<?php

namespace Drupal\file\Tests;

use Drupal\file\Entity\File;

/**
 * Tests that files are uploaded to proper locations.
 *
 * @group file
 */
class FileFieldPathTest extends FileFieldTestBase {
  /**
   * Tests the normal formatter display on node display.
   */
  public function testUploadPath() {
    /** @var \Drupal\node\NodeStorageInterface $node_storage */
    $node_storage = $this->container->get('entity.manager')->getStorage('node');
    $field_name = strtolower($this->randomMachineName());
    $type_name = 'article';
    $this->createFileField($field_name, 'node', $type_name);
    /** @var \Drupal\file\FileInterface $test_file */
    $test_file = $this->getTestFile('text');

    // Create a new node.
    $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);

    // Check that the file was uploaded to the correct location.
    $node_storage->resetCache([$nid]);
    $node = $node_storage->load($nid);
    /** @var \Drupal\file\FileInterface $node_file */
    $node_file = $node->{$field_name}->entity;
    $date_formatter = $this->container->get('date.formatter');
    $expected_filename =
      'public://' .
      $date_formatter->format(REQUEST_TIME, 'custom', 'Y') . '-' .
      $date_formatter->format(REQUEST_TIME, 'custom', 'm') . '/' .
      $test_file->getFilename();
    $this->assertPathMatch($expected_filename, $node_file->getFileUri(), format_string('The file %file was uploaded to the correct path.', ['%file' => $node_file->getFileUri()]));

    // Change the path to contain multiple subdirectories.
    $this->updateFileField($field_name, $type_name, ['file_directory' => 'foo/bar/baz']);

    // Upload a new file into the subdirectories.
    $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);

    // Check that the file was uploaded into the subdirectory.
    $node_storage->resetCache([$nid]);
    $node = $node_storage->load($nid);
    $node_file = File::load($node->{$field_name}->target_id);
    $this->assertPathMatch('public://foo/bar/baz/' . $test_file->getFilename(), $node_file->getFileUri(), format_string('The file %file was uploaded to the correct path.', ['%file' => $node_file->getFileUri()]));

    // Check the path when used with tokens.
    // Change the path to contain multiple token directories.
    $this->updateFileField($field_name, $type_name, ['file_directory' => '[current-user:uid]/[current-user:name]']);

    // Upload a new file into the token subdirectories.
    $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);

    // Check that the file was uploaded into the subdirectory.
    $node_storage->resetCache([$nid]);
    $node = $node_storage->load($nid);
    $node_file = File::load($node->{$field_name}->target_id);
    // Do token replacement using the same user which uploaded the file, not
    // the user running the test case.
    $data = ['user' => $this->adminUser];
    $subdirectory = \Drupal::token()->replace('[user:uid]/[user:name]', $data);
    $this->assertPathMatch('public://' . $subdirectory . '/' . $test_file->getFilename(), $node_file->getFileUri(), format_string('The file %file was uploaded to the correct path with token replacements.', ['%file' => $node_file->getFileUri()]));
  }

  /**
   * Asserts that a file is uploaded to the right location.
   *
   * @param string $expected_path
   *   The location where the file is expected to be uploaded. Duplicate file
   *   names to not need to be taken into account.
   * @param string $actual_path
   *   Where the file was actually uploaded.
   * @param string $message
   *   The message to display with this assertion.
   */
  public function assertPathMatch($expected_path, $actual_path, $message) {
    // Strip off the extension of the expected path to allow for _0, _1, etc.
    // suffixes when the file hits a duplicate name.
    $pos = strrpos($expected_path, '.');
    $base_path = substr($expected_path, 0, $pos);
    $extension = substr($expected_path, $pos + 1);

    $result = preg_match('/' . preg_quote($base_path, '/') . '(_[0-9]+)?\.' . preg_quote($extension, '/') . '/', $actual_path);
    $this->assertTrue($result, $message);
  }

}