<?php

/**
 * A simple shortcode that just renders a widget.
 *
 * @param string $content
 *
 * @return string
 */
function siteorigin_widget_shortcode( $attr, $content = '' ) {
	$attr = shortcode_atts( array(
		'class' => false,
		'id' => '',
	), $attr, 'panels_widget' );

	$attr['class'] = html_entity_decode( $attr['class'] );

	global $wp_widget_factory;

	if ( ! empty( $attr['class'] ) && isset( $wp_widget_factory->widgets[ $attr['class'] ] ) ) {
		$the_widget = $wp_widget_factory->widgets[ $attr['class'] ];

		// Parse the value of the shortcode
		preg_match( '/value="(.*?)"/', trim( $content ), $matches );

		if ( ! empty( $matches[1] ) ) {
			$data = json_decode( html_entity_decode( $matches[1] ), true );
		}

		$widget_args = ! empty( $data['args'] ) ? $data['args'] : array();
		$widget_instance = ! empty( $data['instance'] ) ? $data['instance'] : array();

		$widget_args = siteorigin_widget_shortcode_escape_widget_data( $widget_args );
		$widget_instance = siteorigin_widget_shortcode_escape_widget_data( $widget_instance );

		$widget_args = wp_parse_args( array(
			'before_widget' => '',
			'after_widget' => '',
			'before_title' => '<h3 class="widget-title">',
			'after_title' => '</h3>',
		), $widget_args );

		ob_start();
		$the_widget->widget( $widget_args, $widget_instance );

		return ob_get_clean();
	}
}

function siteorigin_widget_shortcode_escape_widget_data( $data ) {
	try {
		$escaped_data = array();
		foreach ( $data as $key => $value ) {
			if ( is_array( $value ) ) {
				$escaped_data[ $key ] = siteorigin_widget_shortcode_escape_widget_data( $value );
			} else {
				$escaped_data[ $key ] = esc_html( $value );
			}
		}
		return $escaped_data;
	} catch (Exception $e) {
		// There was an error, return empty array.
		return array();
	}
}

function siteorigin_widget_shortcode_register() {
	global $shortcode_tags;

	// Only load this as a fallback if Page Builder hasn't already registered it.
	if ( empty( $shortcode_tags['siteorigin_widget'] ) ) {
		add_shortcode( 'siteorigin_widget', 'siteorigin_widget_shortcode' );
	}
}
add_action( 'plugins_loaded', 'siteorigin_widget_shortcode_register', 15 );

/**
 * Tell Page Builder we'll be using the custom siteorigin_widget shortcode
 *
 * @return string
 */
function siteorigin_widget_shortcode_panels_cache_shortcode( $shortcode, $widget ) {
	if ( is_a( $widget, 'SiteOrigin_Widget' ) ) {
		$shortcode = 'siteorigin_widget';
	}

	return $shortcode;
}

add_filter( 'siteorigin_panels_cache_shortcode', 'siteorigin_widget_shortcode_panels_cache_shortcode', 10, 2 );