<?php
/**
 * Partial: Latest Recommendations
 *
 * Renders the (buffered) HTML for the [fictioneer_latest_recommendations] shortcode.
 *
 * @package WordPress
 * @subpackage Fictioneer
 * @since 4.0.0
 *
 * @internal $args['uid']               Unique ID of the shortcode. Pattern: shortcode-id-{id}.
 * @internal $args['type']              Type argument passed from shortcode. Default 'default'.
 * @internal $args['count']             Number of posts provided by the shortcode.
 * @internal $args['author']            Author provided by the shortcode.
 * @internal $args['order']             Order of posts. Default 'DESC'.
 * @internal $args['orderby']           Sorting of posts. Default 'date'.
 * @internal $args['post_ids']          Array of post IDs. Default empty.
 * @internal $args['post_status']       Queried post status. Default 'publish'.
 * @internal $args['author_ids']        Array of author IDs. Default empty.
 * @internal $args['excluded_authors']  Array of author IDs to exclude. Default empty.s
 * @internal $args['excluded_cats']     Array of category IDs to exclude. Default empty.
 * @internal $args['excluded_tags']     Array of tag IDs to exclude. Default empty.
 * @internal $args['ignore_protected']  Whether to ignore protected posts. Default false.
 * @internal $args['only_protected']    Whether to query only protected posts. Default false.
 * @internal $args['taxonomies']        Array of taxonomy arrays. Default empty.
 * @internal $args['relation']          Relationship between taxonomies.
 * @internal $args['vertical']          Whether to show the vertical variant.
 * @internal $args['seamless']          Whether to render the image seamless. Default false (Customizer).
 * @internal $args['aspect_ratio']      Aspect ratio for the image. Only with vertical.
 * @internal $args['terms']             Either inline, pills, none, or false. Default inline.
 * @internal $args['max_terms']         Maximum number of shown taxonomies. Default 10.
 * @internal $args['lightbox']          Whether the image is opened in the lightbox. Default true.
 * @internal $args['thumbnail']         Whether the image is rendered. Default true (Customizer).
 * @internal $args['classes']           String of additional CSS classes. Default empty.
 * @internal $args['splide']            Configuration JSON for the Splide slider. Default empty.
 */


// No direct access!
defined( 'ABSPATH' ) OR exit;

// Setup
$splide = $args['splide'] ?? 0;
$show_terms = ! get_option( 'fictioneer_hide_taxonomies_on_recommendation_cards' );

// Prepare query
$query_args = array (
  'fictioneer_query_name' => 'latest_recommendations',
  'post_type' => 'fcn_recommendation',
  'post_status' => $args['post_status'],
  'post__in' => $args['post_ids'], // May be empty!
  'order' => $args['order'],
  'orderby' => $args['orderby'],
  'posts_per_page' => $args['count'],
  'no_found_rows' => true
);

// Author?
if ( ! empty( $args['author'] ) ) {
  $query_args['author_name'] = $args['author'];
}

// Author IDs?
if ( ! empty( $args['author_ids'] ) ) {
  $query_args['author__in'] = $args['author_ids'];
}

// Taxonomies?
if ( ! empty( $args['taxonomies'] ) ) {
  $query_args['tax_query'] = fictioneer_get_shortcode_tax_query( $args );
}

// Excluded tags?
if ( ! empty( $args['excluded_tags'] ) ) {
  $query_args['tag__not_in'] = $args['excluded_tags'];
}

// Excluded categories?
if ( ! empty( $args['excluded_cats'] ) ) {
  $query_args['category__not_in'] = $args['excluded_cats'];
}

// Excluded authors?
if ( ! empty( $args['excluded_authors'] ) ) {
  $query_args['author__not_in'] = $args['excluded_authors'];
}

// Ignore protected?
if ( $args['ignore_protected'] ) {
  $query_args['has_password'] = false;
}

