<?php
/**
 * AKSRT Pay System — 统一付费内容系统（1:1 对齐 legacy）
 *
 * 核心机制：
 * - 任何 post 通过 _aksrt_pay meta 成为付费文章
 * - pay_type 驱动行为（no/reading/download/gallery/video/vip）
 * - 统一的价格、VIP 价、下载源、属性、图库、视频管理
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

// ============================================================
// 付费类型常量
// ============================================================

if (!defined('AKSRT_PAY_TYPE_NO')) {
    define('AKSRT_PAY_TYPE_NO', \AKSRT\Core\DomainModel::PAY_TYPE_NO);
}
if (!defined('AKSRT_PAY_TYPE_READING')) {
    define('AKSRT_PAY_TYPE_READING', \AKSRT\Core\DomainModel::PAY_TYPE_READING);
}
if (!defined('AKSRT_PAY_TYPE_DOWNLOAD')) {
    define('AKSRT_PAY_TYPE_DOWNLOAD', \AKSRT\Core\DomainModel::PAY_TYPE_DOWNLOAD);
}
if (!defined('AKSRT_PAY_TYPE_GALLERY')) {
    define('AKSRT_PAY_TYPE_GALLERY', \AKSRT\Core\DomainModel::PAY_TYPE_GALLERY);
}
if (!defined('AKSRT_PAY_TYPE_VIDEO')) {
    define('AKSRT_PAY_TYPE_VIDEO', \AKSRT\Core\DomainModel::PAY_TYPE_VIDEO);
}
if (!defined('AKSRT_PAY_TYPE_VIP')) {
    define('AKSRT_PAY_TYPE_VIP', \AKSRT\Core\DomainModel::PAY_TYPE_VIP);
}

if (!function_exists('aksrt_asset_price_minor')) {
    function aksrt_asset_price_minor($value, string $pay_modo): int {
        if ($pay_modo === 'points') {
            return is_int($value) ? max(0, $value) : 0;
        }
        if (!is_string($value)) {
            return 0;
        }
        try {
            return \AKSRT\Ledger\AssetAmount::balance_minor($value);
        } catch (\InvalidArgumentException $e) {
            return 0;
        }
    }
}

if (!function_exists('aksrt_asset_price_value')) {
    function aksrt_asset_price_value(int $minor, string $pay_modo) {
        return $pay_modo === 'points'
            ? max(0, $minor)
            : \AKSRT\Ledger\AssetAmount::decimal_from_minor(max(0, $minor));
    }
}

/**
 * 检查用户是否为 VIP 豁免用户（免扣积分下载）。
 *
 * @param int $user_id
 * @return bool
 */
if (!function_exists('aksrt_is_vip_exempt')) {
    function aksrt_is_vip_exempt(int $user_id = 0): bool {
        if ($user_id <= 0) {
            $user_id = get_current_user_id();
        }
        if ($user_id <= 0) {
            return false;
        }
        // 优先使用 aksrt_is_download_credit_exempt_user（如果已定义）
        if (function_exists('aksrt_is_download_credit_exempt_user')) {
            return aksrt_is_download_credit_exempt_user($user_id);
        }
        // 回退：直接检查 VIP 角色
        if (function_exists('aksrt_is_vip') && aksrt_is_vip($user_id)) {
            return true;
        }
        return false;
    }
}

function aksrt_get_pay_types(): array {
    return \AKSRT\Core\DomainModel::pay_type_labels();
}

/**
 * Cash payment methods available for content cashiers.
 *
 * @return array<int, array{id:string,name:string}>
 */
if (!function_exists('aksrt_list_cash_payment_methods')) {
    function aksrt_list_cash_payment_methods(bool $logged_in = true): array {
        $ids = $logged_in
            ? ['balance', 'alipay', 'wechatpay', 'paypal', 'stripe', 'epay_alipay', 'epay_wxpay']
            : ['alipay', 'wechatpay', 'paypal', 'stripe', 'epay_alipay', 'epay_wxpay'];

        if (!class_exists('\AKSRT\Payment\Gateway')) {
            // No gateway manager → no real methods (avoid dead balance/alipay stubs).
            return [];
        }

        $methods = [];
        $gw = \AKSRT\Payment\Gateway::get_instance();
        foreach ($ids as $id) {
            $g = $gw->get_gateway($id);
            if (!$g) {
                continue;
            }
            if (method_exists($g, 'is_configured') && !$g->is_configured()) {
                continue;
            }
            $methods[] = [
                'id'   => $id,
                'name' => method_exists($g, 'get_name') ? (string) $g->get_name() : $id,
            ];
        }

        // Do not inject a fake balance/alipay option when nothing is configured —
        // callers should surface “暂无可用支付方式” instead of a dead method.
        return $methods;
    }
}

// ============================================================
// 元数据读取
// ============================================================

if (!function_exists('aksrt_get_pay_meta')) {
    function aksrt_get_pay_meta($post = null): array {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) return aksrt_default_pay_meta();

        $meta = get_post_meta($p->ID, \AKSRT\Core\DomainModel::PAY_META_KEY, true);
        if (is_array($meta) && isset($meta['pay_type'])) {
            return wp_parse_args(\AKSRT\Core\DomainModel::sanitize_pay_meta($meta), aksrt_default_pay_meta());
        }

        return aksrt_default_pay_meta();
    }
}

if (!function_exists('aksrt_default_pay_meta')) {
    function aksrt_default_pay_meta(): array {
        return \AKSRT\Core\DomainModel::default_pay_meta();
    }
}

if (!function_exists('aksrt_is_downloadable_content')) {
    function aksrt_is_downloadable_content($post = null): bool {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return false;
        }

        $meta = aksrt_get_pay_meta($p);
        if (($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO) !== AKSRT_PAY_TYPE_DOWNLOAD) {
            return false;
        }

        return !empty($meta['downloads']) && is_array($meta['downloads']);
    }
}

if (!function_exists('aksrt_get_download_box_meta')) {
    function aksrt_get_download_box_meta($post = null): array {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return [];
        }

        if (function_exists('aksrt_get_resource_meta') && function_exists('aksrt_is_resource_post') && aksrt_is_resource_post($p)) {
            $meta = aksrt_get_resource_meta($p);
            $meta['subject_label'] = __('资源', 'aksrt');
            return $meta;
        }

        $pay_meta = aksrt_get_pay_meta($p);
        $download_count = (int) get_post_meta($p->ID, \AKSRT\Core\DomainModel::RESOURCE_DOWNLOAD_COUNT_KEY, true);
        $view_count = (int) get_post_meta($p->ID, \AKSRT\Core\DomainModel::POST_VIEW_COUNT_KEY, true);
        $virtual_sales = max(0, (int) ($pay_meta['virtual_sales'] ?? 0));
        $sales_volume = (int) get_post_meta($p->ID, \AKSRT\Core\DomainModel::RESOURCE_SALES_VOLUME_KEY, true);
        $show_sales = !isset($pay_meta['show_sales']) || !empty($pay_meta['show_sales']);
        $pay_modo = (($pay_meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0';
        $pay_limit = (int) ($pay_meta['pay_limit'] ?? 0);
        if (!in_array($pay_limit, [0, 1, 2], true)) {
            $pay_limit = 0;
        }
        $over_price = $pay_meta['download_limit_over_price'] ?? ($pay_modo === 'points' ? 0 : '0.00');

        return [
            'version'         => (string) ($pay_meta['version'] ?? ''),
            'size'            => (string) ($pay_meta['size'] ?? ''),
            'price'           => (string) ($pay_meta['price'] ?? '0.00'),
            'points_price'    => (int) ($pay_meta['points_price'] ?? 0),
            'pay_modo'        => $pay_modo,
            'pay_limit'       => $pay_limit,
            'original_price'  => (string) ($pay_meta['original_price'] ?? '0.00'),
            'vip1_price'      => (string) ($pay_meta['vip1_price'] ?? '0.00'),
            'vip2_price'      => (string) ($pay_meta['vip2_price'] ?? '0.00'),
            'vip1_points'     => (int) ($pay_meta['vip1_points'] ?? 0),
            'vip2_points'     => (int) ($pay_meta['vip2_points'] ?? 0),
            'pay_type'        => (string) ($pay_meta['pay_type'] ?? AKSRT_PAY_TYPE_NO),
            'license'         => (string) ($pay_meta['license'] ?? ''),
            'compat'          => (string) ($pay_meta['compat'] ?? ''),
            'demo_url'        => (string) ($pay_meta['demo_url'] ?? ''),
            'downloads'       => array_values(is_array($pay_meta['downloads'] ?? null) ? $pay_meta['downloads'] : []),
            'download_count'  => max(0, $download_count),
            'view_count'      => max(0, $view_count),
            'virtual_sales'   => $virtual_sales,
            'sales_volume'    => max(0, $sales_volume),
            // legacy: virtual (pay_cuont) + real sales_volume; fall back to downloads when no sales yet.
            'sales_count'     => $show_sales ? ($virtual_sales + max(0, $sales_volume, $download_count)) : 0,
            'show_sales'      => $show_sales,
            'download_limit_over_price' => $over_price,
            'require_login'   => !empty($pay_meta['require_login']),
            'require_captcha' => !empty($pay_meta['require_captcha']),
            'subject_label'   => __('内容', 'aksrt'),
        ];
    }
}

/**
 * Latest paid content order for a user/post (resource product_type).
 *
 * @return array<string,mixed>|null
 */
if (!function_exists('aksrt_get_user_content_paid_order')) {
    function aksrt_get_user_content_paid_order(int $post_id, int $user_id = 0): ?array {
        $uid = $user_id > 0 ? $user_id : get_current_user_id();
        if ($uid <= 0 || $post_id <= 0 || !class_exists('\AKSRT\Payment\OrderRepository')) {
            return null;
        }
        $orders = \AKSRT\Payment\OrderRepository::get_instance()->get_user_orders($uid, [
            'product_type' => \AKSRT\Core\DomainModel::ORDER_PRODUCT_RESOURCE,
            'status' => '',
            'limit' => 20,
            'offset' => 0,
        ]);
        foreach ($orders as $order) {
            if ((int) ($order['product_id'] ?? 0) !== $post_id) {
                continue;
            }
            $status = (string) ($order['status'] ?? '');
            if (\AKSRT\Core\DomainModel::is_paid_order_status($status)) {
                return $order;
            }
        }
        return null;
    }
}

