<?php
/**
 * Basic function for plugin
 *
 * @since             1.0.0
 * @package           TInvWishlist
 */

// If this file is called directly, abort.
if ( ! defined( 'ABSPATH' ) ) {
	die;
}


if ( ! function_exists( 'tinv_get_option' ) ) {

	/**
	 * Extract options from database or default array settings.
	 *
	 * @param string $category Name category settings.
	 * @param string $option Name paremetr. If is empty string, then function return array category settings.
	 *
	 * @return mixed
	 */
	function tinv_get_option( $category, $option = '' ) {
		$prefix = TINVWL_PREFIX . '-';
		$values = get_option( $prefix . $category, array() );
		if ( empty( $values ) ) {
			$values = tinv_get_option_defaults( $category );
		}
		if ( empty( $option ) ) {
			return $values;
		} else {
			if ( array_key_exists( $option, (array) $values ) ) {
				return $values[ $option ];
			} else {
				$values = tinv_get_option_defaults( $category );
				if ( array_key_exists( $option, (array) $values ) ) {
					return $values[ $option ];
				}
			}
		}

		return null;
	}
}

if ( ! function_exists( 'tinv_get_option_admin' ) ) {

	/**
	 * Extract options from database or default array settings.
	 *
	 * @param string $category Name category settings.
	 * @param string $option Name paremetr. If is empty string, then function return array category settings.
	 *
	 * @return mixed
	 */
	function tinv_get_option_admin( $category, $option = '' ) {
		$prefix = TINVWL_PREFIX . '-';
		$values = get_option( $prefix . $category, array() );
		if ( empty( $values ) ) {
			$values = array();
		}
		if ( empty( $option ) ) {
			return $values;
		} elseif ( array_key_exists( $option, $values ) ) {
			return $values[ $option ];
		}

		return null;
	}
}

if ( ! function_exists( 'tinv_style' ) ) {

	/**
	 * Get style for custom style
	 *
	 * @param string $selector Selector style.
	 * @param string $element Attribute name.
	 *
	 * @return string
	 */
	function tinv_style( $selector = '', $element = '' ) {
		$key    = md5( $selector . '||' . $element );
		$values = get_option( TINVWL_PREFIX . '-style_options', array() );
		if ( empty( $values ) ) {
			return '';
		}
		if ( array_key_exists( $key, $values ) ) {
			return $values[ $key ];
		}

		return '';
	}
}

if ( ! function_exists( 'tinv_update_option' ) ) {

	/**
	 * Update options in database.
	 *
	 * @param string $category Name category settings.
	 * @param string $option Name paremetr. If is empty string, then function update array category settings.
	 * @param mixed $value Value option.
	 *
	 * @return boolean
	 */
	function tinv_update_option( $category, $option = '', $value = false ) {
		$prefix = TINVWL_PREFIX . '-';
		if ( empty( $option ) ) {
			if ( is_array( $value ) ) {
				update_option( $prefix . $category, $value );

				return true;
			}
		} else {
			$values = get_option( $prefix . $category, array() );

			$values[ $option ] = $value;
			update_option( $prefix . $category, $values );

			return true;
		}

		return false;
	}
}

/**
 * Rename class
 */
class TInvWLRename {

	/**
	 * Rename "wishlist" word across the plugin.
	 */
	function rename() {
		$this->rename        = tinv_get_option( 'rename', 'rename' );
		$this->rename_single = tinv_get_option( 'rename', 'rename_single' );
		$this->rename_plural = tinv_get_option( 'rename', 'rename_plural' );

		if ( $this->rename && $this->rename_single ) {
			add_filter( 'gettext', array( $this, 'translations' ), 999, 3 );
			add_filter( 'ngettext', array( $this, 'translations_n' ), 999, 5 );
		}
	}


	function translations_n( $translation, $single, $plural, $number, $domain ) {
		return $this->translation_update( $translation, $domain );
	}

	function translations( $translation, $text, $domain ) {
		return $this->translation_update( $translation, $domain );
	}

	private function translation_update( $text, $domain ) {
		if ( 'ti-woocommerce-wishlist' === $domain ) {

			if ( strpos( $text, '{wishlist_title}' ) !== false ) {
				// If $text contains "{wishlist_title}", skip the replacement
				return $text;
			}

			$translations = [
				'wishlist' => [
					$this->rename_single,
					$this->rename_plural ? $this->rename_plural : $this->rename_single . 's'
				]
			];

