feat(pay): wire VIP-tier pricing into cost, gates, and download box

Resolve user-facing pay amounts via aksrt_get_user_pay_price (cash/points +
VIP1/2 tiers), surface pay_modo/pay_limit through download meta and REST policy,
and tighten content-visibility / download-box UX for member-only and purchase
gates while improving local stream throttle math.

inc/classes/class-aksrt-content-visibility.php

@@ -38,7 +38,17 @@ class AKSRT_Content_Visibility {
             ? aksrt_get_pay_meta($resource_post)
             : AKSRT_Domain_Model::default_pay_meta();
         $pay_type = AKSRT_Domain_Model::normalize_pay_type((string) ($pay_meta['pay_type'] ?? AKSRT_Domain_Model::PAY_TYPE_NO));
-        $price = (float) ($pay_meta['price'] ?? 0);
+        $priced = function_exists('aksrt_get_user_pay_price')
+            ? aksrt_get_user_pay_price($resource_post, $uid)
+            : null;
+        $pay_modo = is_array($priced)
+            ? ((($priced['modo'] ?? '0') === 'points') ? 'points' : '0')
+            : ((($pay_meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0');
+        $price = is_array($priced)
+            ? (float) ($priced['amount'] ?? 0)
+            : (($pay_modo === 'points')
+                ? (float) ($pay_meta['points_price'] ?? 0)
+                : (float) ($pay_meta['price'] ?? 0));
         $paid_settings = class_exists('AKSRT_Settings')
             ? AKSRT_Settings::get_paid_content_settings()
             : [
@@ -50,6 +60,7 @@ class AKSRT_Content_Visibility {
         $state = [
             'post_id' => $resource_post instanceof WP_Post ? (int) $resource_post->ID : 0,
             'pay_type' => $pay_type,
+            'pay_modo' => $pay_modo,
             'price' => $price,
             'need_login' => false,
             'need_purchase' => false,
@@ -59,6 +70,8 @@ class AKSRT_Content_Visibility {
             'can_view' => true,
             'can_download' => true,
             'download_cost' => 0,
+            'pay_limit' => 0,
+            'user_vip_level' => 0,
         ];
 
         if (!($resource_post instanceof WP_Post)) {
@@ -68,20 +81,16 @@ class AKSRT_Content_Visibility {
         }
 
         if ($pay_type === AKSRT_Domain_Model::PAY_TYPE_NO) {
+            $state['has_paid_access'] = true;
             return $state;
         }
 
         $has_free_access = $price <= 0 && $pay_type !== AKSRT_Domain_Model::PAY_TYPE_VIP;
-        // Prefer points_price when pay_modo=points.
-        if (is_array($pay_meta) && (($pay_meta['pay_modo'] ?? '0') === 'points')) {
-            $price = (float) ($pay_meta['points_price'] ?? $price);
-            $state['price'] = $price;
-            $has_free_access = $price <= 0 && $pay_type !== AKSRT_Domain_Model::PAY_TYPE_VIP;
-        }
         $pay_limit = (int) ($pay_meta['pay_limit'] ?? 0);
         if (!in_array($pay_limit, [0, 1, 2], true)) {
             $pay_limit = 0;
         }
+        $state['pay_limit'] = $pay_limit;
         $has_paid_order = false;
 
         if ($uid > 0 && class_exists('AKSRT_Order')) {
@@ -93,47 +102,60 @@ class AKSRT_Content_Visibility {
         }
 
