<?php

/**
 * Action for displaying the widget preview.
 */
function siteorigin_widget_preview_widget_action() {
	siteorigin_verify_request_permissions();

	if ( empty( $_POST['class'] ) ) {
		wp_die( __( 'Invalid widget.', 'so-widgets-bundle' ), 400 );
	}

	// Get the widget from the widget factory
	global $wp_widget_factory;
	$widget_class = str_replace( '\\\\', '\\', $_POST['class'] );

	$widget = ! empty( $wp_widget_factory->widgets[ $widget_class ] ) ? $wp_widget_factory->widgets[ $widget_class ] : false;

	if ( ! is_a( $widget, 'SiteOrigin_Widget' ) ) {
		wp_die( __( 'Invalid post.', 'so-widgets-bundle' ), 400 );
	}

	$instance = json_decode( stripslashes_deep( $_POST['data'] ), true );
	/* @var $widget SiteOrigin_Widget */
	$instance = $widget->update( $instance, $instance );
	$instance['is_preview'] = true;

	// The theme stylesheet will change how the button looks
	wp_enqueue_style( 'theme-css', get_stylesheet_uri(), array(), rand( 0, 65536 ) );
	wp_enqueue_style( 'so-widget-preview', siteorigin_widgets_url( 'base/css/preview.css' ), array(), rand( 0, 65536 ) );

	$sowb = SiteOrigin_Widgets_Bundle::single();
	$sowb->register_general_scripts();

	do_action( 'siteorigin_widgets_render_preview_' . $widget->id_base, $widget );

	ob_start();
	$widget->widget(
		array(
			'before_widget' => '',
			'after_widget' => '',
			'before_title' => '<h3 class="widget-title">',
			'after_title' => '</h3>',
		),
		$instance
	);
	$widget_html = ob_get_clean();

	// Print all the scripts and styles
	?>
	<html>
	<head>
		<title>
			<?php esc_html_e( 'Widget Preview', 'so-widgets-bundle' ); ?>
		</title>
		<?php
		wp_print_scripts();
		wp_print_styles();
		?>
	</head>
	<body>
		<?php // A lot of themes use entry-content as their main content wrapper. ?>
		<div class="entry-content">
			<?php echo $widget_html; ?>
		</div>
	</body>
	</html>

	<?php
	wp_die();
}
add_action( 'wp_ajax_so_widgets_preview', 'siteorigin_widget_preview_widget_action' );

/**
 * Check if the current user can edit posts of a specific post type.
 *
 * This function checks if the current user has the capability to edit posts
 * of the specified post type. It retrieves the post type object if necessary
 * and then checks the user's capabilities.
 *
 * @param string|object $post_type The post type name or object.
 *
 * @return bool True if the user can edit posts of the specified post type,
 * false otherwise.
 */
function siteorigin_widget_user_can_edit_post_type( $post_type ) {
	if ( ! is_object( $post_type ) ) {
		$post_type = get_post_type_object( $post_type );
	}

	return $post_type && current_user_can( $post_type->cap->edit_posts );
}

class SiteOrigin_Widgets_Bundle_Actions {
	/**
	 * Action to handle searching posts.
	 */
	public static function search_posts() {
		siteorigin_verify_request_permissions();

		global $wpdb;
		$query = '';
		$wpml_query = '';

		// Get all public post types, besides attachments.
		$post_types = (array) get_post_types(
			array(
				'public' => true,
			)
		);

		if ( ! empty( $_REQUEST['postTypes'] ) ) {
			$post_types = array_intersect( explode( ',', sanitize_text_field( $_REQUEST['postTypes'] ) ), $post_types );
		} else {
			unset( $post_types['attachment'] );
		}

		// If WPML is installed, only include posts from the currently active language.
		if ( defined( 'ICL_LANGUAGE_CODE' ) && ! empty( $_REQUEST['language'] ) ) {
			$query .= $wpdb->prepare( " AND {$wpdb->prefix}icl_translations.language_code = %s ", sanitize_text_field( $_REQUEST['language'] ) );
			$wpml_query .= " INNER JOIN {$wpdb->prefix}icl_translations ON ($wpdb->posts.ID = {$wpdb->prefix}icl_translations.element_id) ";
		}

		if ( ! empty( $_GET['query'] ) ) {
			$search_query = '%' . $wpdb->esc_like( sanitize_text_field( $_GET['query'] ) ) . '%';
			$query .= $wpdb->prepare( ' AND post_title LIKE %s ', $search_query );
		}