			$text = preg_replace_callback( '~\b[a-z]+(?:(?<=(s)))?~i', function ( $m ) use ( $translations ) {
				$lower = strtolower( $m[0] );
				$rep   = $m[0];
				if ( isset( $translations[ $lower ] ) ) {
					$rep = is_array( $translations[ $lower ] ) ? $translations[ $lower ][0] : $translations[ $lower ];
				} elseif ( isset( $m[1] ) ) {
					$sing = substr( $lower, 0, - 1 );
					if ( isset( $translations[ $sing ] ) ) {
						$rep = is_array( $translations[ $sing ] ) ? $translations[ $sing ][1] : $translations[ $sing ] . 's';
					}
				} else {
					return $rep;
				}

				if ( $m[0] == $lower ) {
					return $rep;
				} elseif ( $m[0] == strtoupper( $lower ) ) {
					return strtoupper( $rep );
				} elseif ( $m[0] == ucfirst( $lower ) ) {
					return ucfirst( $rep );
				}

				return $rep;
			}, $text );

		}

		return $text;
	}
}

$tinvwl_rename = new TInvWLRename();
$tinvwl_rename->rename();

if ( ! function_exists( 'tinv_wishlist_template' ) ) {

	/**
	 * The function overwrites the method output templates woocommerce
	 *
	 * @param string $template_name Name file template.
	 * @param array $args Array variable in template.
	 * @param string $template_path Customization path.
	 */
	function tinv_wishlist_template( $template_name, $args = array(), $template_path = '' ) {
		if ( function_exists( 'wc_get_template' ) ) {
			wc_get_template( $template_name, $args, $template_path );
		} else {
			woocommerce_get_template( $template_name, $args, $template_path );
		}
	}
}

if ( ! function_exists( 'tinv_wishlist_locate_template' ) ) {

	/**
	 * Overwrites path for email and other template
	 *
	 * @param string $template_name Requered Template file.
	 * @param string $template_path Template path.
	 * @param string $default_path Template default path.
	 *
	 * @return mixed
	 */
	function tinv_wishlist_locate_template( $template_name, $template_path = '', $default_path = '' ) {
		$prefix = 'ti-';

		if ( substr( basename( $template_name ), 0, strlen( $prefix ) ) !== $prefix ) {
			return;
		}

		if ( ! $template_path ) {
			$template_path = WC()->template_path();
		}

		if ( ! $default_path ) {
			$default_path = TINVWL_PATH . DIRECTORY_SEPARATOR . 'templates' . DIRECTORY_SEPARATOR;
		}

		// Look within passed path within the theme - this is priority.
		$template = locate_template( array(
			trailingslashit( $template_path ) . $template_name,
			$template_name,
		) );

		// Get default template.
		if ( ! $template && file_exists( $default_path . $template_name ) ) {
			$template = $default_path . $template_name;
		}

		// Return what we found.
		return apply_filters( 'tinvwl_locate_template', $template, $template_name, $template_path );
	}
} // End if().

if ( ! function_exists( 'tinv_wishlist_template_html' ) ) {

	/**
	 * The function overwrites the method return templates woocommerce
	 *
	 * @param string $template_name Name file template.
	 * @param array $args Array variable in template.
	 * @param string $template_path Customization path.
	 *
	 * @return string
	 */
	function tinv_wishlist_template_html( $template_name, $args = array(), $template_path = '' ) {
		ob_start();
		tinv_wishlist_template( $template_name, $args, $template_path );

		return ob_get_clean();
	}
}

if ( ! function_exists( 'tinv_wishlist_get_item_data' ) ) {

	/**
	 * Extract meta attributes for product
	 *
	 * @param object $product Object selected product.
	 * @param array $wl_product Wishlist selected product.
	 * @param boolean $flat Return text or template.
	 *
	 * @return string
	 */
	function tinv_wishlist_get_item_data( $product, $wl_product = array(), $flat = false ) {
		$item_data      = array();
		$variation_id   = $product->is_type( 'variation' ) ? $product->get_id() : 0;
		$variation_data = $product->is_type( 'variation' ) ? wc_get_product_variation_attributes( $product->get_id() ) : array();
		if ( ! empty( $variation_id ) && is_array( $variation_data ) && is_array( $wl_product ) ) {
			foreach ( $variation_data as $name => $value ) {
				if ( '' === $value ) {
					// Could be any value that saved to a custom meta.
					if ( array_key_exists( 'meta', $wl_product ) && array_key_exists( $name, $wl_product['meta'] ) ) {
						$value = $wl_product['meta'][ $name ];
					} else {
						continue;
					}
				}

				$taxonomy = wc_attribute_taxonomy_name( str_replace( 'attribute_pa_', '', urldecode( $name ) ) );

