class ComposerPatchesValidatorTest

class ComposerPatchesValidatorTest extends PackageManagerKernelTestBase {
    const ABSENT = 0;
    const CONFIG_ALLOWED_PLUGIN = 1;
    const EXTRA_EXIT_ON_PATCH_FAILURE = 2;
    const REQUIRE_PACKAGE_FROM_ROOT = 4;
    const REQUIRE_PACKAGE_INDIRECTLY = 8;
    
    /**
     * Data provider for testErrorDuringPreCreate().
     *
     * @return mixed[][]
     *   The test cases.
     */
    public static function providerErrorDuringPreCreate() : array {
        $summary = t('Problems detected related to the Composer plugin <code>cweagans/composer-patches</code>.');
        return [
            'INVALID: exit-on-patch-failure missing' => [
                static::CONFIG_ALLOWED_PLUGIN | static::REQUIRE_PACKAGE_FROM_ROOT,
                [
                    ValidationResult::createError([
                        t('The <code>composer-exit-on-patch-failure</code> key is not set to <code>true</code> in the <code>extra</code> section of <code>composer.json</code>.'),
                    ], $summary),
                ],
            ],
            'INVALID: indirect dependency' => [
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_INDIRECTLY,
                [
                    ValidationResult::createError([
                        t('It must be a root dependency.'),
                    ], $summary),
                ],
                [
                    'package-manager-faq-composer-patches-not-a-root-dependency',
                    NULL,
                ],
            ],
            'VALID: present' => [
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_FROM_ROOT,
                [],
            ],
            'VALID: absent' => [
                static::ABSENT,
                [],
            ],
        ];
    }
    
    /**
     * Tests that the patcher configuration is validated during pre-create.
     *
     * @param int $options
     *   What aspects of the patcher are installed how.
     * @param \Drupal\package_manager\ValidationResult[] $expected_results
     *   The expected validation results.
     *
     *  @dataProvider providerErrorDuringPreCreate
     */
    public function testErrorDuringPreCreate(int $options, array $expected_results) : void {
        $active_manipulator = new ActiveFixtureManipulator();
        if ($options & static::CONFIG_ALLOWED_PLUGIN) {
            $active_manipulator->addConfig([
                'allow-plugins.cweagans/composer-patches' => TRUE,
            ]);
        }
        if ($options & static::EXTRA_EXIT_ON_PATCH_FAILURE) {
            $active_manipulator->addConfig([
                'extra.composer-exit-on-patch-failure' => TRUE,
            ]);
        }
        if ($options & static::REQUIRE_PACKAGE_FROM_ROOT) {
            $active_manipulator->requirePackage('cweagans/composer-patches', '@dev');
        }
        elseif ($options & static::REQUIRE_PACKAGE_INDIRECTLY) {
            $active_manipulator->addPackage([
                'type' => 'package',
                'name' => 'dummy/depends-on-composer-patches',
                'description' => 'A dummy package depending on cweagans/composer-patches',
                'version' => '1.0.0',
                'require' => [
                    'cweagans/composer-patches' => '*',
                ],
            ]);
        }
        if ($options !== static::ABSENT) {
            $active_manipulator->commitChanges();
        }
        $this->assertStatusCheckResults($expected_results);
        $this->assertResults($expected_results, PreCreateEvent::class);
    }
    
    /**
     * Data provider for testErrorDuringPreApply() and testHelpLink().
     *
     * @return mixed[][]
     *   The test cases.
     */
    public static function providerErrorDuringPreApply() : array {
        $summary = t('Problems detected related to the Composer plugin <code>cweagans/composer-patches</code>.');
        return [
            'composer-patches present in stage, but not present in active' => [
                static::ABSENT,
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_FROM_ROOT,
                [
                    ValidationResult::createError([
                        t('It cannot be installed by Package Manager.'),
                    ], $summary),
                ],
                [
                    'package-manager-faq-composer-patches-installed-or-removed',
                ],
            ],
            'composer-patches partially present (exit missing)  in stage, but not present in active' => [
                static::ABSENT,
                static::CONFIG_ALLOWED_PLUGIN | static::REQUIRE_PACKAGE_FROM_ROOT,
                [
                    ValidationResult::createError([
                        t('It cannot be installed by Package Manager.'),
                        t('The <code>composer-exit-on-patch-failure</code> key is not set to <code>true</code> in the <code>extra</code> section of <code>composer.json</code>.'),
                    ], $summary),
                ],
                [
                    'package-manager-faq-composer-patches-installed-or-removed',
                    NULL,
                ],
            ],
            'composer-patches present due to non-root dependency in stage, but not present in active' => [
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE,
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_INDIRECTLY,
                [
                    ValidationResult::createError([
                        t('It cannot be installed by Package Manager.'),
                        t('It must be a root dependency.'),
                    ], $summary),
                ],
                [
                    'package-manager-faq-composer-patches-installed-or-removed',
                    'package-manager-faq-composer-patches-not-a-root-dependency',
                    NULL,
                ],
            ],
            'composer-patches removed in stage, but present in active' => [
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_FROM_ROOT,
                static::ABSENT,
                [
                    ValidationResult::createError([
                        t('It cannot be removed by Package Manager.'),
                    ], $summary),
                ],
                [
                    'package-manager-faq-composer-patches-installed-or-removed',
                ],
            ],
            'composer-patches present in stage and active' => [
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_FROM_ROOT,
                static::CONFIG_ALLOWED_PLUGIN | static::EXTRA_EXIT_ON_PATCH_FAILURE | static::REQUIRE_PACKAGE_FROM_ROOT,
                [],
                [],
            ],
            'composer-patches not present in stage and active' => [
                static::ABSENT,
                static::ABSENT,
                [],
                [],
            ],
        ];
    }
    
