midi-php/application/api/model/BlindBoxTurntableGiftDrawWorldNew.php

<?php

namespace app\api\model;
use app\common\controller\Push;
use think\Cache;
use think\Log;
use think\Model;
use think\Db;
use think\Session;
use Redis;
/*
 * 盲盒转盘优化后方法
 *
 */
class BlindBoxTurntableGiftDrawWorldNew extends Model
{
    private $redis;

    public function __construct()
    {
        parent::__construct();
        try {
            $this->redis = new Redis();
            // 连接到Redis服务器
            $this->redis->connect(config('redis.host'), config('redis.port')); // 根据实际配置调整主机和端口
            // 选择数据库1
            $this->redis->select(1);
            $this->cache_time = 60 *24;
        } catch (\Exception $e) {
            Log::record('Redis连接失败: ' . $e->getMessage(), 'error');
            $this->redis = null;
        }
    }

    /**
     * 重构后的抽奖方法 - 优化响应速度
     */
    public function draw_gift($gift_bag_id, $user_id, $gift_user_ids, $num = 1, $room_id = 0, $heart_id = 0,$auction_id = 0)
    {
        try {
            // 收礼人
            $gift_user_ids = explode(',', $gift_user_ids);
            $total_num   = $num * count($gift_user_ids); //总数量
            $bag_data    = $this->getCachedGiftBag($gift_bag_id);  //获取转盘信息
            $total_price = $bag_data['gift_price'] * $total_num; //礼包支付总价格
            $periods     = $bag_data['periods']; //期数
            //1. 验证参数并提前处理错误
            $validationResult = $this->validateDrawParameters($gift_bag_id, $user_id, $gift_user_ids,$total_price);
            if ($validationResult !== true) {
                return $validationResult;
            }
            //2.预计算抽奖结果
            $precomputeResult = $this->precomputeDrawResults($gift_bag_id, $total_num, $gift_user_ids,$periods );
            $precomputedResults = $precomputeResult['precomputedResults']; //预计算结果集
            $availableGiftss = $precomputeResult['precomputedResultss']; //可用礼物/需更新的礼物/需更新

            if (count($precomputedResults) != $total_num) {
                // 记录错误到Redis
                // 使用正确的Redis方法存储数据
                $key = 'blind_box_draw_world_errors_' . date('Y-m-d-H-i-s');
                $errorData = [
                    'total_num' => $total_num,
                    'actual_num' => count($precomputedResults),
                    'room_id' => $room_id,
                    'user_id' => $user_id,
                    'gift_bag_id' => $gift_bag_id,
                    'num' => $num,
                    'gift_user_ids' => $gift_user_ids,
                    'precomputedResults' => $precomputedResults,
                ];
                $this->redis->setex($key, 86400 * 7, "超出数量".json_encode($errorData));
                return ['code' => 0, 'msg' => '网络加载失败，请重试！', 'data' => null];
            }
            $giftCounts = $this->countGifts($precomputedResults);
            foreach ($giftCounts as $giftId => $count) {
                if($count['count'] > $count['quantity']){
                    $key = 'blind_box_draw_world_errors_' . date('Y-m-d-H-i-s');
                    $errorData = [
                        'count' => $count['count'],
                        'quantity' => $count['quantity'],
                        'gift_bag_id' => $gift_bag_id,
                        'user_id' => $user_id,
                        'gift_user_ids' => $gift_user_ids,
                        'num' => $num,
                        'giftUserCountsJianCha' => $count,
                    ];
                    $this->redis->setex($key, 86400 * 7, "礼物数量超出限制 ".json_encode($errorData));
                    return ['code' => 0, 'msg' => '网络加载失败，请重试！', 'data' => null];
                }
            }

            // 4. 执行抽奖事务（核心操作）
            $transactionResult = $this->executeDrawTransaction(
                $bag_data,
                $user_id,
                $room_id,
                $num,
                $total_price,
                $precomputedResults,
                $availableGiftss,
                $heart_id,
                $auction_id
            );
            if ($transactionResult['code'] !== 1) {
                return $transactionResult;
            }
            $boxTurntableLog = $transactionResult['data']['log_id'];
            $giftCounts = $transactionResult['data']['gift_counts'];

