/*
 * <x-toggle>: M3's switch (resources/views/components/toggle.blade.php), on the row the selection
 * controls share (components/selection.css). The hooks say `switch` because `toggle` is daisyUI's
 * class, which the design guard rejects.
 *
 * SwitchTokens (androidx Compose Material 3, Apache-2.0): a 52×32 track with a 2px outline, in
 * surface-container-highest when off and primary when on. The handle's centre is 16px from the
 * track's start off and 36px on; it is 16px across off, 24px with an icon or on, and 28px while
 * pressed, moving and growing on the fast spatial spring. Off it is outline, on-surface-variant
 * while hovered, focused or pressed; on it is on-primary, primary-container in those states. The
 * state layer is a 40px circle around the handle. Its icons are 16px, on-primary-container when on.
 * Disabled, the track is on-surface at 12% and the handle on-surface at 38% (surface when on).
 *
 *   [data-md-switch]            the track; `data-md-icons` = "both" or "selected"
 *     input, [data-md-switch-handle] (with [data-md-switch-on] and [data-md-switch-off] icons)
 */

@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;

@import './selection.css';
@import './icon.css';

@layer material.components {
    /* The positions below are the handle's centres less half its size, measured inside the track's
       2px outline. */
    [data-md-switch] {
        position: relative;
        display: grid;
        flex: none;
        width: 52px;
        height: 32px;
    }

    [data-md-switch] input {
        width: 100%;
        height: 100%;
        border: 2px solid var(--md-sys-color-outline);
        border-radius: var(--md-sys-shape-corner-full);
        background-color: var(--md-sys-color-surface-container-highest);
    }

    [data-md-switch] input:focus-visible {
        outline: 3px solid var(--md-sys-color-secondary);
        outline-offset: 2px;
    }

    [data-md-switch-handle] {
        --handle: 16px;

        position: absolute;
        top: 50%;
        inset-inline-start: calc(16px - var(--handle) / 2);
        display: grid;
        place-items: center;
        width: var(--handle);
        height: var(--handle);
        translate: 0 -50%;
        border-radius: var(--md-sys-shape-corner-full);
        background-color: var(--md-sys-color-outline);
        color: var(--md-sys-color-surface-container-highest);
        pointer-events: none;
        transition-property: inset-inline-start, width, height, background-color;
        transition-duration: var(--md-sys-motion-spatial-fast-duration);
        transition-timing-function: var(--md-sys-motion-spatial-fast);
    }

    [data-md-switch-handle]::before {
        inset: 50% auto auto 50%;
        width: 40px;
        height: 40px;
        translate: -50% -50%;
    }

    [data-md-switch-handle] > svg {
        grid-area: 1 / 1;
        opacity: 0;
        transition: opacity var(--md-sys-motion-effects-fast-duration) var(--md-sys-motion-effects-fast);
    }

    [data-md-switch][data-md-icons='both'] [data-md-switch-handle] {
        --handle: 24px;
    }

    [data-md-switch][data-md-icons='both'] input:not(:checked) ~ [data-md-switch-handle] [data-md-switch-off],
    [data-md-switch][data-md-icons] input:checked ~ [data-md-switch-handle] [data-md-switch-on] {
        opacity: 1;
    }

    [data-md-switch] input:checked {
        border-color: var(--md-sys-color-primary);
        background-color: var(--md-sys-color-primary);
    }

    [data-md-switch] input:checked ~ [data-md-switch-handle] {
        --handle: 24px;

        inset-inline-start: calc(36px - var(--handle) / 2);
        background-color: var(--md-sys-color-on-primary);
        color: var(--md-sys-color-on-primary-container);
    }

    [data-md-selection-row]:active [data-md-switch] input:not(:disabled) ~ [data-md-switch-handle] {
        --handle: 28px;
    }

    @media (hover: hover) {
        [data-md-selection-row]:hover [data-md-switch] input:not(:disabled) ~ [data-md-switch-handle] {
            background-color: var(--md-sys-color-on-surface-variant);
        }

        [data-md-selection-row]:hover [data-md-switch] input:checked:not(:disabled) ~ [data-md-switch-handle] {
            background-color: var(--md-sys-color-primary-container);
        }
    }

    [data-md-switch] input:focus-visible ~ [data-md-switch-handle],
    [data-md-selection-row]:active [data-md-switch] input:not(:disabled) ~ [data-md-switch-handle] {
        background-color: var(--md-sys-color-on-surface-variant);
    }

    [data-md-switch] input:checked:focus-visible ~ [data-md-switch-handle],
    [data-md-selection-row]:active [data-md-switch] input:checked:not(:disabled) ~ [data-md-switch-handle] {
        background-color: var(--md-sys-color-primary-container);
    }

    [data-md-switch] input:disabled {
        border-color: color-mix(in srgb, var(--md-sys-color-on-surface) calc(var(--md-sys-state-disabled-container-opacity) * 100%), transparent);
        background-color: color-mix(in srgb, var(--md-sys-color-surface-container-highest) calc(var(--md-sys-state-disabled-container-opacity) * 100%), transparent);
    }

    [data-md-switch] input:disabled ~ [data-md-switch-handle] {
        background-color: color-mix(in srgb, var(--md-sys-color-on-surface) calc(var(--md-sys-state-disabled-content-opacity) * 100%), transparent);
        color: color-mix(in srgb, var(--md-sys-color-surface-container-highest) calc(var(--md-sys-state-disabled-content-opacity) * 100%), transparent);
    }

    [data-md-switch] input:disabled:checked {
        border-color: transparent;
        background-color: color-mix(in srgb, var(--md-sys-color-on-surface) calc(var(--md-sys-state-disabled-container-opacity) * 100%), transparent);
    }

    [data-md-switch] input:disabled:checked ~ [data-md-switch-handle] {
        background-color: var(--md-sys-color-surface);
        color: color-mix(in srgb, var(--md-sys-color-on-surface) calc(var(--md-sys-state-disabled-content-opacity) * 100%), transparent);
    }
}