    /**
     * Tests the patcher's presence and configuration are validated on pre-apply.
     *
     * @param int $in_active
     *   Whether patcher is installed in active.
     * @param int $in_stage
     *   Whether patcher is installed in stage.
     * @param \Drupal\package_manager\ValidationResult[] $expected_results
     *   The expected validation results.
     *
     * @dataProvider providerErrorDuringPreApply
     */
    public function testErrorDuringPreApply(int $in_active, int $in_stage, array $expected_results) : void {
        // Simulate in active.
        $active_manipulator = new ActiveFixtureManipulator();
        if ($in_active & static::CONFIG_ALLOWED_PLUGIN) {
            $active_manipulator->addConfig([
                'allow-plugins.cweagans/composer-patches' => TRUE,
            ]);
        }
        if ($in_active & static::EXTRA_EXIT_ON_PATCH_FAILURE) {
            $active_manipulator->addConfig([
                'extra.composer-exit-on-patch-failure' => TRUE,
            ]);
        }
        if ($in_active & static::REQUIRE_PACKAGE_FROM_ROOT) {
            $active_manipulator->requirePackage('cweagans/composer-patches', '@dev');
        }
        if ($in_active !== static::ABSENT) {
            $active_manipulator->commitChanges();
        }
        // Simulate in stage.
        $stage_manipulator = $this->getStageFixtureManipulator();
        if ($in_stage & static::CONFIG_ALLOWED_PLUGIN) {
            $stage_manipulator->addConfig([
                'allow-plugins.cweagans/composer-patches' => TRUE,
            ]);
        }
        if ($in_stage & static::EXTRA_EXIT_ON_PATCH_FAILURE) {
            $stage_manipulator->addConfig([
                'extra.composer-exit-on-patch-failure' => TRUE,
            ]);
        }
        if ($in_stage & static::REQUIRE_PACKAGE_FROM_ROOT && !($in_active & static::REQUIRE_PACKAGE_FROM_ROOT)) {
            $stage_manipulator->requirePackage('cweagans/composer-patches', '1.7.333');
        }
        if (!($in_stage & static::REQUIRE_PACKAGE_FROM_ROOT) && $in_active & static::REQUIRE_PACKAGE_FROM_ROOT) {
            $stage_manipulator->removePackage('cweagans/composer-patches');
        }
        if ($in_stage & static::REQUIRE_PACKAGE_INDIRECTLY) {
            $stage_manipulator->addPackage([
                'type' => 'package',
                'name' => 'dummy/depends-on-composer-patches',
                'description' => 'A dummy package depending on cweagans/composer-patches',
                'version' => '1.0.0',
                'require' => [
                    'cweagans/composer-patches' => '*',
                ],
            ]);
        }
        $stage = $this->createStage();
        $stage->create();
        $stage_dir = $stage->getStageDirectory();
        $stage->require([
            'drupal/core:9.8.1',
        ]);
        try {
            $stage->apply();
            // If we didn't get an exception, ensure we didn't expect any errors.
            $this->assertSame([], $expected_results);
        } catch (StageEventException $e) {
            $this->assertNotEmpty($expected_results);
            $this->assertValidationResultsEqual($expected_results, $e->event
                ->getResults(), NULL, $stage_dir);
        }
    }
    
    /**
     * Tests that validation errors can carry links to help.
     *
     * @param int $in_active
     *   Whether patcher is installed in active.
     * @param int $in_stage
     *   Whether patcher is installed in stage.
     * @param \Drupal\package_manager\ValidationResult[] $expected_results
     *   The expected validation results.
     * @param string[] $help_page_sections
     *   An associative array of fragments (anchors) in the online help. The keys
     *   should be the numeric indices of the validation result messages which
     *   should link to those fragments.
     *
     * @dataProvider providerErrorDuringPreApply
     */
    public function testErrorDuringPreApplyWithHelp(int $in_active, int $in_stage, array $expected_results, array $help_page_sections) : void {
        $this->enableModules([
            'help',
        ]);
        foreach ($expected_results as $result_index => $result) {
            $messages = $result->messages;
            foreach ($messages as $message_index => $message) {
                if ($help_page_sections[$message_index]) {
                    // Get the link to the online documentation for the error message.
                    $url = Url::fromRoute('help.page', [
                        'name' => 'package_manager',
                    ])->setOption('fragment', $help_page_sections[$message_index])
                        ->toString();
                    // Reformat the provided results so that they all have the link to the
                    // online documentation appended to them.
                    $messages[$message_index] = t('@message See <a href=":url">the help page</a> for information on how to resolve the problem.', [
                        '@message' => $message,
                        ':url' => $url,
                    ]);
                }
            }
            $expected_results[$result_index] = ValidationResult::createError($messages, $result->summary);
        }
        $this->testErrorDuringPreApply($in_active, $in_stage, $expected_results);
    }

}