@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";

@mixin btn-border-radius {
    border-top-left-radius: var(--border-left-radius);
    border-bottom-left-radius: var(--border-left-radius);

    border-top-right-radius: var(--border-right-radius);
    border-bottom-right-radius: var(--border-right-radius);
}

$btn-base-color-day: white;

@mixin btn-day-base {
    color: var(--text-fg);
    background-color: $btn-base-color-day;
    border-color: var(--medium-border) !important;
}

@mixin btn-day(
    $with-hover: true,
    $with-active: true,
    $with-disabled: true,
    $with-margin: true
) {
    .btn-day {
        @include btn-day-base;
        @content ($btn-base-color-day);

        @if ($with-hover) {
            &:hover {
                background-color: darken($btn-base-color-day, 8%);
            }
        }

        @if ($with-active) {
            &:active,
            &.active {
                @include impressed-shadow(0.25);
            }

            &:active.active {
                box-shadow: none;
            }
        }

        @if ($with-disabled) {
            &[disabled] {
                background-color: $btn-base-color-day !important;
                box-shadow: none !important;
            }
        }

        @if ($with-margin) {
            margin-left: -1px;
        }
    }
}

$btn-base-color-night: #666;

@mixin btn-night-base {
    color: var(--text-fg);
    background-color: $btn-base-color-night;
    border-color: $btn-base-color-night;
}

@mixin btn-night(
    $with-hover: true,
    $with-active: true,
    $with-disabled: true,
    $with-margin: true
) {
    .btn-night {
        @include btn-night-base;
        @content ($btn-base-color-night);

        @if ($with-hover) {
            &:hover {
                background-color: lighten($btn-base-color-night, 8%);
                border-color: lighten($btn-base-color-night, 8%);
            }
        }

        @if ($with-disabled) {
            &:active,
            &.active {
                @include impressed-shadow(0.35);
                border-color: darken($btn-base-color-night, 8%);
            }

            &:active.active {
                box-shadow: none;
                border-color: $btn-base-color-night;
            }
        }

        @if ($with-disabled) {
            &[disabled] {
                background-color: $btn-base-color-night !important;
                box-shadow: none !important;
                border-color: $btn-base-color-night !important;
            }
        }

        @if ($with-margin) {
            margin-left: 1px;
        }
    }
}

// should be similar to -webkit-focus-ring-color
$focus-color: $blue;

@mixin impressed-shadow($intensity) {
    box-shadow: inset 0 calc(var(--buttons-size) / 15) calc(var(--buttons-size) / 5)
        rgba(black, $intensity);
}

@function down-arrow($color) {
    @return url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='transparent' stroke='#{$color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
}