{{-- A badge: M3's count or dot on an icon, or a short status label.

     M3's two badges (BadgeTokens, androidx Compose Material 3, Apache-2.0):
     - `<x-badge />` — the small badge, a 6px dot: something new, no number.
     - `<x-badge value="3" />` — the large badge, 16px tall, label-small: a count. `max` caps what is
       shown ("99+").
     Both are `error` by default, as M3 draws them. `floating` pins one to the top-end corner of a
     `relative` parent — an icon or an icon button:

         <span class="relative inline-flex"><x-icon name="notifications" /><x-badge value="4" floating /></span>

     The status label is not an M3 badge but every app needs one: `tonal` draws the value in the
     colour's container ("Expired" in error-container), `solid` in the colour itself (a label that
     has to stand out, "Built in" in primary), `outline` in a neutral edge. `color` (alias
     `tone`): `error` (the default), `primary`, `secondary`, `tertiary`, `success`, `warning`, `info`,
     and two without a hue of their own:
     - `neutral` — neutral ink on every variant: on-surface-variant with surface text as a dot or
       count (the ink an outline badge already writes in), surface-container-high with
       on-surface-variant text when `tonal`, the outline-variant edge when `outline`.
     - `plain` — no background, text or border colour at all, only shape, size and type, so the
       caller's classes paint it: `<x-badge value="Run" tonal color="plain" class="bg-tertiary-container text-on-tertiary-container" />`.

     The value is `value`, or the slot, which renders as HTML — an icon beside the word:
     `<x-badge tonal><x-icon name="bolt" class="size-3" /> Pro</x-badge>`. With neither it is a dot.

     A count or dot says nothing to a screen reader on its own: give the icon's control a label
     that includes it ("Notifications, 4 new"), or pass `label` here. --}}

@props([
    'value' => null,
    'max' => null,
    'color' => null,
    'tone' => null,
    'tonal' => false,
    'solid' => false,
    'outline' => false,
    'floating' => false,
    'label' => null,
])

@php
    $color = in_array($color ?? $tone, ['primary', 'secondary', 'tertiary', 'error', 'success', 'warning', 'info', 'neutral', 'plain'], true) ? ($color ?? $tone) : 'error';
    // hasActualContent(): a slot holding only a comment, or an empty @foreach, is still a dot.
    $markup = $value === null && $slot->hasActualContent();
    $text = $value ?? ($markup ? trim((string) $slot) : null);
    $dot = blank($text);
    $status = ($tonal || $solid || $outline) && ! $dot;

    if (! $dot && $max !== null && is_numeric($text) && (int) $text > (int) $max) {
        $text = $max.'+';
        $markup = false;
    }

    $filled = [
        'primary' => 'bg-primary text-on-primary', 'secondary' => 'bg-secondary text-on-secondary', 'tertiary' => 'bg-tertiary text-on-tertiary',
        'error' => 'bg-error text-on-error', 'success' => 'bg-success text-on-success', 'warning' => 'bg-warning text-on-warning', 'info' => 'bg-info text-on-info',
        'neutral' => 'bg-on-surface-variant text-surface',
    ];
    $container = [
        'primary' => 'bg-primary-container text-on-primary-container', 'secondary' => 'bg-secondary-container text-on-secondary-container', 'tertiary' => 'bg-tertiary-container text-on-tertiary-container',
        'error' => 'bg-error-container text-on-error-container', 'success' => 'bg-success-container text-on-success-container', 'warning' => 'bg-warning-container text-on-warning-container', 'info' => 'bg-info-container text-on-info-container',
        'neutral' => 'bg-surface-container-high text-on-surface-variant',
    ];
    $paint = match (true) {
        $color === 'plain' => '',
        ! $status, $solid => $filled[$color],
        $tonal => $container[$color],
        default => 'border-outline-variant text-on-surface-variant',
    };

    $attributes = $attributes
        ->class([
            'inline-flex shrink-0 items-center justify-center whitespace-nowrap',
            'size-1.5 rounded-corner-full' => $dot,
            'h-4 min-w-4 rounded-corner-full px-1 type-label-sm tabular-nums' => ! $dot && ! $status,
            'h-6 gap-1 rounded-corner-sm px-2 type-label-md' => $status,
            'border' => $outline && ! $tonal && ! $solid && ! $dot,
            $paint => $paint !== '',
            'absolute top-0.5 end-0.5' => $floating && $dot,
            'absolute -top-1 start-[calc(100%-0.75rem)]' => $floating && ! $dot,
        ])
        ->merge(array_filter([
            'aria-label' => $label,
            'aria-hidden' => $label === null && ! $status ? 'true' : null,
        ]));
@endphp

<span {{ $attributes }}>@unless ($dot)@if ($markup){{ $slot }}@else{{ $text }}@endif@endunless</span>