<?php

/**
 * @file
 * Tests the fieldapi integration of viewsdata.
 */

/**
 * @TODO
 *   - Test on a generic entity not on a node.
 *
 * What has to be tested:
 *   - Take sure that every wanted field is added to the according entity type.
 *   - Take sure the joins are done correct.
 *   - Use basic fields and take sure that the full wanted object is build.
 *   - Use relationships between different entity types, for example node and the node author(user).
 */

/**
 * Provides some helper methods for testing fieldapi integration into views.
 */
class ViewsFieldApiTestHelper extends ViewsSqlTest {
  /**
   * Stores the field definitions used by the test.
   * @var array
   */
  public $fields;
  /**
   * Stores the instances of the fields. They have
   * the same keys as the fields.
   * @var array
   */
  public $instances;

  protected function CreateUser($extra_edit = array()) {
    $permissions = array('access comments', 'access content', 'post comments', 'skip comment approval');
    // Create a role with the given permission set.
    if (!($rid = $this->drupalCreateRole($permissions))) {
      return FALSE;
    }

    // Create a user assigned to that role.
    $edit = array();
    $edit['name']   = $this->randomName();
    $edit['mail']   = $edit['name'] . '@example.com';
    $edit['roles']  = array($rid => $rid);
    $edit['pass']   = user_password();
    $edit['status'] = 1;
    $edit += $extra_edit;

    $account = user_save(drupal_anonymous_user(), $edit);

    $this->assertTrue(!empty($account->uid), t('User created with name %name and pass %pass', array('%name' => $edit['name'], '%pass' => $edit['pass'])), t('User login'));
    if (empty($account->uid)) {
      return FALSE;
    }

    // Add the raw password so that we can log in as this user.
    $account->pass_raw = $edit['pass'];
    return $account;
  }

  function setUpFields($amount = 3) {
    // Create three fields.
    $field_names = array();
    for ($i = 0; $i < $amount; $i++) {
      $field_names[$i] = 'field_name_' . $i;
      $field = array('field_name' => $field_names[$i], 'type' => 'text');

      $this->fields[$i] = $field = field_create_field($field);
    }
    return $field_names;
  }

  function setUpInstances($bundle = 'page') {
    foreach ($this->fields as $key => $field) {
      $instance = array(
        'field_name' => $field['field_name'],
        'entity_type' => 'node',
        'bundle' => 'page',
      );
      $this->instances[$key] = field_create_instance($instance);
    }
  }

  /**
   * Clear all views caches and static caches which are required for the patch.
   */
  function clearViewsCaches() {
    // Reset views data cache.
    drupal_static_reset('_views_fetch_data_cache');
    drupal_static_reset('_views_fetch_data_recursion_protected');
    drupal_static_reset('_views_fetch_data_fully_loaded');
  }
}

/**
 * Test the produced views_data.
 */
class viewsFieldApiDataTest extends ViewsFieldApiTestHelper {
  /**
   * Stores the fields for this test case.
   */
  var $fields;

  public static function getInfo() {
    return array(
      'name' => 'Fieldapi: Views Data',
      'description' => 'Tests the fieldapi views data.',
      'group' => 'Views Modules',
    );
  }

  function setUp() {
    parent::setUp();

    $langcode = LANGUAGE_NONE;


    $field_names = $this->setUpFields();

    // The first one will be attached to nodes only.
    $instance = array(
      'field_name' => $field_names[0],
      'entity_type' => 'node',
      'bundle' => 'page',
    );
    field_create_instance($instance);

    // The second one will be attached to users only.
    $instance = array(
      'field_name' => $field_names[1],
      'entity_type' => 'user',
      'bundle' => 'user',
    );
    field_create_instance($instance);

    // The third will be attached to both nodes and users.
    $instance = array(
      'field_name' => $field_names[2],
      'entity_type' => 'node',
      'bundle' => 'page',
    );
    field_create_instance($instance);
    $instance = array(
      'field_name' => $field_names[2],
      'entity_type' => 'user',
      'bundle' => 'user',
    );
    field_create_instance($instance);

