<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Runner;

use PHPUnit\Framework\ClassNotFoundException;
use PHPUnit\Framework\TestCase;
use PHPUnit\Util\FileLoader;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 *
 * @deprecated see https://github.com/sebastianbergmann/phpunit/issues/4039
 */
final class StandardTestSuiteLoader implements TestSuiteLoader
{
    /**
     * @throws \PHPUnit\Framework\ClassNotFoundException
     */
    public function load(string $suiteClassFile): \ReflectionClass
    {
        $suiteClassName = \str_replace('.php', '', \basename($suiteClassFile));

        if (!\class_exists($suiteClassName, false)) {
            $loadedClasses = \get_declared_classes();

            FileLoader::checkAndLoad($suiteClassFile);

            $loadedClasses = \array_values(
                \array_diff(\get_declared_classes(), $loadedClasses)
            );
        }

        if (empty($loadedClasses)) {
            throw ClassNotFoundException::byFilename($suiteClassName, $suiteClassFile);
        }

        if (!\class_exists($suiteClassName, false)) {
            $offset = 0 - \strlen($suiteClassName);

            foreach ($loadedClasses as $loadedClass) {
                if (\substr($loadedClass, $offset) === $suiteClassName) {
                    $suiteClassName = $loadedClass;

                    break;
                }
            }
        }

        if (!\class_exists($suiteClassName, false)) {
            throw ClassNotFoundException::byFilename($suiteClassName, $suiteClassFile);
        }

        try {
            $class = new \ReflectionClass($suiteClassName);
            // @codeCoverageIgnoreStart
        } catch (\ReflectionException $e) {
            throw new \Exception(
                $e->getMessage(),
                (int) $e->getCode(),
                $e
            );
        }
        // @codeCoverageIgnoreEnd

        if ($class->isSubclassOf(TestCase::class) && !$class->isAbstract()) {
            return $class;
        }

        if ($class->hasMethod('suite')) {
            try {
                $method = $class->getMethod('suite');
                // @codeCoverageIgnoreStart
            } catch (\ReflectionException $e) {
                throw new \Exception(
                    $e->getMessage(),
                    (int) $e->getCode(),
                    $e
                );
            }
            // @codeCoverageIgnoreEnd

            if (!$method->isAbstract() && $method->isPublic() && $method->isStatic()) {
                return $class;
            }
        }

        throw ClassNotFoundException::byFilename($suiteClassName, $suiteClassFile);
    }

    public function reload(\ReflectionClass $aClass): \ReflectionClass
    {
        return $aClass;
    }
}