/**
 * Increment real sales volume for a paid content post (idempotent per order via order meta note flag optional).
 */
if (!function_exists('aksrt_bump_content_sales_volume')) {
    function aksrt_bump_content_sales_volume(int $post_id, int $delta = 1): int {
        if ($post_id <= 0 || $delta === 0) {
            return 0;
        }
        $key = \AKSRT\Core\DomainModel::RESOURCE_SALES_VOLUME_KEY;
        $cur = (int) get_post_meta($post_id, $key, true);
        $next = max(0, $cur + $delta);
        update_post_meta($post_id, $key, $next);
        return $next;
    }
}

/**
 * Whether guest cash purchase is allowed (legacy pay_no_logged_in + pay_limit=0).
 */
if (!function_exists('aksrt_allow_guest_content_pay')) {
    function aksrt_allow_guest_content_pay($post = null): bool {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return false;
        }
        $meta = function_exists('aksrt_get_pay_meta') ? aksrt_get_pay_meta($p) : [];
        $pay_limit = (int) ($meta['pay_limit'] ?? 0);
        if ($pay_limit > 0) {
            return false;
        }
        $pay_modo = (($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0';
        if ($pay_modo === 'points') {
            return false; // points require login
        }
        $order = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_order_settings() : [];
        $paid  = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_paid_content_settings() : [];
        $allow = !empty($order['no_logged_in']) || !empty($paid['no_logged_in']);
        /**
         * Filter guest content pay allow.
         *
         * @param bool    $allow
         * @param WP_Post $p
         */
        return (bool) apply_filters('aksrt_allow_guest_content_pay', $allow, $p);
    }
}

/**
 * Cookie lifetime days for guest paid content (legacy pay_cookie_day).
 */
if (!function_exists('aksrt_guest_pay_cookie_days')) {
    function aksrt_guest_pay_cookie_days(int $post_id = 0): int {
        $days = 15;
        if (class_exists('\AKSRT\Settings\Settings')) {
            $order = \AKSRT\Settings\Settings::get_order_settings();
            $days = max(1, min(31, (int) ($order['cookie_day'] ?? 15)));
        }
        /**
         * @param int $days
         * @param int $post_id
         */
        return max(1, (int) apply_filters('aksrt_guest_pay_cookie_days', $days, $post_id));
    }
}

/**
 * Client IP helper for cookie token binding.
 */
if (!function_exists('aksrt_pay_client_ip')) {
    function aksrt_pay_client_ip(): string {
        if (function_exists('aksrt_get_client_ip')) {
            return (string) aksrt_get_client_ip();
        }
        return (string) ($_SERVER['REMOTE_ADDR'] ?? '');
    }
}

/**
 * Build token material for guest order cookie (legacy-style).
 *
 * @param array<string,mixed> $order
 */
if (!function_exists('aksrt_content_order_cookie_token_key')) {
    function aksrt_content_order_cookie_token_key(array $order): string {
        $meta = is_array($order['meta_payload'] ?? null) ? $order['meta_payload'] : [];
        $ip = (string) ($meta['ip_address'] ?? $order['ip_address'] ?? '');
        $id = (string) ($order['id'] ?? $order['order_number'] ?? '');
        $post_id = (int) ($order['product_id'] ?? $meta['post_id'] ?? 0);
        $num = (string) ($order['order_number'] ?? '');
        $amount = function_exists('aksrt_format_price')
            ? aksrt_format_price((string) ($order['amount'] ?? '0.00'))
            : (string) ($order['amount'] ?? '0.00');
        return $id . '_' . $post_id . '_' . trim($num) . '_' . $amount . '_' . trim($ip);
    }
}

/**
 * Set guest paid cookies after cash order paid (content).
 *
 * @param array<string,mixed> $order
 */
if (!function_exists('aksrt_set_guest_pay_cookies')) {
    function aksrt_set_guest_pay_cookies(array $order): void {
        $post_id = (int) ($order['product_id'] ?? 0);
        $order_number = (string) ($order['order_number'] ?? '');
        if ($post_id <= 0 || $order_number === '') {
            return;
        }
        $days = aksrt_guest_pay_cookie_days($post_id);
        $expire = time() + (DAY_IN_SECONDS * $days);
        $path = defined('COOKIEPATH') && COOKIEPATH ? COOKIEPATH : '/';
        $domain = defined('COOKIE_DOMAIN') ? COOKIE_DOMAIN : '';
        $secure = is_ssl();
        $httponly = true;

        setcookie('aksrt_pay_' . $post_id, $order_number, $expire, $path, $domain, $secure, $httponly);
        $_COOKIE['aksrt_pay_' . $post_id] = $order_number;

        $token = md5(aksrt_content_order_cookie_token_key($order));
        $token_name = 'aksrt_pay_token_' . md5($order_number);
        setcookie($token_name, $token, $expire, $path, $domain, $secure, $httponly);
        $_COOKIE[$token_name] = $token;
    }
}

/**
 * Set guest paid cookies after content order paid (legacy aksrtpay_posts_order_created_set_cookie).
 *
 * @param array<string,mixed> $order
 */
if (!function_exists('aksrt_set_guest_content_pay_cookies')) {
    function aksrt_set_guest_content_pay_cookies(array $order): void {
        aksrt_set_guest_pay_cookies($order);
    }
}

/**
 * Resolve guest paid order from browser cookie for a product.
 *
 * @return array<string,mixed>|null
 */
if (!function_exists('aksrt_get_guest_paid_order')) {
    function aksrt_get_guest_paid_order(int $product_id, string $product_type = ''): ?array {
        if ($product_id <= 0 || empty($_COOKIE['aksrt_pay_' . $product_id])) {
            return null;
        }
        if (!class_exists('\AKSRT\Payment\OrderRepository') || !class_exists('\AKSRT\Core\DomainModel')) {
            return null;
        }
        $order_number = sanitize_text_field((string) $_COOKIE['aksrt_pay_' . $product_id]);
        if ($order_number === '') {
            return null;
        }
        $order = \AKSRT\Payment\OrderRepository::get_instance()->get($order_number);
        if (!$order) {
            return null;
        }
        $ptype = sanitize_key((string) ($order['product_type'] ?? ''));
        $want = sanitize_key($product_type);
        if ($want !== '' && $ptype !== $want) {
            return null;
        }
        if ((int) ($order['product_id'] ?? 0) !== $product_id) {
            return null;
        }
        // Guest orders only (logged-in users use user_id access).
        if ((int) ($order['user_id'] ?? -1) !== 0) {
            return null;
        }
        $status = (string) ($order['status'] ?? '');
        if (!\AKSRT\Core\DomainModel::is_paid_order_status($status)) {
            return null;
        }

        $paid_at = (string) ($order['paid_at'] ?? $order['created_at'] ?? '');
        if ($paid_at !== '') {
            $ts = strtotime($paid_at);
            $days = aksrt_guest_pay_cookie_days($product_id);
            if ($ts !== false && ($ts + DAY_IN_SECONDS * $days) < time()) {
                return null;
            }
        }

        $token_name = 'aksrt_pay_token_' . md5($order_number);
        $cookie_token = isset($_COOKIE[$token_name]) ? (string) $_COOKIE[$token_name] : '';
        $expect = md5(aksrt_content_order_cookie_token_key($order));
        if ($cookie_token === '' || !hash_equals($expect, $cookie_token)) {
            return null;
        }

        return $order;
    }
}

/**
 * Resolve guest paid order from browser cookie for a post (content/resource).
 *
 * @return array<string,mixed>|null
 */
if (!function_exists('aksrt_get_guest_content_paid_order')) {
    function aksrt_get_guest_content_paid_order(int $post_id): ?array {
        $type = class_exists('\AKSRT\Core\DomainModel')
            ? \AKSRT\Core\DomainModel::ORDER_PRODUCT_RESOURCE
            : 'resource';
        return aksrt_get_guest_paid_order($post_id, $type);
    }
}

/**
 * Whether current request has paid access via guest cookie (content/resource product).
 */
if (!function_exists('aksrt_guest_has_paid_access')) {
    function aksrt_guest_has_paid_access(int $post_id): bool {
        return null !== aksrt_get_guest_content_paid_order($post_id);
    }
}

/**
 * Resolve the amount a given user should pay for a post.
 *
 * @param int|WP_Post|null $post
 * @param int              $user_id
 * @return array{amount:int|string,base:int|string,vip_amount:int|string|null,modo:string,currency:string,is_free:bool,pay_limit:int,vip_level:int,original:int|string,vip1:int|string,vip2:int|string}
 */
if (!function_exists('aksrt_get_user_pay_price')) {
	function aksrt_get_user_pay_price($post = null, int $user_id = 0): array {
		$meta = function_exists('aksrt_get_pay_meta') ? aksrt_get_pay_meta($post) : \AKSRT\Core\DomainModel::default_pay_meta();
		$pay_modo = (($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0';
		$pay_limit = (int) ($meta['pay_limit'] ?? 0);
		if (!in_array($pay_limit, [0, 1, 2], true)) {
			$pay_limit = 0;
		}

		$uid = $user_id > 0 ? $user_id : (function_exists('get_current_user_id') ? (int) get_current_user_id() : 0);
		$vip_level = 0;
		if ($uid > 0 && function_exists('aksrt_get_user_vip_level')) {
			$vip_level = (int) aksrt_get_user_vip_level($uid);
		}
		if ($uid > 0 && function_exists('aksrt_is_vip_exempt') && aksrt_is_vip_exempt($uid)) {
			$vip_level = max($vip_level, 2);
		}

