<?php
/**
 * EPPRO_Asset_Manager
 *
 * Registers all plugin assets (global + per-widget).
 * Widgets declare their asset handles via get_style_depends() /
 * get_script_depends(), so Elementor only enqueues them when the
 * widget is actually present on a page — zero overhead on pages
 * that use none of the widgets.
 *
 * @package AdMoreWidgetsSuite
 * @since   1.0.0
 */

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

class EPPRO_Asset_Manager {

    /** CSS/JS version string — busts cache on plugin update. */
    private static string $ver;

    public static function init(): void {
        self::$ver = EPPRO_VERSION;

        // Register handles early on every page so get_style/script_depends()
        // can reference them before Elementor renders the widget list.
        add_action( 'wp_enqueue_scripts',                        [ __CLASS__, 'register_all'   ], 5 );
        add_action( 'elementor/frontend/after_register_styles',  [ __CLASS__, 'register_all'   ] );
        add_action( 'elementor/frontend/after_register_scripts', [ __CLASS__, 'register_all'   ] );

        // Only enqueue the global CSS/JS on pages that actually use Elementor.
        // elementor/frontend/after_enqueue_scripts fires exactly once per page
        // where Elementor frontend renders content.
        add_action( 'elementor/frontend/after_enqueue_scripts',  [ __CLASS__, 'enqueue_global' ] );

        // Ensure global assets are also loaded inside the Elementor editor preview.
        add_action( 'elementor/preview/enqueue_styles',  [ __CLASS__, 'enqueue_global' ] );

        // Inject EPP badge/watermark CSS into the Elementor editor panel.
        add_action( 'elementor/editor/after_enqueue_styles', [ __CLASS__, 'enqueue_editor_badge' ] );

        // Fresh nonces for pages served from a full-page cache (see EPPRO.refreshNonce in frontend.js).
        add_action( 'wp_ajax_eppro_refresh_nonce',        [ __CLASS__, 'ajax_refresh_nonce' ] );
        add_action( 'wp_ajax_nopriv_eppro_refresh_nonce', [ __CLASS__, 'ajax_refresh_nonce' ] );
    }

    /**
     * Return a fresh nonce for one of the plugin's public AJAX actions.
     *
     * Cached pages keep serving nonces that expire after 12–24 hours; the
     * frontend scripts call this once after a 403 and retry. It only issues
     * nonces for a fixed list of actions and changes nothing on the site.
     */
    public static function ajax_refresh_nonce(): void {
        $actions = [
            'form'         => 'eppro_form_nonce',
            'search'       => 'eppro_live_search',
            'post_grid'    => 'eppro_post_grid',
            'popup_view'   => 'eppro_popup_view',
            'woo_products' => 'eppro_woo_products',
        ];

        // phpcs:ignore WordPress.Security.NonceVerification.Missing -- This endpoint issues nonces and performs no action.
        $kind = isset( $_POST['kind'] ) ? sanitize_key( wp_unslash( $_POST['kind'] ) ) : '';
        if ( ! isset( $actions[ $kind ] ) ) {
            wp_send_json_error( [], 400 );
        }

        nocache_headers();
        wp_send_json_success( [ 'nonce' => wp_create_nonce( $actions[ $kind ] ) ] );
    }

    /**
     * One badge style for the whole Elementor panel: the "EPP" mark on the
     * plugin's widget tiles and on every control section the plugin adds
     * (see EPPRO_Elementor_Helper::panel_label()).
     */
    public static function enqueue_editor_badge(): void {
        $css = '
.eppro-panel-badge,
#elementor-panel-category-eppro-elements .elementor-element-wrapper::after {
    display: inline-block;
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: .5px;
    padding: 1px 6px;
    border-radius: 20px;
    vertical-align: middle;
    box-shadow: 0 1px 4px rgba(124, 58, 237, .35);
}
.eppro-panel-badge { margin-inline-start: 4px; }
#elementor-panel-category-eppro-elements .elementor-element-wrapper {
    position: relative;
    overflow: visible !important;
}
#elementor-panel-category-eppro-elements .elementor-element-wrapper::after {
    content: "EPP";
    position: absolute;
    top: 5px;
    inset-inline-end: 5px;
    pointer-events: none;
    z-index: 1;
}
';
        wp_add_inline_style( 'elementor-editor', $css );
    }

    // -------------------------------------------------------------------------
    // Register — called early so handles exist before Elementor renders
    // -------------------------------------------------------------------------

    public static function register_all(): void {
        static $done = false;
        if ( $done ) return;
        $done = true;

