<?php

namespace Sabberworm\CSS\CSSList;


< use Sabberworm\CSS\RuleSet\DeclarationBlock;
< use Sabberworm\CSS\RuleSet\RuleSet;


use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\Rule\Rule;

< use Sabberworm\CSS\Value\ValueList;



> use Sabberworm\CSS\RuleSet\DeclarationBlock;
> use Sabberworm\CSS\RuleSet\RuleSet;


use Sabberworm\CSS\Value\CSSFunction;

> use Sabberworm\CSS\Value\Value;

> use Sabberworm\CSS\Value\ValueList;


/**

<  * A CSSBlockList is a CSSList whose DeclarationBlocks are guaranteed to contain valid declaration blocks or at-rules.
<  * Most CSSLists conform to this category but some at-rules (such as @keyframes) do not.



>  * A `CSSBlockList` is a `CSSList` whose `DeclarationBlock`s are guaranteed to contain valid declaration blocks or
>  * at-rules.
>  *
>  * Most `CSSList`s conform to this category but some at-rules (such as `@keyframes`) do not.
>  */
> abstract class CSSBlockList extends CSSList
> {
>     /**
>      * @param int $iLineNo


 */

< abstract class CSSBlockList extends CSSList {
< 	public function __construct($iLineNo = 0) {



>     public function __construct($iLineNo = 0)
>     {


		parent::__construct($iLineNo);
	}


< 	protected function allDeclarationBlocks(&$aResult) {



>     /**
>      * @param array<int, DeclarationBlock> $aResult
>      *
>      * @return void
>      */
>     protected function allDeclarationBlocks(array &$aResult)
>     {


		foreach ($this->aContents as $mContent) {
			if ($mContent instanceof DeclarationBlock) {
				$aResult[] = $mContent;
			} else if ($mContent instanceof CSSBlockList) {
				$mContent->allDeclarationBlocks($aResult);
			}
		}
	}


< 	protected function allRuleSets(&$aResult) {



>     /**
>      * @param array<int, RuleSet> $aResult
>      *
>      * @return void
>      */
>     protected function allRuleSets(array &$aResult)
>     {


		foreach ($this->aContents as $mContent) {
			if ($mContent instanceof RuleSet) {
				$aResult[] = $mContent;
			} else if ($mContent instanceof CSSBlockList) {
				$mContent->allRuleSets($aResult);
			}
		}
	}


< 	protected function allValues($oElement, &$aResult, $sSearchString = null, $bSearchInFunctionArguments = false) {



>     /**
>      * @param CSSList|Rule|RuleSet|Value $oElement
>      * @param array<int, Value> $aResult
>      * @param string|null $sSearchString
>      * @param bool $bSearchInFunctionArguments
>      *
>      * @return void
>      */
>     protected function allValues($oElement, array &$aResult, $sSearchString = null, $bSearchInFunctionArguments = false)
>     {


		if ($oElement instanceof CSSBlockList) {
			foreach ($oElement->getContents() as $oContent) {
				$this->allValues($oContent, $aResult, $sSearchString, $bSearchInFunctionArguments);
			}
		} else if ($oElement instanceof RuleSet) {
			foreach ($oElement->getRules($sSearchString) as $oRule) {
				$this->allValues($oRule, $aResult, $sSearchString, $bSearchInFunctionArguments);
			}
		} else if ($oElement instanceof Rule) {
			$this->allValues($oElement->getValue(), $aResult, $sSearchString, $bSearchInFunctionArguments);
		} else if ($oElement instanceof ValueList) {
			if ($bSearchInFunctionArguments || !($oElement instanceof CSSFunction)) {
				foreach ($oElement->getListComponents() as $mComponent) {
					$this->allValues($mComponent, $aResult, $sSearchString, $bSearchInFunctionArguments);
				}
			}
		} else {

< 			//Non-List Value or CSSString (CSS identifier)



>             // Non-List `Value` or `CSSString` (CSS identifier)


			$aResult[] = $oElement;
		}
	}


< 	protected function allSelectors(&$aResult, $sSpecificitySearch = null) {
< 		$aDeclarationBlocks = array();



>     /**
>      * @param array<int, Selector> $aResult
>      * @param string|null $sSpecificitySearch
>      *
>      * @return void
>      */
>     protected function allSelectors(array &$aResult, $sSpecificitySearch = null)
>     {
>         /** @var array<int, DeclarationBlock> $aDeclarationBlocks */
>         $aDeclarationBlocks = [];


		$this->allDeclarationBlocks($aDeclarationBlocks);
		foreach ($aDeclarationBlocks as $oBlock) {
			foreach ($oBlock->getSelectors() as $oSelector) {
				if ($sSpecificitySearch === null) {
					$aResult[] = $oSelector;
				} else {
					$sComparator = '===';
					$aSpecificitySearch = explode(' ', $sSpecificitySearch);
					$iTargetSpecificity = $aSpecificitySearch[0];
					if(count($aSpecificitySearch) > 1) {
						$sComparator = $aSpecificitySearch[0];
						$iTargetSpecificity = $aSpecificitySearch[1];
					}
					$iTargetSpecificity = (int)$iTargetSpecificity;
					$iSelectorSpecificity = $oSelector->getSpecificity();
					$bMatches = false;
					switch($sComparator) {
						case '<=':
							$bMatches = $iSelectorSpecificity <= $iTargetSpecificity;
						break;
						case '<':
							$bMatches = $iSelectorSpecificity < $iTargetSpecificity;
						break;
						case '>=':
							$bMatches = $iSelectorSpecificity >= $iTargetSpecificity;
						break;
						case '>':
							$bMatches = $iSelectorSpecificity > $iTargetSpecificity;
						break;
						default:
							$bMatches = $iSelectorSpecificity === $iTargetSpecificity;
						break;
					}
					if ($bMatches) {
						$aResult[] = $oSelector;
					}
				}
			}
		}
	}

< 


}