<?php

/**
 * Tests for legacy field replacement.
 */
class TitleFieldReplacementTestCase extends DrupalWebTestCase {

  /**
   *
   */
  public static function getInfo() {
    return array(
      'name' => 'Field replacement',
      'description' => 'Test field replacement.',
      'group' => 'Title',
      'dependencies' => array('entity'),
    );
  }

  /**
   * Use the barebones "testing" installation profile.
   */
  protected $profile = 'testing';

  /**
   * {@inheritdoc}
   */
  public function setUp(array $modules = array()) {
    // Core.
    $modules[] = 'comment';
    $modules[] = 'field_test';
    $modules[] = 'taxonomy';
    // Other dependencies.
    $modules[] = 'entity';
    // This module.
    $modules[] = 'title';
    $modules[] = 'title_test';
    parent::setUp($modules);
  }

  /**
   * Test field replacement API and workflow.
   */
  public function testFieldReplacementWorkflow() {
    $info = entity_get_info('test_entity');
    $label_key = $info['entity keys']['label'];
    $field_name = $label_key . '_field';

    // Enable field replacement for the test entity.
    title_field_replacement_toggle('test_entity', 'test_bundle', $label_key);

    $i = 0;
    $entity = field_test_create_stub_entity(FALSE, FALSE);

    while ($i++ <= 1) {
      // The first time the entity gets created the second time gets updated.
      title_test_entity_save($entity);

      // Check that the replacing field value has been synchronized on save.
      $query = db_select('test_entity', 'te');
      $query->addJoin('INNER', 'field_data_' . $field_name, 'f', 'te.ftid = f.entity_id');
      $record = $query
        ->fields('te')
        ->fields('f')
        ->condition('ftid', $entity->ftid)
        ->execute()
        ->fetch();

      $phase = $entity->is_new ? 'insert' : 'update';
      $this->assertIdentical($record->{$label_key}, $record->{$field_name . '_value'}, t('Field synchronization is correctly performed on %phase.', array('%phase' => $phase)));
      unset($entity->is_new);
    }

    // Store a dummy value in the legacy field.
    while (($label = $this->randomName()) == $entity->{$label_key}) {
    }

    db_update('test_entity')
      ->fields(array($label_key => $label))
      ->execute();

    $record = db_select('test_entity', 'te')
      ->fields('te')
      ->condition('ftid', $entity->ftid)
      ->execute()
      ->fetch();

    $this->assertNotIdentical($record->{$label_key}, $entity->{$label_key}, t('Entity label has been changed.'));

    // Clear field cache so synchronization can be performed on field attach
    // load.
    cache_clear_all('*', 'cache_field');
    drupal_static_reset();

    // Check that the replacing field value is correctly synchronized on load
    // and view.
    $entity = title_test_entity_test_load($entity);
    title_test_phase_check('after_load', $entity);
    entity_view('test_entity', array($entity->ftid => $entity));

    foreach (title_test_phase_store() as $phase => $value) {
      $this->assertTrue($value, t('Field synchronization is correctly performed on %phase.', array('%phase' => $phase)));
    }

    // Change the value stored into the label field to check entity_label().
    if (isset($info['label callback'])) {
      $label = $this->randomName();
      $entity->{$field_name}[LANGUAGE_NONE][0]['value'] = $label;
      $this->assertIdentical(entity_label('test_entity', $entity), $label, t('entity_label() returns the expected value.'));
    }
  }

  /**
   * Test field replacement UI.
   */
  public function testFieldReplacementUI() {
    $permissions = array(
      'access administration pages',
      'view the administration theme',
      'administer content types',
      'administer taxonomy',
      'administer comments',
      'administer fields',
    );
    $admin_user = $this->drupalCreateUser($permissions);
    $this->drupalLogin($admin_user);

    foreach (entity_get_info() as $entity_type => $entity_info) {
      if (!empty($entity_info['field replacement'])) {
        foreach ($entity_info['bundles'] as $bundle => $bundle_info) {
          if (isset($bundle_info['admin']['path'])) {
            $admin_path = _field_ui_bundle_admin_path($entity_type, $bundle) . '/fields';

            foreach ($entity_info['field replacement'] as $legacy_field => $info) {
              $path = $admin_path . '/replace/' . $legacy_field;
              $xpath = '//a[@href=:url and text()=:label]';
              $args = array(':url' => url($path), ':label' => t('replace'));
              $targs = array('%legacy_field' => $legacy_field, '%entity_type' => $entity_type, '%bundle' => $bundle);
              $field_name = $info['field']['field_name'];

              // Check that the current legacy field has a "replace" operation.
              $this->drupalGet($admin_path);
              $link = $this->xpath($xpath, $args);
              $this->assertEqual(count($link), 1, t('Replace link found for the field %legacy_field of the bundle %bundle of the entity %entity_type.', $targs));

              // Check that the legacy field has correctly been replaced through
              // field replacement UI.
              $this->drupalPost($path, array('enabled' => TRUE), t('Save settings'));
              _field_info_collate_fields(TRUE);
              $link = $this->xpath($xpath, $args);
              $this->assertTrue(empty($link) && title_field_replacement_enabled($entity_type, $bundle, $legacy_field), t('%legacy_field successfully replaced for the bundle %bundle of the entity %entity_type.', $targs));

              // Check that the enabled status cannot be changed unless the
              // field instance is removed.
              $this->drupalGet($path);
              $this->assertFieldByXPath('//form//input[@name="enabled" and @checked="checked" and @disabled="disabled"]', NULL, t('Field replacement for %legacy_field cannot be disabled unless the replacing field instance is deleted.', array('%legacy_field' => $legacy_field)));
              $this->drupalPost($path, array(), t('Save settings'));
              _field_info_collate_fields(TRUE);
              $this->assertTrue(title_field_replacement_enabled($entity_type, $bundle, $legacy_field), t('Submitting the form does not alter field replacement settings.'));

              // Delete the field instance and check that the "replace"
              // operation is available again.
              $this->drupalPost($admin_path . '/' . $field_name . '/delete', array(), t('Delete'));
              $link = $this->xpath($xpath, $args);
              $this->assertEqual(count($link), 1, t('Replace link found for the field %legacy_field of the bundle %bundle of the entity %entity_type.', $targs));

              // Check that field replacement can be enabled again.
              $this->drupalGet($path);
              $this->assertFieldByXPath('//form//input[@name="enabled" and not(@checked) and not(@disabled)]', NULL, t('Field replacement for %legacy_field cannot be disabled unless the replacing field instance is deleted.', array('%legacy_field' => $legacy_field)));
            }
          }
        }
      }
    }
  }

}
