class UsageTest

class UsageTest extends FileManagedUnitTestBase {
    
    /**
     * Tests \Drupal\file\FileUsage\DatabaseFileUsageBackend::listUsage().
     */
    public function testGetUsage() {
        $file = $this->createFile();
        $connection = Database::getConnection();
        $connection->insert('file_usage')
            ->fields([
            'fid' => $file->id(),
            'module' => 'testing',
            'type' => 'foo',
            'id' => 1,
            'count' => 1,
        ])
            ->execute();
        $connection->insert('file_usage')
            ->fields([
            'fid' => $file->id(),
            'module' => 'testing',
            'type' => 'bar',
            'id' => 2,
            'count' => 2,
        ])
            ->execute();
        $usage = $this->container
            ->get('file.usage')
            ->listUsage($file);
        $this->assertCount(2, $usage['testing'], 'Returned the correct number of items.');
        $this->assertTrue(isset($usage['testing']['foo'][1]), 'Returned the correct id.');
        $this->assertTrue(isset($usage['testing']['bar'][2]), 'Returned the correct id.');
        $this->assertEquals(1, $usage['testing']['foo'][1], 'Returned the correct count.');
        $this->assertEquals(2, $usage['testing']['bar'][2], 'Returned the correct count.');
    }
    
    /**
     * Tests \Drupal\file\FileUsage\DatabaseFileUsageBackend::add().
     */
    public function testAddUsage() {
        $file = $this->createFile();
        $file_usage = $this->container
            ->get('file.usage');
        $file_usage->add($file, 'testing', 'foo', 1);
        // Add the file twice to ensure that the count is incremented rather than
        // creating additional records.
        $file_usage->add($file, 'testing', 'bar', 2);
        $file_usage->add($file, 'testing', 'bar', 2);
        $usage = Database::getConnection()->select('file_usage', 'f')
            ->fields('f')
            ->condition('f.fid', $file->id())
            ->execute()
            ->fetchAllAssoc('id');
        $this->assertCount(2, $usage, 'Created two records');
        $this->assertEquals('testing', $usage[1]->module, 'Correct module');
        $this->assertEquals('testing', $usage[2]->module, 'Correct module');
        $this->assertEquals('foo', $usage[1]->type, 'Correct type');
        $this->assertEquals('bar', $usage[2]->type, 'Correct type');
        $this->assertEquals(1, $usage[1]->count, 'Correct count');
        $this->assertEquals(2, $usage[2]->count, 'Correct count');
    }
    
    /**
     * Tests file usage deletion when files are made temporary.
     */
    public function testRemoveUsageTemporary() {
        $this->config('file.settings')
            ->set('make_unused_managed_files_temporary', TRUE)
            ->save();
        $file = $this->doTestRemoveUsage();
        $this->assertTrue($file->isTemporary());
    }
    
    /**
     * Tests file usage deletion when files are made temporary.
     */
    public function testRemoveUsageNonTemporary() {
        $this->config('file.settings')
            ->set('make_unused_managed_files_temporary', FALSE)
            ->save();
        $file = $this->doTestRemoveUsage();
        $this->assertFalse($file->isTemporary());
    }
    
    /**
     * Tests \Drupal\file\FileUsage\DatabaseFileUsageBackend::delete().
     */
    public function doTestRemoveUsage() {
        $file = $this->createFile();
        $file->setPermanent();
        $file_usage = $this->container
            ->get('file.usage');
        $connection = Database::getConnection();
        $connection->insert('file_usage')
            ->fields([
            'fid' => $file->id(),
            'module' => 'testing',
            'type' => 'bar',
            'id' => 2,
            'count' => 3,
        ])
            ->execute();
        // Normal decrement.
        $file_usage->delete($file, 'testing', 'bar', 2);
        $count = $connection->select('file_usage', 'f')
            ->fields('f', [
            'count',
        ])
            ->condition('f.fid', $file->id())
            ->execute()
            ->fetchField();
        $this->assertEquals(2, $count, 'The count was decremented correctly.');
        // Multiple decrement and removal.
        $file_usage->delete($file, 'testing', 'bar', 2, 2);
        $count = $connection->select('file_usage', 'f')
            ->fields('f', [
            'count',
        ])
            ->condition('f.fid', $file->id())
            ->execute()
            ->fetchField();
        $this->assertFalse($count, 'The count was removed entirely when empty.');
        // Non-existent decrement.
        $file_usage->delete($file, 'testing', 'bar', 2);
        $count = $connection->select('file_usage', 'f')
            ->fields('f', [
            'count',
        ])
            ->condition('f.fid', $file->id())
            ->execute()
            ->fetchField();
        $this->assertFalse($count, 'Decrementing non-exist record complete.');
        return $file;
    }
    
    /**
     * Create files for all the possible combinations of age and status.
     *
     * We are using UPDATE statements because using the API would set the
     * timestamp.
     */
    public function createTempFiles() {
        
