social_lms_integrator-1.0.0-beta4/modules/social_lms_integrator_iteration/social_lms_integrator_iteration.module

<?php
/**
 * @file
 * Contains social_lms_integrator_iteration.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\node\Entity\Node;
use Drupal\node\NodeInterface;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\Core\Url;
use Drupal\Core\Link;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Datetime\DrupalDateTime;
use Drupal\datetime\Plugin\Field\FieldType\DateTimeItemInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Drupal\group\Entity\GroupInterface;



/**
 * Implements hook_theme().
 */
function social_lms_integrator_iteration_theme() {
  $theme['node__iteration__iteration_listing'] = [
    'template' => 'node--iteration--iteration-listing',
    'base hook' => 'node'
  ];

  $theme['iteration_listing_links'] = [
    'variables' => [
      'title' => [],
      'start' => [],
      'end' => [],
      'links' => [],
    ],
  ];

  return $theme;

}

/**
 * Implements hook_form_alter().
 */
function social_lms_integrator_iteration_form_alter(&$form, FormStateInterface $form_state, $form_id) {

  // Form alters for the event add and edit forms.
  if ($form_id === 'node_iteration_edit_form' || $form_id === 'node_iteration_form') {


    // We are using form states here to disable unwanted checkboxes
    $form['field_iteration_enrollment']['widget']['self_application']['#states'] = [
      'disabled' => [
        [
          ':input[name="field_iteration_enrollment[open_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[request_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[invite_only]"]' => ['checked' => TRUE],
        ],       
      ]
    ];

    $form['field_iteration_enrollment']['widget']['nomination_by_supervisor']['#states'] = [
      'disabled' => [
        [
          ':input[name="field_iteration_enrollment[open_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[request_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[invite_only]"]' => ['checked' => TRUE],
        ],       
      ]
    ];


    $form['field_iteration_enrollment']['widget']['invite_only']['#states'] = [
      'disabled' => [
        [
          ':input[name="field_iteration_enrollment[open_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[request_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[self_application]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[nomination_by_supervisor]"]' => ['checked' => TRUE],
        ],        
      ]
    ];

    $form['field_iteration_enrollment']['widget']['open_to_enroll']['#states'] = [
      'disabled' => [
        [
          ':input[name="field_iteration_enrollment[invite_only]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[request_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[self_application]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[nomination_by_supervisor]"]' => ['checked' => TRUE],
        ],         
      ]
    ];

    $form['field_iteration_enrollment']['widget']['request_to_enroll']['#states'] = [
      'disabled' => [
        [
          ':input[name="field_iteration_enrollment[invite_only]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[open_to_enroll]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[self_application]"]' => ['checked' => TRUE],
        ],
        [
          ':input[name="field_iteration_enrollment[nomination_by_supervisor]"]' => ['checked' => TRUE],
        ],         
      ]
    ];

    // Change the sorting of enrollment methods
    $unsorted_iteration_enrollment_options = $form['field_iteration_enrollment']['widget']['#options'];
    $sorted_iteration_enrollment_options = social_lms_integrator_iteration_get_enrollment_methods($unsorted_iteration_enrollment_options);
    $form['field_iteration_enrollment']['widget']['#options'] = $sorted_iteration_enrollment_options;
    
    
    // Get user timezone.
    $user_timezone = _social_event_user_timezone(date_default_timezone_get());
    $timezone_label = t('Time zone');
    $markup = '<div class="control-label margin-bottom-s">' . $timezone_label . '</div>';
    $markup .= '<div class="bg-gray-lightest btn btn-lg">' . $user_timezone . '</div>';
    // Check if user has access to change its timezone.
    $date_config = Drupal::config('system.date');
    if ($date_config->get('timezone.user.configurable')) {
      $description = t('The event date and time are set based on your timezone. @change_timezone.', [
        '@change_timezone' => Link::createFromRoute(
          t('Change your timezone here'),
          'entity.user.edit_form',
          ['user' => \Drupal::currentUser()->id()],
          [
            'attributes' => [
              'target' => '_blank',
            ],
            'fragment' => 'edit-group-locale-settings',
          ]
        )->toString(),
      ]);
    }
    else {
      $description = t("The event date and time are set based on the site's default timezone.");
    }
    $form['timezone_indication'] = [
      '#type' => 'container',
      '#weight' => 99,
      'content' => [
        '#type' => 'item',
        '#markup' => $markup,
        '#description' => $description,
      ],
    ];    
    