		$currency = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_currency_name() : __('积分', 'aksrt');
		$cash_symbol = '￥';
		$vip_settings = [];
		if (class_exists('\AKSRT\Settings\Settings')) {
			$paid = \AKSRT\Settings\Settings::get_paid_content_settings();
			$cash_symbol = (string) ($paid['display']['currency_symbol'] ?? '￥');
			$vip_settings = \AKSRT\Settings\Settings::get_payment_vip_settings();
		}
		$vip_levels = is_array($vip_settings['levels'] ?? null) ? $vip_settings['levels'] : [];

		if ($pay_modo === 'points') {
			$base_minor = max(0, (int) ($meta['points_price'] ?? 0));
			$vip1_minor = max(0, (int) ($meta['vip1_points'] ?? 0));
			$vip2_minor = max(0, (int) ($meta['vip2_points'] ?? 0));
			$currency_label = $currency;
		} else {
			$parse_cash = static function ($value): int {
				if (!is_string($value)) {
					return 0;
				}
				try {
					return \AKSRT\Ledger\AssetAmount::balance_minor($value);
				} catch (\InvalidArgumentException $e) {
					return 0;
				}
			};
			$base_minor = $parse_cash($meta['price'] ?? '0');
			$vip1_minor = $parse_cash($meta['vip1_price'] ?? '0');
			$vip2_minor = $parse_cash($meta['vip2_price'] ?? '0');
			$currency_label = $cash_symbol;
		}

		$vip_prices = [
			1 => $vip1_minor,
			2 => $vip2_minor,
		];
		$vip_minor = null;
		for ($level = min(2, $vip_level); $level >= 1; $level--) {
			if (empty($vip_levels[$level]['enabled'])) {
				continue;
			}
			$level_price = $vip_prices[$level];
			if ($level_price < $base_minor) {
				$vip_minor = $level_price;
			}
			break;
		}

		$amount_minor = $vip_minor ?? $base_minor;

		// Role/VIP free-download exemption (global setting).
		if ($amount_minor > 0 && $uid > 0 && function_exists('aksrt_is_download_credit_exempt_user') && aksrt_is_download_credit_exempt_user($uid)) {
			$amount_minor = 0;
		}

		if ($pay_modo === 'points') {
			$original = max(0, (int) ($meta['original_price'] ?? 0));
			$amount = $amount_minor;
			$base = $base_minor;
			$vip1 = $vip1_minor;
			$vip2 = $vip2_minor;
			$vip_amount = $vip_minor;
		} else {
			$original_minor = $parse_cash($meta['original_price'] ?? '0');
			$amount = \AKSRT\Ledger\AssetAmount::decimal_from_minor($amount_minor);
			$base = \AKSRT\Ledger\AssetAmount::decimal_from_minor($base_minor);
			$vip1 = \AKSRT\Ledger\AssetAmount::decimal_from_minor($vip1_minor);
			$vip2 = \AKSRT\Ledger\AssetAmount::decimal_from_minor($vip2_minor);
			$vip_amount = $vip_minor === null ? null : \AKSRT\Ledger\AssetAmount::decimal_from_minor($vip_minor);
			$original = \AKSRT\Ledger\AssetAmount::decimal_from_minor($original_minor);
		}

		return [
			'amount'     => $amount,
			'base'       => $base,
			'vip_amount' => $vip_amount,
			'modo'       => $pay_modo,
			'currency'   => $currency_label,
			'is_free'    => $amount_minor <= 0,
			'pay_limit'  => $pay_limit,
			'vip_level'  => $vip_level,
			'original'   => $original,
			'vip1'       => $vip1,
			'vip2'       => $vip2,
		];
	}
}

/**
 * Whether content cashier may accept coupons for this post (legacy coupon_post_s || coupon_s).
 */
if (!function_exists('aksrt_is_content_coupon_allowed')) {
    function aksrt_is_content_coupon_allowed($post = null): bool {
        $meta = function_exists('aksrt_get_pay_meta') ? aksrt_get_pay_meta($post) : [];
        if (!empty($meta['coupon_s'])) {
            return true;
        }
        if (class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_content_coupon_settings')) {
            $cfg = \AKSRT\Settings\Settings::get_content_coupon_settings();
            return !empty($cfg['enabled']);
        }
        if (class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_paid_content_settings')) {
            $paid = \AKSRT\Settings\Settings::get_paid_content_settings();
            return !empty($paid['coupon_post_s']);
        }
        return false;
    }
}

/**
 * Buyer-facing 推广折扣 amount for a post (0 if no eligible referrer).
 * Cash only; mirrors aksrtpay_get_post_rebate_discount.
 */
if (!function_exists('aksrt_get_post_rebate_discount')) {
    function aksrt_get_post_rebate_discount($post = null, int $user_id = 0): string {
        $meta = function_exists('aksrt_get_pay_meta') ? aksrt_get_pay_meta($post) : [];
        $fixed = is_string($meta['pay_rebate_discount'] ?? null) ? (string) $meta['pay_rebate_discount'] : '0.00';
        $fixed_minor = aksrt_asset_price_minor($fixed, '0');
        if ($fixed_minor <= 0) {
            return '0.00';
        }
        if (!class_exists('\AKSRT\Settings\Settings') || !method_exists('\AKSRT\Settings\Settings', 'get_payment_affiliate_settings')) {
            return '0.00';
        }
        $aff = \AKSRT\Settings\Settings::get_payment_affiliate_settings();
        if (empty($aff['enabled'])) {
            return '0.00';
        }
        $uid = $user_id > 0 ? $user_id : (function_exists('get_current_user_id') ? (int) get_current_user_id() : 0);
        $referrer_id = class_exists('\AKSRT\Payment\ReferralAttribution')
            ? \AKSRT\Payment\ReferralAttribution::get_instance()->resolve($uid)
            : 0;
        if ($referrer_id <= 0) {
            return '0.00';
        }
        // Need a positive ratio for referrer (VIP tier of referrer preferred).
        $ratio = (int) \AKSRT\Settings\Settings::affiliate_ratio_for_user($referrer_id);
        if ($ratio <= 0) {
            return '0.00';
        }
        return \AKSRT\Ledger\AssetAmount::decimal_from_minor($fixed_minor);
    }
}

/**
 * Whether cash checkout may use points deduction (legacy points_deduction).
 *
 * legacy: aksrtpay_is_allow_points_deduction() always returns false ("暂未启用").
 * Keep the same contract: schema/UI may exist, runtime is hard-off unless filter overrides.
 */
if (!function_exists('aksrt_is_allow_points_deduction')) {
    function aksrt_is_allow_points_deduction(string $context = 'content'): bool {
        // Mirror legacy hard-off first.
        $allowed = false;
        if (class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_all')) {
            $all = \AKSRT\Settings\Settings::get_all();
            // Even if switch on, default remains false like legacy until product enables it.
            if (!empty($all['points_deduction_s']) && class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'credits_enabled') && \AKSRT\Settings\Settings::credits_enabled()) {
                $allowed = false; // still disabled at runtime
            }
        }
        return (bool) apply_filters('aksrt_is_allow_points_deduction', $allowed, $context);
    }
}

/**
 * Content cashier does not accept card_pass payment_method.
 * Card-pass for balance/VIP/points is user-center redeem (legacy order types 4/8/9),
 * not content pay types (reading/download/gallery/video).
 */
if (!function_exists('aksrt_is_content_card_pass_pay_allowed')) {
    function aksrt_is_content_card_pass_pay_allowed($post = null): bool {
        return (bool) apply_filters('aksrt_is_content_card_pass_pay_allowed', false, $post);
    }
}

// ============================================================
// 状态判断
// ============================================================

if (!function_exists('aksrt_is_paid_post')) {
    function aksrt_is_paid_post($post = null): bool {
        return aksrt_get_pay_meta($post)['pay_type'] !== AKSRT_PAY_TYPE_NO;
    }
}

if (!function_exists('aksrt_is_paid_reading')) {
    function aksrt_is_paid_reading($post = null): bool {
        return aksrt_get_pay_meta($post)['pay_type'] === AKSRT_PAY_TYPE_READING;
    }
}

/**
 * Detect the canonical paid-fragment shortcode in a post's raw content.
 *
 * The editor writes this exact shortcode format, so this is the single
 * source of truth for whether a reading price has any protected fragment to
 * apply to. It deliberately does not inspect rendered content.
 */
if (!function_exists('aksrt_post_has_payshow_shortcode')) {
    function aksrt_post_has_payshow_shortcode($post = null): bool {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return false;
        }

        return preg_match(
            '/\[hidecontent\b[^\]]*\btype\s*=\s*(?:"payshow"|\'payshow\'|payshow)[^\]]*\]/i',
            (string) $p->post_content
        ) === 1;
    }
}

/**
 * A paid fragment is active only for an explicitly priced paid-reading post.
 *
 * A zero-price reading configuration is intentionally public: authors can
 * save content before setting a price without accidentally hiding it.
 */
if (!function_exists('aksrt_is_payshow_purchase_enabled')) {
    function aksrt_is_payshow_purchase_enabled($post = null): bool {
        if (!aksrt_post_has_payshow_shortcode($post)) {
            return false;
        }

        $meta = aksrt_get_pay_meta($post);
        if (($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO) !== AKSRT_PAY_TYPE_READING) {
            return false;
        }

