<?php

/**
 * Setup the Posts Block Rest Calls
 *
 * @since   2.0.0
 * @package AFT Blocks
 */


/**
 * Class to setup new rest calls.
 */
if (!class_exists('Aft_Post_Rest_Controller')) {
  class Aft_Post_Rest_Controller extends WP_REST_Controller
  {

    /**
     * Type property name.
     */
    const PROP_TYPE = 'type';

    /**
     * Type property name.
     */
    const PROP_TYPE_ARRAY = 'type_array';

    /**
     * Query property name.
     */
    const PROP_QUERY = 'query';
    /**
     * Query property name.
     */
    const PROP_MULTIPLE = 'multiple';

    /**
     * Query property name.
     */
    const PROP_ORDER_BY = 'order_by';

    /**
     * Query property name.
     */
    const PROP_ORDER = 'order';

    /**
     * Query property name.
     */
    const PROP_ALLOW_STICKY = 'allow_sticky';

    /**
     * Query property name.
     */
    const PROP_OFFSET = 'offset';

    /**
     * Query property name.
     */
    const PROP_TAX = 'tax';

    /**
     * Query property name.
     */
    const PROP_EXCLUDE = 'exclude';

    /**
     * Query property name.
     */
    const PROP_CUSTOM_TAX = 'custom_tax';
    /**
     * Query property name.
     */
    const PROP_TAGS = 'tags';
    /**
     * Query property name.
     */
    const PROP_CATEGORY = 'category';

    /**
     * Query property name.
     */
    const PROP_TAX_TYPE = 'tax_type';

    /**
     * Search property name.
     */
    const PROP_SEARCH = 'search';

    /**
     * Include property name.
     */
    const PROP_INCLUDE = 'include';

    /**
     * Per page property name.
     */
    const PROP_PER_PAGE = 'per_page';

    /**
     * Per page property name.
     */
    const PROP_POST_ID = 'post_id';

    /**
     * Page property name.
     */
    const PROP_PAGE = 'page';


    /**
     * Constructor.
     */
    public function __construct()
    {
      $this->namespace = 'aft/v1';
      $this->query_base = 'post-query';
    }

    /**
     * Registers the routes for the objects of the controller.
     *
     * @see register_rest_route()
     */
    public function register_routes()
    {

      register_rest_route(
        $this->namespace,
        '/' . $this->query_base,
        array(
          array(
            'methods'             => WP_REST_Server::READABLE,
            'callback'            => array($this, 'get_query_items'),
            'permission_callback' => array($this, 'get_items_permission_check'),
            'args'                => $this->get_query_params(),
          ),
        )
      );
    }
    public function get_items_permission_check($request)
    {
      return current_user_can('edit_posts');
    }
    public function get_query_items($request)
    {

      $prop_type      = $request->get_param(self::PROP_TYPE);
      $query_type     = $request->get_param(self::PROP_QUERY);
      $tax_type       = $request->get_param(self::PROP_TAX_TYPE);


      $categories     = ($request->get_param(self::PROP_CATEGORY) ? wp_parse_list($request->get_param(self::PROP_CATEGORY)) : array());
      $tags = ($request->get_param(self::PROP_TAGS) ? wp_parse_list($request->get_param(self::PROP_TAGS)) : array());
      if (empty($query_type)) {
        return array();
      }

      $query_args = array(
        'post_type' => $prop_type,
      );
      if ('individual' === $query_type) {
        $query_args['post__in']            = $request->get_param(self::PROP_INCLUDE);
        $query_args['orderby']             = 'post__in';
        $query_args['posts_per_page']      = -1;
        $query_args['ignore_sticky_posts'] = 1;
      } else {
        $query_args['posts_per_page']      = $request->get_param(self::PROP_PER_PAGE);
        $query_args['tax_query']           = array();
        $query_args['orderby']             = $request->get_param(self::PROP_ORDER_BY);
        $query_args['order']               = $request->get_param(self::PROP_ORDER);
        $query_args['offset']              = $request->get_param(self::PROP_OFFSET);

