<?php

declare(strict_types = 1);

namespace Drupal\Tests\matomo\Functional;

use Drupal\Core\File\FileSystemInterface;
use Drupal\Tests\BrowserTestBase;

/**
 * Test uninstall functionality of Matomo module.
 *
 * @group Matomo
 */
class MatomoUninstallTest extends BrowserTestBase {

  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'matomo',
  ];

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * Admin user.
   *
   * @var \Drupal\user\UserInterface
   */
  protected $adminUser;

  /**
   * {@inheritdoc}
   */
  protected function setUp(): void {
    parent::setUp();

    $permissions = [
      'access administration pages',
      'administer matomo',
      'administer modules',
    ];

    // User to set up matomo.
    $this->adminUser = $this->drupalCreateUser($permissions);
    $this->drupalLogin($this->adminUser);
  }

  /**
   * Tests if the module cleans up the disk on uninstall.
   */
  public function testMatomoUninstall(): void {
    $cache_path = 'public://matomo';
    $site_id = '1';
    $this->config('matomo.settings')->set('site_id', $site_id)->save();
    $this->config('matomo.settings')->set('url_http', 'http://www.example.com/matomo/')->save();
    $this->config('matomo.settings')->set('url_https', 'https://www.example.com/matomo/')->save();

    // Enable local caching of matomo.js.
    $this->config('matomo.settings')->set('cache', 1)->save();

    // Load front page to get the matomo.js downloaded into local cache. But
    // loading the matomo.js is not possible as "url_http" is a test dummy only.
    // Create a dummy file to complete the rest of the tests.
    \Drupal::service('file_system')->prepareDirectory($cache_path, FileSystemInterface::CREATE_DIRECTORY);
    $data = $this->randomMachineName(128);
    /** @var string $encoded_data */
    $encoded_data = \gzencode($data, 9, \FORCE_GZIP);
    $file_destination = $cache_path . '/matomo.js';
    \Drupal::service('file_system')->saveData($data, $file_destination);
    \Drupal::service('file_system')->saveData($encoded_data, $file_destination . '.gz', FileSystemInterface::EXISTS_REPLACE);

    // Test if the directory and matomo.js exists.
    $this->assertTrue(\Drupal::service('file_system')->prepareDirectory($cache_path), 'Cache directory "public://matomo" has been found.');
    $this->assertTrue(\file_exists($cache_path . '/matomo.js'), 'Cached matomo.js tracking file has been found.');
    $this->assertTrue(\file_exists($cache_path . '/matomo.js.gz'), 'Cached matomo.js.gz tracking file has been found.');

    // Uninstall the module.
    $edit = [];
    $edit['uninstall[matomo]'] = TRUE;
    $this->drupalGet('admin/modules/uninstall');
    $this->submitForm($edit, 'Uninstall');
    $this->assertSession()->pageTextNotContains(\Drupal::translation()->translate('Configuration deletions'));
    $this->submitForm([], 'Uninstall');
    $this->assertSession()->pageTextContains('The selected modules have been uninstalled.');

    // Test if the directory and all files have been removed.
    $this->assertFalse(\Drupal::service('file_system')->prepareDirectory($cache_path), 'Cache directory "public://matomo" has been removed.');
  }

}