            // 5. 处理后续操作（非事务性操作）
            $this->handlePostDrawOperations(
                $precomputedResults,
                $boxTurntableLog,
                $room_id
            );
            // 6. 构建并返回结果
            return $this->buildDrawResult($boxTurntableLog, $giftCounts);
        } catch (\Exception $e) {
            $key = 'blind_box_draw_errors_' . date('Y-m-d-H-i-s');
            $errorData = [
                'gift_bag_id' => $gift_bag_id,
                'user_id' => $user_id,
                'gift_user_ids' => $gift_user_ids,
                'num' => $num,
                'room_id' => $room_id,
                'heart_id' => $heart_id,
                'auction_id' => $auction_id,
            ];
            if ($this->redis) {
                $this->redis->setex($key, 86400 * 7, $e->getMessage() . ' ' . json_encode($errorData));
            }
            return ['code' => 0, 'msg' => "网络加载失败，请重试！", 'data' => null];
        }
    }
    /**
     * 预计算抽奖结果
     */
    private function precomputeDrawResults($gift_bag_id, $total_num, $gift_user_ids,$periods)
    {
        $pan_total_draw_times   = $this->getCachedPanDrawTimes($gift_bag_id); //总抽奖次数
        $pan_total_remaining    = $this->getCachedPanTotalRemaining($gift_bag_id); //剩余数量
        //获取可用礼物
        $availableGifts = $this->getAvailableGifts($gift_bag_id,$pan_total_draw_times+$total_num);
        $giftInfoMap = $this->getCachedPanGiftInfoMap($gift_bag_id);//预加载礼物信息
        $remaining_available_gifts = [];
        if (empty($availableGifts) ||$pan_total_remaining ==0) {
            //重置奖池
            $availableGifts = $this->resetPoolAndReload($gift_bag_id);
            if (empty($availableGifts)) {
                throw new \Exception('重置奖池后仍无可用礼物');
            }
            $pan_total_draw_times = $this->getCachedPanDrawTimes($gift_bag_id,"clear");//总抽奖次数重置
        }else{
            if ($pan_total_remaining < $total_num) {
                $remaining_available_gifts = $availableGifts; // 保存当前剩余礼物作为上期剩余
                //重置奖池
                $availableGifts = $this->resetPoolAndReload($gift_bag_id);
                if (empty($availableGifts)) {
                    throw new \Exception('重置奖池后仍无可用礼物');
                }
                $pan_total_draw_times = $this->getCachedPanDrawTimes($gift_bag_id,"clear");;//总抽奖次数重置

            }
        }
        // 5. 使用Alias Method预计算抽奖结果（O(1)复杂度）
        $precomputedResults = [];
        $precomputedResultss = [];

        // 计算上期剩余礼物总数
        $remainingGiftCount = array_sum(array_column($remaining_available_gifts, 'remaining_number'));
        $newGiftsNeeded = max(0, $total_num - $remainingGiftCount); // 计算还需要多少礼物从新奖池中抽取
        // 先从上期剩余礼物中分配
        if (!empty($remaining_available_gifts)) {
            $aliasTableForRemaining = $this->buildAliasTable($remaining_available_gifts);
            // 计算上期剩余礼物总数
            foreach ($gift_user_ids as $giftUserId) {
                // 为每个用户先分配上期剩余礼物
                $userRemainingAllocation = floor($remainingGiftCount / $total_num);
                if (count($gift_user_ids) > 0) { // 防止除零错误
                    $extraGifts = $remainingGiftCount % count($gift_user_ids);
                    if (array_search($giftUserId, $gift_user_ids) < $extraGifts) {
                        $userRemainingAllocation++;
                    }
                }
                for ($i = 0; $i < $userRemainingAllocation; $i++) {
                    $selectedGift = $this->selectGiftWithAliasMethod($aliasTableForRemaining);
                    if ($selectedGift) {
                        $gift = $giftInfoMap[$selectedGift['foreign_id']];
                        $precomputedResults[] = [
                            'gift_user_id' => $giftUserId,
                            'gift_bag_detail' => $selectedGift,
                            'gift' => $gift,
                            'draw_times' => $this->getCachedPanDrawTimes($gift_bag_id),
                            'periods' => $periods,
                        ];
                        $this->getCachedXlhPeriodsNum("set");//添加寻乐会条件次数
                        $pan_total_draw_times = $this->getCachedPanDrawTimes($gift_bag_id,"set"); // 总抽奖次数
                    }
                }
            }
            $pan_total_draw_times = $this->getCachedPanDrawTimes($gift_bag_id,"clear");//总抽奖次数重置
        }
        // 再从新奖池中分配剩余所需礼物
        if ($newGiftsNeeded > 0 && !empty($availableGifts)) {
            $aliasTableForNew = $this->buildAliasTable($availableGifts);
            foreach ($gift_user_ids as $giftUserId) {
                // 计算每个用户需要从新奖池获得的礼物数量
                $userNewAllocation = floor($newGiftsNeeded / count($gift_user_ids));
                if (count($gift_user_ids) > 0) {
                    $extraGifts = $newGiftsNeeded % count($gift_user_ids);
                    if (array_search($giftUserId, $gift_user_ids) < $extraGifts) {
                        $userNewAllocation++;
                    }
                }
                for ($i = 0; $i < $userNewAllocation; $i++) {
                    $selectedGift = $this->selectGiftWithAliasMethod($aliasTableForNew);
                    if ($selectedGift) {
                        $gift = $giftInfoMap[$selectedGift['foreign_id']]??[];
                        $precomputedResults[] = [
                            'gift_user_id' => $giftUserId,
                            'gift_bag_detail' => $selectedGift,
                            'gift' => $gift,
                            'draw_times' => $this->getCachedPanDrawTimes($gift_bag_id),
                            'periods' => $periods,
                        ];
                        $precomputedResultss[] = [
                            'gift_user_id' => $giftUserId,
                            'gift_bag_detail' => $selectedGift,
                            'gift' => $gift,
                            'draw_times' => $this->getCachedPanDrawTimes($gift_bag_id),
                            'periods' => $periods,
                        ];

