MusareNode/frontend/src/components/SongThumbnail.vue

<template>
	<div
		:class="{
			thumbnail: true,
			'youtube-thumbnail':
				song.youtubeId &&
				(!song.thumbnail ||
					(song.thumbnail &&
						(song.thumbnail.lastIndexOf('notes-transparent') !==
							-1 ||
							song.thumbnail.lastIndexOf('/assets/notes.png') !==
								-1 ||
							song.thumbnail.lastIndexOf('i.ytimg.com') !==
								-1)) ||
					song.thumbnail === 'empty' ||
					song.thumbnail == null)
		}"
	>
		<slot name="icon" />
		<div
			class="yt-thumbnail-bg"
			:style="{
				'background-image':
					'url(' +
					`https://img.youtube.com/vi/${song.youtubeId}/mqdefault.jpg` +
					')'
			}"
		></div>
		<img
			v-if="
				song.youtubeId &&
				(!song.thumbnail ||
					(song.thumbnail &&
						(song.thumbnail.lastIndexOf('notes-transparent') !==
							-1 ||
							song.thumbnail.lastIndexOf('/assets/notes.png') !==
								-1 ||
							song.thumbnail.lastIndexOf('i.ytimg.com') !==
								-1)) ||
					song.thumbnail === 'empty' ||
					song.thumbnail == null)
			"
			loading="lazy"
			:src="`https://img.youtube.com/vi/${song.youtubeId}/mqdefault.jpg`"
			onerror="this.src='/assets/notes-transparent.png'"
		/>
		<img
			v-else
			loading="lazy"
			:src="song.thumbnail"
			onerror="this.src='/assets/notes-transparent.png'"
		/>
	</div>
</template>

<script>
export default {
	props: {
		song: {
			type: Object,
			default: () => {}
		}
	}
};
</script>

<style lang="less">
.thumbnail {
	min-width: 130px;
	height: 130px;
	position: relative;
	margin-top: -15px;
	margin-bottom: -15px;
	margin-left: -10px;

	.yt-thumbnail-bg {
		display: none;
	}

	img {
		height: 100%;
		width: 100%;
		margin-top: auto;
		margin-bottom: auto;
		z-index: 1;
		position: absolute;
		top: 0;
		bottom: 0;
		left: 0;
		right: 0;
	}

	&.youtube-thumbnail {
		.yt-thumbnail-bg {
			height: 100%;
			width: 100%;
			display: block;
			position: absolute;
			top: 0;
			filter: blur(1px);
			background: url("/assets/notes-transparent.png") no-repeat center
				center;
		}

		img {
			height: auto;
		}
	}
}
</style>