        /** @var \Drupal\file\FileRepositoryInterface $fileRepository */
        $fileRepository = \Drupal::service('file.repository');
        // Temporary file that is old.
        $destination = "public://";
        $temp_old = $fileRepository->writeData('', $destination);
        $connection = Database::getConnection();
        $connection->update('file_managed')
            ->fields([
            'status' => 0,
            'changed' => REQUEST_TIME - $this->config('system.file')
                ->get('temporary_maximum_age') - 1,
        ])
            ->condition('fid', $temp_old->id())
            ->execute();
        $this->assertFileExists($temp_old->getFileUri());
        // Temporary file that is new.
        $temp_new = $fileRepository->writeData('', $destination);
        $connection->update('file_managed')
            ->fields([
            'status' => 0,
        ])
            ->condition('fid', $temp_new->id())
            ->execute();
        $this->assertFileExists($temp_new->getFileUri());
        // Permanent file that is old.
        $perm_old = $fileRepository->writeData('', $destination);
        $connection->update('file_managed')
            ->fields([
            'changed' => REQUEST_TIME - $this->config('system.file')
                ->get('temporary_maximum_age') - 1,
        ])
            ->condition('fid', $temp_old->id())
            ->execute();
        $this->assertFileExists($perm_old->getFileUri());
        // Permanent file that is new.
        $perm_new = $fileRepository->writeData('', $destination);
        $this->assertFileExists($perm_new->getFileUri());
        return [
            $temp_old,
            $temp_new,
            $perm_old,
            $perm_new,
        ];
    }
    
    /**
     * Ensure that temporary files are removed by default.
     */
    public function testTempFileCleanupDefault() {
        [
            $temp_old,
            $temp_new,
            $perm_old,
            $perm_new,
        ] = $this->createTempFiles();
        // Run cron and then ensure that only the old, temp file was deleted.
        $this->container
            ->get('cron')
            ->run();
        $this->assertFileDoesNotExist($temp_old->getFileUri());
        $this->assertFileExists($temp_new->getFileUri());
        $this->assertFileExists($perm_old->getFileUri());
        $this->assertFileExists($perm_new->getFileUri());
    }
    
    /**
     * Ensure that temporary files are kept as configured.
     */
    public function testTempFileNoCleanup() {
        [
            $temp_old,
            $temp_new,
            $perm_old,
            $perm_new,
        ] = $this->createTempFiles();
        // Set the max age to 0, meaning no temporary files will be deleted.
        $this->config('system.file')
            ->set('temporary_maximum_age', 0)
            ->save();
        // Run cron and then ensure that no file was deleted.
        $this->container
            ->get('cron')
            ->run();
        $this->assertFileExists($temp_old->getFileUri());
        $this->assertFileExists($temp_new->getFileUri());
        $this->assertFileExists($perm_old->getFileUri());
        $this->assertFileExists($perm_new->getFileUri());
    }
    
    /**
     * Ensure that temporary files are kept as configured.
     */
    public function testTempFileCustomCleanup() {
        [
            $temp_old,
            $temp_new,
            $perm_old,
            $perm_new,
        ] = $this->createTempFiles();
        // Set the max age to older than default.
        $this->config('system.file')
            ->set('temporary_maximum_age', 21600 + 2)
            ->save();
        // Run cron and then ensure that more files were deleted.
        $this->container
            ->get('cron')
            ->run();
        $this->assertFileExists($temp_old->getFileUri());
        $this->assertFileExists($temp_new->getFileUri());
        $this->assertFileExists($perm_old->getFileUri());
        $this->assertFileExists($perm_new->getFileUri());
    }
    
    /**
     * Tests file usage with translated entities.
     */
    public function testFileUsageWithEntityTranslation() {
        
        /** @var \Drupal\file\FileUsage\FileUsageInterface $file_usage */
        $file_usage = $this->container
            ->get('file.usage');
        $this->enableModules([
            'node',
            'language',
        ]);
        $this->installEntitySchema('node');
        $this->installSchema('node', [
            'node_access',
        ]);
        // Activate English and Romanian languages.
        ConfigurableLanguage::create([
            'id' => 'en',
        ])->save();
        ConfigurableLanguage::create([
            'id' => 'ro',
        ])->save();
        NodeType::create([
            'type' => 'page',
        ])->save();
        ContentLanguageSettings::loadByEntityTypeBundle('node', 'page')->setLanguageAlterable(FALSE)
            ->setDefaultLangcode('en')
            ->save();
        // Create a file field attached to 'page' node-type.
        FieldStorageConfig::create([
            'type' => 'file',
            'entity_type' => 'node',
            'field_name' => 'file',
        ])->save();
        FieldConfig::create([
            'entity_type' => 'node',
            'bundle' => 'page',
            'field_name' => 'file',
            'label' => 'File',
        ])->save();
        // Create a node, attach a file and add a Romanian translation.
        $node = Node::create([
            'type' => 'page',
            'title' => 'Page',
        ]);
        $node->set('file', $file = $this->createFile())
            ->addTranslation('ro', $node->getTranslation('en')
            ->toArray())
            ->save();
        // Check that the file is used twice.
        $usage = $file_usage->listUsage($file);
        $this->assertEquals(2, $usage['file']['node'][$node->id()]);
        // Remove the Romanian translation.
        $node->removeTranslation('ro');
        $node->save();
        // Check that one usage has been removed and is used only once now.
        $usage = $file_usage->listUsage($file);
        $this->assertEquals(1, $usage['file']['node'][$node->id()]);
    }

}