RSS Aggregator by Feedzy Shortcode

function feedzy_rss( $atts, $content = '' ) {
		$sc                   = $this->get_short_code_attributes( $atts );
		$remove_default_style = isset( $sc['disable_default_style'] ) && in_array( (string) $sc['disable_default_style'], array( '1', 'y', 'yes' ), true );
		if ( ! $remove_default_style ) {
			$settings = apply_filters( 'feedzy_get_settings', array() );
			if ( ! empty( $settings['general']['disable-default-style'] ) ) {
				$remove_default_style = true;
			}
		}
		// Do not enqueue style if the default style settings are enabled.
		if ( ! $remove_default_style ) {
			wp_print_styles( $this->plugin_name );
			// Enqueue style using `wp_enqueue_style` in case `wp_print_styles` not working.
			if ( ! wp_style_is( $this->plugin_name, 'done' ) ) {
				wp_enqueue_style( $this->plugin_name );
			}
			$sc['disable_default_style'] = 'no';
		} else {
			$sc['disable_default_style'] = 'yes';
		}

		$feed_url = $this->normalize_urls( $sc['feeds'] );
		if ( empty( $feed_url ) ) {
			return $content;
		}
		$cache = $sc['refresh'];

		// Disregard the pseudo-shortcode coming from Gutenberg as a lazy one.
		if ( ( true === $sc['lazy'] || 'yes' === $sc['lazy'] ) && ! isset( $sc['gutenberg'] ) ) {
			$attributes = '';
			foreach ( $sc as $key => $val ) {
				// ignore the feedData, its not required.
				if ( 'feedData' === $key ) {
					continue;
				}
				if ( is_array( $val ) ) {
					$val = implode( ',', $val );
				}
				$attributes .= 'data-' . esc_attr( $key ) . '="' . esc_attr( $val ) . '"';
			}
			$lazyload_cache_key = md5( sprintf( 'feedzy-lazy-%s', ( is_array( $feed_url ) ? implode( ',', $feed_url ) : $feed_url ) ) );
			$content            = get_transient( $lazyload_cache_key );

			// the first time the shortcode is being called it will not have any content.
			if ( empty( $content ) ) {
				$content = apply_filters( 'feedzy_lazyload_loading_msg', __( 'Loading', 'feedzy-rss-feeds' ) . '...', $feed_url );
			} else {
				$attributes .= 'data-has_valid_cache="true"';
			}
			$class = array_filter( apply_filters( 'feedzy_add_classes_block', array( $sc['classname'], 'feedzy-' . md5( is_array( $feed_url ) ? implode( ',', $feed_url ) : $feed_url ) ), $sc, null, $feed_url ) );
			$html  = "<div class='feedzy-lazy' $attributes>";
			$html .= "$content</div>";

			wp_register_script( $this->plugin_name . '-lazy', FEEDZY_ABSURL . 'js/feedzy-lazy.js', array( 'jquery' ), $this->version, 'all' );
			wp_enqueue_script( $this->plugin_name . '-lazy' );
			wp_localize_script(
				$this->plugin_name . '-lazy',
				'feedzy',
				array(
					'url'        => get_rest_url( null, 'feedzy/v' . FEEDZY_REST_VERSION . '/lazy/' ),
					'rest_nonce' => wp_create_nonce( 'wp_rest' ),
					'nonce'      => wp_create_nonce( 'feedzy' ),
				)
			);
			return $html;
		}

		if ( isset( $sc['_dry_run_tags_'] ) ) {
			if ( strpos( $sc['_dry_run_tags_'], 'item_full_content' ) !== false ) {
				$sc_clone            = $sc;
				$sc_clone['__jobID'] = ''; // pro expects this but keep it empty.
				$tmp_feed_url        = apply_filters( 'feedzy_import_feed_url', $feed_url, '[#item_full_content]', $sc_clone );
				if ( ! is_wp_error( $tmp_feed_url ) ) {
					$feed_url = $tmp_feed_url;
				}
			}
		}

		$feed = $this->fetch_feed( $feed_url, $cache, $sc );
		if ( is_string( $feed ) ) {
			return $feed;
		}
		$sc      = $this->sanitize_attr( $sc, $feed_url );
		$content = $this->render_content( $sc, $feed, $feed_url, $content );

		return $content;
	}