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<?php

declare(strict_types=1);

/**
 * This file is part of phpDocumentor.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @link http://phpdoc.org
 */

namespace phpDocumentor\Reflection\Php\Expression;

use phpDocumentor\Reflection\Fqsen;
use phpDocumentor\Reflection\FqsenResolver;
use phpDocumentor\Reflection\Php\Expression;
use phpDocumentor\Reflection\Type;
use phpDocumentor\Reflection\TypeResolver;
use phpDocumentor\Reflection\Types\Context;
use phpDocumentor\Reflection\Types\Object_;
use PhpParser\Node\Expr;
use PhpParser\Node\Name;
use PhpParser\PrettyPrinter\Standard;

use function ltrim;

final class ExpressionPrinter extends Standard
{
    /** @var array<string, Fqsen|Type> */
    private array $parts = [];
    private Context|null $context = null;
    private TypeResolver $typeResolver;

/** {@inheritDoc} */
    public function __construct(array $options = [])
    {
        parent::__construct($options);

$this->typeResolver = new TypeResolver(
            new FqsenResolver(),
        );
    }

protected function resetState(): void
    {
        parent::resetState();

$this->parts = [];
    }

public function prettyPrintExpr(Expr $node, Context|null $context = null): string
    {
        $this->context = $context;

return parent::prettyPrintExpr($node);
    }

protected function pName(Name $node): string
    {
        $renderedName = $this->typeResolver->resolve(parent::pName($node), $this->context);
        $placeholder = Expression::generatePlaceholder((string) $renderedName);

if ($renderedName instanceof Object_ && $renderedName->getFqsen() !== null) {
            $this->parts[$placeholder] = $renderedName->getFqsen();
        } else {
            $this->parts[$placeholder] = $renderedName;
        }

return $placeholder;
    }

// phpcs:ignore PSR1.Methods.CamelCapsMethodName.NotCamelCaps
    protected function pName_FullyQualified(Name\FullyQualified $node): string
    {
        $renderedName = parent::pName_FullyQualified($node);
        $placeholder = Expression::generatePlaceholder($renderedName);
        $this->parts[$placeholder] = new Fqsen($renderedName);

return $placeholder;
    }

// phpcs:ignore PSR1.Methods.CamelCapsMethodName.NotCamelCaps
    protected function pExpr_ClassConstFetch(Expr\ClassConstFetch $node): string
    {
        $renderedName = parent::pObjectProperty($node->name);

if ($node->class instanceof Name) {
            $className = parent::pName($node->class);
            $className = $this->typeResolver->resolve($className, $this->context);
        } else {
            $className = $this->p($node->class);
        }

$placeholder = Expression::generatePlaceholder((string) $renderedName);
        $this->parts[$placeholder] = new Fqsen(
            '\\' . ltrim((string) $className, '\\') . '::' . $renderedName,
        );

return $placeholder;
    }

/** @return array<string, Fqsen|Type> */
    public function getParts(): array
    {
        return $this->parts;
    }
}