				// If this is a term slug, get the term's nice name.
				if ( taxonomy_exists( $taxonomy ) ) {
					$term = get_term_by( 'slug', $value, $taxonomy ); // @codingStandardsIgnoreLine WordPress.VIP.RestrictedFunctions.get_term_by
					if ( ! is_wp_error( $term ) && $term && $term->name ) {
						$value = $term->name;
					}
					$label = wc_attribute_label( $taxonomy );

					// If this is a custom option slug, get the options name.
				} else {
					$value              = apply_filters( 'woocommerce_variation_option_name', $value );
					$product_attributes = $product->get_attributes();
					$_name              = str_replace( 'attribute_', '', $name );
					if ( isset( $product_attributes[ $_name ] ) ) {
						$label = wc_attribute_label( $_name, $product );
					} else {
						$label = $name;
					}
				}
				if ( '' === $value || wc_is_attribute_in_product_name( $value, is_callable( array(
						$product,
						'get_name'
					) ) ? $product->get_name() : $product->get_title() ) ) {
					continue;
				}
				$item_data[] = array(
					'key'   => $label,
					'value' => $value,
				);
			} // End foreach().
		} // End if().

		// Filter item data to allow 3rd parties to add more to the array.
		$item_data = apply_filters( 'tinvwl_wishlist_get_item_data', $item_data, $product );

		// Format item data ready to display.
		foreach ( $item_data as $key => $data ) {
			// Set hidden to true to not display meta on cart.
			if ( ! empty( $data['hidden'] ) ) {
				unset( $item_data[ $key ] );
				continue;
			}
			$item_data[ $key ]['key']     = ! empty( $data['key'] ) ? $data['key'] : $data['name'];
			$item_data[ $key ]['display'] = ! empty( $data['display'] ) ? $data['display'] : $data['value'];
		}

		// Output flat or in list format.
		if ( 0 < count( $item_data ) ) {
			ob_start();
			if ( $flat ) {
				foreach ( $item_data as $data ) {
					echo esc_html( $data['key'] ) . ': ' . wp_kses_post( $data['display'] ) . '<br>';
				}
			} else {
				tinv_wishlist_template( 'ti-wishlist-item-data.php', array( 'item_data' => $item_data ) );
			}

			return ob_get_clean();
		}

		return '';
	}
} // End if().

if ( ! function_exists( 'tinv_wishlist_get' ) ) {

	/**
	 * Return Wishlist by id or share key
	 *
	 * @param mixed $id Integer wishlist ID, or Share Key wishlist.
	 * @param boolean $toend Switches to the extract the default or guest wishlist.
	 *
	 * @return array
	 */
	function tinv_wishlist_get( $id = '', $toend = true ) {
		$wl       = new TInvWL_Wishlist();
		$wishlist = null;
		if ( empty( $id ) ) {
			$id = get_query_var( 'tinvwlID', null );
		}

		if ( ! empty( $id ) ) {
			if ( is_integer( $id ) ) {
				$wishlist = $wl->get_by_id( $id );
			}
			if ( empty( $wishlist ) ) {
				$wishlist = $wl->get_by_share_key( $id );
			}

			if ( is_array( $wishlist ) ) {
				$wishlist['is_owner'] = false;
				if ( is_user_logged_in() ) {
					$wishlist['is_owner'] = get_current_user_id() == $wishlist['author']; // WPCS: loose comparison ok.
				} else {
					$wishlist['is_owner'] = $wl->get_sharekey() === $wishlist['share_key']; // WPCS: loose comparison ok.
				}
			}
		} elseif ( is_user_logged_in() && $toend ) {
			$wishlist = $wl->add_user_default();

			$wishlist['is_owner'] = true;
		} elseif ( $toend ) {
			$wishlist = $wl->get_by_sharekey_default();
			if ( ! empty( $wishlist ) ) {
				$wishlist             = array_shift( $wishlist );
				$wishlist['is_owner'] = $wl->get_sharekey() === $wishlist['share_key'];
			}
		}

		return $wishlist;
	}
} // End if().

if ( ! function_exists( 'tinv_url_wishlist_default' ) ) {

	/**
	 * Return the default wishlist url
	 *
	 * @return string
	 */
	function tinv_url_wishlist_default() {
		if ( tinv_get_option( 'general', 'my_account_endpoint' ) ) {
			return esc_url( wc_get_endpoint_url( tinv_get_option( 'general', 'my_account_endpoint_slug' ), '', wc_get_page_permalink( 'myaccount' ) ) );
		}

