<?php
/**
 * Class AssetRegistry
 *
 * Gathers and processes frontend JS and CSS assets based on active ShopBuilder modules.
 *
 * @package RadiusTheme\SB\Services
 * @since   1.0.0
 */

namespace RadiusTheme\SB\Controllers;

use RadiusTheme\SB\Helpers\Fns;
use RadiusTheme\SB\Helpers\BuilderFns;
use RadiusTheme\SB\Models\AssetBundler;
use RadiusTheme\SB\Traits\SingletonTrait;

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

/**
 * Class AssetRegistry
 */
class AssetRegistry {
	use SingletonTrait;

	/**
	 * List of enabled module slugs.
	 *
	 * @var array
	 */
	protected $enabled_modules = [];

	/**
	 * List of enabled modules JS.
	 *
	 * @var array
	 */
	protected $enabled_modules_js = [];

	/**
	 * List of enabled modules CSS.
	 *
	 * @var array
	 */
	protected $enabled_modules_css = [];

	/**
	 * List of enabled Elementor widgets.
	 *
	 * @var array
	 */
	protected $enabled_el_widgets = [];

	/**
	 * List of enabled Elementor widgets.
	 *
	 * @var array
	 */
	protected $enabled_widgets = [];

	/**
	 * Full paths to JS assets.
	 *
	 * @var array
	 */
	protected $js_files = [];

	/**
	 * Full paths to CSS assets.
	 *
	 * @var array
	 */
	protected $css_files = [];

	/**
	 * Cached bundled JS asset.
	 *
	 * @var array|null
	 */
	protected $bundled_js = null;

	/**
	 * Cached bundled CSS asset.
	 *
	 * @var array|null
	 */
	protected $bundled_css = null;

	/**
	 * RTL suffix.
	 *
	 * @var string
	 */
	private $suffix = '';

	/**
	 * Directory path.
	 *
	 * @var string
	 */
	private $dir;

	/**
	 * Cached bundled assets.
	 *
	 * @var array|null
	 */
	private $bundled_assets = null;

	/**
	 * List of loaded asset types.
	 *
	 * @var array
	 */
	private static $loaded_types = [];

	/**
	 * List of loaded shared assets.
	 *
	 * @var array
	 */
	private $shared_loaded = [];

	/**
	 * Contextual loading.
	 *
	 * @var bool
	 */
	private $contextual_loading;

	/**
	 * Class constructor.
	 */
	private function __construct() {
		$this->enabled_modules     = $this->get_enabled_modules();
		$this->enabled_modules_js  = $this->get_enabled_modules_js_with_context();
		$this->enabled_modules_css = $this->get_enabled_modules_css_with_context();
		$this->enabled_el_widgets  = $this->get_enabled_el_widgets();
		$this->enabled_widgets     = $this->get_enabled_widgets_with_context();
		$this->suffix              = is_rtl() ? '-rtl' : '';
		$this->dir                 = is_rtl() ? trailingslashit( 'rtl' ) : trailingslashit( 'css' );
		$this->contextual_loading  = Fns::is_contextual_loading();
	}

	/**
	 * Get bundled JS assets by context.
	 *
	 * @return array
	 */
	public function get_bundled_js_by_context() {
		$js_files_by_context = $this->get_contextual_assets( 'js' );
		$bundled_contexts    = [];

		foreach ( $js_files_by_context as $context => $files ) {
			if ( empty( $files ) ) {
				continue;
			}

			$bundler = new AssetBundler( "rtsb-bundled-$context", $files, 'js' );
			$src     = $bundler->build();
			$deps    = [ 'jquery', 'rtsb-tipsy' ];

			$builder_page_id = BuilderFns::builder_page_id_by_page();

			if ( Fns::is_elementor_page( $builder_page_id ) ) {
				$deps[] = 'imagesloaded';
			}

			$bundled_contexts[ $context ] = [
				'handle' => "rtsb-bundled-$context",
				'src'    => $src,
				'deps'   => apply_filters( 'rtsb/optimizer/scripts/deps', $deps ),
				'footer' => true,
			];
		}

		return $bundled_contexts;
	}

	/**
	 * Returns assets grouped by context with `global` inherited for each.
	 *
	 * @param string $type 'css' or 'js'.
	 *
	 * @return array
	 */
	public function get_contextual_assets( $type ) {
		$all_contexts = 'js' === $type ? $this->get_scripts_by_context() : $this->get_styles_by_context();

		$normalized = array_map(
			function ( $paths ) {
				return array_unique( $paths );
			},
			$all_contexts
		);

		foreach ( $normalized as $context => $paths ) {
			if ( 'global' === $context ) {
				continue;
			}

