/*!
 * V4Fire Client Core
 * https://github.com/V4Fire/Client
 *
 * Released under the MIT license
 * https://github.com/V4Fire/Client/blob/master/LICENSE
 */

@import "super/i-block/i-block.styl"

$p = {
	itemSize: 100%
	itemBg: #E8E8E8
	itemMargin: 0 0 0 0
	itemBorderRadius: 16px

	rectSize: 200px

	circleSize: 50px
	circleBorderRadius: 50%

	animation: true

	animationGradient: linear-gradient(to right, alpha(#FFF, 0) 46%, alpha(#FFF, 0.25) 50%, alpha(#FFF, 0) 54%)
	animationGradientPosition: 50% 50%

	animationDuration: 1.5s
	animationDistanceXXL: 2000px
	animationDistanceXL: 1200px
	animationDistanceL: 600px
	animationDistanceM: 300px
	animationDistanceS: 100px
}

b-skeleton extends i-block
	&__item
		position relative
		size $p.itemSize
		overflow hidden
		border-radius $p.itemBorderRadius
		background-color $p.itemBg

		if $p.animation
			&:before
				absolute left 50% top 0 bottom 0 right 0

				content ""

				width 500%
				margin-left -250%

				background-image $p.animationGradient
				background-position $p.animationGradientPosition

				animation-duration $p.animationDuration
				animation-iteration-count infinite
				animation-timing-function linear

	&__item_shape_rect
		size $p.rectSize

	&__column
		display flex
		flex-direction column

	&__row
		display flex
		width 100%
		overflow hidden

	&__column &__item
	&__row &__item
		flex-shrink 0

	&_shape_circle
		size $p.circleSize
		border-radius $p.circleBorderRadius

	if $p.animation
		for $s in ("S" "M" "L" "XL" "XXL")
			$keyframe = skeleton_ + $s
			$v = $p[animationDistance + $s]

			&__item_animation_{toLowerCase($s)}:before
				animation-name $keyframe

			@keyframes {$keyframe}
				0%
					transform translate(-($v), 0)

				100%
					transform translate($v, 0)