        /* ── Swiper: bundled local copy (assets/vendor/swiper/) ──────────────
         * No CDN fallback — WordPress.org plugin guidelines prohibit loading
         * scripts from external CDNs without explicit user consent.
         * Files: swiper-bundle.min.css and swiper-bundle.min.js
         * Source: https://swiperjs.com (MIT licence, GPL-compatible)
         * ─────────────────────────────────────────────────────────────────── */
        if ( ! wp_style_is( 'swiper', 'registered' ) ) {
            $local_css_path = EPPRO_PATH . 'assets/vendor/swiper/swiper-bundle.min.css';
            if ( file_exists( $local_css_path ) ) {
                wp_register_style( 'swiper', EPPRO_URL . 'assets/vendor/swiper/swiper-bundle.min.css', [], '11.1' );
            } else {
                add_action( 'admin_notices', static function () {
                    echo '<div class="notice notice-error"><p><strong>Essential Pro Pack:</strong> ' .
                         esc_html__( 'Missing vendor file: assets/vendor/swiper/swiper-bundle.min.css. Carousel widgets may not display correctly. Please reinstall the plugin.', 'admore-widgets-suite' ) .
                         '</p></div>';
                } );
                wp_register_style( 'swiper', false, [], '11.1' );
            }
        }
        if ( ! wp_script_is( 'swiper', 'registered' ) ) {
            $local_js_path = EPPRO_PATH . 'assets/vendor/swiper/swiper-bundle.min.js';
            if ( file_exists( $local_js_path ) ) {
                wp_register_script( 'swiper', EPPRO_URL . 'assets/vendor/swiper/swiper-bundle.min.js', [], '11.1', true );
            } else {
                add_action( 'admin_notices', static function () {
                    echo '<div class="notice notice-error"><p><strong>Essential Pro Pack:</strong> ' .
                         esc_html__( 'Missing vendor file: assets/vendor/swiper/swiper-bundle.min.js. Carousel widgets will not function. Please reinstall the plugin.', 'admore-widgets-suite' ) .
                         '</p></div>';
                } );
                wp_register_script( 'swiper', false, [], '11.1', true );
            }
        }

        /* ── Global shared (always loaded on any EPP page) ── */
        wp_register_style(
            'eppro-global',
            EPPRO_URL . 'assets/css/frontend.css',
            [],
            eppro_asset_ver( 'assets/css/frontend.css' )
        );

        wp_register_script(
            'eppro-main-script',
            EPPRO_URL . 'assets/js/frontend.js',
            [ 'jquery' ],
            eppro_asset_ver( 'assets/js/frontend.js' ),
            true
        );
        // Localise at registration so EPPRO is available wherever the script is printed.
        self::localize_script();