			$normalized[ $context ] = array_unique(
				array_merge(
					$normalized['global'] ?? [],
					$paths
				)
			);
		}

		return $normalized;
	}

	/**
	 * Returns scripts grouped by context.
	 *
	 * @return array
	 */
	public function get_scripts_by_context() {
		$context_scripts = [];

		// Add core-init globally.
		$core_path                   = $this->context()->get_assets_path( 'js/frontend/core-init.js' );
		$context_scripts['global'][] = $core_path;

		$shared_registry = apply_filters(
			'rtsb/optimizer/scripts/shared/components',
			[
				'coupon'   => [
					'path'    => rtsb()->get_assets_path( 'js/modules/shared/coupon.js' ),
					'modules' => [ 'shopify-checkout', 'quick-checkout' ],
					'widgets' => [ 'cart-coupon-form', 'coupon-form' ],
					'context' => Fns::is_module_active( 'quick_checkout' ) ? [ 'global' ] : [ 'cart', 'checkout' ],
				],
				'quantity' => [
					'path'    => rtsb()->get_assets_path( 'js/modules/shared/cart-quantity-handler.js' ),
					'modules' => [ 'sticky-add-to-cart' ],
					'widgets' => [ 'cart-table', 'product-add-to-cart' ],
					'context' => Fns::is_module_active( 'quick_view' ) ? [ 'global' ] : [ 'product', 'cart' ],
				],
			]
		);

		$shared_loaded = [];

		// Load module-based shared scripts.
		foreach ( $this->enabled_modules_js as $module_slug => $module ) {
			if ( ! $module['enabled'] ) {
				continue;
			}

			foreach ( $shared_registry as $key => $data ) {
				if ( in_array( $module_slug, $data['modules'], true ) ) {
					$shared_loaded[ $key ] = $data;
				}
			}

			$module_slug = apply_filters( 'rtsb/optimizer/module/remap', $module_slug );
			$path        = Fns::locate_asset( "js/modules/$module_slug.js" );

			if ( $path ) {
				$category = ! empty( $module['category'] ) ? $module['category'] : [ 'global' ];

				foreach ( $category as $cat ) {
					$context_scripts[ $cat ][] = $path;
				}
			}
		}

		// Elementor-specific widget scripts.
		if ( defined( 'ELEMENTOR_VERSION' ) && Fns::should_load_elementor_scripts() ) {
			foreach ( $this->enabled_widgets as $slug => $widget ) {
				if ( ! $widget['enabled'] ) {
					continue;
				}

				foreach ( $shared_registry as $key => $data ) {
					if ( isset( $shared_loaded[ $key ] ) ) {
						continue;
					}

					if ( in_array( $slug, $data['widgets'], true ) ) {
						$shared_loaded[ $key ] = $data;
					}
				}

				$path = Fns::locate_asset( "js/frontend/elementor/$slug.js" );

				if ( $path ) {
					$category = ! empty( $widget['category'] ) ? $widget['category'] : 'global';

					if ( 'general' === $category ) {
						$category = 'global';
					}

					$context_scripts[ $category ][] = $path;
				}
			}

			$core_el = Fns::locate_asset( 'js/frontend/elementor/el-frontend-core.js' );

			if ( $core_el ) {
				$context_scripts['global'][] = $core_el;
			}
		}

		foreach ( $shared_loaded as $data ) {
			if ( empty( $data['path'] ) ) {
				continue;
			}

			$contexts = $data['context'] ?? [ 'global' ];

			foreach ( (array) $contexts as $ctx ) {
				$context_scripts[ $ctx ][] = $data['path'];
			}
		}

		$context_scripts = apply_filters(
			'rtsb/optimizer/scripts/shared',
			$context_scripts,
			$this->enabled_modules,
			$this->enabled_widgets
		);
		return apply_filters( 'rtsb/optimizer/scripts', $context_scripts );
	}

	/**
	 * Get structured JS scripts.
	 *
	 * @return array[]
	 */
	public function get_scripts() {
		$scripts        = [];
		$shared_scripts = [];
		$shared_loaded  = [];

		// Load core.
		$scripts[] = $this->context()->get_assets_path( 'js/frontend/core-init.js' );

