass}`
}>
	<div class="wrapper flex flex-row gap-2.5">
		<slot class="content" />
		<slot class="content" />
	</div>
</div>

<!--
	credit to modrinth's implementation! here is their CSS code:
	https://github.com/modrinth/knossos/blob/d6ba3f3adfd8f52b85f83e53660d3d87cd0bc9ea/pages/index.vue#L620-L675
	oh and since theirs is in AGPL, please note that this codeblock is also AGPL
-->
<style lang="scss" define:vars={{ childrenNum, childrenSize, speed }}>
	.slider {
		.wrapper {
			animation: var(--speed) linear infinite slide;
			@media (prefers-reduced-motion) {
				animation: none;
			}
			@keyframes slide {
				from {
					transform: translateX(0);
				}
				to {
					transform: translateX(calc((var(--childrenSize) + 10px) * -1 * var(--childrenNum)));
				}
			}
		}

		/**
		&:hover > .wrapper, &.reverse:hover > .wrapper {
			animation-play-state: paused;
		}
		*/

		&.reverse > .wrapper {
			animation: var(--speed) linear infinite slide-reverse;
			@keyframes slide-reverse {
				from {
					transform: translateX(calc((var(--childrenSize) + 10px) * -1 * var(--childrenNum)));
				}
				to {
					transform: translateX(0);
				}
			}
		}
	}
</style>