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

/**
 * CSS hack for IE10-11
 *
 * @example
 * ```stylus
 * .foo
 *   ie10-11()
 *     color red
 * ```
 */
ie10-11()
	@media all and (-ms-high-contrast none), (-ms-high-contrast active)
		{block}

/**
 * Activates GPU to render
 *
 * @example
 * ```stylus
 * .foo
 *   useGPU()
 * ```
 */
useGPU()
	transform translate3d(0, 0, 0)

/**
 * Global overlays map
 */
$OVERLAYS = ( "layer" "modal" "overall" )

/**
 * Sets `z-index` for the specified layer position
 *
 * @param {string} $pos - layer variants: underall, layer, modal, overall
 * @param {number} [$mod] - value modifier
 *
 * @example
 * ```stylus
 * .foo
 *   position absolute
 *   zIndex(modal)
 * ```
 */
zIndex($pos, $mod = 0)
	if $pos == "underall"
		z-index -1

	else
		z-index index($OVERLAYS, $pos) * 1000 + $mod

/**
 * Alias for `zIndex` mixin
 *
 * @example
 * ```stylus
 * .foo
 *   position absolute
 *   z-index-pos modal
 * ```
 */
z-index-pos($pos, $mod = 0)
	zIndex($pos, $mod)

/**
 * Generates rules for `flexbox` (direction: row)
 *
 * @param {string} $justify - justify-content (`def` for default)
 * @param {string=} [$align] - align-items (`def` for default)
 *
 * @example
 * ```stylus
 * .foo
 *   flex-row center
 * ```
 */
flex-row($justify, $align = $justify)
	display flex

	if $justify != "def"
		justify-content $justify

	if $align != "def"
		align-items $align

/**
 * Generates rules for `flexbox` (direction: row-reverse)
 *
 * @param {string} $justify - justify-content (`def` for default)
 * @param {string=} [$align] - align-items (`def` for default)
 *
 * @example
 * ```stylus
 * .foo
 *   flex-row-rev center
 * ```
 */
flex-row-rev($justify, $align = $justify)
	flex-row($justify, $align)
	flex-direction row-reverse

/**
 * Generates rules for `flexbox` (direction: column)
 *
 * @param {string} $justify - justify-content (`def` for default)
 * @param {string=} [$align] - align-items (`def` for default)
 *
 * @example
 * ```stylus
 * .foo
 *   flex-col center
 * ```
 */
flex-col($justify, $align = $justify)
	flex-row($justify, $align)
	flex-direction column

/**
 * Generates rules for `flexbox` (direction: column-reverse)
 *
 * @param {string} $justify - justify-content (`def` for default)
 * @param {string=} [$align] - align-items (`def` for default)
 *
 * @example
 * ```stylus
 * .foo
 *   flex-col-rev center
 * ```
 */
flex-col-rev($justify, $align = $justify)
	flex-row($justify, $align)
	flex-direction column-reverse

/**
 * Generates rules for a stretch modal layer
 *
 * @param {string} $position - position type
 * @param {string=} [$zIndexPos] - `zIndex` position
 */
stretch-layer($position, $zIndexPos = "modal")
	position $position
	top 0
	right 0
	bottom 0
	left 0
	zIndex($zIndexPos)

/**
 * Generates rules from object properties
 *
 * @param {Object} $opts
 * @param {boolean=} $normalize
 */
interpolate-props($opts, $normalize = true)
	if type($opts) == "object"
		for $key, $val in $opts
			$value = type($val) == "string" ? convert($val) : $val
			{$normalize ? dasherize($key, true): $key} $value

/**
 * Generates a path from the specified sequence
 *
 * @param {!Array<string>} $arr
 *
 * @example
 * ```styl
 * // "foo.bar.bla"
 * path(foo bar bla)
 * ```
 */
path($arr)
	join(".", $arr)