        $pay_modo = ($meta['pay_modo'] ?? '0') === 'points' ? 'points' : '0';
        $price = $pay_modo === 'points'
            ? (int) ($meta['points_price'] ?? 0)
            : (string) ($meta['price'] ?? '0.00');

        return aksrt_asset_price_minor($price, $pay_modo) > 0;
    }
}

if (!function_exists('aksrt_is_paid_download')) {
    function aksrt_is_paid_download($post = null): bool {
        return aksrt_get_pay_meta($post)['pay_type'] === AKSRT_PAY_TYPE_DOWNLOAD;
    }
}

if (!function_exists('aksrt_is_paid_gallery')) {
    function aksrt_is_paid_gallery($post = null): bool {
        return aksrt_get_pay_meta($post)['pay_type'] === AKSRT_PAY_TYPE_GALLERY;
    }
}

if (!function_exists('aksrt_is_paid_video')) {
    function aksrt_is_paid_video($post = null): bool {
        return aksrt_get_pay_meta($post)['pay_type'] === AKSRT_PAY_TYPE_VIDEO;
    }
}

if (!function_exists('aksrt_is_vip_only')) {
    function aksrt_is_vip_only($post = null): bool {
        return aksrt_get_pay_meta($post)['pay_type'] === AKSRT_PAY_TYPE_VIP;
    }
}

// ============================================================
// 付费状态检查
// ============================================================

if (!function_exists('aksrt_has_paid_access')) {
    function aksrt_has_paid_access($post = null, int $user_id = 0): bool {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) return true;

        // 单一真相：付费访问由 \AKSRT\Content\Visibility（基于订单 + VIP）裁决。
        if (class_exists('\AKSRT\Content\Visibility')) {
            $state = \AKSRT\Content\Visibility::get_post_access_state($p, $user_id);
            return !empty($state['has_paid_access']);
        }

        // 兜底：仅在 service 不可用时使用，避免离线环境直接拒绝。
        $meta = aksrt_get_pay_meta($p);
        if ($meta['pay_type'] === AKSRT_PAY_TYPE_NO) return true;
        $pay_modo = ($meta['pay_modo'] ?? '0') === 'points' ? 'points' : '0';
        $price = $pay_modo === 'points' ? (int) ($meta['points_price'] ?? 0) : (string) ($meta['price'] ?? '0.00');
        if (aksrt_asset_price_minor($price, $pay_modo) <= 0 && $meta['pay_type'] !== AKSRT_PAY_TYPE_VIP) return true;

        $uid = $user_id > 0 ? $user_id : get_current_user_id();

        if ($uid > 0 && function_exists('aksrt_is_vip_exempt') && aksrt_is_vip_exempt($uid)) return true;
        if ($uid > 0 && get_user_meta($uid, '_aksrt_paid_' . $p->ID, true)) return true;

        return false;
    }
}

if (!function_exists('aksrt_can_access_content')) {
    function aksrt_can_access_content($post = null): bool {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) return true;

        if (class_exists('\AKSRT\Content\Visibility')) {
            return \AKSRT\Content\Visibility::can_view_paid_content($p);
        }

        $pay_type = aksrt_get_pay_meta($p)['pay_type'];
        if ($pay_type === AKSRT_PAY_TYPE_NO) return true;

        // 只有 reading/gallery/video 需要隐藏内容
        if (!in_array($pay_type, [AKSRT_PAY_TYPE_READING, AKSRT_PAY_TYPE_GALLERY, AKSRT_PAY_TYPE_VIDEO], true)) {
            return true;
        }

        return aksrt_has_paid_access($p);
    }
}

if (!function_exists('aksrt_get_download_cost')) {
    function aksrt_get_download_cost($post = null): int {
        if (function_exists('aksrt_resource_download_cost')) {
            return (int) aksrt_resource_download_cost($post);
        }

        $meta = aksrt_get_pay_meta($post);
        if (($meta['pay_modo'] ?? '0') !== 'points') {
            return 0;
        }
        return max(0, (int) ($meta['points_price'] ?? 0));
    }
}

/**
 * URL of the legacy-style single-post download page (page template + ?post=ID).
 */
if (!function_exists('aksrt_get_single_download_page_url')) {
    function aksrt_get_single_download_page_url($post = null): string {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return '';
        }

        $page_url = '';
        if (function_exists('aksrt_find_template_page')) {
            $page = aksrt_find_template_page('templates/pages/page-download-file.php');
            if ($page instanceof WP_Post) {
                $page_url = get_permalink($page);
            }
        }
        if ($page_url === '') {
            // Fallback: look for any page using the template via slug convention.
            $page_url = home_url('/download-file/');
        }

        return add_query_arg('post', (int) $p->ID, $page_url);
    }
}

// ============================================================
// 价格显示
// ============================================================

if (!function_exists('aksrt_get_pay_price_label')) {
    function aksrt_get_pay_price_label($post = null): array {
        $meta = aksrt_get_pay_meta($post);
        $priced = function_exists('aksrt_get_user_pay_price')
            ? aksrt_get_user_pay_price($post)
            : null;
        $pay_modo = is_array($priced)
            ? ((($priced['modo'] ?? '0') === 'points') ? 'points' : '0')
            : ((($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0');
        $pay_limit = is_array($priced)
            ? (int) ($priced['pay_limit'] ?? 0)
            : (int) ($meta['pay_limit'] ?? 0);
        $vip_level = is_array($priced) ? (int) ($priced['vip_level'] ?? 0) : 0;
        $currency = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_currency_name() : __('积分', 'aksrt');
        $cash_symbol = '￥';
        if (class_exists('\AKSRT\Settings\Settings')) {
            $paid = \AKSRT\Settings\Settings::get_paid_content_settings();
            $cash_symbol = (string) ($paid['display']['currency_symbol'] ?? '￥');
        }

        // pay_type VIP-only or pay_limit not met → member-exclusive badge.
        $member_blocked = ($meta['pay_type'] === AKSRT_PAY_TYPE_VIP)
            || ($pay_limit > 0 && $vip_level < $pay_limit);
        if ($member_blocked) {
            return [
                'text' => __('会员专属', 'aksrt'),
                'free' => false,
                'amount' => 0,
                'base' => is_array($priced) ? ($priced['base'] ?? ($pay_modo === 'points' ? 0 : '0.00')) : ($pay_modo === 'points' ? 0 : '0.00'),
                'modo' => $pay_modo,
                'pay_limit' => $pay_limit,
            ];
        }

        $price = is_array($priced)
            ? ($priced['amount'] ?? ($pay_modo === 'points' ? 0 : '0.00'))
            : ($pay_modo === 'points' ? (int) ($meta['points_price'] ?? 0) : (string) ($meta['price'] ?? '0.00'));
        $base = is_array($priced) ? ($priced['base'] ?? $price) : $price;
        $price_minor = aksrt_asset_price_minor($price, $pay_modo);

        if ($price_minor <= 0) {
            return [
                'text' => __('免费', 'aksrt'),
                'free' => true,
                'amount' => 0,
                'base' => $base,
                'modo' => $pay_modo,
                'pay_limit' => $pay_limit,
            ];
        }

        if ($pay_modo === 'points') {
            return [
                'text' => sprintf(__('%s %s', 'aksrt'), aksrt_format_price($price), $currency),
                'free' => false,
                'amount' => $price,
                'base' => $base,
                'modo' => 'points',
                'pay_limit' => $pay_limit,
            ];
        }

        return [
            'text' => $cash_symbol . aksrt_format_price($price),
            'free' => false,
            'amount' => $price,
            'base' => $base,
            'modo' => '0',
            'pay_limit' => $pay_limit,
        ];
    }
}

if (!function_exists('aksrt_format_price')) {
    function aksrt_format_price($price): string {
        if (is_int($price)) {
            return (string) max(0, $price);
        }
        if (!is_string($price)) {
            return '0';
        }
        try {
            $decimal = \AKSRT\Ledger\AssetAmount::balance($price)->decimal();
        } catch (\InvalidArgumentException $e) {
            return '0';
        }
        return str_ends_with($decimal, '.00')
            ? substr($decimal, 0, -3)
            : rtrim($decimal, '0');
    }
}

// ============================================================
// 付费类型徽章
// ============================================================

if (!function_exists('aksrt_get_pay_type_badge')) {
    function aksrt_get_pay_type_badge(string $pay_type): string {
        $badges = [
            AKSRT_PAY_TYPE_READING  => ['label' => __('付费阅读', 'aksrt'), 'color' => '#EF4444', 'icon' => 'fa-lock'],
            AKSRT_PAY_TYPE_DOWNLOAD => ['label' => __('付费下载', 'aksrt'), 'color' => '#F97316', 'icon' => 'fa-download'],
            AKSRT_PAY_TYPE_GALLERY  => ['label' => __('付费图库', 'aksrt'), 'color' => '#10B981', 'icon' => 'fa-image'],
            AKSRT_PAY_TYPE_VIDEO    => ['label' => __('付费视频', 'aksrt'), 'color' => '#8B5CF6', 'icon' => 'fa-play-circle'],
            AKSRT_PAY_TYPE_VIP      => ['label' => __('VIP 专属', 'aksrt'), 'color' => '#3B82F6', 'icon' => 'fa-certificate'],
        ];

        if (!isset($badges[$pay_type])) return '';
        $b = $badges[$pay_type];
        return sprintf(
            '<span class="aksrt-pay-badge" style="background:%s"><i class="fa %s"></i> %s</span>',
            esc_attr($b['color']), esc_attr($b['icon']), esc_html($b['label'])
        );
    }
}

/**
 * legacy aksrtpay_get_service() — service bullets under pay/download box.
 *
 * @return string HTML list of service items.
 */
if (!function_exists('aksrt_get_pay_service_html')) {
    function aksrt_get_pay_service_html(string $class = 'resource-download-box__guarantee'): string {
        $service = [];
        if (class_exists('\AKSRT\Settings\Settings')) {
            $order = \AKSRT\Settings\Settings::get_order_settings();
            $service = is_array($order['service'] ?? null) ? $order['service'] : [];
        }

        $text = trim((string) ($service['text'] ?? ''));
        $value = trim((string) ($service['value'] ?? ''));
        $icon = trim((string) ($service['icon'] ?? 'fa fas fa-check-circle'));
        if ($icon === '') {
            $icon = 'fa fas fa-check-circle';
        }

        $lines = [];
        if ($text !== '') {
            $lines = preg_split('/\r\n|\r|\n/', $text) ?: [];
        }
        if ($value !== '') {
            $lines[] = $value;
        }
        $lines = array_values(array_filter(array_map('trim', $lines)));