		$shared_registry = apply_filters(
			'rtsb/optimizer/scripts/shared/components',
			[
				'coupon'   => [
					'path'    => rtsb()->get_assets_path( 'js/modules/shared/coupon.js' ),
					'modules' => [ 'shopify-checkout', 'quick-checkout' ],
					'widgets' => [ 'cart-coupon-form', 'coupon-form' ],
				],
				'quantity' => [
					'path'    => rtsb()->get_assets_path( 'js/modules/shared/cart-quantity-handler.js' ),
					'modules' => [ 'sticky-add-to-cart' ],
					'widgets' => [ 'cart-table', 'product-add-to-cart' ],
				],
			]
		);

		foreach ( $this->enabled_modules as $module ) {
			foreach ( $shared_registry as $key => $data ) {
				if ( in_array( $module, $data['modules'], true ) ) {
					$shared_loaded[ $key ] = true;
				}
			}

			$module = apply_filters( 'rtsb/optimizer/module/remap', $module );
			$path   = Fns::locate_asset( "js/modules/$module.js" );

			if ( $path ) {
				$scripts[] = $path;
			}
		}

		if ( defined( 'ELEMENTOR_VERSION' ) && Fns::should_load_elementor_scripts() ) {
			foreach ( $this->enabled_el_widgets as $widget ) {
				foreach ( $shared_registry as $key => $data ) {
					if ( isset( $shared_loaded[ $key ] ) ) {
						continue;
					}

					if ( in_array( $widget, $data['widgets'], true ) ) {
						$shared_loaded[ $key ] = true;
					}
				}

				$path = Fns::locate_asset( "js/frontend/elementor/$widget.js" );

				if ( $path ) {
					$scripts[] = $path;
				}
			}

			$scripts[] = Fns::locate_asset( 'js/frontend/elementor/el-frontend-core.js' );
		}

		foreach ( $shared_loaded as $key => $_ ) {
			if ( isset( $shared_registry[ $key ]['path'] ) ) {
				$shared_scripts[] = $shared_registry[ $key ]['path'];
			}
		}

		$shared_scripts = apply_filters(
			'rtsb/optimizer/scripts/shared',
			$shared_scripts,
			$this->enabled_modules,
			$this->enabled_el_widgets
		);

		$scripts = array_merge( $scripts, array_unique( $shared_scripts ) );

		return array_unique( apply_filters( 'rtsb/optimizer/scripts', $scripts ) );
	}

	/**
	 * Get structured CSS styles.
	 *
	 * @return array[]
	 */
	public function get_styles() {
		$elementor_styles = defined( 'ELEMENTOR_VERSION' ) && Fns::should_load_elementor_scripts()
			? $this->get_elementor_styles() : [];

		return apply_filters(
			'rtsb/optimizer/styles',
			array_merge(
				$this->get_base_styles(),
				$this->get_module_styles(),
				$elementor_styles
			)
		);
	}

	/**
	 * Get structured CSS styles.
	 *
	 * @return array[]
	 */
	public function get_styles_by_context() {
		$core      = $this->get_base_styles_by_context();
		$modules   = $this->get_module_styles_by_context();
		$elementor = defined( 'ELEMENTOR_VERSION' ) && Fns::should_load_elementor_scripts() ? $this->get_elementor_styles_by_context() : [];

		$merged = [];

		foreach ( [ $core, $modules, $elementor ] as $group ) {
			foreach ( $group as $context => $paths ) {
				foreach ( $paths as $file ) {
					$merged[ $context ][] = $file;
				}
			}
		}

		return apply_filters( 'rtsb/optimizer/styles/by_context', $merged );
	}

	/**
	 * Get base styles.
	 *
	 * @return array
	 */
	protected function get_base_styles() {
		return apply_filters(
			'rtsb/optimizer/styles/base',
			[
				rtsb()->get_assets_path( 'css/frontend/rtsb-fonts.css' ),
				Fns::locate_asset( $this->dir . 'frontend/frontend-core' . $this->suffix . '.css' ),
			]
		);
	}

	/**
	 * Get base styles.
	 *
	 * @return array
	 */
	protected function get_base_styles_by_context() {
		$styles = array_filter(
			[
				rtsb()->get_assets_path( 'css/frontend/rtsb-fonts.css' ),
				Fns::locate_asset( $this->dir . 'frontend/frontend-core' . $this->suffix . '.css' ),
			]
		);

		return [
			'global' => $styles,
		];
	}

	/**
	 * Get module styles.
	 *
	 * @return array
	 */
	protected function get_module_styles() {
		$styles = [];

		if ( empty( $this->enabled_modules ) ) {
			return $styles;
		}

		$styles = array_merge( $styles, $this->get_shared_module_styles() );

		foreach ( $this->enabled_modules as $module ) {
			$module = apply_filters( 'rtsb/optimizer/module/remap', $module );
			$path   = Fns::locate_asset( "{$this->dir}modules/$module$this->suffix.css" );

			if ( $path ) {
				$styles[] = $path;
			}
		}

		$styles = apply_filters( 'rtsb/optimizer/styles/module', $styles );

		return array_unique( $styles );
	}

	/**
	 * Get module styles.
	 *
	 * @return array
	 */
	protected function get_module_styles_by_context() {
		$content_styles = [];

		if ( empty( $this->enabled_modules_css ) ) {
			return $content_styles;
		}

		$content_styles = array_merge( $content_styles, $this->get_shared_module_styles() );

		foreach ( $this->enabled_modules_css as $module_slug => $module ) {
			if ( ! $module['enabled'] ) {
				continue;
			}