         $has_vip_access = false;
-        $user_vip_level = 0;
+        $user_vip_level = is_array($priced) ? (int) ($priced['vip_level'] ?? 0) : 0;
         if ($uid > 0) {
-            if (function_exists('aksrt_get_user_vip_level')) {
+            if ($user_vip_level <= 0 && function_exists('aksrt_get_user_vip_level')) {
                 $user_vip_level = aksrt_get_user_vip_level($uid);
             }
             if (function_exists('aksrt_is_vip_exempt') && aksrt_is_vip_exempt($uid)) {
                 $has_vip_access = true;
                 $user_vip_level = max($user_vip_level, 2);
-            } elseif (function_exists('aksrt_is_vip') && ($pay_type === AKSRT_Domain_Model::PAY_TYPE_VIP || $pay_limit > 0)) {
+            } elseif ($pay_type === AKSRT_Domain_Model::PAY_TYPE_VIP || $pay_limit > 0) {
                 $has_vip_access = $user_vip_level >= max(1, $pay_limit);
             } elseif ($user_vip_level > 0) {
+                // VIP tier pricing may zero cost; still track membership.
                 $has_vip_access = $pay_limit <= 0 || $user_vip_level >= $pay_limit;
             }
         }
+        $state['user_vip_level'] = $user_vip_level;
 
         // Member-only purchase restriction (Zibll pay_limit).
         if ($pay_limit > 0 && $pay_type !== AKSRT_Domain_Model::PAY_TYPE_NO) {
             $state['need_vip'] = true;
-            $state['pay_limit'] = $pay_limit;
-            $allowed_member = $has_vip_access && $user_vip_level >= $pay_limit;
+            $allowed_member = $uid > 0 && $user_vip_level >= $pay_limit;
             if ($pay_type === AKSRT_Domain_Model::PAY_TYPE_DOWNLOAD) {
                 $download_cost = function_exists('aksrt_resource_download_cost')
                     ? (int) aksrt_resource_download_cost($resource_post)
                     : (int) ceil($price);
+                // If member is free via VIP price, cost is 0.
+                if ($allowed_member && $price <= 0) {
+                    $download_cost = 0;
+                }
                 $state['download_cost'] = max(0, $download_cost);
                 $state['need_login'] = $uid <= 0;
                 $state['need_purchase'] = $allowed_member && $state['download_cost'] > 0 && !$has_paid_order;
-                $state['has_paid_access'] = $allowed_member && ($has_paid_order || $state['download_cost'] <= 0 || $has_vip_access);
+                $state['has_paid_access'] = $allowed_member && ($has_paid_order || $state['download_cost'] <= 0);
                 $state['can_view'] = true;
-                $state['can_download'] = $allowed_member && ($uid > 0) && ($has_paid_order || $state['download_cost'] <= 0 || $has_vip_access);
+                $state['can_download'] = $allowed_member && ($uid > 0) && ($has_paid_order || $state['download_cost'] <= 0);
                 if (!$allowed_member) {
                     $state['can_download'] = false;
                     $state['has_paid_access'] = false;
+                    $state['need_purchase'] = false;
                 }
                 return $state;
             }
 
-            $state['has_paid_access'] = $allowed_member || $has_paid_order;
+            $state['has_paid_access'] = ($allowed_member && $price <= 0) || $has_paid_order || ($allowed_member && $has_vip_access && $pay_type === AKSRT_Domain_Model::PAY_TYPE_VIP);
+            // For reading/gallery/video with pay_limit: members still need to purchase unless free.
+            if ($allowed_member) {
+                $state['has_paid_access'] = $has_paid_order || $price <= 0;
+                $state['need_purchase'] = !$state['has_paid_access'];
+            } else {
+                $state['has_paid_access'] = false;
+                $state['need_purchase'] = false;
+            }
             $state['can_view'] = $state['has_paid_access'];
             $state['can_download'] = false;
-            $state['need_purchase'] = !$state['has_paid_access'];
             return $state;
         }
 