        $html = '';
        foreach ($lines as $line) {
            $html .= '<span class="' . esc_attr($class) . '">';
            $html .= '<i class="' . esc_attr($icon) . '" aria-hidden="true"></i> ';
            $html .= esc_html($line);
            $html .= '</span>';
        }

        return $html;
    }
}

/**
 * Demo link button (legacy aksrtpay_get_demo_link).
 */
if (!function_exists('aksrt_get_demo_link_html')) {
    function aksrt_get_demo_link_html($post = null, string $class = 'resource-download-box__btn btn-outline resource-download-box__btn--demo'): string {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return '';
        }
        $meta = aksrt_get_pay_meta($p);
        if (($meta['pay_type'] ?? '') !== AKSRT_PAY_TYPE_DOWNLOAD) {
            return '';
        }
        $url = trim((string) ($meta['demo_url'] ?? ''));
        if ($url === '') {
            return '';
        }
        $text = __('查看演示', 'aksrt');
        return sprintf(
            '<a target="_blank" rel="nofollow noopener" href="%s" class="%s"><i class="fa fas fa-external-link-alt" aria-hidden="true"></i><span>%s</span></a>',
            esc_url($url),
            esc_attr($class),
            esc_html($text)
        );
    }
}

/**
 * Product attributes row (legacy aksrtpay_get_product_attributes).
 */
if (!function_exists('aksrt_get_pay_attributes_html')) {
    function aksrt_get_pay_attributes_html($post = null, string $class = 'resource-download-box__attrs'): string {
        $p = get_post($post);
        if (!($p instanceof WP_Post)) {
            return '';
        }
        $meta = aksrt_get_pay_meta($p);
        $attrs = is_array($meta['attributes'] ?? null) ? $meta['attributes'] : [];
        // Built-in version/size/license/compat as attributes when set.
        $builtin = [
            'version' => __('版本', 'aksrt'),
            'size'    => __('大小', 'aksrt'),
            'license' => __('授权', 'aksrt'),
            'compat'  => __('兼容', 'aksrt'),
        ];
        $rows = [];
        foreach ($builtin as $key => $label) {
            $val = trim((string) ($meta[$key] ?? ''));
            if ($val !== '') {
                $rows[] = ['name' => $label, 'value' => $val];
            }
        }
        foreach ($attrs as $row) {
            if (!is_array($row)) {
                continue;
            }
            $name = trim((string) ($row['name'] ?? $row['key'] ?? $row['label'] ?? ''));
            $value = trim((string) ($row['value'] ?? $row['val'] ?? ''));
            if ($name === '' || $value === '') {
                continue;
            }
            $rows[] = ['name' => $name, 'value' => $value];
        }
        if ($rows === []) {
            return '';
        }
        $html = '<ul class="' . esc_attr($class) . '">';
        foreach ($rows as $row) {
            $html .= '<li class="' . esc_attr($class) . '-item">';
            $html .= '<span class="' . esc_attr($class) . '-name">' . esc_html($row['name']) . '</span>';
            $html .= '<span class="' . esc_attr($class) . '-value">' . esc_html($row['value']) . '</span>';
            $html .= '</li>';
        }
        $html .= '</ul>';
        return $html;
    }
}

/**
 * Render the configured icon for a paid-content VIP tier.
 */
if (!function_exists('aksrt_get_pay_vip_icon_html')) {
	function aksrt_get_pay_vip_icon_html(array $level_settings, string $class = 'mr3 em14'): string {
		$icon_url = esc_url((string) ($level_settings['img_icon'] ?? ''));
		if ($icon_url === '') {
			return '<i class="fa fas fa-certificate ' . esc_attr($class) . '" aria-hidden="true"></i>';
		}

		return '<img class="pay-vip-level-icon ' . esc_attr($class) . '" src="' . $icon_url . '" alt="" decoding="async">';
	}
}

/**
 * Render the reference-theme base-price block for a paid article.
 */
if (!function_exists('aksrt_get_show_pay_price_html')) {
	function aksrt_get_show_pay_price_html(array $meta, array $priced, string $class = 'c-red'): string {
		$modo = (($priced['modo'] ?? '0') === 'points') ? 'points' : '0';
		$base = $priced['base'] ?? ($modo === 'points' ? 0 : '0.00');
		$pay_limit = (int) ($priced['pay_limit'] ?? ($meta['pay_limit'] ?? 0));
		$cash_symbol = '￥';
		$points_name = __('积分', 'aksrt');
		$vip_settings = [];

		if (class_exists('\AKSRT\Settings\Settings')) {
			$paid_settings = \AKSRT\Settings\Settings::get_paid_content_settings();
			$cash_symbol = (string) ($paid_settings['display']['currency_symbol'] ?? '￥');
			$points_name = \AKSRT\Settings\Settings::get_currency_name();
			$vip_settings = \AKSRT\Settings\Settings::get_payment_vip_settings();
		}

		$vip_levels = is_array($vip_settings['levels'] ?? null) ? $vip_settings['levels'] : [];
		if ($pay_limit > 0 && !empty($vip_settings['enabled'])) {
			$level_settings = is_array($vip_levels[$pay_limit] ?? null) ? $vip_levels[$pay_limit] : [];
			$level_name = (string) ($level_settings['name'] ?? sprintf(__('VIP%d', 'aksrt'), $pay_limit));
			$title = $pay_limit === 2
				? sprintf(__('仅%s可购买', 'aksrt'), $level_name)
				: sprintf(__('%s及以上会员可购买', 'aksrt'), $level_name);
			$icon = aksrt_get_pay_vip_icon_html($level_settings);

			return '<div class="price-box"><div class="' . esc_attr($class) . ' padding-h10"><b data-toggle="tooltip" title="' . esc_attr($title) . '" class="badg radius jb-vip' . esc_attr((string) $pay_limit) . ' pay-vip-exclusive">' . $icon . esc_html__('会员专属资源', 'aksrt') . '</b></div></div>';
		}

		if ($modo === 'points') {
			return '<div class="price-box"><div class="c-yellow ' . esc_attr($class) . '"><span class="em12 mr3"><i class="fa fas fa-coins" aria-hidden="true"></i></span><b class="em3x">' . esc_html(aksrt_format_price($base)) . '</b><span class="px12 ml3">' . esc_html($points_name) . '</span></div></div>';
		}

		$mark = '<span class="pay-mark">' . esc_html($cash_symbol) . '</span>';
		$base_minor = aksrt_asset_price_minor($base, '0');
		$original = $meta['original_price'] ?? '0.00';
		$original_minor = aksrt_asset_price_minor($original, '0');
		$original_html = '';
		if ($original_minor > $base_minor) {
			$original_html = '<span class="original-price" title="' . esc_attr(sprintf(__('原价 %s', 'aksrt'), aksrt_format_price($original))) . '">' . $mark . esc_html(aksrt_format_price($original)) . '</span>';
		}

		$promotion_tag = trim((string) ($meta['promotion_tag'] ?? ''));
		if ($promotion_tag !== '' && $original_minor > 0) {
			$original_html = '<div class="inline-block ml10 text-left"><badge>' . wp_kses_post($promotion_tag) . '</badge><br>' . $original_html . '</div>';
		}

		$price = '<div class="' . esc_attr($class) . '"><b class="em3x">' . $mark . esc_html(aksrt_format_price($base)) . '</b>' . $original_html . '</div>';

		return '<div class="price-box">' . $price . '</div>';
	}
}

/**
 * Render all enabled VIP prices for a paid article.
 */
if (!function_exists('aksrt_get_posts_vip_price')) {
	function aksrt_get_posts_vip_price(array $meta): string {
		if (!class_exists('\AKSRT\Settings\Settings')) {
			return '';
		}

		$vip_settings = \AKSRT\Settings\Settings::get_payment_vip_settings();
		if (empty($vip_settings['enabled'])) {
			return '';
		}

		$levels = is_array($vip_settings['levels'] ?? null) ? $vip_settings['levels'] : [];
		$modo = (($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0';
		$base = $modo === 'points' ? (int) ($meta['points_price'] ?? 0) : (string) ($meta['price'] ?? '0.00');
		$base_minor = aksrt_asset_price_minor($base, $modo);
		if ($base_minor <= 0) {
			return '';
		}

		$mark = $modo === 'points'
			? '<span class="px12"><i class="fa fas fa-coins" aria-hidden="true"></i></span>'
			: '<span class="px12">' . esc_html((string) (\AKSRT\Settings\Settings::get_paid_content_settings()['display']['currency_symbol'] ?? '￥')) . '</span>';
		$user_id = get_current_user_id();
		$user_vip_level = $user_id > 0 && function_exists('aksrt_get_user_vip_level')
			? (int) aksrt_get_user_vip_level($user_id)
			: 0;
		$items = [];

		foreach ([1, 2] as $level) {
			$level_settings = is_array($levels[$level] ?? null) ? $levels[$level] : [];
			if (empty($level_settings['enabled'])) {
				continue;
			}

			$key = $modo === 'points' ? 'vip' . $level . '_points' : 'vip' . $level . '_price';
			$value = $meta[$key] ?? ($modo === 'points' ? 0 : '0.00');
			$vip_minor = aksrt_asset_price_minor($value, $modo);
			if ($vip_minor >= $base_minor) {
				continue;
			}

			$level_name = (string) ($level_settings['name'] ?? sprintf(__('VIP%d', 'aksrt'), $level));
			$price = $vip_minor === 0
				? esc_html__('免费', 'aksrt')
				: $mark . esc_html(aksrt_format_price($value));
			$icon = aksrt_get_pay_vip_icon_html($level_settings);
			$action_class = $user_id <= 0 ? ' signin-loader' : ($user_vip_level < $level ? ' pay-vip' : '');
			$title = sprintf(__('开通%s', 'aksrt'), $level_name);
			$title_attr = $action_class !== ''
				? ' data-toggle="tooltip" title="' . esc_attr($title) . '"'
				: '';