// Only protected?
if ( $args['only_protected'] ) {
  $query_args['has_password'] = true;
}

// Apply filters
$query_args = apply_filters( 'fictioneer_filter_shortcode_latest_recommendations_query_args', $query_args, $args );

// Query recommendations
$entries = fictioneer_shortcode_query( $query_args );

// Extra attributes
$attributes = [];

if ( $splide ) {
  $attributes[] = "data-splide='{$splide}'";
}

?>

<section class="small-card-block latest-recommendations <?php echo $args['classes']; ?>" <?php echo implode( ' ', $attributes ); ?>>
  <?php
    if ( $args['splide'] === false ) {
      echo '<div class="shortcode-json-invalid">' . __( 'Splide JSON is invalid and has been ignored.', 'fictioneer' ) . '</div>';
    }

    if ( $splide ) {
      echo fictioneer_get_splide_loading_style( $splide, $args['uid'] );
      echo fictioneer_get_splide_placeholders( $args['uid'] );
      echo '<div class="splide__track">';
    }
  ?>

    <?php if ( $entries->have_posts() ) : ?>

      <ul class="grid-columns <?php if ( $splide ) { echo 'splide__list'; } ?>">
        <?php while ( $entries->have_posts() ) : $entries->the_post(); ?>

          <?php
            // Setup
            $post_id = $post->ID;
            $title = fictioneer_get_safe_title( $post_id, 'shortcode-latest-recommendations' );
            $one_sentence = get_post_meta( $post_id, 'fictioneer_recommendation_one_sentence', true );
            $fandoms = $show_terms ? get_the_terms( $post, 'fcn_fandom' ) : [];
            $characters = $show_terms ? get_the_terms( $post, 'fcn_character' ) : [];
            $genres = $show_terms ? get_the_terms( $post, 'fcn_genre' ) : [];
            $tags = ( $show_terms && get_option( 'fictioneer_show_tags_on_recommendation_cards' ) ) ?
              get_the_tags( $post ) : false;
            $grid_or_vertical = $args['vertical'] ? '_vertical' : '_grid';
            $card_classes = [];

            // Extra card classes
            $card_classes[] = '_' . $args['post_status'];

            if ( get_theme_mod( 'card_style', 'default' ) !== 'default' ) {
              $card_classes[] = '_' . get_theme_mod( 'card_style' );
            }

            if ( $args['vertical'] ) {
              $card_classes[] = '_vertical';
            }

            if ( $args['seamless'] ) {
              $card_classes[] = '_seamless';
            }

            if ( ! $show_terms ) {
              $card_classes[] = '_no-tax';
            }

            if ( $splide ) {
              $card_classes[] = 'splide__slide';
            }

            // Truncate factor
            $truncate_factor = $args['vertical'] ? '_4-4' : '_3-3';

            // Sources
            $urls = array_merge(
              explode( "\n", get_post_meta( $post_id, 'fictioneer_recommendation_urls', true ) ),
              explode( "\n", get_post_meta( $post_id, 'fictioneer_recommendation_support', true ) )
            );

            // Sanitize
            $urls = array_map( 'wp_strip_all_tags', $urls );

            // Remove empty nodes
            $urls = array_filter( $urls );

            // Abort if no links found
            if ( empty( $urls ) ) {
              continue;
            }

            // Extract first link
            $url = $urls[0];
            $tuple = explode( '|', $url );
            $tuple = array_map( 'trim', $tuple );

            // Card attributes
            $attributes = [];

            if ( $args['aspect_ratio'] ) {
              $attributes['style'] = '--card-image-aspect-ratio: ' . $args['aspect_ratio'];
            }

            $attributes = apply_filters( 'fictioneer_filter_card_attributes', $attributes, $post, 'shortcode-latest-recommendations' );

            $card_attributes = '';

            foreach ( $attributes as $key => $value ) {
              $card_attributes .= esc_attr( $key ) . '="' . esc_attr( $value ) . '" ';
            }
          ?>

