/**
* Helpers function
*
* @author splitfire - http://splitfire.fr
* @version 1.0
*
*/ 


/**
 * Check is value is not empty or is type of : optionnal
 * @param mixed value 
 * @param string type optionnal
 * @return boolean true
 */
@function isNotEmpty($str, $type:false) 
{
	$checkType : true;
	@if($type != false and type-of($type) == string) {
		$checkType : (type-of($str) == $type);
	}
	@return($str != "" and $str != 0 and $str != false and $checkType);
}

/**
 * Check if device exists and return device
 * @param string device
 * @return string|boolean
 */

@function device($device)
{
	$device: unquote($device);
	@if(isNotEmpty($device))
	{
		@each $breakpoints in $breakpoints-config 
		{
			$breakpoint-name : nth($breakpoints,1);
			@if($device == $breakpoint-name)
			{
				@return $breakpoints;
			}
		}
	}
	@warn '#{$device} does not exist ';
	@return false;	
}