			$items[] = '<span class="but vip-price' . $action_class . '" vip-level="' . esc_attr((string) $level) . '" data-vip-level="' . esc_attr((string) $level) . '"' . $title_attr . '>' . $icon . esc_html($level_name) . '<span class="em12 ml3 vip-price-text">' . $price . '</span></span>';
		}

		$html = implode('', $items);
		if (count($items) > 1) {
			$html = '<span class="vip-price-buts but-average inline">' . $html . '</span>';
		}

		return $html;
	}
}

// ============================================================
// 付费墙 HTML
// ============================================================

if (!function_exists('aksrt_get_paywall_html')) {
    function aksrt_get_paywall_html(WP_Post $post, array $args = []): string {
        $is_widget = ($args['layout'] ?? 'article') === 'widget';
        $theme = sanitize_html_class((string) ($args['theme'] ?? 'jb-red')) ?: 'jb-red';
        $meta = aksrt_get_pay_meta($post);
        $pay_type = (string) ($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO);
        if ($pay_type === AKSRT_PAY_TYPE_NO) return '';

        $priced = aksrt_get_user_pay_price($post);
        $modo = (string) ($priced['modo'] ?? '0');
        $amount = $priced['amount'] ?? 0;
        $amount_minor = aksrt_asset_price_minor($amount, $modo);
		$pay_limit = (int) ($priced['pay_limit'] ?? ($meta['pay_limit'] ?? 0));
		$vip_level = (int) ($priced['vip_level'] ?? 0);
		$pay_vip_settings = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_payment_vip_settings() : [];
		$member_blocked = $pay_limit > 0 && !empty($pay_vip_settings['enabled']) && $vip_level < $pay_limit;
        $type_labels = [
            AKSRT_PAY_TYPE_READING => __('付费阅读', 'aksrt'),
            AKSRT_PAY_TYPE_DOWNLOAD => __('付费下载', 'aksrt'),
            AKSRT_PAY_TYPE_GALLERY => __('付费图库', 'aksrt'),
            AKSRT_PAY_TYPE_VIDEO => __('付费视频', 'aksrt'),
            AKSRT_PAY_TYPE_VIP => __('VIP 专属', 'aksrt'),
        ];
        $type_label = $type_labels[$pay_type] ?? __('付费内容', 'aksrt');
        $order_types = [
            AKSRT_PAY_TYPE_READING => 1,
            AKSRT_PAY_TYPE_DOWNLOAD => 2,
            AKSRT_PAY_TYPE_GALLERY => 5,
            AKSRT_PAY_TYPE_VIDEO => 6,
            AKSRT_PAY_TYPE_VIP => 4,
        ];
        $order_type = (int) ($order_types[$pay_type] ?? 1);
        $title = get_the_title($post);
        $doc = trim((string) ($args['message'] ?? ''));
        if ($doc === '') {
            $doc = sprintf(__('此内容为%s，请付费后查看', 'aksrt'), $type_label);
        }
        $sales = max(0, (int) ($meta['virtual_sales'] ?? 0));
        $sales += max(0, (int) get_post_meta($post->ID, \AKSRT\Core\DomainModel::RESOURCE_SALES_VOLUME_KEY, true));
		$tag = $is_widget
			? '<badge class="pay-tag abs-center">' . esc_html($type_label) . '</badge>'
			: '<div class="pay-tag abs-center">' . esc_html($type_label) . '</div>';
		$block_class = $is_widget ? ' btn-block' : '';
		$button = '';
		if ($member_blocked) {
			$level_settings = is_array($pay_vip_settings['levels'][$pay_limit] ?? null) ? $pay_vip_settings['levels'][$pay_limit] : [];
			$level_name = (string) ($level_settings['name'] ?? sprintf(__('VIP%d', 'aksrt'), $pay_limit));
			$vip_action = $vip_level > 0
				? sprintf(__('升级%s', 'aksrt'), $level_name)
				: __('开通会员', 'aksrt');
			$action_class = is_user_logged_in() ? 'pay-vip' : 'signin-loader';
			$icon = aksrt_get_pay_vip_icon_html($level_settings);
			$button = '<div class="badg c-yellow em09 mb6"><i class="fa fas fa-fw fa-info-circle mr6" aria-hidden="true"></i>' . esc_html(sprintf(__('您暂无购买权限，请先%s', 'aksrt'), $vip_action)) . '</div>';
			$button .= '<a href="javascript:;" vip-level="' . esc_attr((string) $pay_limit) . '" data-vip-level="' . esc_attr((string) $pay_limit) . '" class="but btn-block jb-vip' . esc_attr((string) $pay_limit) . ' ' . esc_attr($action_class) . ' padding-lg">' . $icon . esc_html($vip_action) . '</a>';
		} elseif (!is_user_logged_in()) {
			if ($amount_minor > 0 && $modo === '0' && aksrt_allow_guest_content_pay($post)) {
				$button = '<button type="button" class="but jb-red padding-lg cashier-link' . $block_class . '" data-aksrt-pay-content="' . esc_attr((string) $post->ID) . '"><i class="fa fas fa-shopping-cart" aria-hidden="true"></i> ' . esc_html__('立即购买', 'aksrt') . '</button>';
			} else {
				$button = '<a href="javascript:;" class="but jb-blue signin-loader padding-lg' . $block_class . '"><i class="fa fas fa-sign-in-alt mr10" aria-hidden="true"></i>' . esc_html__('登录购买', 'aksrt') . '</a>';
			}
		} elseif ($amount_minor > 0) {
			$button = '<button type="button" class="but ' . ($modo === 'points' ? 'jb-yellow' : 'jb-red') . ' padding-lg cashier-link' . $block_class . '" data-aksrt-pay-content="' . esc_attr((string) $post->ID) . '"><i class="fa fas fa-shopping-cart" aria-hidden="true"></i> ' . esc_html__('立即购买', 'aksrt') . '</button>';
		} else {
			$button = '<button type="button" class="but jb-blue padding-lg cashier-link' . $block_class . '" data-aksrt-pay-content="' . esc_attr((string) $post->ID) . '"><i class="fa fas fa-eye" aria-hidden="true"></i> ' . esc_html__('查看内容', 'aksrt') . '</button>';
		}
		$price = aksrt_get_show_pay_price_html($meta, $priced);
		$vip = aksrt_get_posts_vip_price($meta);
		$attrs = aksrt_get_pay_attributes_html($post, 'pay-attr');
		$count = $sales > 0 ? '<badge class="img-badge hot jb-blue px12">' . esc_html(sprintf(__('已售 %s', 'aksrt'), $sales)) . '</badge>' : '';
		$service = aksrt_get_pay_service_html('muted-2-color');
		$widget_service = $service !== '' ? '<div class="px12 muted-2-color">' . $service . '</div>' : '';
		$article_service = $service !== '' ? '<div class="px12 muted-2-color mt10 text-right">' . $service . '</div>' : '';
		$demo = aksrt_get_demo_link_html($post, 'but jb-yellow padding-lg');
		$demo_row = $demo !== '' ? '<div class="mt10">' . $demo . '</div>' : '';
        $discount = $modo === '0' ? aksrt_get_post_rebate_discount($post) : '0.00';
        $discount_text = aksrt_asset_price_minor($discount, '0') > 0
            ? sprintf(__('推广优惠 %s', 'aksrt'), (string) ($priced['currency'] ?? '￥') . aksrt_format_price($discount))
            : '';
        $discount_banner = $discount_text !== '' ? '<div class="text-center padding-6 jb-yellow px12">' . esc_html($discount_text) . '</div>' : '';

        if ($is_widget && aksrt_has_paid_access($post)) {
            $view_labels = [
                AKSRT_PAY_TYPE_DOWNLOAD => '<i class="fa fas fa-download fa-fw" aria-hidden="true"></i>' . esc_html__('获取下载地址', 'aksrt'),
                AKSRT_PAY_TYPE_GALLERY => '<i class="fa far fa-file-image fa-fw" aria-hidden="true"></i>' . esc_html__('查看图片', 'aksrt'),
                AKSRT_PAY_TYPE_VIDEO => '<i class="fa fas fa-play-circle fa-fw" aria-hidden="true"></i>' . esc_html__('查看视频', 'aksrt'),
            ];
            $view_label = $view_labels[$pay_type] ?? '<i class="fa far fa-dot-circle fa-fw" aria-hidden="true"></i>' . esc_html__('查看内容', 'aksrt');
			return '<div class="zib-widget pay-box pay-widget paid-box order-type-' . $order_type . '" style="padding:0">' . $tag . '<div class="relative-h ' . esc_attr($theme) . '" style="background-size:120%"><div class="pay-widget__orb pay-widget__orb--right ' . esc_attr($theme) . '"></div><div class="pay-widget__orb pay-widget__orb--left ' . esc_attr($theme) . '"></div><div class="relative box-body"><div class="text-center mt10 box-body"><p><i class="fa fas fa-shopping-bag fa-3x" aria-hidden="true"></i></p><b class="em14">' . esc_html__('已购买', 'aksrt') . '</b></div></div></div><div class="box-body">' . $widget_service . '<div class="mt10"><a href="#posts-pay" class="but padding-lg btn-block ' . esc_attr($theme) . '">' . $view_label . '</a></div>' . $demo_row . $attrs . '</div>' . $count . '</div>';
		}

		if ($is_widget) {
			return '<div class="zib-widget pay-box pay-widget order-type-' . $order_type . '" style="padding:0">' . $tag . '<div class="relative-h ' . esc_attr($theme) . '" style="background-size:120%"><div class="pay-widget__orb pay-widget__orb--right ' . esc_attr($theme) . '"></div><div class="pay-widget__orb pay-widget__orb--left ' . esc_attr($theme) . '"></div><div class="relative box-body"><div class="text-center mt10">' . $price . '</div></div><div class="relative">' . $vip . '</div></div>' . $discount_banner . '<div class="box-body">' . $widget_service . '<div class="mt10">' . $button . '</div>' . $demo_row . $attrs . '</div>' . $count . '</div>';
		}

