{{-- An M3 Expressive FAB menu: a FAB that opens into a short list of related actions.

         <div class="fixed end-4 bottom-4 large:end-6 large:bottom-6">
             <x-fab-menu label="New">
                 <x-fab-menu-item label="Upload files" icon="upload_file" wire:click="uploadFiles" />
                 <x-fab-menu-item label="Upload a folder" icon="drive_folder_upload" wire:click="uploadFolder" />
             </x-fab-menu>
         </div>

     Two to six items. The FAB (`icon`, `add` by default, in `color`'s container) turns into a
     round close button in the colour itself while the list is open above it, end-aligned; the
     list is a `popover="auto"` menu with the menu keyboard of `<x-menu>`. `label` names the FAB
     and the menu for screen readers, and defaults to "Toggle menu" — the icons inside the button
     are aria-hidden, so without it the trigger has no name at all. Give the items the same
     `color`. Like `<x-menu>`'s, the list is keyed for Livewire, so it stays open through a render
     of the component around it.

     It does not place itself. M3's margin from the edge of the window is 16dp, and 24dp from the
     `large` class up: `fixed end-4 bottom-4 large:end-6 large:bottom-6`. A window too short for
     the list scrolls it; the items rise into place as it opens and sink back as it closes.

     FabMenuBaselineTokens (androidx Compose Material 3, Apache-2.0): 56px items, 4px apart, 8px
     above the close button. The FAB's corner and colours morph on the two default springs at once
     (`state-transition-default`, resources/css/components/actions.css). --}}

@props([
    'icon' => 'add',
    'label' => null,
    'color' => 'primary',
    'position' => 'top-end',
])

@php
    // The trigger's only content is two icons, which are aria-hidden, so without a name it is an
    // unnamed button. M3 asks the FAB's label to say what menu it opens; "Toggle menu" is its own
    // fallback wording for the close button.
    $label = filled($label) ? $label : __('Toggle menu');
    $color = in_array($color, ['primary', 'secondary', 'tertiary'], true) ? $color : 'primary';
    $key = \Illuminate\Support\Str::lower(\Illuminate\Support\Str::random(10));
    $anchor = "--material-fab-menu-{$key}";

    $colours = [
        'primary' => 'bg-primary-container text-on-primary-container aria-expanded:bg-primary aria-expanded:text-on-primary',
        'secondary' => 'bg-secondary-container text-on-secondary-container aria-expanded:bg-secondary aria-expanded:text-on-secondary',
        'tertiary' => 'bg-tertiary-container text-on-tertiary-container aria-expanded:bg-tertiary aria-expanded:text-on-tertiary',
    ][$color];
@endphp

<div x-data="materialMenu" {{ $attributes->class('relative inline-flex') }}>
    <span x-ref="trigger" class="inline-flex" style="anchor-name: {{ $anchor }}"
        x-on:click="toggle('first')"
        x-on:keydown.down.prevent="open('first')"
        x-on:keydown.up.prevent="open('last')"
    >
        <button
            type="button"
            aria-label="{{ $label }}"
            @class([
                'group/fab state-layer focus-ring inline-flex size-14 shrink-0 cursor-pointer items-center justify-center rounded-corner-lg shadow-elevation-3 hover:shadow-elevation-4',
                'state-transition-default aria-expanded:rounded-corner-full',
                $colours,
            ])
        >
            <x-livewire-material::icon :name="$icon" filled class="size-6 group-aria-expanded/fab:hidden" />
            <x-livewire-material::icon name="close" filled optical="20" class="hidden size-5 group-aria-expanded/fab:block" />
        </button>
    </span>

    <div
        x-ref="menu"
        {{ new \Illuminate\View\ComponentAttributeBag(['wire:key' => 'material-fab-menu']) }}
        id="material-fab-menu-{{ $key }}"
        popover="auto"
        role="menu"
        data-fab-menu
        aria-label="{{ $label }}"
        tabindex="-1"
        style="position-anchor: {{ $anchor }}"
        x-on:keydown="navigate($event)"
        x-on:click="activate($event)"
        @class([
            'm-0 flex-col gap-1 border-0 bg-transparent p-2 open:flex [inset:auto]',
            // A landscape phone has no room for six 56px items: the list scrolls, the FAB below it
            // does not. The 8px padding is the gap M3 leaves above the FAB and the room the items'
            // elevation needs inside the scroll box; the negative margins put it back where it was.
            'max-h-[calc(100dvh-8rem)] overflow-y-auto',
            'transition-[display,overlay] transition-discrete duration-(--md-sys-motion-spatial-fast-duration)',
            '-mx-2 -mt-2 items-end [position-area:top_span-left]' => $position === 'top-end',
            '-mx-2 -mt-2 items-start [position-area:top_span-right]' => $position === 'top-start',
            '-mx-2 -mb-2 items-end [position-area:bottom_span-left]' => $position === 'bottom-end',
            '-mx-2 -mb-2 items-start [position-area:bottom_span-right]' => $position === 'bottom-start',
        ])
    >
        {{ $slot }}
    </div>
</div>