<?php

class EntityReferenceOgContextTestCase extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => 'OG-context integration',
      'description' => 'Test the OG-context integration, which allows prepopulating by the group context.',
      'group' => 'Entity reference prepopulate',
      'dependencies' => array('og'),
    );
  }

  function setUp() {
    parent::setUp('og_context', 'entityreference_prepopulate_test');

    $this->user1 = $this->drupalCreateUser();
    $this->user2 = $this->drupalCreateUser(array('bypass node access', 'administer group'));

    $type = $this->drupalCreateContentType();
    $this->group_type = $type->type;
    og_create_field(OG_GROUP_FIELD, 'node', $this->group_type);

    $type = $this->drupalCreateContentType();
    $this->group_content_type = $type->type;

    $og_field = og_fields_info(OG_AUDIENCE_FIELD);
    // Enable the prepopulate behavior.
    $og_field['instance']['settings']['behaviors']['prepopulate'] = array(
      'status' => TRUE,
      'action' => 'none',
      'fallback' => 'none',
      'skip_perm' => FALSE,
      'og_context' => TRUE,
    );
    og_create_field(OG_AUDIENCE_FIELD, 'node', $this->group_content_type, $og_field);
  }

  /**
   * Test the OG-context integration.
   */
  function testPrepopulate() {
    $settings = array(
      'type' => $this->group_type,
      'uid' => $this->user1->uid,
    );
    $settings[OG_GROUP_FIELD][LANGUAGE_NONE][0]['value'] = 1;
    $group1 = $this->drupalCreateNode($settings);

    og_group('node', $group1, array('entity_type' => 'user', 'entity' => $this->user2));

    $this->drupalLogin($this->user2);
    $this->drupalGet('node/add/' . str_replace('_', '-', $this->group_content_type));
    $this->assertNoOptionSelected('edit-og-group-ref-und-0-default', 1, 'Group-audience fields is not selected.');

    // Set the OG-context();
    // See entityreference_prepopulate_init().
    $options = array(
      'query' => array(
        'gid' => $group1->nid,
      ),
    );

    $this->drupalGet('node/add/' . str_replace('_', '-', $this->group_content_type), $options);
    $this->assertOptionSelected('edit-og-group-ref-und-0-default', 1, 'Group-audience fields is selected.');
  }
}

class EntityReferenceReferenceRemain extends DrupalWebTestCase {
  public $user;
  public $node1;
  public $node2;

  public static function getInfo() {
    return array(
      'name' => 'Prepopulate settings',
      'description' => 'Verify the reference between entity is remaining when saving the node.',
      'group' => 'Entity reference prepopulate',
    );
  }

  public function setUp() {
    parent::setUp(array('entityreference', 'entityreference_prepopulate'));

    $content_type = $this->drupalCreateContentType();
    $field = array(
      'field_name' => 'node_ref',
      'type' => 'entityreference',
      'cardinality' => 1,
    );
    field_create_field($field);

    $instance = array(
      'field_name' => 'node_ref',
      'entity_type' => 'node',
      'label' => 'Node ref',
      'bundle' => $content_type->type,
      'settings' => array(
        'behaviors' => array(
          'prepopulate' => array(
            'status' => TRUE,
            'action' => 'none',
            'fallback' => 'none',
          )
        ),
      ),
    );
    field_create_instance($instance);

    $this->user = $this->drupalCreateUser(array('bypass node access'));

    // Creating two nodes - referencing node and referenced node.
    $this->node1 = $this->drupalCreateNode(array(
      'title' => 'Referencing node',
      'type' => $content_type->type,
    ));

    $this->node2 = $this->drupalCreateNode(array(
      'title' => 'Referenced node',
      'type' => $content_type->type,
    ));

    // Reference the first node to the second node.
    $wrapper = entity_metadata_wrapper('node', $this->node1->nid);
    $wrapper->node_ref->set($this->node2->nid);
    $wrapper->save();
  }

  /**
   * Set various settings of the entity reference prepopulate settings.
   */
  function testScenarioReference() {
    $this->drupalLogin($this->user);

    // Verify the basic prepopulate option.
    $options = array('query' => array('node_ref' => $this->node2->nid));
    $edit = array('title' => 'Referencing node');

