trait OEmbedTestTrait

trait OEmbedTestTrait {
    
    /**
     * Returns the relative path to the oEmbed fixtures directory.
     *
     * @return string
     */
    protected function getFixturesDirectory() : string {
        return \Drupal::service('extension.list.module')->getPath('media') . '/tests/fixtures/oembed';
    }
    
    /**
     * Returns the absolute URL of the oEmbed fixtures directory.
     *
     * @return string
     */
    protected function getFixturesUrl() : string {
        return $this->baseUrl . '/' . $this->getFixturesDirectory();
    }
    
    /**
     * Forces Media to use the provider database in the fixtures directory.
     */
    protected function useFixtureProviders() {
        $this->config('media.settings')
            ->set('oembed_providers_url', $this->getFixturesUrl() . '/providers.json')
            ->save();
    }
    
    /**
     * Configures the HTTP client to always use the fixtures directory.
     *
     * All requests are carried out relative to the URL of the fixtures directory.
     * For example, after calling this method, a request for foobar.html will
     * actually request http://test-site/path/to/fixtures/foobar.html.
     */
    protected function lockHttpClientToFixtures() {
        $this->writeSettings([
            'settings' => [
                'http_client_config' => [
                    'base_uri' => (object) [
                        'value' => $this->getFixturesUrl() . '/',
                        'required' => TRUE,
                    ],
                ],
            ],
        ]);
        // Rebuild the container in case there is already an instantiated service
        // that has a dependency on the http_client service.
        $this->container
            ->get('kernel')
            ->rebuildContainer();
        $this->container = $this->container
            ->get('kernel')
            ->getContainer();
    }
    
    /**
     * Ensures that oEmbed provider endpoints use the test resource route.
     *
     * All oEmbed provider endpoints defined in the fixture providers.json will
     * use the media_test_oembed.resource.get route as their URL.
     *
     * This requires the media_test_oembed module in order to work.
     */
    protected function hijackProviderEndpoints() {
        $providers = $this->getFixturesDirectory() . '/providers.json';
        $providers = file_get_contents($providers);
        $providers = Json::decode($providers);
        $endpoint_url = Url::fromRoute('media_test_oembed.resource.get')->setAbsolute()
            ->toString();
        
        /** @var \Drupal\media_test_oembed\ProviderRepository $provider_repository */
        $provider_repository = $this->container
            ->get('media.oembed.provider_repository');
        foreach ($providers as &$provider) {
            foreach ($provider['endpoints'] as &$endpoint) {
                $endpoint['url'] = $endpoint_url;
            }
            $provider_repository->setProvider(new Provider($provider['provider_name'], $provider['provider_url'], $provider['endpoints']));
        }
    }

}