        /* ── Per-widget CSS ── */
        self::register_widget_style( 'eppro-btn',             'widgets/advanced-button/assets/css/style.css' );
        self::register_widget_style( 'eppro-adv-faq',         'widgets/advanced-faq/assets/css/style.css' );
        self::register_widget_style( 'eppro-form',            'widgets/form/assets/css/style.css' );
        self::register_widget_style( 'eppro-mega-menu',       'widgets/mega-menu/assets/css/style.css' );
        self::register_widget_style( 'eppro-advanced-slider', 'widgets/advanced-slider/assets/css/style.css', [ 'swiper' ] );
        self::register_widget_style( 'eppro-advanced-search', 'widgets/advanced-search/assets/css/style.css' );
        self::register_widget_style( 'eppro-breadcrumbs',     'widgets/breadcrumbs/assets/css/style.css' );
        self::register_widget_style( 'eppro-advanced-tabs',    'widgets/advanced-tabs/assets/css/style.css' );
        self::register_widget_style( 'eppro-pricing-table',    'widgets/pricing-table/assets/css/style.css' );
        self::register_widget_style( 'eppro-gallery-pro',      'widgets/gallery-pro/assets/css/style.css' );
        self::register_widget_style( 'eppro-post-grid',         'widgets/post-grid/assets/css/style.css' );
        self::register_widget_style( 'eppro-off-canvas',        'widgets/off-canvas/assets/css/style.css' );
        self::register_widget_style( 'eppro-stats-counter',     'widgets/stats-counter/assets/css/style.css' );
        self::register_widget_style( 'eppro-before-after',      'widgets/before-after/assets/css/style.css' );
        self::register_widget_style( 'eppro-logo-grid',         'widgets/logo-grid/assets/css/style.css', [ 'swiper' ] );
        self::register_widget_style( 'eppro-team-member',       'widgets/team-member/assets/css/style.css' );
        self::register_widget_style( 'eppro-icon-box',          'widgets/icon-box/style.css' );
        self::register_widget_style( 'eppro-image-box',         'widgets/image-box/style.css' );
        self::register_widget_style( 'eppro-timeline',          'widgets/timeline/style.css' );
        /* ── New widget styles ── */
        self::register_widget_style( 'eppro-fancy-heading',    'widgets/fancy-heading/style.css' );
        self::register_widget_style( 'eppro-image-carousel',   'widgets/image-carousel/style.css', [ 'swiper' ] );
        self::register_widget_style( 'eppro-lottie',           'widgets/lottie/style.css' );
        self::register_widget_style( 'eppro-pie-chart',        'widgets/pie-chart/style.css' );
        self::register_widget_style( 'eppro-author-box',       'widgets/author-box/style.css' );
        self::register_widget_style( 'eppro-related-posts',    'widgets/related-posts/style.css' );
        self::register_widget_style( 'eppro-google-map',       'widgets/google-map/style.css' );
        self::register_widget_style( 'eppro-woo-products',     'widgets/woo-products/style.css' );
        self::register_widget_style( 'eppro-woo-mini-cart',    'widgets/woo-mini-cart/style.css' );
        self::register_widget_style( 'eppro-woo-add-to-cart',  'widgets/woo-add-to-cart/style.css' );
        self::register_widget_style( 'eppro-post-comments',       'widgets/post-comments/style.css' );
        self::register_widget_style( 'eppro-site-logo',            'widgets/site-logo/style.css' );
        self::register_widget_style( 'eppro-nav-menu',             'widgets/nav-menu/style.css' );
        self::register_widget_style( 'eppro-site-title',           'widgets/site-title/style.css' );
        self::register_widget_style( 'eppro-site-tagline',         'widgets/site-tagline/style.css' );
        self::register_widget_style( 'eppro-post-title',           'widgets/post-title/style.css' );
        self::register_widget_style( 'eppro-post-content',         'widgets/post-content/style.css' );
        self::register_widget_style( 'eppro-post-featured-image',  'widgets/post-featured-image/style.css' );
        self::register_widget_style( 'eppro-post-excerpt',         'widgets/post-excerpt/style.css' );
        self::register_widget_style( 'eppro-post-meta',            'widgets/post-meta/style.css' );
        self::register_widget_style( 'eppro-archive-title',        'widgets/archive-title/style.css' );
        self::register_widget_style( 'eppro-archive-description',  'widgets/archive-description/style.css' );
        self::register_widget_style( 'eppro-post-navigation',      'widgets/post-navigation/style.css' );
        /* ── Previously unregistered widget styles ── */
        self::register_widget_style( 'eppro-animated-heading',     'widgets/animated-heading/assets/css/style.css' );
        self::register_widget_style( 'eppro-countdown-timer',      'widgets/countdown-timer/assets/css/style.css' );
        self::register_widget_style( 'eppro-flip-box',             'widgets/flip-box/style.css' );
        self::register_widget_style( 'eppro-hotspot',              'widgets/hotspot/style.css' );
        self::register_widget_style( 'eppro-price-list',           'widgets/price-list/style.css' );
        self::register_widget_style( 'eppro-progress-bar',         'widgets/progress-bar/style.css' );
        self::register_widget_style( 'eppro-social-icons',         'widgets/social-icons/style.css' );
        self::register_widget_style( 'eppro-testimonial',          'widgets/testimonial/assets/css/style.css', [ 'swiper' ] );
        self::register_widget_style( 'eppro-video',                'widgets/video/style.css' );

        /* ── Per-widget JS (loaded on-demand via get_script_depends) ── */
        wp_register_script(
            'eppro-form-script',
            EPPRO_URL . 'widgets/form/assets/js/form.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/form/assets/js/form.js' ),
            true
        );

        wp_register_script(
            'eppro-mega-menu-script',
            EPPRO_URL . 'widgets/mega-menu/assets/js/mega-menu.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/mega-menu/assets/js/mega-menu.js' ),
            true
        );

        wp_register_script(
            'eppro-faq-script',
            EPPRO_URL . 'widgets/advanced-faq/assets/js/faq.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/advanced-faq/assets/js/faq.js' ),
            true
        );

        wp_register_script(
            'eppro-extensions',
            EPPRO_URL . 'assets/js/extensions.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'assets/js/extensions.js' ),
            true
        );

