{{-- Switches the colour theme through `$store.theme` (resources/js/theme.js), so every toggle on a
     page reads and writes the one choice and none needs an id.

     `mode`:
     - `toggle` (the default): an icon button between light and dark. The icon is where it takes
       you — a sun while the page is dark, a moon while it is light — and it is a toggle button,
       "Dark theme", pressed while dark.
     - `cycle`: an icon button that steps light → dark → system, showing the choice it is on.
     - `picker`: M3's segmented buttons for the three choices, for a settings page.
     - `contrast`: the same row for M3's three contrast levels — standard, medium (3:1) and high
       (7:1), the three the scheme is generated in. The row marks the level in force
       (`resolvedContrast`), so the operating system's setting shows while the choice is
       `system`, and choosing one is an explicit choice from then on.

     The theme is the visitor's, known only in the browser, so the parts that depend on it wait for
     Alpine (`x-cloak`) rather than render a guess. `class` lands on the button or the group. --}}

@props([
    'mode' => 'toggle',
])

@php
    $mode = in_array($mode, ['toggle', 'cycle', 'picker', 'contrast'], true) ? $mode : 'toggle';
@endphp

@if ($mode === 'contrast')
    <div
        role="radiogroup"
        aria-label="{{ __('Contrast') }}"
        x-data
        data-theme-toggle="contrast"
        {{ $attributes->class(['inline-flex h-10 rounded-corner-full border border-outline']) }}
    >
        @foreach (['standard' => ['Standard', 'contrast'], 'medium' => ['Medium', 'contrast_circle'], 'high' => ['High', 'contrast_square']] as $level => [$text, $icon])
            <button
                type="button"
                role="radio"
                aria-checked="false"
                x-bind:aria-checked="($store.theme.resolvedContrast === '{{ $level }}').toString()"
                x-bind:tabindex="$store.theme.resolvedContrast === '{{ $level }}' ? 0 : -1"
                x-on:click="$store.theme.setContrast('{{ $level }}')"
                x-on:keydown.arrow-right.prevent="$el.nextElementSibling?.click(); $el.nextElementSibling?.focus();"
                x-on:keydown.arrow-left.prevent="$el.previousElementSibling?.click(); $el.previousElementSibling?.focus();"
                data-contrast-option="{{ $level }}"
                class="state-layer focus-ring inline-flex min-w-0 flex-1 cursor-pointer items-center justify-center gap-2 border-outline px-3 type-label-lg text-on-surface not-first:border-s first:rounded-s-corner-full last:rounded-e-corner-full aria-checked:bg-secondary-container aria-checked:text-on-secondary-container"
            >
                <x-livewire-material::icon name="check" class="hidden size-4.5 in-aria-checked:block" />
                <x-livewire-material::icon :name="$icon" class="size-4.5 in-aria-checked:hidden" />
                {{ __($text) }}
            </button>
        @endforeach
    </div>
@elseif ($mode === 'picker')
    <div
        role="radiogroup"
        aria-label="{{ __('Theme') }}"
        x-data
        data-theme-toggle="picker"
        {{ $attributes->class(['inline-flex h-10 rounded-corner-full border border-outline']) }}
    >
        @foreach (['light' => ['Light', 'light_mode'], 'dark' => ['Dark', 'dark_mode'], 'system' => ['System', 'brightness_auto']] as $choice => [$text, $icon])
            <button
                type="button"
                role="radio"
                aria-checked="false"
                x-bind:aria-checked="($store.theme.choice === '{{ $choice }}').toString()"
                x-bind:tabindex="$store.theme.choice === '{{ $choice }}' ? 0 : -1"
                x-on:click="$store.theme.set('{{ $choice }}')"
                x-on:keydown.arrow-right.prevent="$el.nextElementSibling?.click(); $el.nextElementSibling?.focus();"
                x-on:keydown.arrow-left.prevent="$el.previousElementSibling?.click(); $el.previousElementSibling?.focus();"
                data-theme-option="{{ $choice }}"
                class="state-layer focus-ring inline-flex min-w-0 flex-1 cursor-pointer items-center justify-center gap-2 border-outline px-3 type-label-lg text-on-surface not-first:border-s first:rounded-s-corner-full last:rounded-e-corner-full aria-checked:bg-secondary-container aria-checked:text-on-secondary-container"
            >
                <x-livewire-material::icon name="check" class="hidden size-4.5 in-aria-checked:block" />
                <x-livewire-material::icon :name="$icon" class="size-4.5 in-aria-checked:hidden" />
                {{ __($text) }}
            </button>
        @endforeach
    </div>
@else
    <button
        type="button"
        x-data
        data-icon-button
        data-theme-toggle="{{ $mode }}"
        @if ($mode === 'cycle')
            aria-label="{{ __('Theme') }}"
            x-bind:aria-label="{ light: @js(__('Theme: light')), dark: @js(__('Theme: dark')), system: @js(__('Theme: system')) }[$store.theme.choice]"
            x-on:click="$store.theme.set({ light: 'dark', dark: 'system', system: 'light' }[$store.theme.choice])"
        @else
            aria-label="{{ __('Dark theme') }}"
            aria-pressed="false"
            x-bind:aria-pressed="($store.theme.resolved === 'dark').toString()"
            x-on:click="$store.theme.toggle()"
        @endif
        {{ $attributes->class(['state-layer focus-ring inline-flex size-10 shrink-0 cursor-pointer items-center justify-center rounded-corner-full text-on-surface-variant transition-[border-radius] duration-(--md-sys-motion-spatial-fast-duration) ease-spatial-fast active:rounded-corner-sm']) }}
    >
        @if ($mode === 'cycle')
            <x-livewire-material::icon name="light_mode" x-cloak x-show="$store.theme.choice === 'light'" />
            <x-livewire-material::icon name="dark_mode" x-cloak x-show="$store.theme.choice === 'dark'" />
            <x-livewire-material::icon name="brightness_auto" x-cloak x-show="$store.theme.choice === 'system'" />
        @else
            <x-livewire-material::icon name="light_mode" x-cloak x-show="$store.theme.resolved === 'dark'" />
            <x-livewire-material::icon name="dark_mode" x-cloak x-show="$store.theme.resolved !== 'dark'" />
        @endif
    </button>
@endif