<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'AIEO_FiboFilters_Shop', false ) ) {

	class AIEO_FiboFilters_Shop {

		
		const ID = 'fibofilters';

		
		const HANDLE = 'aieo-fibofilters';

		
		const BLOCK   = 'woocommerce/product-filters';
		const FILTERS = 'rooster-shop__filters-desktop';

		
		const WIDE = 782;

		
		const LOOP       = array( '.wc-block-product-template', '.wp-block-woocommerce-product-template' );
		const PAGINATION = array( '.rooster-more', '.wp-block-query-pagination' );

		
		const SCRIPT = 'fibofilters';
		const OPENER = '.aieo-fibofilters__open';

		
		const APPLIED        = 'applied';
		const APPLIED_COLUMN = 'column';
		const APPLIED_ABOVE  = 'above';

		private static $booted = false;

		
		private static $printed = '';

		
		private static $marking = false;

		public static function boot() {
			if ( self::$booted ) {
				return;
			}
			self::$booted = true;
			if ( is_admin() && ! wp_doing_ajax() ) {
				return;
			}
			add_filter( 'pre_render_block', array( __CLASS__, 'filters' ), 10, 2 );
			add_filter( 'pre_do_shortcode_tag', array( __CLASS__, 'auto_placed' ), 10, 3 );
			add_filter( 'do_shortcode_tag', array( __CLASS__, 'applied_row' ), 10, 3 );
			add_filter( 'fibofilters/config/products_loop_selectors', array( __CLASS__, 'loop_selectors' ), 20 );
			add_filter( 'fibofilters/config/pagination_selectors', array( __CLASS__, 'pagination_selectors' ), 20 );
			add_filter( 'fibofilters/config/products_fetching_strategy', array( __CLASS__, 'fetching_strategy' ), 20 );
			add_filter( 'rooster/shop/pagination', array( __CLASS__, 'theme_pagination' ), 20 );
			add_filter( 'rooster/performance/delay_keep', array( __CLASS__, 'run_at_load' ), 20 );
			add_filter( 'rooster/third_party/handles', array( __CLASS__, 'run_on_intent' ), 20 );
			add_filter( 'rooster/used_css/safelist', array( __CLASS__, 'drawn_at_load' ), 20 );
			add_action( 'parse_request', array( __CLASS__, 'products_request' ), 1 );
		}

		
		public static function device() {
			$known = class_exists( '\Rooster\Core\DeviceClass' ) && is_callable( array( '\Rooster\Core\DeviceClass', 'enabled' ) ) && \Rooster\Core\DeviceClass::enabled();
			if ( ! $known || ! function_exists( 'rooster_device_class' ) ) {
				return '';
			}
			return 'mobile' === rooster_device_class() ? 'mobile' : 'desktop';
		}

		
		public static function run_at_load( $roots ) {
			if ( 'vertical' !== self::$printed ) {
				return $roots;
			}
			$roots   = (array) $roots;
			$roots[] = self::SCRIPT;
			$roots[] = self::HANDLE;
			return array_values( array_unique( $roots ) );
		}

		
		public static function run_on_intent( $handles ) {
			if ( 'mobile' !== self::$printed ) {
				return $handles;
			}
			$handles                 = (array) $handles;
			$handles[ self::SCRIPT ] = array( 'trigger' => 'intent:' . self::OPENER );
			return $handles;
		}

		
		public static function drawn_at_load( $patterns ) {
			if ( 'vertical' !== self::$printed ) {
				return $patterns;
			}
			$patterns   = (array) $patterns;
			$patterns[] = '/^fibofilters-/';
			return $patterns;
		}

		
		public static function products_request() {
			if ( ! self::is_products_request() || ! class_exists( '\Rooster\Core\More' ) || ! is_callable( array( '\Rooster\Core\Compat\WooCommerce', 'products_part' ) ) || ! self::applies() ) {
				return;
			}
			$_GET[ \Rooster\Core\More::PART_ARG ] = 'products';
		}

		
		public static function is_products_request() {
			
			if ( isset( $_REQUEST['fibofilters-products'] ) || isset( $_POST['fibofilters-products'] ) ) {
				return true;
			}
			if ( 'POST' !== ( $_SERVER['REQUEST_METHOD'] ?? '' ) ) {
				return false;
			}
			$body = (string) file_get_contents( 'php://input', false, null, 0, 1048576 ); 
			if ( 0 !== strpos( $body, '{' ) || false === strpos( $body, 'fibofilters-products' ) ) {
				return false;
			}
			$data = json_decode( $body, true );
			return is_array( $data ) && isset( $data['fibofilters-products'] );
		}

		
		public static function applied_place() {
			$place = class_exists( 'AIEO_Recognised_Plugins' ) ? AIEO_Recognised_Plugins::choice( self::ID, self::APPLIED ) : self::APPLIED_COLUMN;
			