		$page = apply_filters( 'wpml_object_id', tinv_get_option( 'page', 'wishlist' ), 'page', true ); // @codingStandardsIgnoreLine WordPress.Variables.GlobalVariables.OverrideProhibited
		if ( empty( $page ) ) {
			return '';
		}
		$link = get_permalink( $page );

		return $link;
	}
}

if ( ! function_exists( 'tinv_url_wishlist_by_key' ) ) {

	/**
	 * Return the wishlist url by share key
	 *
	 * @param string $share_key Share Key wishlist.
	 * @param integer $paged Page.
	 *
	 * @return string
	 */
	function tinv_url_wishlist_by_key( $share_key, $paged = 1 ) {
		$paged = absint( $paged );
		$paged = 1 < $paged ? $paged : 1;
		$link  = tinv_url_wishlist_default();
		if ( empty( $link ) ) {
			return $link;
		}

		if ( 1 < $paged ) {
			$link = add_query_arg( 'wl_paged', $paged, $link );
		}

		if ( $share_key ) {
			if ( get_option( 'permalink_structure' ) ) {
				$suffix = '';
				if ( preg_match( '/([^\?]+)\?*?(.*)/i', $link, $_link ) ) {
					$link   = $_link[1];
					$suffix = $_link[2];
				}
				if ( ! preg_match( '/\/$/', $link ) ) {
					$link .= '/';
				}
				$link .= $share_key . '/' . $suffix;
			} else {
				$link = add_query_arg( 'tinvwlID', $share_key, $link );
			}
		}

		return $link;
	}
} // End if().

if ( ! function_exists( 'tinv_url_wishlist' ) ) {

	/**
	 * Return the wishlist url by id or share key
	 *
	 * @param mixed $id Integer wishlist ID, or Share Key wishlist.
	 * @param integer $paged Page.
	 * @param boolean $full Return full url or shroted url for logged in user.
	 *
	 * @return string
	 */
	function tinv_url_wishlist( $id = '', $paged = 1, $full = true ) {
		$share_key = $id;
		if ( ! ( is_string( $id ) && preg_match( '/^[A-Fa-f0-9]{6}$/', $id ) ) ) {
			$wishlist  = tinv_wishlist_get( $id, false );
			$share_key = isset( $wishlist['share_key'] ) ? $wishlist['share_key'] : '';
		}

		return tinv_url_wishlist_by_key( $share_key, $paged );
	}
}

if ( ! function_exists( 'tinv_wishlist_status' ) ) {

	/**
	 * Check status free or premium plugin and disable free
	 *
	 * @param string $transient Plugin transient name.
	 *
	 * @return string
	 * @global string $s
	 *
	 * @global string $status
	 * @global string $page
	 */
	function tinv_wishlist_status( $transient ) {
		if ( TINVWL_LOAD_FREE === $transient ) {
			TInvWL_PluginExtend::deactivate_self( TINVWL_LOAD_FREE );

			return 'plugins.php';
		}
		if ( defined( 'TINVWL_LOAD_PREMIUM' ) && TINVWL_LOAD_PREMIUM === $transient ) {
			if ( is_plugin_active( TINVWL_LOAD_FREE ) ) {
				TInvWL_PluginExtend::deactivate_self( TINVWL_LOAD_FREE );
				if ( ! function_exists( 'wp_create_nonce' ) ) {
					return 'plugins.php';
				}

				global $status, $page, $s;
				$redirect = 'plugins.php?';
				$redirect .= http_build_query( array(
					'action'        => 'activate',
					'plugin'        => $transient,
					'plugin_status' => $status,
					'paged'         => $page,
					's'             => $s,
				) );
				$redirect = esc_url_raw( add_query_arg( '_wpnonce', wp_create_nonce( 'activate-plugin_' . $transient ), $redirect ) );

				return $redirect;
			}
		}

		return false;
	}
} // End if().

if ( ! function_exists( 'tinvwl_body_classes' ) ) {

	/**
	 * Add custom class
	 *
	 * @param array $classes Current classes.
	 *
	 * @return array
	 */
	function tinvwl_body_classes( $classes ) {
		if ( tinv_get_option( 'style', 'customstyle' ) ) {
			$classes[] = 'tinvwl-theme-style';
		} else {
			$classes[] = 'tinvwl-custom-style';
		}

		return $classes;
	}

	add_filter( 'body_class', 'tinvwl_body_classes' );
}

if ( ! function_exists( 'tinvwl_shortcode_addtowishlist' ) ) {

	/**
	 * Shortcode Add To Wishlist
	 *
	 * @param array $atts Array parameter from shortcode.
	 *
	 * @return string
	 */
	function tinvwl_shortcode_addtowishlist( $atts = array() ) {
		$class = TInvWL_Public_AddToWishlist::instance();

