<?PHP
/**
 * Test to ensure that all concordance lists in this repository implement the MDImporterConcordanceListInterface interface.
 *
 * @author Joshua Ramon Enslin <joshua@museum-digital.de>
 */
declare(strict_types = 1);

use PHPUnit\Framework\TestCase;

// Require autoloader as per MDImporter's provideEnv.php
require_once __DIR__ . '/../../../provideEnv.php';

/**
 * Test to ensure that all concordance lists in this repository implement the MDImporterConcordanceListInterface interface.
 */
final class InterfaceImplementationTest extends TestCase {

    /** @var string[] */
    private array $_lists = [];

    /**
     * Quasi-constructor connects to DB.
     *
     * @return void
     */
    protected function setUp():void {

        if (($listFiles = scandir(__DIR__ . '/../src')) === false) {
            throw new Exception("Failed to read /src directory");
        }

        foreach ($listFiles as $file) {
            if (pathinfo($file, PATHINFO_EXTENSION) === 'php') {
                $this->_lists[] = pathinfo($file, PATHINFO_FILENAME);
            }
        }

    }

    /**
     * Test all concordance lists for their implementation of MDImporterConcordanceListInterface.
     *
     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
     * @group  ValidOutput
     * @group  HTMLOutput
     * @group  SafeForProduction
     *
     * @return void
     */
    public function testListInterfaceIsImplemented():void {

        foreach ($this->_lists as $list) {
            if (!file_exists(__DIR__ . '/../src/' . $list . '.php')) {
                throw new Exception("List file does not exist" . $list);
            }
            require_once __DIR__ . '/../src/' . $list . '.php';

            $interfaces = class_implements(new $list);
            self::assertArrayHasKey('MDImporterConcordanceListInterface', $interfaces);
        }

    }
}