    $this->drupalPost('node/add/' . $this->node1->type, $edit, t('Save'), $options);
    $this->assertText('Referenced node', 'The reference has been created');

    // Disable the field.
    $this->changeInstanceSettings(array('action' => 'disable'));

    $this->drupalGet('node/add/' . $this->node1->type, $options);

    $xpath = $this->xpath('//input[@id="edit-node-ref-und-0-target-id" and @disabled="disabled" and @value="Referenced node (' . $this->node2->nid . ')"]');
    $this->assertTrue(!empty($xpath), 'The field is disabled and default value is set to the node 2.');

    $this->drupalPost('node/add/' . $this->node1->type, $edit, t('Save'), $options);
    $this->assertText('Referenced node', 'The reference has been created');

    // Hide the field.
    $this->changeInstanceSettings(array('action' => 'hide'));

    $xpath = $this->xpath('//input[@id="edit-node-ref-und-0-target-id"]');
    $this->assertTrue(empty($xpath), 'The field is not visible to the user.');

    $this->drupalPost('node/add/' . $this->node1->type, $edit, t('Save'), $options);
    $this->assertText('Referenced node', 'The reference has been created');

    // Set an error when the prepopulated value is missing.
    $this->changeInstanceSettings(array('fallback' => 'form_error'));

    $this->drupalGet('node/add/' . $this->node1->type);
    $this->assertText('Field Node ref must be populated via URL.', 'The error of the missing  prepopulated value has been set.');

    // Redirect when there is the prepopulated field is missing.
    $this->changeInstanceSettings(array('fallback' => 'redirect'));

    $this->drupalGet('node/add/' . $this->node1->type);
    $this->assertTrue($this->getUrl() == url('<front>', array('absolute' => TRUE)), 'The redirect of due to non prepoulated value.');

    // Verify the basic edit.
    $this->changeInstanceSettings(array(
      'action' => 'hide',
      'action_on_edit' => FALSE,
    ));
    $this->drupalGet('node/' . $this->node1->nid . '/edit');

    $xpath = $this->xpath('//input[@id="edit-node-ref-und-0-target-id"]');
    $this->assertTrue(!empty($xpath), "The node reference is visible to the user.");

    $this->drupalPost('node/' . $this->node1->nid . '/edit', array('title' => 'Referencing node'), t('Save'));
    $this->verifyReferenceRemain();

    // Hide the field when editing.
    $this->changeInstanceSettings(array(
      'action' => 'hide',
      'action_on_edit' => TRUE,
    ));

    $this->drupalGet('node/' . $this->node1->nid . '/edit');
    $xpath = $this->xpath('//input[@id="edit-node-ref-und-0-target-id"]');
    $this->assertTrue(empty($xpath), "The node reference is invisible to the user.");

    $this->drupalPost('node/' . $this->node1->nid . '/edit', array('title' => 'Referencing node'), t('Save'), $options);
    $this->verifyReferenceRemain();

    // Disable the field.
    $this->changeInstanceSettings(array('action' => 'disable'));

    $this->drupalGet('node/' . $this->node1->nid . '/edit');
    $xpath = $this->xpath('//input[@id="edit-node-ref-und-0-target-id" and @disabled="disabled" and @value="Referenced node (' . $this->node2->nid . ')"]');
    $this->assertTrue(!empty($xpath), 'The field is disabled and default value is set to the node 2.');

    $this->drupalPost('node/' . $this->node1->nid . '/edit', array('title' => 'Referencing node'), t('Save'));
    $this->verifyReferenceRemain();
  }

  /**
   * Change the settings of the instance.
   */
  private function changeInstanceSettings($settings) {
    $instance = field_info_instance('node', 'node_ref', $this->node1->type);
    $old_settings = $instance['settings']['behaviors']['prepopulate'];
    $instance['settings']['behaviors']['prepopulate'] = $settings + $old_settings;
    field_update_instance($instance);
  }

  /**
   * Verify the node reference remained.
   */
  private function verifyReferenceRemain() {
    // Loading a fresh node object from the DB.
    $node = node_load($this->node1->nid, NULL, TRUE);
    $wrapper = entity_metadata_wrapper('node', $node);
    $this->assertTrue($wrapper->node_ref->getIdentifier() == $this->node2->nid, 'The reference from node 1 to node 2 remained.');
  }
}