		return $class->shortcode( $atts );
	}

	add_shortcode( 'ti_wishlists_addtowishlist', 'tinvwl_shortcode_addtowishlist' );
}

if ( ! function_exists( 'tinvwl_shortcode_view' ) ) {

	/**
	 * Shortcode view Wishlist
	 *
	 * @param array $atts Array parameter from shortcode.
	 *
	 * @return string
	 */
	function tinvwl_shortcode_view( $atts = array() ) {
		$class = TInvWL_Public_Wishlist_View::instance();

		return $class->shortcode( $atts );
	}

	add_shortcode( 'ti_wishlistsview', 'tinvwl_shortcode_view' );
}

if ( ! function_exists( 'tinvwl_shortcode_products_counter' ) ) {

	/**
	 * Shortcode view Wishlist
	 *
	 * @param array $atts Array parameter from shortcode.
	 *
	 * @return string
	 */
	function tinvwl_shortcode_products_counter( $atts = array() ) {
		$class = TInvWL_Public_WishlistCounter::instance();

		return $class->shortcode( $atts );
	}

	add_shortcode( 'ti_wishlist_products_counter', 'tinvwl_shortcode_products_counter' );
}

if ( ! function_exists( 'tinvwl_view_addto_html' ) ) {

	/**
	 * Show button Add to Wishlsit
	 */
	function tinvwl_view_addto_html() {
		$class = TInvWL_Public_AddToWishlist::instance();
		$class->htmloutput();
	}
}

if ( ! function_exists( 'tinvwl_view_addto_htmlout' ) ) {

	/**
	 * Show button Add to Wishlsit, if product is not purchasable
	 */
	function tinvwl_view_addto_htmlout() {
		$class = TInvWL_Public_AddToWishlist::instance();
		$class->htmloutput_out();
	}
}

if ( ! function_exists( 'tinvwl_view_addto_htmlloop' ) ) {

	/**
	 * Show button Add to Wishlsit, in loop
	 */
	function tinvwl_view_addto_htmlloop() {
		$class = TInvWL_Public_AddToWishlist::instance();
		$class->htmloutput_loop();
	}
}

if ( ! function_exists( 'tinvwl_clean_url' ) ) {

	/**
	 * Clear esc_url to original
	 *
	 * @param string $good_protocol_url Cleared URL.
	 * @param string $original_url Original URL.
	 *
	 * @return string
	 */
	function tinvwl_clean_url( $good_protocol_url, $original_url ) {
		return $original_url;
	}
}

if ( ! function_exists( 'tinvwl_add_to_cart_need_redirect' ) ) {

	/**
	 * Check if the product is third-party, or has another link added to the cart then redirect to the product page.
	 *
	 * @param boolean $redirect Default value to redirect.
	 * @param \WC_Product $_product Product data.
	 * @param string $redirect_url Current url for redirect.
	 *
	 * @return boolean
	 */
	function tinvwl_add_to_cart_need_redirect( $redirect, $_product, $redirect_url ) {
		if ( $redirect ) {
			return true;
		}

		if ( 'external' === $_product->get_type() ) {
			return true;
		}

		$need_url_data = array_merge( array(
			'variation_id' => $_product->is_type( 'variation' ) ? $_product->get_id() : 0,
			'add-to-cart'  => $_product->is_type( 'variation' ) ? $_product->get_parent_id() : $_product->get_id(),
		), array_map( 'urlencode', array() ) );

		$need_url_data = array_filter( $need_url_data );

		$need_url      = apply_filters( 'tinvwl_product_add_to_cart_redirect_slug_original', remove_query_arg( 'added-to-cart', ( version_compare( WC_VERSION, '3.8.0', '<' ) ? add_query_arg( $need_url_data ) : add_query_arg( $need_url_data, '' ) ) ), $_product );
		$need_url_full = apply_filters( 'tinvwl_product_add_to_cart_redirect_url_original', remove_query_arg( 'added-to-cart', add_query_arg( $need_url_data, $_product->get_permalink() ) ), $_product );

		global $product;
		// store global product data.
		$_product_tmp = $product;
		// override global product data.
		$product = $_product;

		add_filter( 'clean_url', 'tinvwl_clean_url', 10, 2 );
		do_action( 'before_get_redirect_url' );
		$_redirect_url = apply_filters( 'tinvwl_product_add_to_cart_redirect_url', $_product->add_to_cart_url(), $_product );
		do_action( 'after_get_redirect_url' );
		remove_filter( 'clean_url', 'tinvwl_clean_url', 10 );