			$place = (string) apply_filters( 'aieo_fibofilters_applied_place', $place );
			return self::APPLIED_ABOVE === $place ? self::APPLIED_ABOVE : self::APPLIED_COLUMN;
		}

		
		public static function has_chosen() {
			$stored  = get_option( 'fibofilters_filters', array() );
			$filters = is_string( $stored ) ? json_decode( $stored, true ) : $stored;
			foreach ( is_array( $filters ) ? $filters : array() as $filter ) {
				
				$attrs = is_array( $filter ) && isset( $filter['attributes'] ) && is_array( $filter['attributes'] ) ? $filter['attributes'] : ( is_array( $filter ) ? $filter : array() );
				$slug  = (string) ( $attrs['url_slug'] ?? '' );
				
				if ( '' !== $slug && isset( $_GET[ $slug ] ) && '' !== trim( (string) wp_unslash( $_GET[ $slug ] ) ) ) { 
					return true;
				}
			}
			return false;
		}

		
		public static function theme_pagination( $mode ) {
			return self::applies() ? 'pages' : $mode;
		}

		
		public static function available() {
			if ( ! shortcode_exists( 'fibofilters' ) || ! function_exists( 'rooster_device_class' ) || ! function_exists( 'rooster_icon' ) ) {
				return false;
			}
			
			$no = isset( $_GET['nofibofilters'] ) ? sanitize_key( wp_unslash( $_GET['nofibofilters'] ) ) : '';
			return ! in_array( $no, array( '1', '2' ), true ) && ! in_array( (string) apply_filters( 'fibofilters/nofibofilters', '' ), array( '1', '2' ), true );
		}

		
		public static function switched_on() {
			return ! class_exists( 'AIEO_Recognised_Plugins' ) || AIEO_Recognised_Plugins::on( self::ID );
		}

		
		public static function applies( $block = null ) {
			if ( ! self::available() ) {
				return false;
			}
			
			return (bool) apply_filters( 'aieo_fibofilters_shop', self::switched_on(), $block );
		}

		
		public static function filters( $pre, $parsed ) {
			if ( null !== $pre || ! is_array( $parsed ) || self::BLOCK !== ( $parsed['blockName'] ?? '' ) ) {
				return $pre;
			}
			if ( false === strpos( (string) ( $parsed['attrs']['className'] ?? '' ), self::FILTERS ) || ! self::applies( $parsed ) ) {
				return $pre;
			}
			$html = self::markup();
			if ( '' === $html ) {
				return $pre;
			}
			$device        = self::device();
			self::$printed = '' === $device ? 'both' : ( 'mobile' === $device ? 'mobile' : 'vertical' );
			self::assets();
			$block = new WP_Block( $parsed );
			
			return (string) apply_filters( 'render_block_' . self::BLOCK, $html, $parsed, $block ); 
		}

		
		public static function markup() {
			$device = rooster_device_class();
			$known  = '' !== self::device();
			$parts  = array();
			if ( ! $known || 'mobile' !== $device ) {
				$vertical = self::shortcode( 'vertical', $known ? 1 : self::WIDE, 99999 );
				if ( '' !== $vertical ) {
					
					
					self::$marking = true;
					$applied       = self::APPLIED_COLUMN === self::applied_place() && shortcode_exists( 'fibofilters_applied_filters' ) ? do_shortcode( '[fibofilters_applied_filters]' ) : '';
					self::$marking = false;
					$parts[] = '<div class="wc-block-product-filters__overlay"><div class="wc-block-product-filters__overlay-content">' . $vertical . $applied . '</div></div>';
				}
			}
			if ( ! $known || 'mobile' === $device ) {
				$mobile = self::shortcode( 'mobile', 1, $known ? 99999 : self::WIDE - 1 );
				if ( '' !== $mobile ) {
					$parts[] = self::opener() . $mobile;
				}
			}
			if ( array() === $parts ) {
				return '';
			}
			$layout = ! $known ? 'both' : ( 'mobile' === $device ? 'mobile' : 'vertical' );
			