		$post_types = apply_filters( 'siteorigin_widgets_search_posts_post_types', $post_types );

		// Ensure the user can edit this post type.
		foreach ( $post_types as $key => $post_type ) {
			if ( ! siteorigin_widget_user_can_edit_post_type( $post_type ) ) {
				unset( $post_types[ $key ] );
			}
		}
		$post_types = "'" . implode( "', '", array_map( 'esc_sql', $post_types ) ) . "'";

		$ordered_by = self::get_search_posts_order_by();

		$results = $wpdb->get_results(
			"
			SELECT ID AS 'value', post_title AS label, post_type AS 'type'
			FROM {$wpdb->posts}
			{$wpml_query}
			WHERE
				post_type IN ( {$post_types} ) AND post_status = 'publish' {$query}
			ORDER BY {$ordered_by}
			LIMIT 20
		",
			ARRAY_A
		);

		if ( empty( $results ) ) {
			wp_send_json( array() );
		}

		// Filter results to ensure the user can read the post.
		$results = array_filter(
			$results,
			function ( $post ) {

				return current_user_can( 'read_post', $post['value'] );
			}
		);

		wp_send_json( apply_filters( 'siteorigin_widgets_search_posts_results', $results ) );
	}

	/**
	 * Get the ORDER BY clause for post searches.
	 *
	 * @return string
	 */
	private static function get_search_posts_order_by() {
		return esc_sql( apply_filters( 'siteorigin_widgets_search_posts_order_by', 'post_modified DESC' ) );
	}
}

/**
 * Action to handle searching posts.
 */
function siteorigin_widget_action_search_posts() {
	SiteOrigin_Widgets_Bundle_Actions::search_posts();
}
add_action( 'wp_ajax_so_widgets_search_posts', 'siteorigin_widget_action_search_posts' );

$siteorigin_widget_taxonomies = array();
/**
 * Get the capability required for a taxonomy term.
 *
 * Determines the lowest available capability needed for the specified taxonomy
 * type. Caches the result in the $siteorigin_widget_taxonomies global array.
 *
 * @param string $type The taxonomy type to get the capability for.
 *
 * @return string|false The capability required for the taxonomy term, or false if not available.
 */
function siteorigin_widget_get_taxonomy_capability( $type ) {
	global $siteorigin_widget_taxonomies;

	if ( ! empty( $siteorigin_widget_taxonomies[ $type ] ) ) {
		return $siteorigin_widget_taxonomies[ $type ];
	}

	// Let's identify the post type for this taxonomy.
	$taxonomy = get_taxonomy( $type );

	if (
		empty( $taxonomy ) ||
		! is_object( $taxonomy->cap )
	) {
		return false;
	}

	// Get the lowest capability possible.
	$capability = $taxonomy->cap->assign_terms
	?? $taxonomy->cap->edit_terms
	?? $taxonomy->cap->manage_terms
	?? false;

	$siteorigin_widget_taxonomies[ $type ] = $capability;

	return $siteorigin_widget_taxonomies[ $type ];
}

/**
 * Action to handle searching taxonomy terms.
 */
function siteorigin_widget_action_search_terms() {
	siteorigin_verify_request_permissions();

	global $wpdb;
	$term = ! empty( $_GET['term'] ) ? sanitize_text_field( stripslashes( $_GET['term'] ) ) : '';
	$term = trim( $term, '%' );

	$query = $wpdb->prepare(
		"
		SELECT terms.term_id, terms.slug AS 'value', terms.name AS 'label', termtaxonomy.taxonomy AS 'type'
		FROM $wpdb->terms AS terms
		JOIN $wpdb->term_taxonomy AS termtaxonomy ON terms.term_id = termtaxonomy.term_id
		WHERE
			terms.name LIKE '%s'
		LIMIT 20
	",
		'%' . $wpdb->esc_like( $term ) . '%'
	);

	$results = array();

	$query_results = $wpdb->get_results( $query );
	if ( ! empty( $query_results ) ) {
		foreach ( $query_results as $result ) {
			if ( current_user_can(
				siteorigin_widget_get_taxonomy_capability( $result->type )
			) ) {
				$results[] = array(
					'value' => $result->type . ':' . $result->value,
					'label' => $result->label,
					'type' => $result->type,
				);
			}
		}
	}

	wp_send_json( apply_filters( 'siteorigin_widgets_search_terms_results', $results ) );
}
add_action( 'wp_ajax_so_widgets_search_terms', 'siteorigin_widget_action_search_terms' );

