Musify/web-player/src/lib/components/Sidebar.svelte

<script lang="ts">
	import { page } from '$app/state';
	import { isSectionActive } from '$lib/navigation.svelte';
	import { liked } from '$lib/player/liked.svelte';
	import { createPlaylistModal } from '$lib/playlists.svelte';
	import type { SessionUser } from '$lib/types';
	import PlaylistArt from './ui/PlaylistArt.svelte';
	import Home from '@lucide/svelte/icons/house';
	import Compass from '@lucide/svelte/icons/compass';
	import ListMusic from '@lucide/svelte/icons/list-music';
	import Heart from '@lucide/svelte/icons/heart';
	import Disc from '@lucide/svelte/icons/disc-2';
	import Folder from '@lucide/svelte/icons/folder';
	import Upload from '@lucide/svelte/icons/upload';
	import Plus from '@lucide/svelte/icons/plus';

	interface SidebarPlaylist {
		id: string;
		name: string;
		coverTrackIds: (string | number)[];
		updatedAt: string;
	}

	interface Props {
		user: SessionUser | null;
		playlists: SidebarPlaylist[];
	}

	let { user, playlists }: Props = $props();

	const navLinks = $derived(
		user
			? [
					{ href: '/', label: 'Inicio', icon: Home },
					{ href: '/explore', label: 'Descubrir', icon: Compass },
					{ href: '/playlists', label: 'Playlists', icon: ListMusic },
					{ href: '/liked', label: 'Me gusta', icon: Heart, count: liked.count },
					{ href: '/albums', label: 'Mis álbumes', icon: Disc },
					{ href: '/library', label: 'Canciones subidas', icon: Folder },
					{ href: '/upload', label: 'Subir música', icon: Upload }
				]
			: [{ href: '/explore', label: 'Descubrir', icon: Compass }]
	);

	function isActive(href: string) {
		return isSectionActive(href, page.url.pathname, page.data.section);
	}
</script>

<aside
	class="hidden shrink-0 flex-col border-r border-hairline bg-[image:var(--mf-sidebar-bg)] pt-5.5 pr-3 pl-5 transition-[background] duration-[600ms] ease-out lg:flex"
	style="width:var(--mf-sidebar-w)"
>
	<a href="/" class="flex items-center gap-2.5 px-1.5 pb-6.5">
		<span class="font-display text-[17.5px] font-semibold tracking-[-0.02em] text-fg">Musify</span>
	</a>

	<nav class="flex flex-col gap-0.5">
		{#each navLinks as link (link.href)}
			{@const active = isActive(link.href)}
			<a
				href={link.href}
				aria-current={active ? 'page' : undefined}
				class="flex items-center gap-3 rounded-[10px] px-3 py-2.25 text-[13.5px] font-medium transition-colors duration-150 {active
					? 'bg-surface-hover text-fg'
					: 'text-fg-2 hover:bg-hover hover:text-fg'}"
			>
				<link.icon class="h-[17px] w-[17px] shrink-0" strokeWidth={1.6} />
				<span class="flex-1 truncate">{link.label}</span>
				{#if link.count}
					<span class="text-[11px] text-muted tabular-nums">{link.count}</span>
				{/if}
			</a>
		{/each}
	</nav>

	{#if user}
		<div class="mx-3 mt-6 mb-3.5 h-px bg-white/5"></div>
		<div class="flex items-center justify-between px-3 pb-1.5">
			<span class="text-[10.5px] font-semibold tracking-[0.13em] text-muted uppercase"
				>Tus playlists</span
			>
			{#if playlists.length > 0}
				<button
					type="button"
					onclick={() => createPlaylistModal.show()}
					aria-label="Crear playlist"
					class="text-base text-muted transition-colors hover:text-fg"
				>
					+
				</button>
			{/if}
		</div>

		<div class="flex flex-1 flex-col gap-px overflow-y-auto pb-4.5">
			{#each playlists as playlist (playlist.id)}
				{@const active = page.url.pathname === `/playlists/${playlist.id}`}
				<a
					href="/playlists/{playlist.id}"
					class="flex items-center gap-2.75 rounded-[10px] px-3 py-1.75 transition-colors duration-150 {active
						? 'bg-surface-hover'
						: 'hover:bg-hover'}"
				>
					<PlaylistArt
						playlistId={playlist.id}
						trackIds={playlist.coverTrackIds}
						version={playlist.updatedAt}
						size="small"
						class="h-8.5 w-8.5 shrink-0 overflow-hidden rounded-lg opacity-90"
					/>
					<div class="min-w-0 flex-1">
						<div class="truncate text-[13.5px] font-medium {active ? 'text-fg' : 'text-fg-2'}">
							{playlist.name}
						</div>
					</div>
				</a>
			{:else}
				<button
					type="button"
					onclick={() => createPlaylistModal.show()}
					class="flex items-center gap-2 rounded-[10px] px-3 py-2 text-[12px] text-muted transition-colors hover:bg-hover hover:text-fg-2"
				>
					<Plus class="h-3.5 w-3.5" strokeWidth={1.8} />
					Crear tu primera lista
				</button>
			{/each}
		</div>
	{/if}
</aside>