    // Now create some example nodes/users for the view result.
    for ($i = 0; $i < 5; $i++) {
      $edit = array(
        // @TODO Write a helper method to create such values.
        'field_name_0' => array($langcode => array((array('value' => $this->randomName())))),
        'field_name_2' => array($langcode => array((array('value' => $this->randomName())))),
      );
      $this->nodes[] = $this->drupalCreateNode($edit);
    }

    for ($i = 0; $i < 5; $i++) {
      $edit = array(
        'field_name_1' => array($langcode => array((array('value' => $this->randomName())))),
        'field_name_2' => array($langcode => array((array('value' => $this->randomName())))),
      );
      $this->users[] = $this->CreateUser($edit);
    }

    // Reset views data cache.
    $this->clearViewsCaches();
  }

  /**
   * Unit testing the views data structure.
   *
   * We check data structure for both node and node revision tables.
   */
  function testViewsData() {
    $data = views_fetch_data();
    
    // Check the table and the joins of the first field.
    // Attached to node only.
    $field = $this->fields[0];
    $current_table = _field_sql_storage_tablename($field);
    $revision_table = _field_sql_storage_revision_tablename($field);

    $this->assertTrue(isset($data[$current_table]));
    $this->assertTrue(isset($data[$revision_table]));
    // The node field should join against node.
    $this->assertTrue(isset($data[$current_table]['table']['join']['node']));
    $this->assertTrue(isset($data[$revision_table]['table']['join']['node_revision']));

    $expected_join = array(
      'left_field' => 'nid',
      'field' => 'entity_id',
      'extra' => array(
        array('field' => 'entity_type', 'value' => 'node'),
        array('field' => 'deleted', 'value' => 0, 'numeric' => TRUE),
      ),
    );
    $this->assertEqual($expected_join, $data[$current_table]['table']['join']['node']);
    $expected_join = array(
      'left_field' => 'vid',
      'field' => 'revision_id',
      'extra' => array(
        array('field' => 'entity_type', 'value' => 'node'),
        array('field' => 'deleted', 'value' => 0, 'numeric' => TRUE),
      ),
    );
    $this->assertEqual($expected_join, $data[$revision_table]['table']['join']['node_revision']);


    // Check the table and the joins of the second field.
    // Attached to both node and user.
    $field_2 = $this->fields[2];
    $current_table_2 = _field_sql_storage_tablename($field_2);
    $revision_table_2 = _field_sql_storage_revision_tablename($field_2);

    $this->assertTrue(isset($data[$current_table_2]));
    $this->assertTrue(isset($data[$revision_table_2]));
    // The second field should join against both node and users.
    $this->assertTrue(isset($data[$current_table_2]['table']['join']['node']));
    $this->assertTrue(isset($data[$revision_table_2]['table']['join']['node_revision']));
    $this->assertTrue(isset($data[$current_table_2]['table']['join']['users']));

    $expected_join = array(
      'left_field' => 'nid',
      'field' => 'entity_id',
      'extra' => array(
        array('field' => 'entity_type', 'value' => 'node'),
        array('field' => 'deleted', 'value' => 0, 'numeric' => TRUE),
      )
    );
    $this->assertEqual($expected_join, $data[$current_table_2]['table']['join']['node']);
    $expected_join = array(
      'left_field' => 'vid',
      'field' => 'revision_id',
      'extra' => array(
        array('field' => 'entity_type', 'value' => 'node'),
        array('field' => 'deleted', 'value' => 0, 'numeric' => TRUE),
      )
    );
    $this->assertEqual($expected_join, $data[$revision_table_2]['table']['join']['node_revision']);
    $expected_join = array(
      'left_field' => 'uid',
      'field' => 'entity_id',
      'extra' => array(
        array('field' => 'entity_type', 'value' => 'user'),
        array('field' => 'deleted', 'value' => 0, 'numeric' => TRUE),
      )
    );
    $this->assertEqual($expected_join, $data[$current_table_2]['table']['join']['users']);

