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/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\CssSelector\Node;

/**
 * Represents a &quot;&lt;selector&gt;[&lt;namespace&gt;|&lt;attribute&gt; &lt;operator&gt; &lt;value&gt;]&quot; node.
 *
 * This component is a port of the Python cssselect library,
 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
 *
 * @author Jean-François Simon &lt;jeanfrancois.simon@sensiolabs.com&gt;
 *
 * @internal
 */
class AttributeNode extends AbstractNode
{
    private $selector;
    private $namespace;
    private $attribute;
    private $operator;
    private $value;

    public function __construct(NodeInterface $selector, ?string $namespace, string $attribute, string $operator, ?string $value)
    {
        $this-&gt;selector = $selector;
        $this-&gt;namespace = $namespace;
        $this-&gt;attribute = $attribute;
        $this-&gt;operator = $operator;
        $this-&gt;value = $value;
    }

    public function getSelector(): NodeInterface
    {
        return $this-&gt;selector;
    }

    public function getNamespace(): ?string
    {
        return $this-&gt;namespace;
    }

    public function getAttribute(): string
    {
        return $this-&gt;attribute;
    }

    public function getOperator(): string
    {
        return $this-&gt;operator;
    }

    public function getValue(): ?string
    {
        return $this-&gt;value;
    }

    /**
     * {@inheritdoc}
     */
    public function getSpecificity(): Specificity
    {
        return $this-&gt;selector-&gt;getSpecificity()-&gt;plus(new Specificity(0, 1, 0));
    }

    public function __toString(): string
    {
        $attribute = $this-&gt;namespace ? $this-&gt;namespace.'|'.$this-&gt;attribute : $this-&gt;attribute;

        return 'exists' === $this-&gt;operator
            ? sprintf('%s[%s[%s]]', $this-&gt;getNodeName(), $this-&gt;selector, $attribute)
            : sprintf(&quot;%s[%s[%s %s '%s']]&quot;, $this-&gt;getNodeName(), $this-&gt;selector, $attribute, $this-&gt;operator, $this-&gt;value);
    }
}
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