<?php

namespace Drupal\Tests\entity_browser\FunctionalJavascript;

use Behat\Mink\Element\NodeElement;

/**
 * Test for integration of entity browser and inline entity form.
 *
 * @group entity_browser
 *
 * @package Drupal\Tests\entity_browser\FunctionalJavascript
 */
class InlineEntityFormTest extends EntityBrowserJavascriptTestBase {

  /**
   * {@inheritdoc}
   */
  public static $modules = [
    'ctools',
    'views',
    'block',
    'node',
    'file',
    'image',
    'field_ui',
    'views_ui',
    'system',
    'node',
    'inline_entity_form',
    'entity',
    'entity_browser_ief_test',
  ];

  /**
   * {@inheritdoc}
   */
  protected static $userPermissions = [
    'create media',
    'update media',
    'access ief_entity_browser_file entity browser pages',
    'access ief_entity_browser_file_modal entity browser pages',
    'access content',
    'create ief_content content',
    'edit any ief_content content',
  ];

  /**
   * Drag element in document with defined offset position.
   *
   * @param \Behat\Mink\Element\NodeElement $element
   *   Element that will be dragged.
   * @param int $offsetX
   *   Vertical offset for element drag in pixels.
   * @param int $offsetY
   *   Horizontal offset for element drag in pixels.
   */
  protected function dragDropElement(NodeElement $element, $offsetX, $offsetY) {
    $elemXpath = $element->getXpath();

    $jsCode = "var fireMouseEvent = function (type, element, x, y) {"
      . "  var event = document.createEvent('MouseEvents');"
      . "  event.initMouseEvent(type, true, (type !== 'mousemove'), window, 0, 0, 0, x, y, false, false, false, false, 0, element);"
      . "  element.dispatchEvent(event); };";

    // XPath provided by getXpath uses single quote (') to encapsulate strings,
    // that's why xpath has to be quited with double quites in javascript code.
    $jsCode .= "(function() {" .
      "  var dragElement = document.evaluate(\"{$elemXpath}\", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;" .
      "  var pos = dragElement.getBoundingClientRect();" .
      "  var centerX = Math.floor((pos.left + pos.right) / 2);" .
      "  var centerY = Math.floor((pos.top + pos.bottom) / 2);" .
      "  fireMouseEvent('mousedown', dragElement, centerX, centerY);" .
      "  fireMouseEvent('mousemove', document, centerX + {$offsetX}, centerY + {$offsetY});" .
      "  fireMouseEvent('mouseup', dragElement, centerX + {$offsetX}, centerY + {$offsetY});" .
      "})();";

    $this->getSession()->executeScript($jsCode);
  }

  /**
   * Check that selection state in entity browser Inline Entity Form.
   */
  public function testEntityBrowserInsideInlineEntityForm() {

    $this->createFile('test_file1');
    $this->createFile('test_file2');
    $this->createFile('test_file3');

    $this->drupalGet('node/add/ief_content');
    $page = $this->getSession()->getPage();

    $page->fillField('Title', 'Test IEF Title');
    $page->pressButton('Add new Test File Media');

    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->fillField('Media name', 'Test Bundle Media');
    $page->clickLink('Select entities');

    $this->getSession()
      ->switchToIFrame('entity_browser_iframe_ief_entity_browser_file');
    $page->checkField('entity_browser_select[file:1]');
    $page->checkField('entity_browser_select[file:2]');

    $page->pressButton('Select entities');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Use selected');
    $this->getSession()->switchToIFrame();
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Create Test File Media');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Save');

    $this->drupalGet('node/1/edit');
    $page = $this->getSession()->getPage();

    $page->pressButton('Edit');
    $this->assertSession()->assertWaitOnAjaxRequest();

    // Test reorder of elements.
    $dragged = $this->xpath("//div[@data-drupal-selector='edit-ief-media-field-form-inline-entity-form-entities-0-form-ief-media-bundle-file-field-current-items-0']")[0];
    $this->dragDropElement($dragged, 150, 0);
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Update Test File Media');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Edit');
    $this->assertSession()->assertWaitOnAjaxRequest();