			$module_slug = apply_filters( 'rtsb/optimizer/module/remap', $module_slug );
			$path        = Fns::locate_asset( "{$this->dir}modules/$module_slug$this->suffix.css" );

			if ( $path ) {
				$category = ! empty( $module['category'] ) ? $module['category'] : [ 'global' ];

				foreach ( $category as $cat ) {
					$content_styles[ $cat ][] = $path;
				}
			}
		}

		return apply_filters( 'rtsb/optimizer/styles/module', $content_styles );
	}

	/**
	 * Get Elementor styles.
	 *
	 * @return array
	 */
	protected function get_elementor_styles() {
		$styles = [ Fns::locate_asset( $this->dir . 'frontend/elementor/el-frontend-core' . $this->suffix . '.css' ) ];
		$shared = $this->contextual_loading ? $this->get_elementor_shared_widget_styles_by_context() : $this->get_elementor_shared_widget_styles();
		$styles = array_merge( $styles, $shared );

		foreach ( $this->enabled_el_widgets as $widget ) {
			$path = Fns::locate_asset( "{$this->dir}frontend/elementor/$widget$this->suffix.css" );

			if ( $path ) {
				$styles[] = $path;
			}
		}

		return array_unique( $styles );
	}

	/**
	 * Get Elementor styles.
	 *
	 * @return array
	 */
	protected function get_elementor_styles_by_context() {
		$styles = [];

		$styles['global'] = [
			Fns::locate_asset( $this->dir . 'frontend/elementor/el-frontend-core' . $this->suffix . '.css' ),
		];

		$shared_styles = $this->get_elementor_shared_widget_styles_by_context();

		foreach ( $shared_styles as $context => $context_styles ) {
			foreach ( (array) $context_styles as $style ) {
				$styles[ $context ][] = $style;
			}
		}

		foreach ( $this->enabled_widgets as $widget_slug => $info ) {
			if ( empty( $info['enabled'] ) ) {
				continue;
			}

			$contexts = $info['category'] ?? [ 'global' ];

			foreach ( (array) $contexts as $ctx ) {
				if ( 'general' === $ctx ) {
					$ctx = 'global';
				}

				$path = Fns::locate_asset( "{$this->dir}frontend/elementor/{$widget_slug}{$this->suffix}.css" );

				if ( $path ) {
					$styles[ $ctx ][] = $path;
				}
			}
		}

		return $styles;
	}

	/**
	 * Get shared styles based on enabled modules.
	 *
	 * @return array
	 */
	protected function get_shared_module_styles() {
		$shared_styles_map = apply_filters(
			'rtsb/optimizer/styles/modules/shared',
			[
				[
					'modules'   => [ 'wishlist', 'compare' ],
					'file_name' => 'shared/module-buttons',
					'context'   => [ 'global' ],
				],
				[
					'modules'   => [ 'quick-view', 'product-size-chart', 'quick-checkout' ],
					'file_name' => 'shared/modal-layouts',
					'context'   => [ 'global' ],
				],
			]
		);

		// Add global shared.
		$shared_by_components = $this->get_shared_style_components();

		if ( ! $this->contextual_loading ) {
			foreach ( $shared_by_components as $key => $data ) {
				if ( ! empty( $data['modules'] ) && array_intersect( $data['modules'], $this->enabled_modules ) ) {
					$shared_styles_map[]         = [
						'modules'   => $data['modules'],
						'file_name' => $data['file_name'],
					];
					$this->shared_loaded[ $key ] = true;
				}
			}

			$styles = [];

			if ( empty( $this->enabled_modules ) ) {
				return $styles;
			}

			foreach ( $shared_styles_map as $group ) {
				if ( array_intersect( $group['modules'], $this->enabled_modules ) ) {
					$styles[] = Fns::locate_asset( "{$this->dir}modules/{$group['file_name']}{$this->suffix}.css" );
				}
			}

			return array_unique( $styles );
		}

		$enabled_widget_slugs = array_keys(
			array_filter( $this->enabled_widgets, fn( $w ) => ! empty( $w['enabled'] ) )
		);

