<?php

namespace Drupal\Tests\views\Kernel\Plugin;

use Drupal\Core\Url;
use Drupal\Core\Menu\MenuTreeParameters;
use Drupal\Core\Session\AnonymousUserSession;
use Drupal\views\Entity\View;
use Drupal\views\Views;
use Drupal\Tests\views\Kernel\ViewsKernelTestBase;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\HttpKernelInterface;

/**
 * Tests the page display plugin.
 *
 * @group views
 * @see \Drupal\views\Plugin\display\Page
 */
class DisplayPageTest extends ViewsKernelTestBase {

  /**
   * Views used by this test.
   *
   * @var array
   */
  public static $testViews = ['test_page_display', 'test_page_display_route', 'test_page_display_menu', 'test_display_more'];

  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    // @todo Remove this in https://www.drupal.org/node/3219959
    'block',
    'system',
    'user',
    'field',
    'views_test_data',
  ];

  /**
   * The router dumper to get all routes.
   *
   * @var \Drupal\Core\Routing\MatcherDumper
   */
  protected $routerDumper;

  /**
   * Checks the behavior of the page for access denied/not found behaviors.
   */
  public function testPageResponses() {
    \Drupal::currentUser()->setAccount(new AnonymousUserSession());
    $subrequest = Request::create('/test_page_display_403', 'GET');
    $response = $this->container->get('http_kernel')->handle($subrequest, HttpKernelInterface::SUB_REQUEST);
    $this->assertEquals(403, $response->getStatusCode());

    $subrequest = Request::create('/test_page_display_404', 'GET');
    $response = $this->container->get('http_kernel')->handle($subrequest, HttpKernelInterface::SUB_REQUEST);
    $this->assertEquals(404, $response->getStatusCode());

    $subrequest = Request::create('/test_page_display_200', 'GET');
    $response = $this->container->get('http_kernel')->handle($subrequest, HttpKernelInterface::SUB_REQUEST);
    $this->assertEquals(200, $response->getStatusCode());

    $subrequest = Request::create('/test_page_display_200', 'GET');
    \Drupal::getContainer()->get('request_stack')->push($subrequest);

    // Test accessing a disabled page for a view.
    $view = Views::getView('test_page_display');
    // Disable the view, rebuild menu, and request the page again.
    $view->storage->disable()->save();
    // Router rebuild would occur in a kernel terminate event so we need to
    // simulate that here.
    \Drupal::service('router.builder')->rebuild();

    $response = $this->container->get('http_kernel')->handle($subrequest, HttpKernelInterface::SUB_REQUEST);
    $this->assertEquals(404, $response->getStatusCode());
  }

  /**
   * Checks that the router items are properly registered.
   */
  public function testPageRouterItems() {
    $collection = \Drupal::service('views.route_subscriber')->routes();

    // Check the controller defaults.
    foreach ($collection as $id => $route) {
      $this->assertEquals('Drupal\\views\\Routing\\ViewPageController::handle', $route->getDefault('_controller'));
      $id_parts = explode('.', $id);
      $this->assertEquals($id_parts[1], $route->getDefault('view_id'));
      $this->assertEquals($id_parts[2], $route->getDefault('display_id'));
    }

    // Check the generated patterns and default values.
    $route = $collection->get('view.test_page_display_route.page_1');
    $this->assertEquals('/test_route_without_arguments', $route->getPath());

    $route = $collection->get('view.test_page_display_route.page_2');
    $this->assertEquals('/test_route_with_argument/{arg_0}', $route->getPath());
    $this->assertTrue($route->hasDefault('arg_0'), 'A default value is set for the optional argument id.');

    $route = $collection->get('view.test_page_display_route.page_3');
    $this->assertEquals('/test_route_with_argument/{arg_0}/suffix', $route->getPath());
    $this->assertFalse($route->hasDefault('arg_0'), 'No default value is set for the required argument id.');

    $route = $collection->get('view.test_page_display_route.page_4');
    $this->assertEquals('/test_route_with_argument/{arg_0}/suffix/{arg_1}', $route->getPath());
    $this->assertFalse($route->hasDefault('arg_0'), 'No default value is set for the required argument id.');
    $this->assertTrue($route->hasDefault('arg_1'), 'A default value is set for the optional argument id_2.');

    $route = $collection->get('view.test_page_display_route.page_5');
    $this->assertEquals('/test_route_with_argument/{arg_0}/{arg_1}', $route->getPath());
    $this->assertTrue($route->hasDefault('arg_0'), 'A default value is set for the optional argument id.');
    $this->assertTrue($route->hasDefault('arg_1'), 'A default value is set for the optional argument id_2.');

    $route = $collection->get('view.test_page_display_route.page_6');
    $this->assertEquals('/test_route_with_argument/{arg_0}/{arg_1}', $route->getPath());
    $this->assertFalse($route->hasDefault('arg_0'), 'No default value is set for the required argument id.');
    $this->assertFalse($route->hasDefault('arg_1'), 'No default value is set for the required argument id_2.');
  }

