<?php
defined('ABSPATH') || exit;

trait AKSRT_Scripts_Part_2 {


    /**
     * 前端 debug 上报入口（仅在 WP_DEBUG 模式下写日志）
     */
    public function handle_frontend_debug(): void {
        check_ajax_referer('aksrt_public_nonce', 'nonce');
        if (!defined('WP_DEBUG') || !WP_DEBUG) {
            wp_send_json_success(['ignored' => true]);
        }
        $ctx = [
            'source' => isset($_POST['source']) ? sanitize_text_field(wp_unslash($_POST['source'])) : 'frontend',
            'event'  => isset($_POST['event']) ? sanitize_text_field(wp_unslash($_POST['event'])) : 'unknown',
            'page'   => isset($_POST['page']) ? esc_url_raw(wp_unslash($_POST['page'])) : '',
            'text'   => isset($_POST['text']) ? sanitize_text_field(wp_unslash($_POST['text'])) : '',
            'size'   => isset($_POST['size']) ? (int) wp_unslash($_POST['size']) : 0,
            'error'  => isset($_POST['error']) ? sanitize_text_field(wp_unslash($_POST['error'])) : '',
        ];
        $this->debug_log('frontend debug event', $ctx);
        wp_send_json_success(['logged' => true]);
    }

    /**
     * Passive event listener polyfill — 全局加载，消除 Chrome Violation 警告
     */
    public function enqueue_passive_polyfill(): void {
        wp_enqueue_script(
            'aksrt-passive-events',
            get_template_directory_uri() . '/assets/js/passive-events.js',
            [],
            AKSRT_VERSION,
            false
        );
    }

    /**
     * 加载后台资源 — 仅在 AKSRT 设置页面加载（与前端样式完全隔离）
     */
    public function enqueue_admin($hook): void {
        // 只在 AKSRT 设置页面 (SPA 容器) 加载
        $screen = get_current_screen();
        if (!$screen || $screen->base !== 'toplevel_page_aksrt-settings') {
            return;
        }

        // Admin 专用面板样式 — 独立于前端，不受前端 CSS 影响
        wp_enqueue_style(
            'aksrt-admin-panel',
            AKSRT_URI . '/assets/css/admin/admin-panel.css',
            [],           // 无依赖，不加载任何前端样式
            AKSRT_VERSION
        );

        // 注意: SPA 主资源 (Vue3 build) 由 AKSRT_Admin::enqueue_admin_assets() 负责加载
    }

    /**
     * 输出运行时 CSS 变量覆盖
     *
     * 仅注入用户可在后台配置的覆盖值（logo / favicon / primary），
     * 主体宽度统一使用固定 token：1280 / 1080 / 300。
     */
    public function inline_css_vars(): void {
        (new AKSRT_Inline_Style_Builder())->output();
    }

    /**
     * 输出自定义头部/底部代码
     */
    public function output_custom_codes(): void {
        (new AKSRT_Custom_Code_Renderer())->output_header();
    }

    public function output_loading_overlay(): void {
        (new AKSRT_Loading_Overlay_Renderer())->output();
    }

    /**
     * 输出自定义底部代码
     */
    public function output_custom_footer_codes(): void {
        (new AKSRT_Custom_Code_Renderer())->output_footer();
    }

    /**
     * Body 类增强
     */
    public function body_classes(array $classes): array {
        if (is_front_page()) {
            $classes[] = 'front-page';
        }
        if (function_exists('aksrt_is_fixed_homepage_request') && aksrt_is_fixed_homepage_request()) {
            $classes[] = 'aksrt-homepage-layout';
            $classes[] = 'aksrt-homepage-active';
        }
        if (is_singular()) {
            $classes[] = 'single-post-' . get_the_ID();
        }
        if (is_archive()) {
            $classes[] = 'archive-page';
        }
        if ((function_exists('aksrt_is_user_center_page') && aksrt_is_user_center_page())
            || (function_exists('aksrt_is_user_home_page') && aksrt_is_user_home_page())
            || get_query_var('user_nicename')) {
            $classes[] = 'aksrt-profile';
        }
        // 区分本人中心与公开主页的 body class
        if (function_exists('aksrt_is_user_center_page') && aksrt_is_user_center_page()) {
            $classes[] = 'aksrt-user-center';
        }
        if (function_exists('aksrt_is_user_home_page') && aksrt_is_user_home_page()) {
            $classes[] = 'aksrt-user-home';
        }
        if (function_exists('aksrt_is_auth_page_request') && aksrt_is_auth_page_request()) {
            $classes[] = 'auth-page';
        }

        return $classes;
    }

    /**
     * 搜索历史同步（登录用户）
     */
    public function handle_search_history(): void {
        check_ajax_referer('aksrt_public_nonce', 'nonce');