			
			$heading = '<h2 class="screen-reader-text">' . esc_html__( 'Filters', 'ai-eshop-optimizer' ) . '</h2>';
			return '<div class="wc-block-product-filters wp-block-woocommerce-product-filters ' . esc_attr( self::FILTERS ) . ' aieo-fibofilters aieo-fibofilters--' . esc_attr( $layout ) . '" data-rooster-ui="rooster-one/fibofilters" data-aieo-close="' . esc_attr__( 'Close', 'ai-eshop-optimizer' ) . '">' . $heading . implode( '', $parts ) . '</div>';
		}

		
		private static function opener() {
			return '<button type="button" class="wc-block-product-filters__open-overlay aieo-fibofilters__open" aria-haspopup="dialog" aria-expanded="false">'
				. rooster_icon( 'list-filter', array( 'width' => 18, 'height' => 18 ) )
				. '<span>' . esc_html__( 'Filters', 'ai-eshop-optimizer' ) . '</span></button>';
		}

		
		public static function auto_placed( $out, $tag, $attr ) {
			if ( false !== $out || ! in_array( $tag, array( 'fibofilters', 'fibofilters_applied_filters' ), true ) || ! doing_action( 'woocommerce_before_shop_loop' ) ) {
				return $out;
			}
			if ( 'fibofilters_applied_filters' === $tag ) {
				return '' !== self::$printed && ( 'mobile' === self::$printed || self::APPLIED_ABOVE !== self::applied_place() ) && self::applies() ? '' : $out;
			}
			$layout = is_array( $attr ) && isset( $attr['layout'] ) ? (string) $attr['layout'] : '';
			return in_array( $layout, array( 'horizontal', 'mobile' ), true ) && self::applies() ? '' : $out;
		}

		
		public static function applied_row( $out, $tag, $attr ) {
			if ( 'fibofilters_applied_filters' !== $tag || ! is_string( $out ) || false === strpos( $out, 'class="fibofilters-applied-filters-container' ) ) {
				return $out;
			}
			if ( self::$marking ) {
				$place = self::APPLIED_COLUMN;
			} elseif ( 'vertical' === self::$printed && doing_action( 'woocommerce_before_shop_loop' ) ) {
				$place = self::APPLIED_ABOVE;
			} else {
				return $out;
			}
			$classes = 'fibofilters-applied-filters-container aieo-fibofilters-applied aieo-fibofilters-applied--' . $place . ( self::has_chosen() ? ' is-reserved' : '' );
			return (string) preg_replace( '/class="fibofilters-applied-filters-container/', 'class="' . esc_attr( $classes ), $out, 1 );
		}

		
		private static function shortcode( $layout, $min, $max ) {
			$html = do_shortcode( sprintf( '[fibofilters layout="%s" min_screen="%d" max_screen="%d"]', $layout, (int) $min, (int) $max ) );
			return false !== strpos( (string) $html, 'fibofilters-' . $layout . '-filters-container' ) ? (string) $html : '';
		}

		
		public static function loop_selectors( $selectors ) {
			return self::applies() ? array_values( array_unique( array_merge( self::LOOP, (array) $selectors ) ) ) : $selectors;
		}

		
		public static function pagination_selectors( $selectors ) {
			return self::applies() ? array_values( array_unique( array_merge( (array) $selectors, self::PAGINATION ) ) ) : $selectors;
		}

		
		public static function fetching_strategy( $strategy ) {
			return self::applies() ? 'page' : $strategy;
		}

		
		private static function assets() {
			if ( wp_style_is( self::HANDLE, 'enqueued' ) ) {
				return;
			}
			$root = dirname( __DIR__ );
			$css  = ( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) && file_exists( $root . '/assets/css/aieo-fibofilters.min.css' ) ? 'assets/css/aieo-fibofilters.min.css' : 'assets/css/aieo-fibofilters.css';
			if ( file_exists( $root . '/' . $css ) ) {
				wp_enqueue_style( self::HANDLE, plugins_url( $css, __DIR__ ), array(), (string) filemtime( $root . '/' . $css ) );
			}
			$js = ( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) && file_exists( $root . '/assets/js/aieo-fibofilters.min.js' ) ? 'assets/js/aieo-fibofilters.min.js' : 'assets/js/aieo-fibofilters.js';
			if ( file_exists( $root . '/' . $js ) ) {
				wp_enqueue_script( self::HANDLE, plugins_url( $js, __DIR__ ), array(), (string) filemtime( $root . '/' . $js ), array( 'in_footer' => true, 'strategy' => 'defer' ) );
			}
		}
	}
}