  /**
   * Tests the generated menu links of views.
   */
  public function testMenuLinks() {
    \Drupal::service('plugin.manager.menu.link')->rebuild();
    $tree = \Drupal::menuTree()->load('admin', new MenuTreeParameters());
    $this->assertTrue(isset($tree['system.admin']->subtree['views_view:views.test_page_display_menu.page_4']));
    $menu_link = $tree['system.admin']->subtree['views_view:views.test_page_display_menu.page_4']->link;
    $this->assertEquals('Test child (with parent)', $menu_link->getTitle());
    $this->assertEquals(TRUE, $menu_link->isExpanded());
    $this->assertEquals('Sample description.', $menu_link->getDescription());
  }

  /**
   * Tests the calculated dependencies for various views using Page displays.
   */
  public function testDependencies() {
    $view = Views::getView('test_page_display');
    $this->assertSame(['module' => ['views_test_data']], $view->getDependencies());

    $view = Views::getView('test_page_display_route');
    $expected = [
      'content' => ['StaticTest'],
      'module' => ['views_test_data'],
    ];
    $this->assertSame($expected, $view->getDependencies());

    $view = Views::getView('test_page_display_menu');
    $expected = [
      'config' => [
        'system.menu.admin',
        'system.menu.tools',
      ],
      'module' => [
        'views_test_data',
      ],
    ];
    $this->assertSame($expected, $view->getDependencies());
  }

  /**
   * Tests the readmore functionality.
   */
  public function testReadMore() {
    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container->get('renderer');

    $expected_more_text = 'custom more text';

    $view = Views::getView('test_display_more');
    $this->executeView($view);

    $output = $view->preview();
    $output = $renderer->renderRoot($output);

    $this->setRawContent($output);
    $result = $this->xpath('//div[@class=:class]/a', [':class' => 'more-link']);
    $this->assertEquals(Url::fromRoute('view.test_display_more.page_1')->toString(), $result[0]->attributes()->href, 'The right more link is shown.');
    $this->assertEquals($expected_more_text, trim($result[0][0]), 'The right link text is shown.');

    // Test the renderMoreLink method directly. This could be directly unit
    // tested.
    $more_link = $view->display_handler->renderMoreLink();
    $more_link = $renderer->renderRoot($more_link);
    $this->setRawContent($more_link);
    $result = $this->xpath('//div[@class=:class]/a', [':class' => 'more-link']);
    $this->assertEquals(Url::fromRoute('view.test_display_more.page_1')->toString(), $result[0]->attributes()->href, 'The right more link is shown.');
    $this->assertEquals($expected_more_text, trim($result[0][0]), 'The right link text is shown.');

    // Test the useMoreText method directly. This could be directly unit
    // tested.
    $more_text = $view->display_handler->useMoreText();
    $this->assertEquals($expected_more_text, $more_text, 'The right more text is chosen.');

    $view = Views::getView('test_display_more');
    $view->setDisplay();
    $view->display_handler->setOption('use_more', 0);
    $this->executeView($view);
    $output = $view->preview();
    $output = $renderer->renderRoot($output);
    $this->setRawContent($output);
    $result = $this->xpath('//div[@class=:class]/a', [':class' => 'more-link']);
    $this->assertEmpty($result, 'The more link is not shown.');

    $view = Views::getView('test_display_more');
    $view->setDisplay();
    $view->display_handler->setOption('use_more', 0);
    $view->display_handler->setOption('use_more_always', 0);
    $view->display_handler->setOption('pager', [
      'type' => 'some',
      'options' => [
        'items_per_page' => 1,
        'offset' => 0,
      ],
    ]);
    $this->executeView($view);
    $output = $view->preview();
    $output = $renderer->renderRoot($output);
    $this->setRawContent($output);
    $result = $this->xpath('//div[@class=:class]/a', [':class' => 'more-link']);
    $this->assertEmpty($result, 'The more link is not shown when view has more records.');

    // Test the default value of use_more_always.
    $view = View::create()->getExecutable();
    $this->assertTrue($view->getDisplay()->getOption('use_more_always'), 'Always display the more link by default.');
  }

  /**
   * Tests the templates with empty rows.
   */
  public function testEmptyRow() {
    $view = Views::getView('test_page_display');
    $view->initDisplay();
    $view->newDisplay('page', 'Page', 'empty_row');
    $view->save();

    $styles = [
      'default' => '//div[@class="views-row"]',
      // Olivero does not use the 'views-col' class.
      'grid' => '//div[contains(@class, "views-col") or contains(@class, "views-view-grid__item-inner")]',
      'html_list' => '//div[@class="item-list"]//li',
    ];

    $themes = ['olivero', 'stable9', 'stark', 'claro'];

    foreach ($themes as $theme) {
      \Drupal::service('theme_installer')->install([$theme]);
      \Drupal::theme()->setActiveTheme(\Drupal::service('theme.initialization')->initTheme($theme));
      foreach ($styles as $type => $xpath) {
        $view = Views::getView('test_page_display');
        $view->storage->invalidateCaches();
        $view->initDisplay();
        $view->setDisplay('empty_row');
        $view->displayHandlers->get('empty_row')->default_display->options['style']['type'] = $type;
        $view->initStyle();
        $this->executeView($view);
        $output = $view->preview();
        $output = \Drupal::service('renderer')->renderRoot($output);
        $this->setRawContent($output);
        $this->assertCount(5, $this->xpath("{$xpath}[not(text()) and not(node())]"), "Empty rows in theme '$theme', type '$type'.");
      }
    }
  }

}