        $query_args['post_status']         = 'publish';
        $query_args['ignore_sticky_posts'] = $request->get_param(self::PROP_ALLOW_STICKY);
        $current_post_id                   = $request->get_param(self::PROP_POST_ID);
        if (! empty($current_post_id)) {
          $query_args['post__not_in']        = array($current_post_id);
        }
        if ('post' !== $prop_type || $request->get_param(self::PROP_CUSTOM_TAX)) {
          if ($tax_type) {
            if (!empty($categories)) {
              $query_args['tax_query'][] = array(
                'taxonomy' => (isset($tax_type)) ? $tax_type : 'category',
                'field'    => 'id',
                'terms'    => (isset($categories)) ? $categories : '',
                'operator' => (isset($exclude) && 'exclude' === $exclude ? 'NOT IN' : 'IN'),
              );
            }
          }
        } else if ('post' == $prop_type) {
          if ($tax_type) {


            if (!empty($categories)) {
              $query_args['tax_query'][] = array(
                'taxonomy' => (isset($tax_type)) ? $tax_type : 'category',
                'field'    => 'term_id',
                'terms'    => (!empty($categories)) ? $categories : '',
                'operator' => (isset($exclude) && 'exclude' === $exclude ? 'NOT IN' : 'IN')

              );
            } else {

              if ($tax_type  == 'post_tag') {
                if (empty($tags)) {
                  $taxonomy = $tax_type; // this is the name of the taxonomy
                  $terms = get_terms($taxonomy);

                  $query_args['tax_query'][] = array(
                    'taxonomy' => (isset($tax_type)) ? $tax_type : 'category',
                    'field' => 'term_id',
                    'terms' => wp_list_pluck($terms, 'term_id')

                  );
                } else {
                  $query_args['tax_query'][] = array(
                    'taxonomy' => (isset($tax_type)) ? $tax_type : 'category',
                    'field' => 'id',
                    'terms' => $tags,

                  );
                }
              } else {

                $taxonomy = $tax_type; // this is the name of the taxonomy
                $terms = get_terms($taxonomy);
                $query_args['tax_query'][] = array(
                  'taxonomy' => (isset($tax_type)) ? $tax_type : 'category',
                  'field' => 'term_id',
                  'terms' => wp_list_pluck($terms, 'term_id')

                );
              }
            }
          }
        } else {
          $tags = ($request->get_param(self::PROP_TAGS) ? wp_parse_list($request->get_param(self::PROP_TAGS)) : array());

          $query_args['category__in'] = $categories;
          $query_args['tag__in']      = $tags;
        }
      }
      $query = new WP_Query($query_args);
      $posts = array();

      foreach ($query->posts as $post) {
        $posts[] = $this->prepare_query_item_for_response($post, $request, $tax_type);
      }

      return rest_ensure_response($posts);
    }

    public function prepare_query_item_for_response($post, $request, $tax_type)
    {
      $excerpt = $this->blockspare_api_excerpt($post, $length = 15);
      $new_excerpt = apply_filters('the_excerpt', $excerpt);
      $data = array(
        'id' => $post->ID,
        'date' => $this->prepare_date_response($post->post_date_gmt, $post->post_date),
        'date_gmt' => $this->prepare_date_response($post->post_date_gmt),
        'modified' => $this->prepare_date_response($post->post_modified_gmt, $post->post_modified),
        'modified_gmt' => $this->prepare_date_response($post->post_modified_gmt),
        'title' => array(
          'raw'      => $post->post_title,
          'rendered' => get_the_title($post->ID),
        ),
        'excerpt' => array(
          'raw'      => $post->post_excerpt,
          'rendered' => get_the_excerpt($post->ID),
        ),
        'data_content' => wp_kses_post($excerpt),
        'type' => $post->post_type,
        'slug' => $post->post_name,
        'status' => $post->post_status,
        'link' => get_permalink($post->ID),
        'author' => absint($post->post_author),
        'display_name' => get_the_author_meta('display_name', $request['author']),
        'author_link' => get_author_posts_url($request['author']),
        'featured_media' => get_post_thumbnail_id($post->ID),
      );

      $attachment_id = get_post_thumbnail_id($post->ID);