   
    if ($form['field_iteration_all_day']['widget']['value']['#default_value']) {
      $start_date = &$form['field_iteration_date']['widget'][0]['value'];
      $start_date['#default_value']->setTimezone(new DateTimeZone(DateTimeItemInterface::STORAGE_TIMEZONE))->setTime(0, 0);
      $start_date['#date_timezone'] = DateTimeItemInterface::STORAGE_TIMEZONE;
      $end_date = &$form['field_iteration_date_end']['widget'][0]['value'];
      $end_date['#default_value']->setTimezone(new DateTimeZone(DateTimeItemInterface::STORAGE_TIMEZONE))->setTime(0, 0);
      $end_date['#date_timezone'] = DateTimeItemInterface::STORAGE_TIMEZONE;
    }    


    $form['#fieldgroups']['group_date_time']->children[] = 'timezone_indication';
    $form['#group_children']['timezone_indication'] = 'group_date_time';
    $form['#after_build'][] = 'social_lms_integrator_iteration_date_after_build';

    // Attach styling for the iteration date fields.
    $form['#attached']['library'][] = 'social_lms_integrator_iteration/admin';
    // Attach clientside validator for enrollment methods.
    $form['#attached']['library'][] = 'social_lms_integrator_iteration/enrollment_method_validator';
    // Attach settings
    $form['#attached']['drupalSettings']['SocialLMSIntegratorIterationEnrollmentMethodValidator'] = [
      'exclusive_elements' => [
        'field_iteration_enrollment[open_to_enroll]',
        'field_iteration_enrollment[request_to_enroll]',
        'field_iteration_enrollment[invite_only]',
      ],
      'all_elements' => [
        'field_iteration_enrollment[open_to_enroll]',
        'field_iteration_enrollment[request_to_enroll]',
        'field_iteration_enrollment[invite_only]',   
        'field_iteration_enrollment[self_application]',
        'field_iteration_enrollment[nomination_by_supervisor]',  
      ]
    ];

    $form['actions']['submit']['#submit'][] = 'social_lms_integrator_iteration_form_submit';

  }
}

function social_lms_integrator_iteration_form_submit($form, FormStateInterface $form_state) {

  $group = _social_group_get_current_group();

  if ($group instanceof GroupInterface) {

    $url = Url::fromRoute('view.group_iterations.page_group_iterations', ['group' => $group->id()]);
    $response = new RedirectResponse($url->toString()); 
    $response->send();

  }

}

/**
 * Add custom validation to event date fields.
 */
function social_lms_integrator_iteration_date_after_build($form, &$form_state) {
  array_unshift($form['field_iteration_date']['widget'][0]['value']['#element_validate'], 'social_lms_integrator_iteration_date_validate');
  array_unshift($form['field_iteration_date_end']['widget'][0]['value']['#element_validate'], 'social_lms_integrator_iteration_date_validate');
  return $form;
}

/**
 * Set default time to the date field if time was not set.
 */
function social_lms_integrator_iteration_date_validate(&$element, FormStateInterface $form_state, &$complete_form) {
  $form_values = $form_state->getValues();
  $input = NestedArray::getValue($form_values, $element['#parents']);

  $all_day = (bool) $form_state->getValue(['field_iteration_all_day', 'value']);

  // End date should not be empty if "All day" option was enabled.
  if ($all_day) {
    if (strpos($element['#name'], 'field_iteration_date_end') !== FALSE) {
      if (empty($input['date'])) {
        $form_state->setError($element, t('End date is required!'));
        return;
      }
    }
  }