/**
 * Action for getting the number of posts returned by a query.
 */
function siteorigin_widget_get_posts_count_action() {
	siteorigin_verify_request_permissions();

	$query = stripslashes( $_POST['query'] );

	wp_send_json( array( 'posts_count' => siteorigin_widget_post_selector_count_posts( $query ) ) );
}

add_action( 'wp_ajax_sow_get_posts_count', 'siteorigin_widget_get_posts_count_action' );

function siteorigin_widget_remote_image_search() {
	siteorigin_verify_request_permissions( 'upload_files', '_sononce', 'so-image' );

	if ( empty( $_GET['q'] ) ) {
		wp_die( __( 'Invalid request.', 'so-widgets-bundle' ), 400 );
	}

	// Send the query to stock search server
	$url = add_query_arg(
		array(
			'q' => $_GET[ 'q' ],
			'page' => ! empty( $_GET[ 'page' ] ) ? (int) $_GET[ 'page' ] : 1,
		),
		'http://stock.siteorigin.com/wp-admin/admin-ajax.php?action=image_search'
	);

	$result = wp_remote_get(
		$url,
		array(
			'timeout' => 20,
		)
	);

	if ( ! is_wp_error( $result ) ) {
		$result = json_decode( $result['body'], true );

		if ( ! empty( $result['items'] ) ) {
			foreach ( $result['items'] as & $r ) {
				if ( ! empty( $r['full_url'] ) ) {
					$r['import_signature'] = md5( $r['full_url'] . '::' . NONCE_SALT );
				}
			}
		}
		wp_send_json( $result );
	} else {
		$result = array(
			'error' => true,
			'message' => $result->get_error_message(),
		);
		wp_send_json_error( $result );
	}
}
add_action( 'wp_ajax_so_widgets_image_search', 'siteorigin_widget_remote_image_search' );

function siteorigin_widget_image_import() {
	siteorigin_verify_request_permissions( 'upload_files', '_sononce', 'so-image' );

	if (
		empty( $_GET['import_signature'] ) ||
		empty( $_GET['full_url'] ) ||
		md5( $_GET['full_url'] . '::' . NONCE_SALT ) !== $_GET['import_signature']
	) {
		$result = array(
			'error' => true,
			'message' => __( 'Signature error', 'so-widgets-bundle' ),
		);
	} else {
		// Fetch the image
		$src = media_sideload_image( $_GET['full_url'], $_GET['post_id'], null, 'src' );

		if ( is_wp_error( $src ) ) {
			$result = array(
				'error' => true,
				'message' => $src->get_error_code(),
			);
		} else {
			global $wpdb;
			$attachment = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE guid='%s';", $src ) );

			if ( ! empty( $attachment ) ) {
				$thumb_src = wp_get_attachment_image_src( $attachment[0], 'thumbnail' );
				$result = array(
					'error' => false,
					'attachment_id' => $attachment[0],
					'thumb' => $thumb_src[0],
				);
			} else {
				$result = array(
					'error' => true,
					'message' => __( 'Attachment error', 'so-widgets-bundle' ),
				);
			}
		}
	}

	// Return the result
	wp_send_json( $result );
}
add_action( 'wp_ajax_so_widgets_image_import', 'siteorigin_widget_image_import' );

/**
 * Action to handle a user dismissing a teaser notice.
 */
function siteorigin_widgets_dismiss_widget_action() {
	siteorigin_verify_request_permissions( 'edit_posts', '_wpnonce', 'dismiss-widget-teaser' );

	if ( empty( $_GET[ 'widget' ] ) ) {
		wp_die( __( 'Invalid request.', 'so-widgets-bundle' ), 400 );
	}

	$dismissed = get_user_meta( get_current_user_id(), 'teasers_dismissed', true );

	if ( empty( $dismissed ) ) {
		$dismissed = array();
	}

	$dismissed[ $_GET[ 'widget' ] ] = true;

	update_user_meta( get_current_user_id(), 'teasers_dismissed', $dismissed );

	wp_die();
}
add_action( 'wp_ajax_so_dismiss_widget_teaser', 'siteorigin_widgets_dismiss_widget_action' );