        $user_id = get_current_user_id();
        if (!$user_id) {
            wp_send_json_error(['message' => '未登录'], 401);
        }

        $mode = isset($_POST['mode']) ? sanitize_key(wp_unslash($_POST['mode'])) : 'get';
        $meta_key = 'aksrt_search_history';

        if ($mode === 'save') {
            $raw = isset($_POST['items']) ? wp_unslash($_POST['items']) : '[]';
            $items = json_decode($raw, true);
            if (!is_array($items)) {
                $items = [];
            }
            $clean = [];
            foreach (array_slice($items, 0, 20) as $item) {
                if (!is_array($item) || empty($item['keyword'])) {
                    continue;
                }
                $clean[] = [
                    'keyword' => sanitize_text_field($item['keyword']),
                    'type'    => sanitize_key($item['type'] ?? 'post'),
                ];
            }
            update_user_meta($user_id, $meta_key, $clean);
            wp_send_json_success(['items' => $clean]);
        }

        $saved = get_user_meta($user_id, $meta_key, true);
        wp_send_json_success(['items' => is_array($saved) ? $saved : []]);
    }

    /**
     * 搜索建议（实时搜索提示）
     */
    public function handle_search_suggestions(): void {
        check_ajax_referer('aksrt_public_nonce', 'nonce');

        $q    = isset($_POST['q']) ? sanitize_text_field(wp_unslash($_POST['q'])) : '';
        $type = isset($_POST['type']) ? sanitize_key(wp_unslash($_POST['type'])) : 'post';

        if (mb_strlen($q) < 2) {
            wp_send_json_success(['items' => []]);
        }

        $items = [];

        if ($type === 'post' || $type === '') {
            $posts = get_posts([
                'post_type'      => 'post',
                'post_status'    => 'publish',
                's'              => $q,
                'posts_per_page' => 6,
                'no_found_rows'  => true,
                'update_post_meta_cache' => false,
                'update_post_term_cache' => false,
            ]);
            foreach ($posts as $p) {
                $items[] = [
                    'title' => $p->post_title,
                    'url'   => get_permalink($p),
                    'meta'  => get_the_date('', $p),
                ];
            }
        } elseif ($type === 'category') {
            $terms = get_terms([
                'taxonomy'   => 'category',
                'search'     => $q,
                'number'     => 6,
                'hide_empty' => true,
            ]);
            if (!is_wp_error($terms)) {
                foreach ($terms as $t) {
                    $items[] = [
                        'title' => $t->name,
                        'url'   => get_term_link($t),
                        'meta'  => sprintf(__('%d 篇文章', 'aksrt'), $t->count),
                    ];
                }
            }
        } elseif ($type === 'tag') {
            $terms = get_terms([
                'taxonomy'   => 'post_tag',
                'search'     => $q,
                'number'     => 6,
                'hide_empty' => true,
            ]);
            if (!is_wp_error($terms)) {
                foreach ($terms as $t) {
                    $items[] = [
                        'title' => $t->name,
                        'url'   => get_term_link($t),
                        'meta'  => sprintf(__('%d 篇文章', 'aksrt'), $t->count),
                    ];
                }
            }
        }

        wp_send_json_success(['items' => $items]);
    }

    private function debug_log(string $message, array $context = []): void {
        if (!defined('WP_DEBUG') || !WP_DEBUG) {
            return;
        }
        $payload = '[AKSRT Scripts] ' . $message;
        if (!empty($context)) {
            $json = wp_json_encode($context, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
            if (false !== $json) {
                $payload .= ' ' . $json;
            }
        }
        error_log($payload);
    }

    /**
     * Resolve public route URLs from the current canonical page-template ownership.
     *
     * @return array<string, string>
     */
    private function resolve_frontend_routes(): array {
        return [
            'messages'  => $this->resolve_template_page_url('templates/pages/page-messages.php', '/messages/'),
            'cart'      => $this->resolve_template_page_url('templates/pages/page-cart.php', '/cart/'),
            'orders'    => $this->resolve_template_page_url('templates/pages/page-orders.php', '/orders/'),
            'download'  => $this->resolve_template_page_url('templates/pages/page-download.php', '/download/'),
            'resources' => home_url('/resources/'),
        ];
    }

    /**
     * Resolve the permalink for a template-owned page with a stable fallback.
     */
    private function resolve_template_page_url(string $template_file, string $fallback): string {
        if (function_exists('aksrt_find_template_page')) {
            $page = aksrt_find_template_page($template_file);
            if ($page instanceof WP_Post) {
                return get_permalink($page);
            }
        }

        return home_url($fallback);
    }
}