/*------------------------------------*\
    #TOGGLE-BUTTON
\*------------------------------------*/

$toggle-button-color:       $white !default;
$toggle-button-bg-color:    $blue !default;
$toggle-button-note-color:  $dark-gray !default;

$toggle-button-label-border-color:  $border-color !default;

$toggle-button-status-positive-color:  $green !default;
$toggle-button-status-negative-color:  $red !default;


.toggle-button {
    display: block;
}

.toggle-button--inline {
    display: inline-block;
}

.toggle-button--disabled {
    opacity: 0.5;
}

    /**
     * 1. provides positiioning context for `.toggle-button__label`
     * 2. height + vertical margin = `.text-box` height
     */

    .toggle-button__switch {
        display: inline-block;
        position: relative; /* [1] */
        margin: 4px 0; /* [2] */
        width:  56px;
        height: 24px;
        vertical-align: middle;
    }

        /**
         * 1. if `.toggle-button__input` is not checked, hide `.toggle-button__label`
         * 2. if `.toggle-button__input` is checked, show `.toggle-button__label`
         * 3. if focused, apply focus ring to the label since the input is visually hidden
         */

        .toggle-button__input {
            @extend %visually-hidden;

            &:not(:checked) + .toggle-button__label { /* [1] */
                visibility: hidden;
            }

            &:checked + .toggle-button__label { /* [2] */
                visibility: visible;
            }

            &:focus + .toggle-button__label { /* [3] */
                @include focus-ring;
            }
        }

        .toggle-button__input--positive {}
        .toggle-button__input--negative {}

        /**
         * 1. dimension matches `.toggle-button__switch`
         * 2. disallow text highlighting
         * 3. styling for the toggle
         * 4. moving toggle left to right based on `.toggle-button__input:checked` state
         */

        .toggle-button__label {
            position: absolute;
            top:     0;
            right:   0;
            bottom:  0;
            left:    0;
            margin:  0;
            padding: 0 0 0 8px;
            color: $toggle-button-color;
            font-size:   12px;
            font-weight: bold;
            line-height: 24px; /* [1] */
            text-align: left;
            text-transform: uppercase;
            border: 1px solid $toggle-button-label-border-color;
            border-radius: 12px;
            cursor: pointer;
            user-select: none; /* [2] */
            -webkit-touch-callout: none; /* [2] */

            &:after { /* [3] */
                position: absolute;
                width:  22px;
                height: 22px;
                background: $toggle-button-color;
                border-radius: 100%;
                content: '';
                transition: left $global-transition-speed,
                            transform $global-transition-speed;
            }
        }

        .toggle-button__label--positive {
            background: $toggle-button-status-positive-color;

            &:after { /* [3] */
                left: 0;
                transform: translateX(0%);

                .toggle-button__input:checked + & { /* [4] */
                    left: 100%;
                    transform: translateX(-100%);
                }
            }
        }

        .toggle-button__label--negative {
            padding-left: 28px;
            background: $toggle-button-status-negative-color;

            &:after { /* [3] */
                left: 100%;
                transform: translateX(-100%);

                .toggle-button__input:checked + & { /* [4] */
                    left: 0;
                    transform: translateX(0);
                }
            }
        }

    /**
     * 1. hidden by default on page load
     * 2. placeholder for various other modifiers
     */

    .toggle-button__more {
        display: none; /* [1] */
        margin: 3px 0 0;
    }

    .toggle-button__more--active {} /* [2] */

    .toggle-button__more--to-right {
        margin: 0 0 0 8px;
        vertical-align: middle;

        &.toggle-button__more--active { display: inline-block; }
    }

    .toggle-button__more--below {
        &.toggle-button__more--active { display: block; }
    }

        /**
         * 1. styling to match `.value__note {}`
         */

        .toggle-button__note { /* [1] */
            color: $toggle-button-note-color;
            font-size: 12px;
        }