<?php

namespace Drupal\materio_migrate\Plugin\migrate\source;

use Drupal\migrate\Row;
use Drupal\migrate_drupal\Plugin\migrate\source\d7\FieldableEntity;

/**
 * Taxonomy term source from database.
 *
 * @MigrateSource(
 *   id = "d7_taxonomy_term_thesaurus",
 *   source_module = "taxonomy"
 * )
 */
class D7TaxonomyTermThesaurus extends FieldableEntity {

  /**
   * {@inheritdoc}
   */
  public function query() {
    $query = $this->select('taxonomy_term_data', 'td')
      ->fields('td')
      ->distinct()
      ->orderBy('tid');
    $query->leftJoin('taxonomy_vocabulary', 'tv', 'td.vid = tv.vid');
    $query->addField('tv', 'machine_name');

    if (isset($this->configuration['bundle'])) {
      $query->condition('tv.machine_name', (array) $this->configuration['bundle'], 'IN');
    }

    return $query;
  }

  /**
   * {@inheritdoc}
   */
  public function fields() {
    $fields = [
      'tid' => $this->t('The term ID.'),
      'vid' => $this->t('Existing term VID'),
      'machine_name' => $this->t('Vocabulary machine name'),
      'name' => $this->t('The name of the term.'),
      'description' => $this->t('The term description.'),
      'weight' => $this->t('Weight'),
      'parent' => $this->t("The Drupal term IDs of the term's parents."),
      'format' => $this->t("Format of the term description."),
      'synonyms' => $this->t("Term's Synonyms (field : synonyms_synonym)"),
      'displayed_on_advanced_search' => $this->t("field_used_on_advanced_search"),
    ];
    return $fields;
  }


  /**
   * {@inheritdoc}
   */
  public function prepareRow(Row $row) {
    print("\n\n".'-- prepareRow -- '.$row->getSourceProperty('tid')." -- ".$row->getSourceProperty('name')." -- ".$row->getSourceProperty('weight')."\n");

    // Get Field API field values.
    // foreach (array_keys($this->getFields('taxonomy_term', $row->getSourceProperty('machine_name'))) as $field) {
    //   $tid = $row->getSourceProperty('tid');
    //   $row->setSourceProperty($field, $this->getFieldValues('taxonomy_term', $field, $tid));
    //   print("field: ".$field."\n");
    //   print_r($this->getFieldValues('taxonomy_term', $field, $tid));
    //   print("-\n");
    // }

    // Find parents for this row.
    $parents = $this->select('taxonomy_term_hierarchy', 'th')
      ->fields('th', ['parent', 'tid'])
      ->condition('tid', $row->getSourceProperty('tid'))
      ->execute()
      ->fetchCol();
    $row->setSourceProperty('parent', $parents);
    // print_r($parents);

    // get the english term name as defaut
    $query = $this->select('entity_translation', 'et')
      // ->fields('et', [
      //   'entity_id',
      //   'revision_id',
      //   'language',
      //   'source',
      //   'uid',
      //   'status',
      //   'created',
      //   'changed',
      // ])
      // ->distinct()
      ->condition('et.entity_type', 'taxonomy_term')
      ->condition('et.language', 'en')
      ->condition('rnf.language', 'en')
      ->condition('et.entity_id', $row->getSourceProperty('tid'));
    $query->innerjoin('field_revision_name_field', 'rnf', 'rnf.revision_id = et.revision_id');
    $query->fields('rnf', ['name_field_value']);
    $name_field_en = $query->execute()->fetchField();

    print($name_field_en);

    if($name_field_en != NULL && $name_field_en != ""){
      $row->setSourceProperty('name', $name_field_en);
    }

    // If the term name or term description were replaced by real fields using
    // the Drupal 7 Title module, use the fields value instead of the term name
    // or term description.
    // if ($this->moduleExists('title')) {
    //   $name_field = $row->getSourceProperty('name_field');
    //   // print_r($name_field);
    //   if (isset($name_field[0]['value'])) {
    //     $row->setSourceProperty('name', $name_field[0]['value']);
    //   }
    //   $description_field = $row->getSourceProperty('description_field');
    //   if (isset($description_field[0]['value'])) {
    //     $row->setSourceProperty('description', $description_field[0]['value']);
    //   }
    // }

    // Synonyms
    if ($this->moduleExists('title')) {
      $synonyms = $row->getSourceProperty('synonyms_synonym');
      // print_r($synonyms);
      if(!empty($synonyms)){
        $row->setSourceProperty('synonyms', $synonyms);
      }
    }

    // displayed_on_advanced_search
    $advanced_search = $row->getSourceProperty('field_used_on_advanced_search');
    // print_r($advanced_search);
    if(!empty($advanced_search)){
      $row->setSourceProperty('advanced_search', $advanced_search);
    }

    return parent::prepareRow($row);
  }

  /**
   * {@inheritdoc}
   */
  public function getIds() {
    $ids['tid']['type'] = 'integer';
    return $ids;
  }

}