{{-- One destination in an `<x-navigation-rail>`, drawn in whichever shape the rail has.

         <x-navigation-rail-item label="Inbox" icon="inbox" link="{{ route('inbox') }}" :active="request()->routeIs('inbox')" badge="12" />

     Expanded, it is a 56px full-width pill: the icon, the label-large label beside it and a count
     at its end. Collapsed, the icon sits in a 56×32 indicator over a label-medium label (two lines
     at most), with the count on the icon. The current destination (`active`) is
     `aria-current="page"` with the filled icon on secondary-container, its label in secondary when
     collapsed.

     `link` renders an anchor with `wire:navigate` (unless `external` or `no-wire-navigate`);
     without one it is a button. `badge`: `true` for M3's small dot on the icon, a number or a few
     characters for the large badge (999+ at most). Screen readers hear a count after the label
     (", 12"); `badge-label` replaces it with words ("12 unread") and gives a dot something to say.

     Values from NavigationRailVerticalItemTokens.kt, NavigationRailHorizontalItemTokens.kt,
     NavigationRailBaselineItemTokens.kt and NavigationRailColorTokens.kt (androidx Compose
     Material 3, Apache-2.0); see `<x-navigation-rail>`. Compose's expanded item hugs its label; the
     package draws the full-width pill, which leaves room for the count at the end. --}}

@props([
    'label' => null,
    'icon' => null,
    'link' => null,
    'external' => false,
    'noWireNavigate' => false,
    'active' => false,
    'badge' => null,
    'badgeLabel' => null,
])

@php
    $isLink = filled($link);
    $tag = $isLink ? 'a' : 'button';
    $dot = $badge === true;
    $count = ! $dot && $badge !== null && $badge !== false && $badge !== '';
    $spoken = $badgeLabel ?? ($count ? $badge : null);

    $attributes = $attributes->merge(array_filter([
        'href' => $isLink ? $link : null,
        'target' => $isLink && $external ? '_blank' : null,
        'rel' => $isLink && $external ? 'noopener' : null,
        'wire:navigate' => $isLink && ! $external && ! $noWireNavigate && ! $attributes->has('wire:navigate') ? true : null,
        'type' => $isLink ? null : 'button',
        'aria-current' => $active ? 'page' : null,
        'data-md-active' => $active ? true : null,
    ], fn ($value): bool => $value !== null));
@endphp

<{{ $tag }} data-md-navigation-rail-item {{ $attributes }}>
    <span data-md-navigation-indicator>
        <span data-md-navigation-icon>
            @if ($icon)
                <x-livewire-material::icon :name="$icon" :filled="$active" />
            @endif

            @if ($dot)
                <x-livewire-material::badge floating />
            @elseif ($count)
                <span data-md-navigation-badge-icon><x-livewire-material::badge :value="$badge" max="999" floating /></span>
            @endif
        </span>
    </span>

    <span data-md-navigation-label>{{ $label ?? $slot }}</span>

    @if ($count)
        <span data-md-navigation-badge-end><x-livewire-material::badge :value="$badge" max="999" /></span>
    @endif

    @if ($spoken !== null)
        <span class="md-visually-hidden">, {{ $spoken }}</span>
    @endif
</{{ $tag }}>