        $thumb = get_the_post_thumbnail($post, 'medium', ['class' => 'fit-cover', 'alt' => '']);
        if ($thumb === '') {
            $thumb = '<div class="pay-thumb-placeholder"><i class="fa fas fa-lock" aria-hidden="true"></i></div>';
        }
		$graphic_actions = '';
		if ($demo !== '' || $discount_text !== '') {
			$graphic_actions = '<div class="abs-center text-center left-bottom">';
			$graphic_actions .= $demo !== '' ? '<div>' . $demo . '</div>' : '';
			$graphic_actions .= $discount_text !== '' ? '<div class="padding-6 jb-red px12 hidden-xs">' . esc_html($discount_text) . '</div>' : '';
			$graphic_actions .= '</div>';
		}
		$discount_mobile = $discount_text !== '' ? '<div class="visible-xs-block badg c-red px12 mb6">' . esc_html($discount_text) . '</div>' : '';
        if ($pay_type === AKSRT_PAY_TYPE_GALLERY) {
            $gallery_count = count((array) ($meta['gallery'] ?? []));
			$graphic = '<div class="flex0 relative mr20 hide-sm pay-thumb"><div class="graphic"><div class="blur-10 absolute">' . $thumb . '</div><div class="absolute graphic-mask" style="opacity:.3"></div><div class="abs-center text-center">' . esc_html(sprintf(__('共%s张图片', 'aksrt'), $gallery_count)) . '<br>' . esc_html__('请付费后查看', 'aksrt') . '</div>' . $graphic_actions . '</div></div>';
		} elseif ($pay_type === AKSRT_PAY_TYPE_VIDEO) {
			$graphic = '<div class="flex0 relative mr20 hide-sm pay-thumb"><div class="graphic">' . $thumb . '<div class="absolute graphic-mask" style="opacity:.2"></div><div class="abs-center text-center"><i class="fa far fa-play-circle fa-4x opacity8" aria-hidden="true"></i></div>' . $graphic_actions . '</div></div>';
		} else {
			$graphic = '<div class="flex0 relative mr20 hide-sm pay-thumb"><div class="graphic">' . $thumb . $graphic_actions . '</div></div>';
		}
		$demo_mobile = $demo !== '' ? '<div class="mt10 visible-xs-block">' . $demo . '</div>' : '';
		return '<div class="zib-widget pay-box order-type-' . $order_type . '" id="posts-pay"><div class="flex pay-flexbox">' . $graphic . '<div class="flex-auto-h flex xx jsb"><dt class="text-ellipsis pay-title">' . esc_html($title) . '</dt><div class="mt6 em09 muted-2-color">' . wp_kses_post($doc) . '</div><div>' . $price . '</div>' . $discount_mobile . ($vip !== '' ? '<div>' . $vip . '</div>' : '') . '<div class="text-right mt10">' . $button . '</div></div></div>' . $article_service . $demo_mobile . $attrs . $tag . $count . '</div>';
    }
}

/**
 * Resolve the paid order that granted access to a post, when access came from
 * an actual purchase rather than a free or VIP entitlement.
 *
 * @return array<string,mixed>|null
 */
if (!function_exists('aksrt_get_current_content_paid_order')) {
	function aksrt_get_current_content_paid_order(WP_Post $post): ?array {
		if (is_user_logged_in()) {
			return aksrt_get_user_content_paid_order($post->ID);
		}

		return aksrt_get_guest_content_paid_order($post->ID);
	}
}

/**
 * Reference-theme download actions used inside the purchased article card.
 */
if (!function_exists('aksrt_get_paid_download_actions_html')) {
	function aksrt_get_paid_download_actions_html(array $meta): string {
		$downloads = is_array($meta['downloads'] ?? null) ? array_values($meta['downloads']) : [];
		if ($downloads === []) {
			return '<div class="muted-2-color text-center">' . esc_html__('暂无可下载资源', 'aksrt') . '</div>';
		}

		// 下载总开关关闭 = 直连模式：按钮直接输出原始地址，不走本站中转链接。
		$direct_download = class_exists('\AKSRT\Content\Download')
			&& !\AKSRT\Content\Download::get_instance()->is_enabled();

		$buttons = '';
		foreach ($downloads as $index => $download) {
			if (!is_array($download)) {
				continue;
			}
			$url = (string) ($download['url'] ?? '');
			if ($direct_download && $url === '') {
				// 直连模式没有可用的原始地址，空源不渲染。
				continue;
			}
			$label = trim((string) ($download['label'] ?? ''));
			$service = function_exists('aksrt_detect_cloud_service')
				? aksrt_detect_cloud_service($url)
				: ['key' => 'other', 'name' => __('本地下载', 'aksrt')];
			if ($label === '') {
				$label = (string) ($service['name'] ?? __('本地下载', 'aksrt'));
			}
			$type = sanitize_key((string) ($download['type'] ?? 'direct'));
			$extract_code = trim((string) ($download['extract_code'] ?? ''));
			$has_extract = $extract_code !== '';
			$service_key = sanitize_html_class((string) ($service['key'] ?? 'other')) ?: 'other';
			$button_class = trim((string) ($download['class'] ?? ''));
			$button_class = $button_class !== '' ? $button_class : 'b-theme ' . $service_key;
			$copy_value = trim((string) ($download['copy_val'] ?? ''));
			$copy_key = trim((string) ($download['copy_key'] ?? ''));
			$copy_label = $extract_code !== '' ? $extract_code : ($copy_key !== '' ? $copy_key : __('更多内容', 'aksrt'));

			$buttons .= '<div class="but-download flex ac">';
			if ($direct_download) {
				$buttons .= '<a class="mr10 but ' . esc_attr($button_class) . '" href="' . esc_url($url) . '" target="_blank" rel="nofollow noopener">';
				$buttons .= '<i class="fa fas fa-download" aria-hidden="true"></i>' . esc_html($label) . '</a>';
			} else {
				$buttons .= '<button type="button" class="mr10 but ' . esc_attr($button_class) . '" data-action="aksrt-download" data-source-index="' . esc_attr((string) $index) . '" data-source-type="' . esc_attr($type) . '" data-has-extract="' . ($has_extract ? '1' : '0') . '">';
				$buttons .= '<i class="fa fas fa-download" aria-hidden="true"></i>' . esc_html($label) . '</button>';
			}
			if ($copy_value !== '') {
				$buttons .= '<button type="button" class="but" data-clipboard-tag="' . esc_attr($copy_key !== '' ? $copy_key : __('内容', 'aksrt')) . '" data-clipboard-text="' . esc_attr($copy_value) . '">' . esc_html($copy_label) . '</button>';
			} elseif ($extract_code !== '') {
				$buttons .= '<span class="badg">' . esc_html($extract_code) . '</span>';
			}
			$buttons .= '</div>';
		}

		return $buttons !== ''
			? '<div class="flex ac hh">' . $buttons . '</div>'
			: '<div class="muted-2-color text-center">' . esc_html__('暂无可下载资源', 'aksrt') . '</div>';
	}
}

/**
 * Purchased article card matching Zibll's paid-box structure.
 */
if (!function_exists('aksrt_get_paid_box_html')) {
	function aksrt_get_paid_box_html(WP_Post $post): string {
		if (!aksrt_has_paid_access($post)) {
			return '';
		}

		$meta = aksrt_get_pay_meta($post);
		$pay_type = (string) ($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO);
		if ($pay_type === AKSRT_PAY_TYPE_NO) {
			return '';
		}

		$order_types = [
			AKSRT_PAY_TYPE_READING => 1,
			AKSRT_PAY_TYPE_DOWNLOAD => 2,
			AKSRT_PAY_TYPE_GALLERY => 5,
			AKSRT_PAY_TYPE_VIDEO => 6,
			AKSRT_PAY_TYPE_VIP => 4,
		];
		$type_labels = [
			AKSRT_PAY_TYPE_READING => __('付费阅读', 'aksrt'),
			AKSRT_PAY_TYPE_DOWNLOAD => __('付费下载', 'aksrt'),
			AKSRT_PAY_TYPE_GALLERY => __('付费图库', 'aksrt'),
			AKSRT_PAY_TYPE_VIDEO => __('付费视频', 'aksrt'),
			AKSRT_PAY_TYPE_VIP => __('VIP 专属', 'aksrt'),
		];
		$order_type = (int) ($order_types[$pay_type] ?? 1);
		$type_label = (string) ($type_labels[$pay_type] ?? __('付费内容', 'aksrt'));
		$title = get_the_title($post);
		$sales = max(0, (int) ($meta['virtual_sales'] ?? 0));
		$sales += max(0, (int) get_post_meta($post->ID, \AKSRT\Core\DomainModel::RESOURCE_SALES_VOLUME_KEY, true));
		$count = $sales > 0 ? '<badge class="img-badge hot jb-blue px12">' . esc_html(sprintf(__('已售 %s', 'aksrt'), $sales)) . '</badge>' : '';
		$order = aksrt_get_current_content_paid_order($post);
		$priced = aksrt_get_user_pay_price($post);
		$vip_level = max(0, min(2, (int) ($priced['vip_level'] ?? 0)));
		$header = '';
		$paid_box = '';

