<?php

namespace Drupal\heartbeat\Entity;

use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\Core\Entity\RevisionableContentEntityBase;
use Drupal\Core\Entity\EntityChangedTrait;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\user\UserInterface;

/**
 * Defines the Heartbeat entity.
 *
 * @ingroup heartbeat
 *
 * @ContentEntityType(
 *   id = "heartbeat",
 *   label = @Translation("Heartbeat"),
 *   bundle_label = @Translation("Heartbeat type"),
 *   handlers = {
 *     "storage" = "Drupal\heartbeat\HeartbeatStorage",
 *     "view_builder" = "Drupal\Core\Entity\EntityViewBuilder",
 *     "list_builder" = "Drupal\heartbeat\HeartbeatListBuilder",
 *     "views_data" = "Drupal\heartbeat\Entity\HeartbeatViewsData",
 *     "translation" = "Drupal\heartbeat\HeartbeatTranslationHandler",
 *
 *     "form" = {
 *       "default" = "Drupal\heartbeat\Form\HeartbeatForm",
 *       "add" = "Drupal\heartbeat\Form\HeartbeatForm",
 *       "edit" = "Drupal\heartbeat\Form\HeartbeatForm",
 *       "delete" = "Drupal\heartbeat\Form\HeartbeatDeleteForm",
 *     },
 *     "access" = "Drupal\heartbeat\HeartbeatAccessControlHandler",
 *     "route_provider" = {
 *       "html" = "Drupal\heartbeat\HeartbeatHtmlRouteProvider",
 *     },
 *   },
 *   base_table = "heartbeat",
 *   data_table = "heartbeat_field_data",
 *   revision_table = "heartbeat_revision",
 *   revision_data_table = "heartbeat_field_revision",
 *   translatable = TRUE,
 *   admin_permission = "administer heartbeat entities",
 *   entity_keys = {
 *     "id" = "id",
 *     "revision" = "vid",
 *     "bundle" = "type",
 *     "label" = "name",
 *     "uuid" = "uuid",
 *     "uid" = "uid",
 *     "nid" = "nid",
 *     "langcode" = "langcode",
 *     "status" = "status",
 *   },
 *   links = {
 *     "canonical" = "/admin/structure/heartbeat/{heartbeat}",
 *     "add-page" = "/admin/structure/heartbeat/add",
 *     "add-form" = "/admin/structure/heartbeat/add/{heartbeat_type}",
 *     "edit-form" = "/admin/structure/heartbeat/{heartbeat}/edit",
 *     "delete-form" = "/admin/structure/heartbeat/{heartbeat}/delete",
 *     "version-history" = "/admin/structure/heartbeat/{heartbeat}/revisions",
 *     "revision" = "/admin/structure/heartbeat/{heartbeat}/revisions/{heartbeat_revision}/view",
 *     "revision_revert" = "/admin/structure/heartbeat/{heartbeat}/revisions/{heartbeat_revision}/revert",
 *     "translation_revert" = "/admin/structure/heartbeat/{heartbeat}/revisions/{heartbeat_revision}/revert/{langcode}",
 *     "revision_delete" = "/admin/structure/heartbeat/{heartbeat}/revisions/{heartbeat_revision}/delete",
 *     "collection" = "/admin/structure/heartbeat",
 *   },
 *   bundle_entity_type = "heartbeat_type",
 *   field_ui_base_route = "entity.heartbeat_type.edit_form"
 * )
 */

// Always block from display
const HEARTBEAT_NONE = -1;

// Display only activity messages that are mine or addressed to me
const HEARTBEAT_PRIVATE = 0;

// Only the person that is chosen by the actor, can see the message
const HEARTBEAT_PUBLIC_TO_ADDRESSEE = 1;

// Display activity message of all my user relations, described in contributed modules
const HEARTBEAT_PUBLIC_TO_CONNECTED = 2;

// Everyone can see this activity message, unless this type of message is set to private
const HEARTBEAT_PUBLIC_TO_ALL = 4;