		$enabled_module_slugs = array_keys(
			array_filter( $this->enabled_modules_css ?? [], fn( $m ) => ! empty( $m['enabled'] ) )
		);

		foreach ( $shared_by_components as $key => $data ) {
			$modules = $data['modules'] ?? [];
			$widgets = $data['widgets'] ?? [];

			if (
				array_intersect( $modules, $enabled_module_slugs ) ||
				array_intersect( $widgets, $enabled_widget_slugs )
			) {
				$shared_styles_map[]         = [
					'modules'   => $modules,
					'widgets'   => $widgets,
					'file_name' => $data['file_name'],
					'context'   => $data['context'] ?? [ 'global' ],
				];
				$this->shared_loaded[ $key ] = true;
			}
		}

		$styles = [];

		foreach ( $shared_styles_map as $group ) {
			$modules = $group['modules'] ?? [];
			$widgets = $group['widgets'] ?? [];

			$has_enabled_module = array_intersect( $modules, $enabled_module_slugs );
			$has_enabled_widget = array_intersect( $widgets, $enabled_widget_slugs );

			if ( ! $has_enabled_module && ! $has_enabled_widget ) {
				continue;
			}

			foreach ( (array) $group['context'] as $ctx ) {
				$path = Fns::locate_asset( "{$this->dir}modules/{$group['file_name']}{$this->suffix}.css" );

				if ( $path ) {
					$styles[ $ctx ][] = $path;
				}
			}
		}

		return $styles;
	}

	/**
	 * Get shared Elementor widget styles based on enabled widgets.
	 *
	 * @return array
	 */
	protected function get_elementor_shared_widget_styles() {
		$shared_styles_map = $this->get_elementor_shared_styles_map();

		// Add global shared.
		$shared_by_components = $this->get_shared_style_components();
		$styles               = [];

		foreach ( $shared_by_components as $key => $data ) {
			if ( isset( $this->shared_loaded[ $key ] ) ) {
				continue;
			}

			if ( ! empty( $data['widgets'] ) && array_intersect( $data['widgets'], $this->enabled_el_widgets ) ) {
				$path = Fns::locate_asset( "{$this->dir}modules/{$data['file_name']}{$this->suffix}.css" );

				if ( $path ) {
					$styles[] = $path;
				}
			}
		}

		foreach ( $shared_styles_map as $group ) {
			if ( array_intersect( $group['widgets'], $this->enabled_el_widgets ) ) {
				$styles[] = Fns::locate_asset( "{$this->dir}frontend/elementor/{$group['file_name']}$this->suffix.css" );
			}
		}

		return array_unique( $styles );
	}

	/**
	 * Get shared Elementor widget styles based on enabled widgets.
	 *
	 * @return array
	 */
	protected function get_elementor_shared_widget_styles_by_context() {
		$shared_styles_map = $this->get_elementor_shared_styles_map();

		// Add global shared.
		$shared_by_components = $this->get_shared_style_components();
		$styles               = [];

		$enabled_widget_slugs = array_keys(
			array_filter(
				$this->enabled_widgets ?? [],
				fn( $widget ) => ! empty( $widget['enabled'] )
			)
		);

		foreach ( $shared_by_components as $key => $data ) {
			if ( isset( $this->shared_loaded[ $key ] ) ) {
				continue;
			}

			if (
				! empty( $data['widgets'] ) &&
				array_intersect( $data['widgets'], $enabled_widget_slugs )
			) {
				$contexts = $data['context'] ?? [ 'global' ];

				foreach ( (array) $contexts as $ctx ) {
					if ( 'general' === $ctx ) {
						$ctx = 'global';
					}

					$path = Fns::locate_asset( "{$this->dir}modules/{$data['file_name']}{$this->suffix}.css" );

					if ( $path ) {
						$styles[ $ctx ][] = $path;
					}
				}

				$this->shared_loaded[ $key ] = true;
			}
		}

		foreach ( $shared_styles_map as $group ) {
			if (
				! empty( $group['widgets'] ) &&
				array_intersect( $group['widgets'], $enabled_widget_slugs )
			) {
				$contexts = $group['context'] ?? [ 'global' ];

				if ( ! is_array( $contexts ) ) {
					$contexts = [ $contexts ];
				}

				foreach ( $contexts as $ctx ) {
					$path = Fns::locate_asset( "{$this->dir}frontend/elementor/{$group['file_name']}{$this->suffix}.css" );