		if (is_array($order)) {
			$order_number = (string) ($order['order_number'] ?? '');
			$paid_at = (string) ($order['paid_at'] ?? $order['created_at'] ?? '');
			$order_currency = (string) ($order['currency'] ?? '');
			$order_amount = $order['amount'] ?? '0.00';
			if ($order_currency === 'points') {
				$currency_name = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_currency_name() : __('积分', 'aksrt');
				$amount_text = aksrt_format_price($order_amount) . ' ' . $currency_name;
			} else {
				$cash_symbol = '￥';
				if (class_exists('\AKSRT\Settings\Settings')) {
					$settings = \AKSRT\Settings\Settings::get_paid_content_settings();
					$cash_symbol = (string) ($settings['display']['currency_symbol'] ?? '￥');
				}
				$amount_text = $cash_symbol . aksrt_format_price($order_amount);
			}
			$paid_info = '<div class="flex jsb"><span>' . esc_html__('订单号', 'aksrt') . '</span><span>' . esc_html($order_number) . '</span></div>';
			if ($paid_at !== '') {
				$paid_info .= '<div class="flex jsb"><span>' . esc_html__('支付时间', 'aksrt') . '</span><span>' . esc_html($paid_at) . '</span></div>';
			}
			$paid_info .= '<div class="flex jsb"><span>' . esc_html__('支付金额', 'aksrt') . '</span><span>' . esc_html($amount_text) . '</span></div>';
			$paid_box = '<div class="flex ac jb-green padding-10 em09"><div class="text-center flex-auto"><div class="mb6"><i class="fa fas fa-shopping-bag fa-2x" aria-hidden="true"></i></div><b class="em12">' . esc_html__('已购买', 'aksrt') . '</b></div><div class="em09 paid-info flex-auto">' . $paid_info . '</div></div>';
		} elseif ($vip_level > 0 || $pay_type === AKSRT_PAY_TYPE_VIP) {
			$level = max(1, $vip_level);
			$price_label = aksrt_get_pay_price_label($post);
			$price = '<div class="price-box"><div class="text-center"><b class="em3x">' . esc_html((string) ($price_label['text'] ?? '')) . '</b></div></div>';
			$paid_box = '<div class="flex jsb ac payvip-icon box-body vipbg-v' . esc_attr((string) $level) . '">' . $price . '<div class="flex0"><b class="em12"><i class="fa fas fa-certificate mr10 em12" aria-hidden="true"></i>' . esc_html(sprintf(__('VIP%d 会员免费', 'aksrt'), $level)) . '</b></div></div>';
		} else {
			$type_label = str_replace(__('付费', 'aksrt'), __('免费', 'aksrt'), $type_label);
		}

		if ($pay_type === AKSRT_PAY_TYPE_GALLERY) {
			$header = aksrt_render_paid_gallery($post);
		} elseif ($pay_type === AKSRT_PAY_TYPE_VIDEO) {
			$header = aksrt_render_paid_video($post);
		}

		$download_box = '';
		$root_data = '';
		$captcha = '';
		if ($pay_type === AKSRT_PAY_TYPE_DOWNLOAD) {
			$captcha_active = function_exists('aksrt_is_captcha_enabled_for') && aksrt_is_captcha_enabled_for('download');
			$root_data = ' data-aksrt-download-box data-post-id="' . esc_attr((string) $post->ID) . '" data-captcha="' . ($captcha_active ? '1' : '0') . '"';
			$download_box = '<div class="hidden-box show"><div class="hidden-text"><i class="fa fas fa-download mr6" aria-hidden="true"></i>' . esc_html__('资源下载', 'aksrt') . '</div>' . aksrt_get_paid_download_actions_html($meta) . '</div>';
			$demo = aksrt_get_demo_link_html($post, 'but jb-yellow padding-lg');
			if ($demo !== '') {
				$download_box .= '<div class="mt10">' . $demo . '</div>';
			}
			$download_box .= aksrt_get_pay_attributes_html($post, 'pay-attr');
			if ($captcha_active && function_exists('aksrt_render_captcha')) {
				ob_start();
				aksrt_render_captcha('download');
				$captcha = '<div class="resource-download-box__captcha resource-download-box__captcha--hidden" data-aksrt-download-captcha>' . (string) ob_get_clean() . '</div>';
			}
		}

		$service = aksrt_get_pay_service_html('inline-block ml10');
		$service = $service !== '' ? '<div class="px12 muted-2-color mt10 text-right">' . $service . '</div>' : '';
		$title_style = $count !== '' ? ' style="padding-right:48px"' : '';
		$body_class = 'box-body relative' . ($pay_type === AKSRT_PAY_TYPE_VIDEO ? ' dplayer-featured' : '');

		return '<div class="pay-box zib-widget paid-box order-type-' . $order_type . '" id="posts-pay"' . $root_data . '>'
			. $header
			. $paid_box
			. '<div class="' . esc_attr($body_class) . '">'
			. $count
			. '<div' . $title_style . '><span class="badg c-red hollow badg-sm mr6">' . esc_html($type_label) . '</span><b>' . esc_html($title) . '</b></div>'
			. $download_box
			. $service
			. $captcha
			. '</div></div>';
	}
}

// ============================================================
// 付费图库轮播（Swiper）
// ============================================================

if (!function_exists('aksrt_render_paid_gallery')) {
    function aksrt_render_paid_gallery(WP_Post $post): string {
        $meta = aksrt_get_pay_meta($post);
        if ($meta['pay_type'] !== AKSRT_PAY_TYPE_GALLERY) return '';

        $images = $meta['gallery'] ?? [];
        if (empty($images)) return '';

        if (!aksrt_has_paid_access($post)) return '';
		$count = count($images);
		$backdrop = (string) end($images);

        ob_start();
        ?>
        <div class="relative-h paid-gallery aksrt-paid-gallery" data-post-id="<?php echo esc_attr((string) $post->ID); ?>">
			<div class="absolute blur-10 opacity3"><img<?php echo aksrt_get_lazy_attr('lazy_other', $backdrop, 'fit-cover', aksrt_get_lazy_thumb('lg')); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> alt=""></div>
			<div style="margin-top:-20px" class="relative mb6"><span class="badg b-theme badg-sm"><?php echo esc_html(sprintf(__('共%s张图片', 'aksrt'), $count)); ?></span></div>
            <div class="new-swiper swiper-container swiper-scroll aksrt-paid-gallery__swiper" data-loop="true">
                <div class="swiper-wrapper">
					<?php foreach ($images as $index => $img_url) : ?>
                        <div class="swiper-slide mr10" style="width:150px">
							<div class="graphic" style="padding-bottom:100%!important">
								<img<?php echo aksrt_get_lazy_attr('lazy_other', (string) $img_url, 'fit-cover', aksrt_get_lazy_thumb('lg')); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> alt="">
								<div class="abs-center right-top"><badge class="b-black opacity8 mr6 mt6"><?php echo esc_html(($index + 1) . '/' . $count); ?></badge></div>
							</div>
                        </div>
                    <?php endforeach; ?>
                </div>
                <div class="swiper-button-prev"></div>
                <div class="swiper-button-next"></div>
            </div>
        </div>

        <?php
        return ob_get_clean();
    }
}

// ============================================================
// 付费视频播放器
// ============================================================

if (!function_exists('aksrt_render_paid_video')) {
    function aksrt_render_paid_video(WP_Post $post): string {
        $meta = aksrt_get_pay_meta($post);
        if ($meta['pay_type'] !== AKSRT_PAY_TYPE_VIDEO) return '';

        $video_url = $meta['video_url'] ?? '';
        if (empty($video_url)) return '';

        if (!aksrt_has_paid_access($post)) return '';

        ob_start();
        ?>
        <div class="aksrt-paid-video" data-post-id="<?php echo esc_attr((string) $post->ID); ?>">
            <div class="aksrt-paid-video__player">
				<?php if (preg_match('/\.(mp4|webm|ogg)$/i', $video_url)) : ?>
					<video controls preload="metadata"<?php echo aksrt_is_lazy('lazy_posts_content') ? ' class="lazyload" src="" data-src="' . esc_url($video_url) . '"' : ' src="' . esc_url($video_url) . '"'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> style="width:100%;border-radius:var(--radius-lg);">
						<?php esc_html_e('您的浏览器不支持视频播放。', 'aksrt'); ?>
					</video>
				<?php else : ?>
					<div class="aksrt-paid-video__embed">
						<iframe<?php echo aksrt_is_lazy('lazy_posts_content') ? ' class="lazyload" src="" data-src="' . esc_url($video_url) . '"' : ' src="' . esc_url($video_url) . '"'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> frameborder="0" allowfullscreen></iframe>
					</div>
                <?php endif; ?>
            </div>
        </div>
        <?php
        return ob_get_clean();
    }
}

// ============================================================
// 内容过滤钩子（注册在 core-hooks.php）
// ============================================================

// 这些函数供 core-hooks.php 中的 the_content 过滤器调用
if (!function_exists('aksrt_paid_content_filter')) {
    function aksrt_paid_content_filter(string $content): string {
        if (is_admin() || !is_singular() || !in_the_loop() || !is_main_query()) {
            return $content;
        }
        global $post;
        if (!($post instanceof WP_Post)) {
            return $content;
        }
        $meta = aksrt_get_pay_meta($post);
        $pay_type = (string) ($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO);
        // Reading is protected only by the payshow shortcode. Never replace
        // the entire article body with a post-level purchase wall.
        if ($pay_type === AKSRT_PAY_TYPE_READING) {
            return $content;
        }
        if (aksrt_can_access_content($post)) {
            return $content;
        }
        if (!in_array($pay_type, [AKSRT_PAY_TYPE_GALLERY, AKSRT_PAY_TYPE_VIDEO], true)) {
            return $content;
        }

        // Only the configured teaser remains in the article body. The single
        // template owns the one canonical purchase card for gallery/video.
        $preview = trim((string) ($meta['free_preview'] ?? ''));
        return $preview !== '' ? '<div class="aksrt-paywall-preview">' . wp_kses_post($preview) . '</div>' : '';
    }
}

// ============================================================
// 付费图库/视频样式
// ============================================================

add_action('wp_head', function (): void {
    if (is_admin() || !is_singular()) return;
    global $post;
    if (!($post instanceof WP_Post)) return;

    $meta = aksrt_get_pay_meta($post);
    if (!in_array($meta['pay_type'], [AKSRT_PAY_TYPE_GALLERY, AKSRT_PAY_TYPE_VIDEO], true)) return;
    ?>
    <style>
	.aksrt-paid-video{margin:0}
    .aksrt-paid-video__embed{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--radius-lg)}
    .aksrt-paid-video__embed iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}
    </style>
    <?php
});