    // Check the fields
    // @todo

    // Check the arguments
    // @todo

    // Check the sort criterias
    // @todo

    // Check the relationships
    // @todo

  }
}

/**
 * Tests the field_field handler.
 * @TODO
 *   Check a entity-type with bundles
 *   Check a entity-type without bundles
 *   Check locale:disabled, locale:enabled and locale:enabled with another language
 *   Check revisions
 */
class viewsHandlerFieldFieldTest extends ViewsFieldApiTestHelper {
  public $nodes;

  public static function getInfo() {
    return array(
      'name' => 'Fieldapi: Field handler',
      'description' => 'Tests the field itself of the fieldapi integration',
      'group' => 'Views Modules'
    );
  }

  protected function setUp() {
    parent::setUp();

    // Setup basic fields.
    $this->setUpFields(3);

    // Setup a field with cardinality > 1.
    $this->fields[3] = $field = field_create_field(array('field_name' => 'field_name_3', 'type' => 'text', 'cardinality' => FIELD_CARDINALITY_UNLIMITED));
    // Setup a field that will have no value.
    $this->fields[4] = $field = field_create_field(array('field_name' => 'field_name_4', 'type' => 'text', 'cardinality' => FIELD_CARDINALITY_UNLIMITED));

    $this->setUpInstances();

    $this->clearViewsCaches();

    // Create some nodes.
    $this->nodes = array();
    for ($i = 0; $i < 3; $i++) {
      $edit = array('type' => 'page');

      for ($key = 0; $key < 3; $key++) {
        $field = $this->fields[$key];
        $edit[$field['field_name']][LANGUAGE_NONE][0]['value'] = $this->randomName(8);
      }
      for ($j = 0; $j < 5; $j++) {
        $edit[$this->fields[3]['field_name']][LANGUAGE_NONE][$j]['value'] = $this->randomName(8);
      }
      // Set this field to be empty.
      $edit[$this->fields[4]['field_name']] = array();

      $this->nodes[$i] = $this->drupalCreateNode($edit);
    }
  }

  public function testFieldRender() {
    $this->_testSimpleFieldRender();
    $this->_testFormatterSimpleFieldRender();
    $this->_testMultipleFieldRender();
  }

  public function _testSimpleFieldRender() {
    $view = $this->getFieldView();
    $this->executeView($view);

    // Tests that the rendered fields match the actual value of the fields.
    for ($i = 0; $i < 3; $i++) {
      for ($key = 0; $key < 2; $key++) {
        $field = $this->fields[$key];
        $rendered_field = $view->style_plugin->get_field($i, $field['field_name']);
        $expected_field = $this->nodes[$i]->{$field['field_name']}[LANGUAGE_NONE][0]['value'];
        $this->assertEqual($rendered_field, $expected_field);
      }
    }
  }

  /**
   * Tests that fields with formatters runs as expected.
   */
  public function _testFormatterSimpleFieldRender() {
    $view = $this->getFieldView();
    $view->display['default']->display_options['fields'][$this->fields[0]['field_name']]['type'] = 'text_trimmed';
    $view->display['default']->display_options['fields'][$this->fields[0]['field_name']]['settings'] = array(
      'trim_length' => 3,
    );
    $this->executeView($view);

    // Take sure that the formatter works as expected.
    // @TODO: actually there should be a specific formatter.
    for ($i = 0; $i < 2; $i++) {
      $rendered_field = $view->style_plugin->get_field($i, $this->fields[0]['field_name']);
      $this->assertEqual(strlen($rendered_field), 3);
    }
  }

  public function _testMultipleFieldRender() {
    $view = $this->getFieldView();

    // Test delta limit.
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['group_rows'] = TRUE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_limit'] = 3;
    $this->executeView($view);

    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin->get_field($i, $this->fields[3]['field_name']);
      $items = array();
      $pure_items = $this->nodes[$i]->{$this->fields[3]['field_name']}[LANGUAGE_NONE];
      $pure_items = array_splice($pure_items, 0, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }
      $this->assertEqual($rendered_field, implode(', ', $items), 'Take sure that the amount of items are limited.');
    }