        wp_register_script(
            'eppro-advanced-slider-script',
            EPPRO_URL . 'widgets/advanced-slider/assets/js/slider.js',
            [ 'jquery', 'swiper', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/advanced-slider/assets/js/slider.js' ),
            true
        );

        wp_register_script(
            'eppro-advanced-search-script',
            EPPRO_URL . 'widgets/advanced-search/assets/js/search.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/advanced-search/assets/js/search.js' ),
            true
        );

        wp_register_script(
            'eppro-advanced-tabs',
            EPPRO_URL . 'widgets/advanced-tabs/assets/js/tabs.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/advanced-tabs/assets/js/tabs.js' ),
            true
        );

        wp_register_script(
            'eppro-pricing-table-script',
            EPPRO_URL . 'widgets/pricing-table/assets/js/pricing.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/pricing-table/assets/js/pricing.js' ),
            true
        );

        wp_register_script(
            'eppro-gallery-pro-script',
            EPPRO_URL . 'widgets/gallery-pro/assets/js/gallery.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/gallery-pro/assets/js/gallery.js' ),
            true
        );

        wp_register_script(
            'eppro-post-grid-script',
            EPPRO_URL . 'widgets/post-grid/assets/js/post-grid.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/post-grid/assets/js/post-grid.js' ),
            true
        );

        wp_register_script(
            'eppro-off-canvas',
            EPPRO_URL . 'widgets/off-canvas/assets/js/script.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/off-canvas/assets/js/script.js' ),
            true
        );

        wp_register_script(
            'eppro-stats-counter',
            EPPRO_URL . 'widgets/stats-counter/assets/js/script.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/stats-counter/assets/js/script.js' ),
            true
        );

        wp_register_script(
            'eppro-before-after',
            EPPRO_URL . 'widgets/before-after/assets/js/script.js',
            [ 'jquery', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/before-after/assets/js/script.js' ),
            true
        );

        wp_register_script(
            'eppro-logo-grid',
            EPPRO_URL . 'widgets/logo-grid/assets/js/script.js',
            [ 'jquery', 'swiper', 'eppro-main-script' ],
            eppro_asset_ver( 'widgets/logo-grid/assets/js/script.js' ),
            true
        );

        wp_register_script(
            'eppro-timeline-script',
            EPPRO_URL . 'widgets/timeline/script.js',
            [],
            eppro_asset_ver( 'widgets/timeline/script.js' ),
            true
        );

        /* ── New widget scripts ── */
        wp_register_script( 'eppro-image-carousel-script',   EPPRO_URL . 'widgets/image-carousel/script.js',   [ 'swiper' ],                   eppro_asset_ver( 'widgets/image-carousel/script.js' ), true );
        // lottie-web: MIT licensed, bundled locally (see assets/vendor/lottie/README.txt)
        wp_register_script( 'lottie-web',              EPPRO_URL . 'assets/vendor/lottie/lottie.min.js',  [],             '5.12.2',      true );
        wp_register_script( 'eppro-lottie-script',           EPPRO_URL . 'widgets/lottie/script.js',           [ 'lottie-web' ],               eppro_asset_ver( 'widgets/lottie/script.js' ), true );
        wp_register_script( 'eppro-pie-chart-script',        EPPRO_URL . 'widgets/pie-chart/script.js',        [],                             eppro_asset_ver( 'widgets/pie-chart/script.js' ), true );
        wp_register_script( 'eppro-woo-mini-cart-script',     EPPRO_URL . 'widgets/woo-mini-cart/script.js',     [ 'jquery' ],                   eppro_asset_ver( 'widgets/woo-mini-cart/script.js' ), true );
        wp_register_script( 'eppro-nav-menu-script',          EPPRO_URL . 'widgets/nav-menu/script.js',          [ 'jquery' ],                   eppro_asset_ver( 'widgets/nav-menu/script.js' ), true );
        wp_register_script( 'eppro-team-member-script',       EPPRO_URL . 'widgets/team-member/assets/js/script.js', [],                            eppro_asset_ver( 'widgets/team-member/assets/js/script.js' ), true );
        wp_register_script( 'eppro-woo-products-script',      EPPRO_URL . 'widgets/woo-products/script.js',      [ 'jquery', 'eppro-main-script' ], eppro_asset_ver( 'widgets/woo-products/script.js' ), true );
        wp_localize_script( 'eppro-woo-products-script', 'epproWooProducts', [
            'close'   => __( 'Close', 'admore-widgets-suite' ),
            'loading' => __( 'Loading…', 'admore-widgets-suite' ),
            'error'   => __( 'Sorry, this product could not be loaded.', 'admore-widgets-suite' ),
        ] );
        /* ── Previously unregistered widget scripts ── */
        wp_register_script( 'eppro-animated-heading-script',  EPPRO_URL . 'widgets/animated-heading/assets/js/animated-heading.js', [],           eppro_asset_ver( 'widgets/animated-heading/assets/js/animated-heading.js' ), true );
        wp_register_script( 'eppro-countdown-timer-script',   EPPRO_URL . 'widgets/countdown-timer/assets/js/countdown.js',        [],           eppro_asset_ver( 'widgets/countdown-timer/assets/js/countdown.js' ), true );
        wp_register_script( 'eppro-progress-bar-script',      EPPRO_URL . 'widgets/progress-bar/script.js',                        [],           eppro_asset_ver( 'widgets/progress-bar/script.js' ), true );
        wp_register_script( 'eppro-testimonial-script',       EPPRO_URL . 'widgets/testimonial/assets/js/testimonial.js',  [ 'jquery', 'swiper' ], eppro_asset_ver( 'widgets/testimonial/assets/js/testimonial.js' ), true );
        wp_register_script( 'eppro-hotspot-script',           EPPRO_URL . 'widgets/hotspot/script.js',                     [ 'jquery' ],           eppro_asset_ver( 'widgets/hotspot/script.js' ), true );
        wp_register_script( 'eppro-video-script',             EPPRO_URL . 'widgets/video/script.js',                       [ 'jquery' ],           eppro_asset_ver( 'widgets/video/script.js' ), true );