  // Skip default validation for required time when date is required.
  if ($all_day) {
    $input['time'] = '00:00:00';
    if (is_null($input['object']) && !empty($input['date'])) {
      $input['object'] = new DrupalDateTime($input['date'] . ' ' . $input['time'], new DateTimeZone(DateTimeItemInterface::STORAGE_TIMEZONE));
    }
    elseif ($input['object'] instanceof DrupalDateTime) {
      $input['object'] = $input['object']->setTimezone(new DateTimeZone(DateTimeItemInterface::STORAGE_TIMEZONE))->setTime(0, 0);
    }
  }
  else {
    if ($input['object'] instanceof DrupalDateTime) {
      $input['object'] = new DrupalDateTime($input['object']->format('Y-m-d H:i:s'), new DateTimeZone(date_default_timezone_get()));
    }
  }

  if ($input['object'] instanceof DrupalDateTime) {
    $form_state->setValueForElement($element, $input);
  }
}

/**
 * Implements hook_field_widget_form_alter().
 */
function social_lms_integrator_iteration_field_widget_form_alter(&$element, FormStateInterface $form_state, $context) {
  $field_definition = $context['items']->getFieldDefinition();
  if ($field_definition->getName() == 'field_iteration_date' || $field_definition->getName() == 'field_iteration_date_end') {
    $element['value']['#date_time_callbacks'][] = 'social_lms_integrator_iteration_date_all_day_checkbox';
  }
}

/**
 * Add 'All day' checkbox to event datetime field.
 */
function social_lms_integrator_iteration_date_all_day_checkbox(&$element, FormStateInterface $form_state, $date) {
  // Time field should disappear when 'All day' is checked.
  $state = [
    ':input[name="field_iteration_all_day[value]"]' => [
      'checked' => TRUE,
    ],
  ];
  $element['time']['#states'] = [
    'invisible' => $state,
  ];
}


function social_lms_integrator_iteration_preprocess_node(&$variables) {  

  if ($variables['view_mode'] === 'iteration_listing') {

    $nid = $variables['node']->id();

    // Default Enrollment methods
    $default_enrollment_methods = [
      'open_to_enroll',
      'request_to_enroll',
      'invite_only'
    ];

    $show_default_enrollment = FALSE;
    $show_invite_only = FALSE;
    $show_edit_link = FALSE;
    $show_date = FALSE;
    $all_day = FALSE;

    if (isset($variables['node']->field_show_date) && $variables['node']->field_show_date->value == 1) {
      $show_date = TRUE;
    }

    if (isset($variables['node']->field_iteration_all_day) && $variables['node']->field_iteration_all_day->value == 1) {
      $all_day = TRUE;
    }    

    if(social_lms_integrator_enrollment_iteration_manager_or_organizer($variables['node'])) {
      $show_edit_link = TRUE;
    }

    $url = Url::fromRoute('entity.node.edit_form',['node' => $nid]);
    $url->setOption('query', \Drupal::destination()->getAsArray(),);
   
    $variables['edit_link'] = [
      '#title' => t('Edit'),
      '#type' => 'link',
      '#url' => $url,
      '#attributes' => [
        'class' => [
          'quick-edit-link'
        ]
      ]
    ];

    // Construct active iteration enrollment methods
    if (isset($variables['node']->field_iteration_enrollment)) {
      $enrollment_methods = $variables['node']->field_iteration_enrollment->referencedEntities();
      if (isset($enrollment_methods)) {        
        foreach ($enrollment_methods as $method) {
          if ($method->id === 'open_to_enroll' ||
              $method->id === 'request_to_enroll') {          
            $show_default_enrollment = TRUE;
          }
          elseif ($method->id === 'invite_only') {
            $show_default_enrollment = TRUE;
            $show_invite_only = TRUE;
          }          
        }
      }
    } 
   
    $variables['show_default_enrollment'] = $show_default_enrollment;
    $variables['show_edit_link'] = $show_edit_link;
    $variables['show_date'] = $show_date;
    $variables['all_day'] = $all_day;
    
    // Add variable for the iteration form
    $variables['iteration_form'] = \Drupal::formBuilder()->getForm('\Drupal\social_lms_integrator_enrollment\Form\IterationActionForm', $nid);

