<?php
/**
 * Helper methods.
 *
 * @package Orderable/Classes
 */

defined( 'ABSPATH' ) || exit;

/**
 * Helpers class.
 */
class Orderable_Helpers {
	/**
	 * Get term ID by slug.
	 *
	 * @param string $slug
	 * @param string $taxonomy
	 *
	 * @return int|bool
	 */
	public static function get_term_id_by_slug( $slug, $taxonomy = 'product_cat' ) {
		global $wpdb;

		$results = $wpdb->get_var( $wpdb->prepare(
			"SELECT DISTINCT t.term_id
			FROM wp_term_taxonomy AS tt
			INNER JOIN wp_terms AS t ON tt.term_id = t.term_id
			WHERE t.slug = %s
			AND tt.taxonomy = %s",
			$slug,
			$taxonomy
		) );

		return $results ? absint( $results ) : false;
	}

	/**
	 * Load classes.
	 *
	 * @param array  $classes Key = filename / Value = Class name.
	 * @param string $module  Module folder name.
	 */
	public static function load_classes( $classes, $module, $root = ORDERABLE_MODULES_PATH ) {
		foreach ( $classes as $file_name => $class_name ) {
			$path = $root . $module . '/class-' . $file_name . '.php';

			if ( ! file_exists( $path ) ) {
				continue;
			}

			require_once $path;

			if ( ! method_exists( $class_name, 'run' ) ) {
				continue;
			}

			$class_name::run();
		}
	}

	/**
	 * Get pro button.
	 *
	 * @param string $campaign
	 * @param string $text
	 * @param bool   $lock_icon
	 *
	 * @return string
	 */
	public static function get_pro_button( $campaign = '', $text = '', $lock_icon = true ) {
		$text      = empty( $text ) ? __( 'Available in Pro', 'orderable' ) : $text;
		$campaign  = ! empty( $campaign ) ? sprintf( '&utm_campaign=%s', $campaign ) : '';
		$lock_icon = $lock_icon ? '<span class="dashicons dashicons-lock"></span>' : '';

		return sprintf( '<a href="%s" class="orderable-admin-button orderable-admin-button--pro" target="_blank">%s %s</a>', esc_url( 'https://orderable.com/?utm_source=Orderable&utm_medium=Plugin' . $campaign ), $lock_icon, $text );
	}

	/**
	 * Prepare post type labels.
	 *
	 * @param array $labels
	 *
	 * @return array|bool
	 */
	public static function prepare_post_type_labels( $labels = array() ) {
		if ( empty( $labels ) ) {
			return false;
		}