@@ -149,10 +171,23 @@ class AKSRT_Content_Visibility {
                 || !empty($pay_meta['require_login'])
                 || ($free_logged_show && $state['download_cost'] <= 0);
             $state['require_captcha'] = !empty($paid_settings['download_captcha']) || !empty($pay_meta['require_captcha']);
-            $state['need_purchase'] = !$has_vip_access && $state['download_cost'] > 0;
-            $state['has_paid_access'] = $has_vip_access || $has_paid_order || !$state['need_purchase'];
+            // Cash mode with cost handled by orders: need purchase when no order and base price > 0.
+            $needs_pay = $state['download_cost'] > 0 || ($pay_modo === '0' && $price > 0 && !$has_paid_order && empty($paid_settings['download_credit']));
+            if ($pay_modo === '0' && $price > 0 && empty($paid_settings['download_credit'])) {
+                $state['need_purchase'] = !$has_paid_order && !($has_vip_access && $price <= 0);
+                $state['has_paid_access'] = $has_paid_order || $price <= 0;
+                // Download still gated by login/credit path for token; cash unlock is order-based.
+                $state['can_view'] = true;
+                $state['can_download'] = ($has_paid_order || $price <= 0) && (!$state['need_login'] || $uid > 0);
+                return $state;
+            }
+
+            $state['need_purchase'] = !$has_paid_order && $state['download_cost'] > 0 && !$has_free_access;
+            // VIP with free tier amount already reflected in download_cost.
+            $state['has_paid_access'] = $has_paid_order || $state['download_cost'] <= 0 || $has_free_access;
             $state['can_view'] = true;
-            $state['can_download'] = !$state['need_login'] || $uid > 0;
+            $state['can_download'] = (!$state['need_login'] || $uid > 0) && ($has_paid_order || $state['download_cost'] <= 0 || true);
+            // can_download true only means "may request token"; rest_request still deducts credits.
 
             return $state;
         }
@@ -167,8 +202,13 @@ class AKSRT_Content_Visibility {
         }
 
         $state['need_login'] = !empty($pay_meta['require_login']);
-        $state['need_purchase'] = !$has_free_access;
-        $state['has_paid_access'] = $has_free_access || $has_paid_order || $has_vip_access;
+        $state['need_purchase'] = !$has_free_access && !$has_paid_order;
+        $state['has_paid_access'] = $has_free_access || $has_paid_order;
+        // VIP free tier for reading etc. via amount.
+        if (!$state['has_paid_access'] && $price <= 0 && $pay_type !== AKSRT_Domain_Model::PAY_TYPE_VIP) {
+            $state['has_paid_access'] = true;
+            $state['need_purchase'] = false;
+        }
         $state['can_view'] = $state['has_paid_access'] && (!$state['need_login'] || $uid > 0);
         $state['can_download'] = false;
 
@@ -217,6 +257,26 @@ class AKSRT_Content_Visibility {
             ]);
         }
 
+        // Member-only (pay_limit).
+        if (!empty($state['need_vip']) && empty($state['has_paid_access']) && empty($state['can_download'])) {
+            $need_level = (int) ($state['pay_limit'] ?? 1);
+            return new WP_Error('aksrt_need_vip', sprintf(
+                /* translators: %d: required VIP level */
+                __('该资源仅限 VIP%s 及以上会员购买/下载。', 'aksrt'),
+                max(1, $need_level)
+            ), [
+                'status' => 403,
+                'pay_limit' => $need_level,
+            ]);
+        }
+
+        // Cash purchase required (order path).
+        if (!empty($state['need_purchase']) && empty($state['has_paid_access']) && $cost <= 0 && (($state['pay_modo'] ?? '0') === '0')) {
+            return new WP_Error('aksrt_need_purchase', __('请先购买后再下载。', 'aksrt'), [
+                'status' => 402,
+            ]);
+        }
+
         // Zibll daily free-download quota.
         if ($cost <= 0 && function_exists('aksrt_check_free_download_quota')) {
             $quota = aksrt_check_free_download_quota($uid, $cost);
@@ -225,7 +285,12 @@ class AKSRT_Content_Visibility {
             }
         }
 
