<?php

/**
 * @file
 * Helper module for the Batch API tests.
 */

use Drupal\Core\Form\FormState;

/**
 * Batch operation: Submits form_test_mock_form().
 */
function _batch_test_nested_drupal_form_submit_callback($value) {
  $form_state = (new FormState())
    ->setValue('test_value', $value);
  \Drupal::formBuilder()->submitForm('Drupal\batch_test\Form\BatchTestMockForm', $form_state);
}

/**
 * Batch 0: Does nothing.
 */
function _batch_test_batch_0() {
  $batch = [
    'operations' => [],
    'finished' => '_batch_test_finished_0',
    'file' => drupal_get_path('module', 'batch_test') . '/batch_test.callbacks.inc',
  ];
  return $batch;
}

/**
 * Batch 1: Repeats a simple operation.
 *
 * Operations: op 1 from 1 to 10.
 */
function _batch_test_batch_1() {
  // Ensure the batch takes at least two iterations.
  $total = 10;
  $sleep = (1000000 / $total) * 2;

  $operations = [];
  for ($i = 1; $i <= $total; $i++) {
    $operations[] = ['_batch_test_callback_1', [$i, $sleep]];
  }
  $batch = [
    'operations' => $operations,
    'finished' => '_batch_test_finished_1',
    'file' => drupal_get_path('module', 'batch_test') . '/batch_test.callbacks.inc',
  ];
  return $batch;
}

/**
 * Batch 2: Performs a single multistep operation.
 *
 * Operations: op 2 from 1 to 10.
 */
function _batch_test_batch_2() {
  // Ensure the batch takes at least two iterations.
  $total = 10;
  $sleep = (1000000 / $total) * 2;

  $operations = [
    ['_batch_test_callback_2', [1, $total, $sleep]],
  ];
  $batch = [
    'operations' => $operations,
    'finished' => '_batch_test_finished_2',
    'file' => drupal_get_path('module', 'batch_test') . '/batch_test.callbacks.inc',
  ];
  return $batch;
}

/**
 * Batch 3: Performs both single and multistep operations.
 *
 * Operations:
 * - op 1 from 1 to 5,
 * - op 2 from 1 to 5,
 * - op 1 from 6 to 10,
 * - op 2 from 6 to 10.
 */
function _batch_test_batch_3() {
  // Ensure the batch takes at least two iterations.
  $total = 10;
  $sleep = (1000000 / $total) * 2;

  $operations = [];
  for ($i = 1; $i <= round($total / 2); $i++) {
    $operations[] = ['_batch_test_callback_1', [$i, $sleep]];
  }
  $operations[] = ['_batch_test_callback_2', [1, $total / 2, $sleep]];
  for ($i = round($total / 2) + 1; $i <= $total; $i++) {
    $operations[] = ['_batch_test_callback_1', [$i, $sleep]];
  }
  $operations[] = ['_batch_test_callback_2', [6, $total / 2, $sleep]];
  $batch = [
    'operations' => $operations,
    'finished' => '_batch_test_finished_3',
    'file' => drupal_get_path('module', 'batch_test') . '/batch_test.callbacks.inc',
  ];
  return $batch;
}

/**
 * Batch 4: Performs a batch within a batch.
 *
 * Operations:
 * - op 1 from 1 to 5,
 * - set batch 2 (op 2 from 1 to 10, should run at the end)
 * - op 1 from 6 to 10,
 */
function _batch_test_batch_4() {
  // Ensure the batch takes at least two iterations.
  $total = 10;
  $sleep = (1000000 / $total) * 2;

  $operations = [];
  for ($i = 1; $i <= round($total / 2); $i++) {
    $operations[] = ['_batch_test_callback_1', [$i, $sleep]];
  }
  $operations[] = ['_batch_test_nested_batch_callback', []];
  for ($i = round($total / 2) + 1; $i <= $total; $i++) {
    $operations[] = ['_batch_test_callback_1', [$i, $sleep]];
  }
  $batch = [
    'operations' => $operations,
    'finished' => '_batch_test_finished_4',
    'file' => drupal_get_path('module', 'batch_test') . '/batch_test.callbacks.inc',
  ];
  return $batch;
}

/**
 * Batch 5: Repeats a simple operation.
 *
 * Operations: op 1 from 1 to 10.
 */
function _batch_test_batch_5() {
  // Ensure the batch takes at least two iterations.
  $total = 10;
  $sleep = (1000000 / $total) * 2;

  $operations = [];
  for ($i = 1; $i <= $total; $i++) {
    $operations[] = ['_batch_test_callback_5', [$i, $sleep]];
  }
  $batch = [
    'operations' => $operations,
    'finished' => '_batch_test_finished_5',
    'file' => drupal_get_path('module', 'batch_test') . '/batch_test.callbacks.inc',
  ];
  return $batch;
}

/**
 * Implements callback_batch_operation().
 *
 * Tests the progress page theme.
 */
function _batch_test_theme_callback() {
  // Because drupalGet() steps through the full progressive batch before
  // returning control to the test function, we cannot test that the correct
  // theme is being used on the batch processing page by viewing that page
  // directly. Instead, we save the theme being used in a variable here, so
  // that it can be loaded and inspected in the thread running the test.
  $theme = \Drupal::theme()->getActiveTheme()->getName();
  batch_test_stack($theme);
}

/**
 * Tests the title on the progress page by performing a batch callback.
 */
function _batch_test_title_callback() {
  // Because drupalGet() steps through the full progressive batch before
  // returning control to the test function, we cannot test that the correct
  // title is being used on the batch processing page by viewing that page
  // directly. Instead, we save the title being used in a variable here, so
  // that it can be loaded and inspected in the thread running the test.
  $request = \Drupal::request();
  $route_match = \Drupal::routeMatch();
  $title = \Drupal::service('title_resolver')->getTitle($request, $route_match->getRouteObject());
  batch_test_stack($title);
}

/**
 * Helper function: Stores or retrieves traced execution data.
 */
function batch_test_stack($data = NULL, $reset = FALSE) {
  if ($reset) {
    \Drupal::state()->delete('batch_test.stack');
  }
  if (!isset($data)) {
    return \Drupal::state()->get('batch_test.stack');
  }
  $stack = \Drupal::state()->get('batch_test.stack');
  $stack[] = $data;
  \Drupal::state()->set('batch_test.stack', $stack);
}