          <li class="post-<?php echo $post_id; ?> card _small _recommendation _no-footer <?php echo implode( ' ', $card_classes ); ?>" <?php echo $card_attributes; ?>>
            <div class="card__body polygon">

              <div class="card__main <?php echo $grid_or_vertical; ?> _small">

                <?php
                  do_action( 'fictioneer_shortcode_latest_recommendations_card_body', $post, $args );

                  if ( $args['thumbnail'] ) {
                    fictioneer_render_thumbnail(
                      array(
                        'post_id' => $post_id,
                        'title' => $title,
                        'classes' => 'card__image cell-img',
                        'permalink' => get_permalink(),
                        'lightbox' => $args['lightbox'],
                        'vertical' => $args['vertical'],
                        'seamless' => $args['seamless'],
                        'aspect_ratio' => $args['aspect_ratio']
                      )
                    );
                  }
                ?>

                <h3 class="card__title _small cell-title"><a href="<?php the_permalink(); ?>" class="truncate _1-1"><?php echo $title; ?></a></h3>

                <div class="card__content _small cell-meta text-overflow-ellipsis">
                  <span class="card__by-author"><?php
                    printf(
                      _x( 'by %s on', 'Small card: by {Author} on.', 'fictioneer' ),
                      '<span class="author">' . get_post_meta( $post_id, 'fictioneer_recommendation_author', true ) . '</span>'
                    );
                  ?></span>
                  <a href="<?php echo esc_url( $tuple[1] ); ?>" rel="noopener" target="_blank" class="bold-link"><?php
                    echo $tuple[0];
                  ?></a>
                </div>

                <div class="card__content _small cell-desc">
                  <div class="truncate <?php echo $truncate_factor; ?>"><?php
                    if ( ! empty( $one_sentence ) ) {
                      echo wp_strip_all_tags( $one_sentence, true );
                    } else {
                      echo fictioneer_first_paragraph_as_excerpt( get_the_content() );
                    }
                  ?></div>
                </div>

                <?php if ( $show_terms ) : ?>
                  <div class="card__tag-list _small _scrolling cell-tax">
                    <div class="card__h-scroll <?php echo $args['terms'] === 'pills' ? '_pills' : ''; ?>">
                      <?php
                        if ( $fandoms || $characters || $genres || $tags ) {
                          $variant = $args['terms'] === 'pills' ? '_pill' : '_inline';

                          $terms = array_merge(
                            $fandoms ? fictioneer_get_term_nodes( $fandoms, "{$variant} _fandom" ) : [],
                            $genres ? fictioneer_get_term_nodes( $genres, "{$variant} _genre" ) : [],
                            $tags ? fictioneer_get_term_nodes( $tags, "{$variant} _tag" ) : [],
                            $characters ? fictioneer_get_term_nodes( $characters, "{$variant} _character" ) : []
                          );

                          $terms = apply_filters(
                            'fictioneer_filter_shortcode_latest_recommendations_terms',
                            $terms, $post, $args, null
                          );

                          // Implode with separator
                          echo implode(
                            fictioneer_get_bullet_separator( 'latest-recommendations', $args['terms'] === 'pills' ),
                            array_slice( $terms, 0, $args['max_terms'] )
                          );
                        } else {
                          ?><span class="card__no-taxonomies"><?php _e( 'No taxonomies specified yet.', 'fictioneer' ); ?></span><?php
                        }
                      ?>
                    </div>
                  </div>
                <?php endif; ?>

              </div>

            </div>
          </li>

        <?php endwhile; ?>
      </ul>

    <?php else : ?>

      <div class="no-results"><?php _e( 'Nothing to show.', 'fictioneer' ); ?></div>

    <?php endif; wp_reset_postdata(); ?>

  <?php if ( $splide ) { echo '</div>'; } ?>
</section>