		// restore global product data.
		$product = $_product_tmp;

		if ( $_redirect_url !== $need_url && $_redirect_url !== $need_url_full ) {
			return true;
		}

		return $redirect;
	}

	add_filter( 'tinvwl_product_add_to_cart_need_redirect', 'tinvwl_add_to_cart_need_redirect', 10, 3 );
} // End if().

if ( ! function_exists( 'tinvwl_meta_validate_cart_add' ) ) {

	/**
	 * Checks the ability to add a product
	 *
	 * @param boolean $redirect Default value to redirect.
	 * @param \WC_Product $product Product data.
	 * @param string $redirect_url Current url for redirect.
	 * @param array $wl_product Wishlist Product.
	 *
	 * @return boolean
	 */
	function tinvwl_meta_validate_cart_add( $redirect, $product, $redirect_url, $wl_product ) {
		if ( $redirect && array_key_exists( 'meta', $wl_product ) && ! empty( $wl_product['meta'] ) ) {

			$wl_product = apply_filters( 'tinvwl_addproduct_tocart', $wl_product );

			TInvWL_Public_Cart::prepare_post( $wl_product );

			$product_id        = apply_filters( 'woocommerce_add_to_cart_product_id', absint( $wl_product['product_id'] ) );
			$quantity          = empty( $wl_product['quantity'] ) ? 1 : wc_stock_amount( $wl_product['quantity'] );
			$variation_id      = $wl_product['variation_id'];
			$variations        = $product->is_type( 'variation' ) ? wc_get_product_variation_attributes( $product->get_id() ) : array();
			$passed_validation = $product->is_purchasable() && ( $product->is_in_stock() || $product->backorders_allowed() ) && 'external' !== $product->get_type();
			ob_start();
			if ( function_exists( 'wc_clear_notices' ) ) {
				wc_clear_notices();
			}
			$passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', $passed_validation, $product_id, $quantity, $variation_id, $variations );
			if ( function_exists( 'wc_get_notices' ) ) {
				$wc_errors = wc_get_notices( 'error' );
			}
			$wc_output = ob_get_clean();
			if ( $passed_validation && empty( $wc_errors ) && empty( $wc_output ) ) {
				$redirect = false;
			}

			TInvWL_Public_Cart::unprepare_post( $wl_product );
		}

		return $redirect;
	}

	add_filter( 'tinvwl_product_add_to_cart_need_redirect', 'tinvwl_meta_validate_cart_add', 90, 4 );
} // End if().

if ( ! function_exists( 'tinv_wishlist_print_meta' ) ) {

	/**
	 * Print meta data for wishlist form
	 *
	 * @param array $meta Meta Array.
	 * @param boolean $flat Return text or template.
	 *
	 * @return string
	 */
	function tinv_wishlist_print_meta( $meta = array(), $flat = false ) {
		if ( ! is_array( $meta ) ) {
			$meta = array();
		}
		$product_id = $variation_id = 0;
		if ( array_key_exists( 'product_id', $meta ) ) {
			$product_id = $meta['product_id'];
		}
		if ( array_key_exists( 'variation_id', $meta ) ) {
			$variation_id = $meta['variation_id'];
		}
		foreach ( array( 'add-to-cart', 'product_id', 'variation_id', 'quantity', 'action', 'variation' ) as $field ) {
			if ( array_key_exists( $field, $meta ) ) {
				unset( $meta[ $field ] );
			}
		}
		if ( array_key_exists( 'tinvwl-hidden-fields', $meta ) ) {
			$hiddenFields = json_decode( $meta['tinvwl-hidden-fields'], true );
			if ( $hiddenFields !== null ) {
				foreach ( $hiddenFields as $hiddenKey ) {
					if ( isset( $meta[ $hiddenKey ] ) ) {
						unset( $meta[ $hiddenKey ] );
					}
				}
			}
			unset( $meta['tinvwl-hidden-fields'] );
		}
		$meta = array_filter( $meta );
		if ( empty( $meta ) ) {
			return '';
		}
		$item_data = array();
		foreach ( $meta as $key => $value ) {
			if ( ! preg_match( '/^\_/', $key ) ) {
				$item_data[ $key ] = array(
					'key'     => $key,
					'display' => $value,
				);
			}
		}

		foreach ( array_keys( $item_data ) as $key ) {
			if ( strpos( $key, 'attribute_' ) === 0 ) {
				unset( $item_data[ $key ] );
			}
		}