//Group Types

const HEARTBEAT_GROUP_NONE = 11;
const HEARTBEAT_GROUP_SINGLE = 12;
const HEARTBEAT_GROUP_SUMMARY = 13;

const FILE_FIELD = 'Drupal\file\Plugin\Field\FieldType\FileFieldItemList';


class Heartbeat extends RevisionableContentEntityBase implements HeartbeatInterface {

  use EntityChangedTrait;

  /**
   * {@inheritdoc}
   */
  public static function preCreate(EntityStorageInterface $storage_controller, array &$values) {
    parent::preCreate($storage_controller, $values);
  }


  /**
   * {@inheritdoc}
   */
  public function preSave(EntityStorageInterface $storage) {
    parent::preSave($storage);

    foreach (array_keys($this->getTranslationLanguages()) as $langcode) {
      $translation = $this->getTranslation($langcode);

      // If no owner has been set explicitly, make the anonymous user the owner.
      if (!$translation->getOwner()) {
        $translation->setOwnerId(0);
      }
    }

    // If no revision author has been set explicitly, make the heartbeat owner the
    // revision author.
    if (!$this->getRevisionUser()) {
      $this->setRevisionUserId($this->getOwnerId());
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getType() {
    return $this->bundle();
  }

  /**
   * {@inheritdoc}
   */
  public function getName() {
    return $this->get('name')->value;
  }

  /**
   * {@inheritdoc}
   */
  public function setName($name) {
    $this->set('name', $name);
    return $this;
  }

  /**
   * Gets the Heartbeat message.
   *
   * @return string
   *   Message of the Heartbeat.
   */
  public function getMessage() {
    return $this->get('message');
  }

  /**
   * Sets the Heartbeat Message.
   *
   * @param $name
   * @return
   * @internal param string $message The Heartbeat Message
   */
  public function setMessage($message) {
    $this->set('message', $message);
  }

  /**
   * {@inheritdoc}
   */
  public function getCreatedTime() {
    return $this->get('created')->value;
  }

  /**
   * {@inheritdoc}
   */
  public function setCreatedTime($timestamp) {
    $this->set('created', $timestamp);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getOwner() {
    return $this->get('uid')->entity;
  }

  /**
   * {@inheritdoc}
   */
  public function getOwnerId() {
    return $this->get('uid')->target_id;
  }

  /**
   * {@inheritdoc}
   */
  public function setOwnerId($uid) {
    $this->set('uid', $uid);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function setOwner(UserInterface $account) {
    $this->set('uid', $account->id());
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function isPublished() {
    return (bool) $this->getEntityKey('status');
  }

  /**
   * {@inheritdoc}
   */
  public function setPublished($published) {
    $this->set('status', $published ? TRUE : FALSE);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getRevisionCreationTime() {
    return $this->get('revision_timestamp')->value;
  }

  /**
   * {@inheritdoc}
   */
  public function setRevisionCreationTime($timestamp) {
    $this->set('revision_timestamp', $timestamp);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getRevisionUser() {
    return $this->get('revision_uid')->entity;
  }

  /**
   * {@inheritdoc}
   */
  public function setRevisionUserId($uid) {
    $this->set('revision_uid', $uid);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
    $fields = parent::baseFieldDefinitions($entity_type);

    $fields['uid'] = BaseFieldDefinition::create('entity_reference')
      ->setLabel(t('Authored by'))
      ->setDescription(t('The user ID of author of the Heartbeat entity.'))
      ->setRevisionable(TRUE)
      ->setSetting('target_type', 'user')
      ->setSetting('handler', 'default')
      ->setTranslatable(TRUE)
      ->setDisplayOptions('view', array(
        'label' => 'hidden',
        'type' => 'author',
        'weight' => 0,
      ))
      ->setDisplayOptions('form', array(
        'type' => 'entity_reference_autocomplete',
        'weight' => 5,
        'settings' => array(
          'match_operator' => 'CONTAINS',
          'size' => '60',
          'autocomplete_type' => 'tags',
          'placeholder' => '',
        ),
      ))
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE);