					if ( $path ) {
						$styles[ $ctx ][] = $path;
					}
				}
			}
		}

		return $styles;
	}

	/**
	 * Get Elementor shared styles map.
	 *
	 * @return array
	 */
	private function get_elementor_shared_styles_map() {
		return apply_filters(
			'rtsb/optimizer/styles/elementor/shared',
			[
				[
					'widgets'   => [
						'products-grid',
						'products-list',
						'products-slider',
						'products-single-cateogory',
						'product-cateogories',
						'products-archive-catalog-custom',
						'advanced-heading',
						'dropcaps',
						'shopbuilder-button',
						'shopbuilder-cta',
						'shopbuilder-info-box',
						'shopbuilder-flip-box',
						'shopbuilder-pricing-table',
						'shopbuilder-counter',
						'shopbuilder-countdown',
						'shopbuilder-progress-bar',
						'image-accordion',
						'shopbuilder-faq',
						'logo-slider-and-grid',
						'testimonial',
						'team-member',
						'post-grid',
						'post-list',
						'upsells-product-custom',
						'upsells-products-slider-custom',
						'related-product-custom',
						'related-products-slider-custom',
						'cross-sells-custom',
						'cross-sells-custom-slider',
					],
					'file_name' => 'shared/el-grid',
					'context'   => [ 'global' ],
				],
				[
					'widgets'   => [
						'shopbuilder-button',
						'shopbuilder-cta',
						'shopbuilder-info-box',
						'shopbuilder-flip-box',
						'shopbuilder-pricing-table',
					],
					'file_name' => 'shared/shopbuilder-button',
					'context'   => [ 'global' ],
				],
				[
					'widgets'   => [
						'products-grid',
						'products-list',
						'products-slider',
						'products-single-cateogory',
						'product-cateogories',
						'products-archive-catalog-custom',
						'upsells-product-custom',
						'upsells-products-slider-custom',
						'related-product-custom',
						'related-products-slider-custom',
						'cross-sells-custom',
						'cross-sells-custom-slider',
					],
					'file_name' => 'shared/el-general-product',
					'context'   => [ 'global' ],
				],
				[
					'widgets'   => [
						'products-grid',
						'products-slider',
						'products-archive-catalog-custom',
					],
					'file_name' => 'shared/products-grid-slider',
					'context'   => [ 'global' ],
				],
				[
					'widgets'   => [
						'products-list',
						'products-archive-catalog-custom',
					],
					'file_name' => 'shared/products-list',
					'context'   => [ 'global' ],
				],
				[
					'widgets'   => [ 'post-grid', 'post-list' ],
					'file_name' => 'shared/post',
					'context'   => [ 'global' ],
				],
				[
					'widgets'   => [
						'products-archive-catalog',
						'products-archive-catalog-custom',
					],
					'file_name' => 'shared/products-archive',
					'context'   => [ 'shop' ],
				],
				[
					'widgets'   => [
						'product-title',
						'product-description',
						'product-short-description',
						'product-images',
						'product-onsale',
						'product-additional-info',
						'product-price',
						'product-meta',
						'product-categories',
						'product-rating',
						'product-tags',
						'product-sku',
						'product-stock',
						'actions-button',
						'product-add-to-cart',
						'product-share',
						'product-tabs',
						'product-reviews',
						'upsells-product',
						'related-product',
					],
					'file_name' => 'shared/single-product',
					'context'   => [ 'product' ],
				],
				[
					'widgets'   => [
						'cart-table',
						'cart-totals',
						'cross-sells',
					],
					'file_name' => 'shared/cart',
					'context'   => [ 'cart' ],
				],
			]
		);
	}

	/**
	 * Get enabled modules. Filterable.
	 *
	 * @return array
	 */
	protected function get_enabled_modules() {
		$module_list = Fns::get_modules_list();
		$enabled     = [];

		foreach ( $module_list as $slug => $info ) {
			if ( defined( 'RTWPVG_VERSION' ) && 'variation_gallery' === $slug ) {
				continue;
			}
			if ( defined( 'RTWPVS_VERSION' ) && 'variation_swatches' === $slug ) {
				continue;
			}
			if ( ! empty( $info['active'] ) ) {
				$enabled[] = str_replace( '_', '-', sanitize_key( $slug ) );
			}
		}

		return $enabled;
	}

	/**
	 * Get enabled modules JS with context.
	 *
	 * @return array
	 */
	protected function get_enabled_modules_js_with_context() {
		$module_list = Fns::get_modules_list();
		$modules     = [];
		$context     = apply_filters(
			'rtsb/optimizer/modules/js_context',
			[
				'checkout_fields_editor' => [ 'checkout' ],
				'shopify_checkout'       => [ 'checkout' ],
			]
		);

		foreach ( $module_list as $slug => $info ) {
			if ( defined( 'RTWPVG_VERSION' ) && 'variation_gallery' === $slug ) {
				continue;
			}
			if ( defined( 'RTWPVS_VERSION' ) && 'variation_swatches' === $slug ) {
				continue;
			}
			$clean_slug = str_replace( '_', '-', sanitize_key( $slug ) );
			$is_enabled = isset( $info['active'] ) && 'on' === $info['active'];