-        if (!empty($paid_settings['download_credit']) && $cost > 0) {
+        $pay_modo = (string) ($state['pay_modo'] ?? '0');
+        $need_credit_check = $cost > 0 && (
+            $pay_modo === 'points'
+            || !empty($paid_settings['download_credit'])
+        );
+        if ($need_credit_check) {
             $balance = class_exists('AKSRT_Credits') ? AKSRT_Credits::balance($uid) : 0;
             if ($balance < $cost) {
                 return new WP_Error('aksrt_credits_insufficient', __('积分不足，无法下载。', 'aksrt'), [

inc/classes/class-aksrt-download.php

@@ -114,6 +114,11 @@ class AKSRT_Download {
         $paid_settings = AKSRT_Settings::get_paid_content_settings();
         $cost = aksrt_resource_download_cost($post);
         $uid = get_current_user_id();
+        $priced = function_exists('aksrt_get_user_pay_price') ? aksrt_get_user_pay_price($post, $uid) : null;
+        $pay_modo = is_array($priced)
+            ? ((($priced['modo'] ?? '0') === 'points') ? 'points' : '0')
+            : ((($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0');
+        $display_price = is_array($priced) ? (float) ($priced['amount'] ?? 0) : (float) ($meta['price'] ?? 0);
 
         $need_captcha = !empty($paid_settings['download_captcha']) || !empty($meta['require_captcha']);
         if ($need_captcha && function_exists('aksrt_is_captcha_enabled_for') && !aksrt_is_captcha_enabled_for('download')) {
@@ -122,7 +127,10 @@ class AKSRT_Download {
 
         return new WP_REST_Response([
             'post_id'         => $post_id,
-            'price'           => (float) $meta['price'],
+            'price'           => $display_price,
+            'base_price'      => is_array($priced) ? (float) ($priced['base'] ?? $display_price) : (float) ($meta['price'] ?? 0),
+            'pay_modo'        => $pay_modo,
+            'pay_limit'       => (int) ($meta['pay_limit'] ?? 0),
             'cost'            => $cost,
             'require_login'   => !empty($paid_settings['download_login']) || !empty($meta['require_login']) || (!empty($paid_settings['free_logged_show']) && $cost <= 0),
             'require_captcha' => $need_captcha,
@@ -139,7 +147,7 @@ class AKSRT_Download {
                     'type'        => $row['type'] ?? 'direct',
                     'has_extract' => $extract_code !== '',
                 ];
-            }, $meta['downloads'], array_keys($meta['downloads'])),
+            }, $meta['downloads'] ?? [], array_keys($meta['downloads'] ?? [])),
         ], 200);
     }
 
@@ -354,14 +362,25 @@ class AKSRT_Download {
         header('Content-Length: ' . (string) $size);
 
         $chunk = 1024 * 64; // 64KB
+        $sleep_us = 0;
         if ($speed_kb > 0) {
-            $chunk = max(1024, min($chunk, $speed_kb * 1024));
+            // Emit ~speed_kb KB per second using fixed 64KB chunks when possible.
+            $bytes_per_sec = max(1024, $speed_kb * 1024);
+            $chunk = min(1024 * 64, $bytes_per_sec);
+            $chunk = max(1024, $chunk);
+            // Sleep so chunk_bytes / second ≈ bytes_per_sec.
+            $sleep_us = (int) max(0, (int) round(($chunk / $bytes_per_sec) * 1000000) - 1000);
         }
 
         $fh = fopen($path, 'rb');
         if (!$fh) {
             $this->fail_410();
         }
+        // Disable output compression for accurate Content-Length / throttle.
+        if (function_exists('apache_setenv')) {
+            @apache_setenv('no-gzip', '1');
+        }
+        @ini_set('zlib.output_compression', 'Off');
         while (!feof($fh)) {
             $buf = fread($fh, $chunk);
             if ($buf === false) {
@@ -371,9 +390,8 @@ class AKSRT_Download {
             if (function_exists('flush')) {
                 flush();
             }
-            if ($speed_kb > 0) {
-                // Approximate throttle: sleep 1s per speed_kb window when chunk ~= speed_kb KB.
-                usleep(200000); // 0.2s per chunk for smoother throttle
+            if ($sleep_us > 0) {
+                usleep($sleep_us);
             }
         }
         fclose($fh);