    $fields['nid'] = BaseFieldDefinition::create('entity_reference')
      ->setLabel(t('Node'))
      ->setDescription(t('The content associated with this Heartbeat'))
      ->setSetting('target_type', 'node')
      ->setSetting('handler', 'default')
      ->setRevisionable(TRUE);

    $fields['name'] = BaseFieldDefinition::create('string')
      ->setLabel(t('Name'))
      ->setDescription(t('The name of the Heartbeat entity.'))
      ->setRevisionable(TRUE)
      ->setSettings(array(
        'max_length' => 50,
        'text_processing' => 0,
      ))
      ->setDefaultValue('')
      ->setDisplayOptions('view', array(
        'label' => 'above',
        'type' => 'string',
        'weight' => -4,
      ))
      ->setDisplayOptions('form', array(
        'type' => 'string_textfield',
        'weight' => -4,
      ))
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE);


    $fields['message'] = BaseFieldDefinition::create('string_long')
      ->setLabel(t('Message'))
      ->setDescription(t('The message of the Heartbeat entity.'))
      ->setRevisionable(TRUE);

    $fields['status'] = BaseFieldDefinition::create('boolean')
      ->setLabel(t('Publishing status'))
      ->setDescription(t('A boolean indicating whether the Heartbeat is published.'))
      ->setRevisionable(TRUE)
      ->setDefaultValue(TRUE);

    $fields['created'] = BaseFieldDefinition::create('created')
      ->setLabel(t('Created'))
      ->setDescription(t('The time that the entity was created.'));

    $fields['changed'] = BaseFieldDefinition::create('changed')
      ->setLabel(t('Changed'))
      ->setDescription(t('The time that the entity was last edited.'));

    $fields['revision_timestamp'] = BaseFieldDefinition::create('created')
      ->setLabel(t('Revision timestamp'))
      ->setDescription(t('The time that the current revision was created.'))
      ->setQueryable(FALSE)
      ->setRevisionable(TRUE);

    $fields['revision_uid'] = BaseFieldDefinition::create('entity_reference')
      ->setLabel(t('Revision user ID'))
      ->setDescription(t('The user ID of the author of the current revision.'))
      ->setSetting('target_type', 'user')
      ->setQueryable(FALSE)
      ->setRevisionable(TRUE);

    $fields['revision_translation_affected'] = BaseFieldDefinition::create('boolean')
      ->setLabel(t('Revision translation affected'))
      ->setDescription(t('Indicates if the last edit of a translation belongs to current revision.'))
      ->setReadOnly(TRUE)
      ->setRevisionable(TRUE)
      ->setTranslatable(TRUE);

    return $fields;
  }

  /**
   * Returns the node type label for the passed node.
   *
   * @param \Drupal\heartbeat\Entity\HeartbeatInterface $heartbeat
   *   A heartbeat entity to return the heartbeat type's label for.
   *
   * @return string|false
   *   The heartbeat type label or FALSE if the heartbeat type is not found.
   *
   * @todo Add this as generic helper method for config entities representing
   *   entity bundles.
   */
  public function heartbeat_get_type(HeartbeatInterface $heartbeat) {
    $type = HeartbeatType::load($heartbeat->bundle());
    return $type ? $type->label() : FALSE;
  }


  /**
   * Updates all heartbeat activities of one type to be of another type.
   *
   * @param string $old_id
   *   The current heartbeat type of the activities.
   * @param string $new_id
   *   The new heartbeat type of the activities.
   *
   * @return
   *   The number of activities whose heartbeat type field was modified.
   */
  public function heartbeat_type_update_nodes($old_id, $new_id) {
    return \Drupal::entityManager()->getStorage('heartbeat')->updateType($old_id, $new_id);
  }


  /**
   * Builds a message template for a given HeartbeatType
   *
   * @param HeartbeatType $heartbeatType
   * @param null $mediaData
   * @return null|string
   */
  public static function buildMessage(\Drupal\token\Token $tokenService, $preparsedMessage, $entities = NULL, $mediaData = NULL) {