		$item_data = apply_filters( 'tinvwl_wishlist_item_meta_post', $item_data, $product_id, $variation_id );
		foreach ( $item_data as $key => $data ) {
			if ( is_object( $data['display'] ) || is_array( $data['display'] ) ) {
				$item_data[ $key ]['display'] = json_encode( $data['display'] );
			}
		}
		ob_start();
		if ( $flat ) {
			foreach ( $item_data as $data ) {
				echo esc_html( $data['key'] ) . ': ' . wp_kses_post( $data['display'] ) . '<br>';
			}
		} else {
			if ( $item_data ) {
				tinv_wishlist_template( 'ti-wishlist-item-data.php', array( 'item_data' => $item_data ) );
			}
		}

		return apply_filters( 'tinvwl_wishlist_item_meta_wishlist', ob_get_clean() );
	}
} // End if().

if ( ! function_exists( 'tinv_wishlistmeta' ) ) {

	/**
	 * Show new meta data
	 *
	 * @param string $meta Print meta.
	 * @param array $wl_product Wishlist product.
	 * @param \WC_Product $product Woocommerce product.
	 *
	 * @return string
	 */
	function tinv_wishlistmeta( $meta, $wl_product, $product ) {
		if ( array_key_exists( 'meta', $wl_product ) ) {
			$wlmeta = apply_filters( 'tinvwl_wishlist_item_meta_wishlist_output', tinv_wishlist_print_meta( $wl_product['meta'] ), $wl_product, $product );
			$meta   .= $wlmeta;
		}

		return $meta;
	}

	add_filter( 'tinvwl_wishlist_item_meta_data', 'tinv_wishlistmeta', 10, 3 );
}

if ( ! function_exists( 'tinvwl_add_to_cart_item_meta_post' ) ) {

	/**
	 * Save post data to cart item
	 *
	 * @param array $cart_item_data Array with cart item information.
	 * @param string $cart_item_key Cart item key.
	 *
	 * @return array
	 */
	function tinvwl_add_to_cart_item_meta_post( $cart_item_data, $cart_item_key ) {
		$postdata = $_POST; // @codingStandardsIgnoreLine WordPress.VIP.SuperGlobalInputUsage.AccessDetected

		$postdata = apply_filters( 'tinvwl_product_prepare_meta', $postdata, $cart_item_data['product_id'], $cart_item_data['variation_id'] );

		if ( array_key_exists( 'variation_id', $postdata ) && ! empty( $postdata['variation_id'] ) ) {
			foreach ( $postdata as $key => $field ) {
				if ( preg_match( '/^attribute\_/', $key ) ) {
					unset( $postdata[ $key ] );
				}
			}
		}
		foreach ( array( 'add-to-cart', 'product_id', 'variation_id', 'quantity' ) as $field ) {
			if ( array_key_exists( $field, $postdata ) ) {
				unset( $postdata[ $field ] );
			}
		}
		$postdata = array_filter( $postdata );
		if ( empty( $postdata ) ) {
			return $cart_item_data;
		}
		ksort( $postdata );

		$cart_item_data['tinvwl_formdata'] = $postdata;

		return $cart_item_data;
	}

	add_action( 'woocommerce_add_cart_item', 'tinvwl_add_to_cart_item_meta_post', 10, 2 );
} // End if().

if ( ! function_exists( 'tinvwl_set_utm' ) ) {

	/**
	 * Set UTM sources.
	 */
	function tinvwl_set_utm() {

		// Set a source.
		define( 'TINVWL_UTM_SOURCE', 'wordpress_org' );

		// Set a medium.
		define( 'TINVWL_UTM_MEDIUM', 'organic' );

		// Set a campaign.
		define( 'TINVWL_UTM_CAMPAIGN', 'organic' );
	}
} // End if().

if ( ! function_exists( 'is_wishlist' ) ) {

	/**
	 * is_wishlist - Returns true when viewing the wishlist page.
	 *
	 * @return bool
	 */
	function is_wishlist() {
		return ( is_page( apply_filters( 'wpml_object_id', tinv_get_option( 'page', 'wishlist' ), 'page', true ) ) );
	}
}

if ( ! function_exists( 'tinvwl_get_wishlist_products' ) ) {
	/**
	 * Get wishlist products for default user wishlist or by ID or SHAREKEY
	 *
	 * @param int $wishlist_id by ID or SHAREKEY, 0 = default wishlist of current user
	 * @param array $data query parameters for get() method of TInvWL_Product() class.
	 *
	 * @return array|bool
	 */
	function tinvwl_get_wishlist_products( $wishlist_id = 0, $data = array() ) {
		$wishlist = tinv_wishlist_get( $wishlist_id );
		if ( empty( $wishlist ) ) {
			return false;
		}
		$wlp      = new TInvWL_Product( $wishlist );
		$products = $wlp->get_wishlist( $data );