    // Check that element on second position is test_file1 (file:1).
    $secondElement = $page->find('xpath', '//div[@data-drupal-selector="edit-ief-media-field-form-inline-entity-form-entities-0-form-ief-media-bundle-file-field-current"]/div[2]');
    if (empty($secondElement)) {
      throw new \Exception('Element is not found.');
    }
    $this->assertSame('file:1', $secondElement->getAttribute('data-entity-id'));

    // Test remove of element.
    $this->click('input[name*="ief_media_bundle_file_field_remove_1_1"]');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Update Test File Media');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Edit');
    $this->assertSession()->assertWaitOnAjaxRequest();

    // Check that remote button does not exist for already removed entity.
    $this->assertSession()
      ->elementNotExists('css', '[name*="ief_media_bundle_file_field_remove_1_1"]');

    // Test add inside Entity Browser.
    $page->clickLink('Select entities');

    $this->getSession()
      ->switchToIFrame('entity_browser_iframe_ief_entity_browser_file');
    $page->checkField('entity_browser_select[file:3]');

    $page->pressButton('Select entities');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Use selected');
    $this->getSession()->switchToIFrame();
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Update Test File Media');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Edit');
    $this->assertSession()->assertWaitOnAjaxRequest();

    // Check that element on second position is test_file3 (file:3).
    $secondElement = $page->find('xpath', '//div[@data-drupal-selector="edit-ief-media-field-form-inline-entity-form-entities-0-form-ief-media-bundle-file-field-current"]/div[2]');
    if (empty($secondElement)) {
      throw new \Exception('Element is not found.');
    }
    $this->assertSame('file:3', $secondElement->getAttribute('data-entity-id'));

    // Test reorder inside Entity Browser.
    $page->clickLink('Select entities');

    $this->getSession()
      ->switchToIFrame('entity_browser_iframe_ief_entity_browser_file');

    $dragged = $this->xpath("//div[@data-drupal-selector='edit-selected-items-2-0']")[0];
    $this->dragDropElement($dragged, 150, 0);
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Use selected');
    $this->getSession()->switchToIFrame();
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Update Test File Media');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Edit');
    $this->assertSession()->assertWaitOnAjaxRequest();

    // Check that element on second position is test_file2 (file:2).
    $secondElement = $page->find('xpath', '//div[@data-drupal-selector="edit-ief-media-field-form-inline-entity-form-entities-0-form-ief-media-bundle-file-field-current"]/div[2]');
    if (empty($secondElement)) {
      throw new \Exception('Element is not found.');
    }
    $this->assertSame('file:2', $secondElement->getAttribute('data-entity-id'));

    // Test remove inside entity browser.
    $page->clickLink('Select entities');

    $this->getSession()
      ->switchToIFrame('entity_browser_iframe_ief_entity_browser_file');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('remove_3_0');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Use selected');
    $this->getSession()->switchToIFrame();
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Update Test File Media');
    $this->assertSession()->assertWaitOnAjaxRequest();

    $page->pressButton('Edit');
    $this->assertSession()->assertWaitOnAjaxRequest();

    // Check that element on first position is test_file2 (file:2).
    $secondElement = $page->find('xpath', '//div[@data-drupal-selector="edit-ief-media-field-form-inline-entity-form-entities-0-form-ief-media-bundle-file-field-current"]/div[1]');
    if (empty($secondElement)) {
      throw new \Exception('Element is not found.');
    }
    $this->assertSame('file:2', $secondElement->getAttribute('data-entity-id'));
  }

  /**
   * Checks auto_open functionality for modals.
   */
  public function testModalAutoOpenInsideInlineEntityForm() {

    $this->config('core.entity_form_display.node.ief_content.default')
      ->set('content.ief_media_field.third_party_settings.entity_browser_entity_form.entity_browser_id', 'ief_entity_browser_file_modal')
      ->save();

    $this->drupalGet('node/add/ief_content');
    $page = $this->getSession()->getPage();

    $page->fillField('Title', 'Test IEF Title');
    $page->pressButton('Add existing Test File Media');

    $this->assertSession()->assertWaitOnAjaxRequest();

    $this->getSession()
      ->switchToIFrame('entity_browser_iframe_ief_entity_browser_file_modal');

    $this->assertSession()->pageTextContains('Test entity browser file modal');
  }
}