    // If we have an invite form use this
    if ($show_invite_only) {
      $variables['enrollment_form'] = \Drupal::formBuilder()->getForm('\Drupal\social_lms_integrator_iteration_invite\Form\IterationInviteEnrollActionForm', $nid);  
    }
    else {
      $variables['enrollment_form'] = \Drupal::formBuilder()->getForm('\Drupal\social_lms_integrator_enrollment\Form\IterationEnrollActionForm', $nid);
    }
  }

}

function social_lms_integrator_iteration_enrollment_links(int $nid) {

  // Define the arributes for self application
  $attributes_self_application = [
    'class' => [
      'use-ajax',
      'js-form-submit',
      'form-submit',
      'btn',
      'btn-accent',
      'btn-lg',
    ],
    'data-dialog-type' => 'modal',
    'data-dialog-options' => json_encode([
      'title' => t('Request'),
      'width' => 'auto',
    ]),
  ];

  // Define the label for self application
  $self_application_button_label = t('Apply');

  // Define the arributes for self application
  $attributes_nomination_by_supervisor = [
    'class' => [
      'use-ajax',
      'js-form-submit',
      'form-submit',
      'btn',
      'btn-accent',
      'btn-lg',
    ],
    'data-dialog-type' => 'modal',
    'data-dialog-options' => json_encode([
      'title' => t('Request'),
      'width' => 'auto',
    ]),
  ];

  // Get the current user
  $current_user = \Drupal::currentUser();

  // For self-applications we need to check if already applied
  $conditions = [
    'uid' => $current_user->id(),
    'field_iteration' => $nid,
  ];
    
  $application = \Drupal::entityTypeManager()->getStorage('application')
                    ->loadByProperties($conditions);

  if ($application = array_pop($application)) {
    $self_application_button_label = t('Applied');
    $self_application_add_classes = ['disabled'];
    $attributes_self_application['class'][] = 'disabled'; 
  } 


    // Define links and ensure the index has the same name
    // as the machine name of the iteration enrollment method
    $links = [
      'self_application' => [ 
        'title' => $self_application_button_label,
        'url' => Url::fromRoute('social_lms_integrator_enrollment.request_application_dialog',['node' => $nid]),
        'attributes' => $attributes_self_application
      ],
      'nomination_by_supervisor' => [
        'title' => 'Nominate',
        'url' => Url::fromRoute('social_lms_integrator_enrollment.request_nomination_dialog', ['node' => $nid]),
        'attributes' => $attributes_nomination_by_supervisor
      ]
    ];

    return $links;
  
}

/**
 * Check if iteration date is all day.
 */
function social_lms_integrator_iteration_date_is_all_day(DrupalDateTime $date) {
  return $date->format('i') === '01';
}

function social_lms_integrator_iteration_get_enrollment_methods(array $unsorted_options) {
  
  $sorted_iteration_enrollment_methods = [];

  if (isset($unsorted_options)) {

    $query = \Drupal::entityTypeManager()
    ->getStorage('iteration_enrollment_method')
    ->getQuery();  
    $query->sort('weight' , 'ASC'); 
    $query->accessCheck(FALSE);
  
    $sorted_options = $query->execute();

    $sorted_iteration_enrollment_methods = array_merge(array_flip($sorted_options), $unsorted_options);


  }

  return $sorted_iteration_enrollment_methods;

}

/**
 * Return the Iteration from a given page.
 *
 * @return \Drupal\Core\Entity\EntityInterface|null
 *   The iteration or NULL if nothing found.
 */
function social_lms_integrator_iteration_get_current_iteration() {
  $iteration = &drupal_static(__FUNCTION__);

  if (!isset($iteration)) {
    $node = \Drupal::service('current_route_match')->getParameter('node');

    if ($node !== NULL && (!$node instanceof NodeInterface)) {
      $node = Node::load($node);
    }

    if ($node instanceof NodeInterface && $node->getType() === 'iteration') {
      $iteration = $node;
    }

    // If we don't have an iteration then we can go back to NULL.
    if (!isset($iteration)) {
      $iteration = NULL;
    }
  }

  return $iteration;
}