		if ( empty( $products ) ) {
			return false;
		}

		return $products;
	}
}

if ( ! function_exists( 'wp_recursive_ksort' ) ) {
	/**
	 * Sorts the keys of an array alphabetically.
	 * The array is passed by reference so it doesn't get returned
	 * which mimics the behaviour of ksort.
	 *
	 * @param array $array The array to sort, passed by reference.
	 *
	 * @since 2.3.1
	 *
	 */
	function wp_recursive_ksort( &$array ) {
		foreach ( $array as &$value ) {
			if ( is_array( $value ) ) {
				wp_recursive_ksort( $value );
			}
		}
		ksort( $array );
	}
}

if ( ! function_exists( 'wc_is_attribute_in_product_name' ) ) {
	/**
	 * Check if an attribute is included in the attributes area of a variation name.
	 *
	 * @param string $attribute Attribute value to check for.
	 * @param string $name Product name to check in.
	 *
	 * @return bool
	 * @since  2.3.1
	 */
	function wc_is_attribute_in_product_name( $attribute, $name ) {
		$is_in_name = stristr( $name, ' ' . $attribute . ',' ) || 0 === stripos( strrev( $name ), strrev( ' ' . $attribute ) );

		return apply_filters( 'woocommerce_is_attribute_in_product_name', $is_in_name, $attribute, $name );
	}
}

add_action( 'admin_init', 'tinvwl_handle_external_redirects', 9 );

function tinvwl_handle_external_redirects() {
	if ( empty( $_GET['page'] ) ) {
		return;
	}
	if ( 'tinvwl-upgrade' === $_GET['page'] ) {
		wp_redirect( 'https://templateinvaders.com/product/ti-woocommerce-wishlist-wordpress-plugin/?utm_source=' . TINVWL_UTM_SOURCE . '&utm_campaign=' . TINVWL_UTM_CAMPAIGN . '&utm_medium=' . TINVWL_UTM_MEDIUM . '&utm_content=wp_menu&partner=' . TINVWL_UTM_SOURCE );
		die;
	}
}

add_action( 'init', function () {
	if ( ! is_user_logged_in() ) {
		add_filter( 'nonce_user_logged_out', function ( $uid, $action = - 1 ) {
			if ( $action === 'wp_rest' ) {
				return get_current_user_id();
			}

			return $uid;
		}, 99, 2 );
	}
} );

/**
 * Get message placeholders for the add-to-wishlist message.
 *
 * @param string $string The message string to replace placeholders.
 * @param WC_Product|null $product (Optional) The product to get the message placeholders for.
 * @param array|null $wishlist (Optional) The wishlist to get the message placeholders for.
 *
 * @return string The message string with replaced placeholders.
 */
function tinvwl_message_placeholders( string $string, ?WC_Product $product = null, ?array $wishlist = null ): string {
	$placeholders = [];

	if ( $product instanceof WC_Product ) {
		$placeholders['{product_name}'] = is_callable( [ $product, 'get_name' ] )
			? $product->get_name()
			: $product->get_title();
		$placeholders['{product_sku}']  = $product->get_sku();
	}

	if ( is_array( $wishlist ) ) {
		$wishlist_title                   = empty( $wishlist['title'] )
			? apply_filters( 'tinvwl_default_wishlist_title', tinv_get_option( 'general', 'default_title' ) )
			: $wishlist['title'];
		$placeholders['{wishlist_title}'] = $wishlist_title;
	}

	/**
	 * Filters the message placeholders for the add-to-wishlist message.
	 *
	 * @param array $placeholders The message placeholders.
	 * @param WC_Product|null $product The product to get the message placeholders for.
	 * @param array|null $wishlist The wishlist to get the message placeholders for.
	 */
	$placeholders = apply_filters( 'tinvwl_addtowishlist_message_placeholders', $placeholders, $product, $wishlist );

	$find    = array_keys( $placeholders );
	$replace = array_values( $placeholders );

	return str_replace( $find, $replace, $string );
}

// Declare scheduled hooks
add_action( 'tinvwl_flush_rewrite_rules', 'TInvWL_Public_TInvWL::apply_rewrite_rules' );
add_action( 'tinvwl_disable_notifications_event', 'TInvWL_Admin_Notices::disable_notifications' );
add_action( 'tinvwl_remove_without_author_wishlist', 'TInvWL_Admin_TInvWL::remove_old_wishlists' );