      $image = wp_get_attachment_image_src(
        get_post_thumbnail_id($post),
        'full',
        false
      );
      $sizes = get_intermediate_image_sizes();

      $imageSizes = array(
        'full' => is_array($image) ? $image : '',
      );

      foreach ($sizes as $size) {
        $imageSizes[$size] = is_array($image) ? wp_get_attachment_image_src($attachment_id, $size, false) : '';
      }

      $data['featured_image_src_large'] = $imageSizes;

      //$author_data = array();
      if (post_type_supports($post->post_type, 'author')) {
        $blockspare = new BlocksapreMultiAuthorForBackend();


        $data['author_info'] = $blockspare->blockspare_by_author($post);
      }
      if ('post' != $post->post_type || 'comments' != $post->post_type  || 'author' != $post->post_type) {
        $blockspare = new BlocksapreMultiAuthorForBackend();

        $data['author_info'] = $blockspare->blockspare_by_author($post);
      }
      //$data['author_info'] = $author_data;
      if (post_type_supports($post->post_type, 'comments')) {
        $comments_count = wp_count_comments($post->ID);
        $data['comment_count'] = $comments_count->total_comments;
      }
      if ('post' === $post->post_type) {
        if ($tax_type == 'category' || $tax_type == '') {
          $data['category_info'] = get_the_category($post->ID);
        } else if ($tax_type == 'post_tag') {
          $data['taxonomy_info']      = json_encode(get_the_tags($post->ID));
        } else if (!empty($tax_type) && ($tax_type != 'category' || $tax_type != 'post_tag')) {

          $term_items = array();
          $terms = get_the_terms($post->ID, $tax_type);

          if (! empty($terms)) {

            foreach ($terms as $term_key => $term_item) {
              $term_items[] = array(
                'term_id' => $term_item->term_id,
                'name' => $term_item->name,
              );
            }

            $data['taxonomy_info'] = json_encode($term_items);
          }
        } else {
          $data['category_info'] = get_the_category($post->ID);
        }
      } else {
        $taxonomies = get_object_taxonomies($post->post_type, 'objects');
        $taxs = array();
        $term_items = array();
        foreach ($taxonomies as $term_slug => $term) {
          if (! $term->public || ! $term->show_ui) {
            continue;
          }
          $terms = get_the_terms($post->ID, $term_slug);

          if (! empty($terms)) {

            foreach ($terms as $term_key => $term_item) {
              $term_items[] = array(
                'term_id' => $term_item->term_id,
                'name' => $term_item->name,
              );
            }
          }
        }
        $data['category_info'] = get_the_category($post->ID);
        $data['taxonomy_info'] = json_encode($term_items);
      }


      return $data;
    }

    protected function blockspare_api_excerpt($post, $length = '')
    {

      $excerpt = get_post_field(
        'post_excerpt',
        $post->post_id,
        'display'
      );

      preg_replace('~^(\s*(?:&nbsp;)?)*~i', '', $excerpt);
      if (empty($excerpt)) {

        $excerpt = preg_replace(
          array(
            '/\<figcaption>.*\<\/figcaption>/',
            '/\[caption.*\[\/caption\]/',
            '`[[^]]*]`'
          ),
          '',
          $post->post_content
        );
      }


      // Trim the excerpt if necessary.
      if (isset($length)) {
        $excerpt = wp_trim_words(
          $excerpt,
          $length
        );
      }

      return $excerpt;
    }

    protected function prepare_date_response($date_gmt, $date = null)
    {
      // Use the date if passed.
      if (isset($date)) {
        return mysql2date('Y-m-d\TH:i:s', $date, false);
      }

      // Return null if $date_gmt is empty/zeros.
      if ('0000-00-00 00:00:00' === $date_gmt) {
        return null;
      }

      // Return the formatted datetime.
      return mysql2date('Y-m-d\TH:i:s', $date_gmt, false);
    }


    public function get_query_params()
    {
      $query_params  = parent::get_collection_params();

      $query_params[self::PROP_TYPE] = array(
        'description' => __('Limit results to items of a specific post type.', 'blockspare'),
        'type'        => 'string',
        'sanitize_callback' => array($this, 'sanitize_post_type_string'),
        'validate_callback' => array($this, 'validate_post_type_string'),
      );