			$modules[ $clean_slug ] = [
				'enabled'  => $is_enabled,
				'category' => ! empty( $context[ $slug ] ) ? $context[ $slug ] : [ 'global' ],
			];
		}

		return $modules;
	}

	/**
	 * Get enabled modules CSS with context.
	 *
	 * @return array
	 */
	protected function get_enabled_modules_css_with_context() {
		$module_list = Fns::get_modules_list();
		$modules     = [];
		$context     = apply_filters(
			'rtsb/optimizer/modules/css_context',
			[
				'checkout_fields_editor' => [ 'checkout' ],
				'shopify_checkout'       => [ 'checkout' ],
			]
		);

		foreach ( $module_list as $slug => $info ) {
			if ( defined( 'RTWPVG_VERSION' ) && 'variation_gallery' === $slug ) {
				continue;
			}
			if ( defined( 'RTWPVS_VERSION' ) && 'variation_swatches' === $slug ) {
				continue;
			}
			$clean_slug = str_replace( '_', '-', sanitize_key( $slug ) );
			$is_enabled = isset( $info['active'] ) && 'on' === $info['active'];

			$modules[ $clean_slug ] = [
				'enabled'  => $is_enabled,
				'category' => ! empty( $context[ $slug ] ) ? $context[ $slug ] : [ 'global' ],
			];
		}

		return $modules;
	}

	/**
	 * Get enabled modules.
	 *
	 * @return array
	 */
	protected function get_enabled_el_widgets() {
		$widget_data = Fns::get_widgets_list();
		$enabled     = [];

		foreach ( $widget_data as $slug => $info ) {
			if ( isset( $info['active'] ) && 'on' === $info['active'] ) {
				$enabled[] = str_replace( '_', '-', sanitize_key( $slug ) );
			}
		}

		return $enabled;
	}

	/**
	 * Get enabled widgets with categories.
	 *
	 * @return array
	 */
	protected function get_enabled_widgets_with_context() {
		$widget_list = Fns::get_widgets_list();
		$widgets     = [];

		foreach ( $widget_list as $slug => $info ) {
			$clean_slug = str_replace( '_', '-', sanitize_key( $slug ) );
			$is_enabled = isset( $info['active'] ) && 'on' === $info['active'];

			$widgets[ $clean_slug ] = [
				'enabled'  => $is_enabled,
				'category' => ! empty( $widget_list[ $slug ]['category'] ) ? $widget_list[ $slug ]['category'] : 'global',
			];
		}

		return $widgets;
	}

	/**
	 * Populate JS/CSS file arrays based on active modules.
	 *
	 * @return void
	 */
	protected function collect_assets() {
		static $ran = false;

		if ( $ran ) {
			return;
		}

		$ran = true;

		$this->js_files  = $this->contextual_loading ? $this->get_scripts_by_context() : array_unique( $this->get_scripts() );
		$this->css_files = $this->contextual_loading ? $this->get_styles_by_context() : array_unique( $this->get_styles() );
	}

	/**
	 * Build and return the final bundled and minified CSS and JS.
	 *
	 * @return array
	 */
	public function get_bundled_assets() {
		if ( null !== $this->bundled_assets ) {
			return $this->bundled_assets;
		}

		$this->collect_assets();

		$this->bundled_assets = [
			'js'  => $this->contextual_loading ? $this->get_bundled_js_by_context() : $this->get_bundled_js(),
			'css' => $this->contextual_loading ? $this->get_bundled_css_by_context() : $this->get_bundled_css(),
		];

		return $this->bundled_assets;
	}

	/**
	 * Load optimized assets and return them by type
	 *
	 * @param string $type 'css' or 'js'.
	 *
	 * @return array
	 */
	public function load_optimized_assets( $type = 'css' ) {
		if ( isset( self::$loaded_types[ $type ] ) ) {
			return [];
		}