    $parsedMessage = $tokenService->replace($preparsedMessage . '<a href="/node/[node:nid]">', $entities);
    /** @noinspection NestedTernaryOperatorInspection */
    $message = $parsedMessage;
    $message .= $mediaData ? self::buildMediaMarkup($mediaData) : '';
    $message .= '</a>';

    return $message;
  }


  private static function buildMediaMarkup($mediaData) {

    $markup = '';

    foreach ($mediaData as $media) {
      $markup .= self::mediaTag($media->type, $media->path);
    }

    return $markup;
  }

  private static function mediaTag($type, $filePath) {
    //TODO put this into new method
    if ($type == 'image') { $type = 'img';}
    return '<'. $type . ' src="' . str_replace('public://', '/sites/default/files/', $filePath) . '" / >';
  }


  /**
   * Returns class of argument
   *
   * @param $field
   * @return string
   */
  public static function findClass($field) {
    return get_class($field);
  }


  /**
   * Returns an array of classes for array argument
   * @param $fields
   * @return array
   */
  public static function findAllMedia($fields) {
    return array_map(array(get_called_class(), 'findClass'), $fields);
  }


  /**
   * Returns all media types for an array of fields
   *
   * @param $fields
   * @return array
   * @throws \Drupal\Core\Entity\Exception\UndefinedLinkTemplateException
   * @throws \Drupal\Core\Entity\EntityMalformedException
   */
  public static function mediaFieldTypes($fields) {

    $types = array();

    foreach ($fields as $field) {
      if ($field instanceof \Drupal\file\Plugin\Field\FieldType\FileFieldItemList) {

        if ($field->getFieldDefinition()->getType() === 'image' ||
            $field->getFieldDefinition()->getType() === 'video' ||
            $field->getFieldDefinition()->getType() === 'audio') {

          $fieldValue = $field->getValue();
          $fileId = $fieldValue[0]['target_id'];
          $file = \Drupal::entityTypeManager()->getStorage('file')->load($fileId);

          if ($file !== NULL && is_object($file)) {
            $url = \Drupal\Core\Url::fromUri($file->getFileUri());
            $mediaObject = self::createHeartbeatMedia($field->getFieldDefinition()->getType(), $url->getUri());
            $types[] = $mediaObject;

          } else {
            continue;
          }
        }
      }
    }
    return $types;
  }


  /**
   * Parses a HeartbeatType message template and maps
   * variable values onto matching keywords
   *
   * @param $translatedMessage
   * @param $variables
   * @return string
   */
  public static function parseMessage($translatedMessage, $variables) {
    return strtr($translatedMessage, $variables);
  }

  public static function createHeartbeatMedia($type, $path) {

    $mediaObject = new \stdClass();
    $mediaObject->type = $type;
    $mediaObject->path = $path;

    return $mediaObject;
  }


  public static function getEntityNames($entityTypes) {
    $names = array();
    foreach ($entityTypes as $type) {

      if (($type->getBaseTable() === 'node') ||
          ($type->getBaseTable() === 'user')
        ||
          ($type->getStorageClass() !== NULL &&
            strpos($type->getStorageClass(), $type->getLabel()->getUntranslatedString())
          )
      ) {
        $names[] = $type->id();
      }
    }

    sort($names);

    return $names;
  }

  /**
   * Gets the Heartbeat user.
   *
   * @return int
   *   The uid of the Heartbeat's user.
   */
  public function getUid()
  {
    // TODO: Implement getUid() method.
  }

  /**
   * Sets the Heartbeat user.
   *
   * @param int uid
   *   The Heartbeat user.
   *
   */
  public function setUid($uid)
  {
    // TODO: Implement setUid() method.
  }

  /**
   * Gets the Heartbeat's associated node nid.
   *
   * @return int
   *   The nid of the Heartbeat's associated node.
   */
  public function getNid() {
    return $this->get('nid');
  }

  /**
   * Sets the Heartbeat user.
   *
   * @param int uid
   *   The Heartbeat user.
   *
   */
  public function setNid($nid) {
    $this->set('nid', $nid);
  }

}