      $query_params[self::PROP_INCLUDE] = array(
        'description' => __('Include posts by ID.', 'blockspare'),
        'type'        => 'array',
        'validate_callback' => array($this, 'validate_post_ids'),
        'sanitize_callback' => array($this, 'sanitize_post_ids'),
      );
      $query_params[self::PROP_PER_PAGE] = array(
        'description' => __('Number of results to return.', 'blockspare'),
        'type'        => 'number',
        'sanitize_callback' => array($this, 'sanitize_post_perpage'),
        'default' => 25,
      );
      $query_params[self::PROP_QUERY] = array(
        'description' => __('Define Type of Query.', 'blockspare'),
        'type'        => 'string',
      );
      $query_params[self::PROP_ORDER] = array(
        'description' => __('Define Query Order.', 'blockspare'),
        'type'        => 'string',
      );
      $query_params[self::PROP_ORDER_BY] = array(
        'description' => __('Define Query Order By.', 'blockspare'),
        'type'        => 'string',
      );
      $query_params[self::PROP_ALLOW_STICKY] = array(
        'description'       => __('Allow Sticky in Query.', 'blockspare'),
        'type'              => 'boolean',
        'sanitize_callback' => array($this, 'sanitize_allow_sticky'),
      );
      $query_params[self::PROP_EXCLUDE] = array(
        'description' => __('Exclude Category.', 'blockspare'),
        'type'        => 'string',
      );
      $query_params[self::PROP_OFFSET] = array(
        'description' => __('Number of items to offset in query.', 'blockspare'),
        'type'        => 'number',
        'sanitize_callback' => array($this, 'sanitize_results_page_number'),
        'default' => 0,
      );
      $query_params[self::PROP_POST_ID] = array(
        'description' => __('The Current Post ID.', 'blockspare'),
        'type'        => 'number',
      );
      $query_params[self::PROP_CUSTOM_TAX] = array(
        'description' => __('Check if using a custom Taxonomy', 'blockspare'),
        'type'              => 'boolean',
        'sanitize_callback' => array($this, 'sanitize_allow_sticky'),
      );
      $query_params[self::PROP_TAX_TYPE] = array(
        'description' => __('Define Query Order By.', 'blockspare'),
        'type'        => 'string',
      );
      $query_params[self::PROP_CATEGORY] = array(
        'description' => __('Include posts category.', 'blockspare'),
        'type'              => 'string',
        'sanitize_callback' => 'wp_parse_id_list',
      );
      $query_params[self::PROP_TAGS] = array(
        'description' => __('Include posts tags.', 'blockspare'),
        'type'              => 'string',
        'sanitize_callback' => 'wp_parse_id_list',
      );
      return $query_params;
    }

    public function sanitize_post_ids($ids)
    {
      return array_map('absint', $ids);
    }
    public function validate_post_ids($ids)
    {
      return count($ids) > 0;
    }
    public function sanitize_post_perpage($val)
    {
      return min(absint($val), 100);
    }
    public function sanitize_allow_sticky($val)
    {
      return $val ? 0 : 1;
    }
    public function sanitize_results_page_number($val)
    {
      return absint($val);
    }
    public function validate_post_type_string($value)
    {
      $allowed_types = $this->get_allowed_post_types();
      return in_array($value, $allowed_types);
    }

    public function sanitize_post_type_string($post_type, $request)
    {
      return sanitize_text_field($post_type);
    }

    public function get_allowed_post_types()
    {
      $allowed_types = array_values(
        get_post_types(
          array(
            'show_in_rest'       => true,
            'public'             => true,
          )
        )
      );

      $key = array_search('attachment', $allowed_types, true);

      if (false !== $key) {
        unset($allowed_types[$key]);
      }

      /**
       * Filter the allowed post types.
       *
       * Note that if you allow this for posts that are not otherwise public,
       * this data will be accessible using this endpoint for any logged in user with the edit_post capability.
       */
      return apply_filters('aft_blocks_allowed_post_types', $allowed_types);
    }
  }
}