    // Test that an empty field is rendered without error.
    $rendered_field = $view->style_plugin->get_field(4, $this->fields[4]['field_name']);

    $view->destroy();

    // Test delta limit + offset
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['group_rows'] = TRUE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_limit'] = 3;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_offset'] = 1;
    $this->executeView($view);

    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin->get_field($i, $this->fields[3]['field_name']);
      $items = array();
      $pure_items = $this->nodes[$i]->{$this->fields[3]['field_name']}[LANGUAGE_NONE];
      $pure_items = array_splice($pure_items, 1, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }
      $this->assertEqual($rendered_field, implode(', ', $items), 'Take sure that the amount of items are limited.');
    }
    $view->destroy();

    // Test delta limit + reverse.
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_offset'] = 0;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['group_rows'] = TRUE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_limit'] = 3;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_reversed'] = TRUE;
    $this->executeView($view);

    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin->get_field($i, $this->fields[3]['field_name']);
      $items = array();
      $pure_items = $this->nodes[$i]->{$this->fields[3]['field_name']}[LANGUAGE_NONE];
      array_splice($pure_items, 0, -3);
      $pure_items = array_reverse($pure_items);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }
      $this->assertEqual($rendered_field, implode(', ', $items), 'Take sure that the amount of items are limited.');
    }
    $view->destroy();

    // Test delta first last.
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['group_rows'] = TRUE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_limit'] = 0;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_first_last'] = TRUE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_reversed'] = FALSE;
    $this->executeView($view);

    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin->get_field($i, $this->fields[3]['field_name']);
      $items = array();
      $pure_items = $this->nodes[$i]->{$this->fields[3]['field_name']}[LANGUAGE_NONE];
      $items[] = $pure_items[0]['value'];
      $items[] = $pure_items[4]['value'];
      $this->assertEqual($rendered_field, implode(', ', $items), 'Take sure that the amount of items are limited.');
    }
    $view->destroy();

    // Test delta limit + custom seperator.
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_first_last'] = FALSE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['delta_limit'] = 3;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['group_rows'] = TRUE;
    $view->display['default']->display_options['fields'][$this->fields[3]['field_name']]['separator'] = ':';
    $this->executeView($view);

    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin->get_field($i, $this->fields[3]['field_name']);
      $items = array();
      $pure_items = $this->nodes[$i]->{$this->fields[3]['field_name']}[LANGUAGE_NONE];
      $pure_items = array_splice($pure_items, 0, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }
      $this->assertEqual($rendered_field, implode(':', $items), 'Take sure that the amount of items are limited.');
    }
  }

  protected function getFieldView() {
    $view = new view;
    $view->name = 'view_fieldapi';
    $view->description = '';
    $view->tag = 'default';
    $view->base_table = 'node';
    $view->human_name = 'view_fieldapi';
    $view->core = 7;
    $view->api_version = '3.0';
    $view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */

    /* Display: Master */
    $handler = $view->new_display('default', 'Master', 'default');
    $handler->display->display_options['access']['type'] = 'perm';
    $handler->display->display_options['cache']['type'] = 'none';
    $handler->display->display_options['query']['type'] = 'views_query';
    $handler->display->display_options['exposed_form']['type'] = 'basic';
    $handler->display->display_options['pager']['type'] = 'full';
    $handler->display->display_options['style_plugin'] = 'default';
    $handler->display->display_options['row_plugin'] = 'fields';

    $handler->display->display_options['fields']['nid']['id'] = 'nid';
    $handler->display->display_options['fields']['nid']['table'] = 'node';
    $handler->display->display_options['fields']['nid']['field'] = 'nid';
    foreach ($this->fields as $key => $field) {
      $handler->display->display_options['fields'][$field['field_name']]['id'] = $field['field_name'];
      $handler->display->display_options['fields'][$field['field_name']]['table'] = 'field_data_' . $field['field_name'];
      $handler->display->display_options['fields'][$field['field_name']]['field'] = $field['field_name'];
    }
    return $view;
  }

}