        // Defer scroll-triggered / visual-enhancement scripts (WP 6.3+ strategy API).
        // These are purely progressive-enhancement — deferring them frees the main
        // thread earlier without any visible impact.
        $defer_scripts = [
            'eppro-stats-counter',
            'eppro-pie-chart-script',
            'eppro-lottie-script',
            'eppro-timeline-script',
            'eppro-team-member-script',
        ];
        foreach ( $defer_scripts as $handle ) {
            wp_script_add_data( $handle, 'strategy', 'defer' );
        }

    }

    // -------------------------------------------------------------------------
    // Enqueue global assets (only on pages where Elementor frontend renders)
    // -------------------------------------------------------------------------

    public static function enqueue_global(): void {
        static $done = false;
        if ( $done ) return;
        $done = true;

        self::register_all();
        wp_enqueue_style( 'eppro-global' );
        wp_enqueue_script( 'eppro-main-script' );
        wp_enqueue_script( 'eppro-extensions' );
        self::add_customizer_inline_css();
    }

    // -------------------------------------------------------------------------
    // Helpers
    // -------------------------------------------------------------------------

    private static function register_widget_style( string $handle, string $relative_path, array $deps = [] ): void {
        $full_deps = array_merge( [ 'eppro-global' ], $deps );
        wp_register_style( $handle, EPPRO_URL . $relative_path, $full_deps, eppro_asset_ver( $relative_path ) );
    }

    /**
     * Public data for the frontend. Never add plugin settings here: this is
     * printed on every page, and the settings contain the CAPTCHA secret key.
     */
    private static function localize_script(): void {
        wp_localize_script( 'eppro-main-script', 'EPPRO', [
            'ajaxurl' => admin_url( 'admin-ajax.php' ),
            'homeUrl' => trailingslashit( home_url() ),
        ] );
    }

    private static function add_customizer_inline_css(): void {
        $custom = class_exists( 'EPPRO_Customizer' ) ? EPPRO_Customizer::get_settings() : [];
        if ( empty( $custom ) ) return;

        $css = ':root{';
        $map = [
            'input_bg'    => '--eppro-input-bg',
            'input_color' => '--eppro-input-color',
            'btn_bg'      => '--eppro-btn-bg',
            'btn_color'   => '--eppro-btn-color',
            'card_bg'     => '--eppro-card-bg',
        ];
        foreach ( $map as $key => $var ) {
            if ( ! empty( $custom[ $key ] ) ) {
                $css .= $var . ':' . esc_attr( $custom[ $key ] ) . ';';
            }
        }
        if ( ! empty( $custom['radius'] ) ) {
            $css .= '--eppro-radius:' . intval( $custom['radius'] ) . 'px;';
        }
        $css .= '}';
        wp_add_inline_style( 'eppro-global', wp_strip_all_tags( $css ) );
    }
}