		return array(
			'name'                  => $labels['plural'],
			'singular_name'         => $labels['singular'],
			'menu_name'             => $labels['plural'],
			'name_admin_bar'        => $labels['singular'],
			'add_new'               => __( 'Add New', 'orderable' ),
			'add_new_item'          => sprintf( __( 'Add New %s', 'orderable' ), $labels['singular'] ),
			'new_item'              => sprintf( __( 'New %s', 'orderable' ), $labels['singular'] ),
			'edit_item'             => sprintf( __( 'Edit %s', 'orderable' ), $labels['singular'] ),
			'view_item'             => sprintf( __( 'View %s', 'orderable' ), $labels['singular'] ),
			'all_items'             => $labels['plural'],
			'search_items'          => sprintf( __( 'Search %s', 'orderable' ), $labels['plural'] ),
			'parent_item_colon'     => sprintf( __( 'Parent %s:', 'orderable' ), $labels['plural'] ),
			'not_found'             => sprintf( __( 'No %s found.', 'orderable' ), strtolower( $labels['plural'] ) ),
			'not_found_in_trash'    => sprintf( __( 'No %s found in trash.', 'orderable' ), strtolower( $labels['plural'] ) ),
			'featured_image'        => sprintf( _x( '%s Featured Image', 'Overrides the “Featured Image” phrase for this post type. Added in 4.3', 'orderable' ), $labels['singular'] ),
			'set_featured_image'    => _x( 'Set featured image', 'Overrides the “Set featured image” phrase for this post type. Added in 4.3', 'orderable' ),
			'remove_featured_image' => _x( 'Remove featured image', 'Overrides the “Remove featured image” phrase for this post type. Added in 4.3', 'orderable' ),
			'use_featured_image'    => _x( 'Use as featured image', 'Overrides the “Use as featured image” phrase for this post type. Added in 4.3', 'orderable' ),
			'archives'              => sprintf( _x( '%s archives', 'The post type archive label used in nav menus. Default “Post Archives”. Added in 4.4', 'orderable' ), $labels['plural'] ),
			'insert_into_item'      => sprintf( _x( 'Insert into %s', 'Overrides the “Insert into post”/”Insert into page” phrase (used when inserting media into a post). Added in 4.4', 'orderable' ), strtolower( $labels['singular'] ) ),
			'uploaded_to_this_item' => sprintf( _x( 'Uploaded to this %s', 'Overrides the “Uploaded to this post”/”Uploaded to this page” phrase (used when viewing media attached to a post). Added in 4.4', 'orderable' ), strtolower( $labels['singular'] ) ),
			'filter_items_list'     => sprintf( _x( 'Filter %s list', 'Screen reader text for the filter links heading on the post type listing screen. Default “Filter posts list”/”Filter pages list”. Added in 4.4', 'orderable' ), strtolower( $labels['plural'] ) ),
			'items_list_navigation' => sprintf( _x( '%s list navigation', 'Screen reader text for the pagination heading on the post type listing screen. Default “Posts list navigation”/”Pages list navigation”. Added in 4.4', 'orderable' ), $labels['plural'] ),
			'items_list'            => sprintf( _x( '%s list', 'Screen reader text for the items list heading on the post type listing screen. Default “Posts list”/”Pages list”. Added in 4.4', 'orderable' ), $labels['plural'] ),
		);
	}

	/**
	 * Outputs the pro feature modal.
	 */
	public static function orderable_pro_modal() {
		require_once ORDERABLE_TEMPLATES_PATH . 'admin/orderable-pro-modal.php';
	}

	/**
	 * Custom kses method so we can also modify CSS properties allowed.
	 *
	 * @param string $content
	 * @param string $context
	 *
	 * @return string
	 */
	public static function kses( $content,  $context = ''  ) {
		if ( empty( $content ) ) {
			return $content;
		}

		// Modify allowed CSS.
		add_filter( 'safe_style_css', array( __CLASS__, 'safe_css' ) );

		$content = wp_kses( $content, self::kses_allowed_html( $context ) );

		// Disable CSS modification.
		remove_filter( 'safe_style_css', array( __CLASS__, 'safe_css' ) );

		return $content;
	}

	/**
	 * Sanitise output and allow form elements.
	 *
	 * @param string $context
	 *
	 * @return array
	 */
	public static function kses_allowed_html( $context = '' ) {
		$allowed_html = wp_kses_allowed_html( 'post' );

		if ( 'form' === $context ) {
			$allowed_attributes = array(
				'name'     => array(),
				'class'    => array(),
				'value'    => array(),
				'type'     => array(),
				'selected' => array(),
			);

			$allowed_html['span']   = $allowed_attributes;
			$allowed_html['select'] = $allowed_attributes;
			$allowed_html['option'] = $allowed_attributes;
			$allowed_html['input']  = $allowed_attributes;
		}

		return $allowed_html;
	}

	/**
	 * Modify safe CSS values.
	 *
	 * @param array $safe_css
	 *
	 * @return array
	 */
	public static function safe_css( $safe_css = array() ) {
		$safe_css[] = 'display';

		return $safe_css;
	}

	/**
	 * Delete Orderable transients.
	 */
	public static function delete_orderable_transients() {
		global $wpdb;

		$wpdb->query("
			DELETE FROM $wpdb->options
			WHERE option_name LIKE ('%%\_transient\_timeout\_orderable\_%%')
			OR option_name LIKE ('%%\_transient\_orderable\_%%')
		");
	}

	/**
	 * Has notices?
	 *
	 * @return bool
	 */
	public static function has_notices() {
		return ! empty( WC()->session->get( 'wc_notices', array() ) );
	}
}