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path: root/src/lib/Media/Cover/hoverCover.ts
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import type { Media } from '$lib/AniList/media';
import { get } from 'svelte/store';
import type { SubsPleaseEpisode } from '../Anime/Airing/Subtitled/subsPlease';
import settings from '$stores/settings';

interface OnMouseEnterLeave {
	hovering: boolean;
	item: SubsPleaseEpisode | null;
	media: Media | null;
}

export const onMouseEnter = (
	media: Media | Partial<Media> | null,
	item: SubsPleaseEpisode | null = null
) => {
	if (!get(settings).displayHoverCover && !item)
		return { hovering: false, item: null, media: null } as OnMouseEnterLeave;

	return { hovering: true, item, media } as OnMouseEnterLeave;
};

export const onMouseLeave = () => {
	return { hovering: false, item: null, media: null } as OnMouseEnterLeave;
};

interface OnMouseMove {
	height: number;
	style: string;
}

export const onMouseMove = (event: MouseEvent, imageWidth = 300) => {
	const offset = 10;
	let imageLeft = 0;
	let imageTop = 0;
	const response: OnMouseMove = {
		height: (document.getElementsByClassName('hover-image')[0] as HTMLImageElement).height,
		style: ''
	};

	imageLeft =
		event.pageX + response.height + offset > window.innerWidth
			? event.pageX - imageWidth - offset
			: event.pageX + offset;
	imageTop =
		event.pageY + response.height + offset > window.innerHeight
			? event.pageY - response.height
			: event.pageY + offset;
	response.style = `top: ${imageTop}px; left: ${imageLeft}px;`;

	return response;
};