		$assets  = [];
		$bundled = $this->get_bundled_assets();
		$context = Fns::detect_context();

		if ( $this->contextual_loading ) {
			if ( 'js' === $type && ! empty( $bundled['js'] ) ) {
				$ctx = isset( $bundled['js'][ $context ] ) ? $context : 'global';
				if ( $ctx ) {
					$assets = (array) $bundled['js'][ $ctx ];
				}
			}
			if ( 'css' === $type && ! empty( $bundled['css'] ) ) {
				$ctx = isset( $bundled['css'][ $context ] ) ? $context : 'global';
				if ( $ctx ) {
					$assets = (array) $bundled['css'][ $ctx ];
				}
			}
		} else {
			if ( 'js' === $type && ! empty( $bundled['js'] ) ) {
				$assets = (array) $this->bundled_assets['js'];
			}

			if ( 'css' === $type && ! empty( $bundled['css'] ) ) {
				$assets = (array) $this->bundled_assets['css'];
			}
		}

		self::$loaded_types[ $type ] = true;

		return $assets;
	}

	/**
	 * Get bundled JS, with caching to prevent multiple builds.
	 *
	 * @return array|null
	 */
	protected function get_bundled_js() {
		if ( null !== $this->bundled_js ) {
			return $this->bundled_js;
		}

		if ( empty( $this->js_files ) ) {
			return null;
		}

		$handle  = 'rtsb-bundled';
		$bundler = new AssetBundler( $handle, $this->js_files, 'js' );
		$src     = $bundler->build();
		$deps    = [ 'jquery', 'rtsb-tipsy' ];

		$builder_page_id = BuilderFns::builder_page_id_by_page();

		if ( Fns::is_elementor_page( $builder_page_id ) ) {
			$deps[] = 'imagesloaded';
		}

		$this->bundled_js = [
			'handle' => $handle,
			'src'    => $src,
			'deps'   => apply_filters( 'rtsb/optimizer/scripts/deps', $deps ),
			'footer' => true,
		];

		return $this->bundled_js;
	}

	/**
	 * Get bundled CSS, with caching to prevent multiple builds.
	 *
	 * @return array|null
	 */
	protected function get_bundled_css() {
		if ( null !== $this->bundled_css ) {
			return $this->bundled_css;
		}

		if ( empty( $this->css_files ) ) {
			return null;
		}

		$bundler = new AssetBundler( 'rtsb-bundled', $this->css_files, 'css' );
		$src     = $bundler->build();

		$this->bundled_css = [
			'handle' => 'rtsb-bundled',
			'src'    => $src,
		];

		return $this->bundled_css;
	}

	/**
	 * Get bundled CSS by context
	 *
	 * @return array|null
	 */
	public function get_bundled_css_by_context() {
		$css_files_by_context = $this->get_contextual_assets( 'css' );
		$bundled_contexts     = [];

		foreach ( $css_files_by_context as $context => $files ) {
			if ( empty( $files ) ) {
				continue;
			}

			$bundler = new AssetBundler( "rtsb-bundled-$context", $files, 'css' );
			$src     = $bundler->build();

			$bundled_contexts[ $context ] = [
				'handle' => "rtsb-bundled-$context",
				'src'    => $src,
			];
		}

		return $bundled_contexts;
	}

	/**
	 * Forcefully regenerate bundled JS and CSS assets.
	 *
	 * @return array
	 */
	public function regenerate_bundles() {
		$this->bundled_js  = null;
		$this->bundled_css = null;
		$this->js_files    = [];
		$this->css_files   = [];

		$this->collect_assets();

		return [
			'js'  => $this->contextual_loading ? $this->get_bundled_js_by_context() : $this->get_bundled_js(),
			'css' => $this->contextual_loading ? $this->get_bundled_css_by_context() : $this->get_bundled_css(),
		];
	}

	/**
	 * Get context.
	 *
	 * @return object
	 */
	private function context() {
		return ( function_exists( 'rtsbpro' ) && rtsb()->has_pro() ) ? rtsbpro() : rtsb();
	}

	/**
	 * Get shared style mappings for modules and widgets.
	 *
	 * @return array
	 */
	private function get_shared_style_components() {
		return apply_filters(
			'rtsb/optimizer/styles/shared/components',
			[
				'checkout' => [
					'file_name' => 'shared/checkout',
					'modules'   => [ 'quick-checkout', 'shopify-checkout' ],
					'widgets'   => [
						'billing-form',
						'shipping-form',
						'order-notes',
						'order-review',
						'checkout-payment',
						'coupon-form',
						'checkout-login-form',
						'shipping-method',
					],
					'context'   => [ 'global' ],
				],
				'slider'   => [
					'file_name' => 'shared/slider-core',
					'modules'   => [ 'variation-gallery' ],
					'widgets'   => [
						'products-slider',
						'team-member',
						'upsells-products-slider-custom',
						'related-products-slider-custom',
						'cross-sells-custom-slider',
						'hero-slider',
					],
					'context'   => [ 'global' ],
				],
			]
		);
	}
}