                        //更新相关缓存数据
                        $pan_total_draw_times = $this->getCachedPanDrawTimes($gift_bag_id,"set"); //总抽奖次数+1
                        $pan_total_remaining    = $this->getCachedPanTotalRemaining($gift_bag_id,"set"); //剩余数量-1
                        // 更新房间巡乐会次数
                        $this->getCachedXlhPeriodsNum("set");
                        // 更新Alias表
                        $this->updateAliasTable($aliasTableForNew, $selectedGift['id']);
                        $this->updateCachedGiftBagDetail($gift_bag_id, $selectedGift['id']); //更新缓存中礼物的数量
                    }
                }
            }
        }
        return ['precomputedResults' => $precomputedResults, 'precomputedResultss' => $precomputedResultss];
    }

    /**
     * 更新Alias表（模拟库存减少）
     */
    private function updateAliasTable(&$aliasTable, $giftId)
    {
        // 查找礼物在Alias表中的位置
        $gifts = &$aliasTable['gifts'];
        foreach ($gifts as &$gift) {
            if ($gift['id'] == $giftId) {
                $gift['remaining_number']--;
                break;
            }
        }
        // 重新构建Alias表（当剩余数量变化较大时）
        // 这里可以根据实际情况调整重建频率
        $totalRemaining = array_sum(array_column($gifts, 'remaining_number'));
        if ($totalRemaining <= 0) {
            $aliasTable = null;
        }
    }

    /**
     * 验证抽奖参数
     */
    private function validateDrawParameters($gift_bag_id, $user_id, $gift_user_ids, $total_price)
    {
        // 提前验证收礼人
        if (in_array($user_id, $gift_user_ids)) {
            return ['code' => 0, 'msg' => "收礼人不能包含自己", 'data' => null];
        }
        // 验证用户ID
        if (empty($user_id)) {
            return ['code' => 0, 'msg' => '用户ID不能为空', 'data' => null];
        }
        // 验证盲盒ID
        if (empty($gift_bag_id)) {
            return ['code' => 0, 'msg' => '盲盒ID不能为空', 'data' => null];
        }
        // 检查用户金币
        $user_waller = db::name('user_wallet')
            ->where(['user_id' => $user_id])
            ->find();
        if (!$user_waller) {
            return ['code' => 0, 'msg' => '用户钱包不存在', 'data' => null];
        }
        if ($user_waller['coin'] < $total_price) {
            return ['code' => 0, 'msg' => '用户金币不足', 'data' => null];
        }
        return true;
    }
    //获取转盘礼包详细信息【缓存】
    private function getCachedGiftBag($gift_bag_id,$is_cache = true) {
        $cacheKey = "pan_gift_bag".$gift_bag_id;
        $gift_bag_data = Cache::get($cacheKey);
        if (!$gift_bag_data || !$is_cache) {
            $bag_data = db::name("vs_gift_bag")
                ->field('id,name,ext,periods')
                ->where('id', $gift_bag_id)
                ->find();
            if (!$bag_data) {
                return [];
            }
            $gift_bag_data = json_decode($bag_data['ext'], true);
            $gift_bag_data['gift_bag_id'] = $gift_bag_id;
            $gift_bag_data['gift_bag_name'] = $bag_data['name'];
            $gift_bag_data['periods'] = $bag_data['periods'];
            $gift_bag_data['gift_price'] = DB::name("vs_gift") ->where(['gid' => $gift_bag_data['gift_id']])->value('gift_price');
            Cache::set($cacheKey, $gift_bag_data, $this->cache_time);
        }
        return $gift_bag_data;
    }
    //获取奖池详细信息【缓存】
    private function getCachedGiftBagDetail($gift_bag_id,$is_cache = true) {
        $cacheKey = "pan_gift_bag_detail".$gift_bag_id;
        $pan_gift_bag_detail = Cache::get($cacheKey);
        if (empty($pan_gift_bag_detail) || !$is_cache) {
            $pan_gift_bag_detail = db::name("vs_gift_bag_detail")
                ->field('id,quantity,remaining_number,weight,foreign_id,gift_bag_id')
                ->where(['gift_bag_id' => $gift_bag_id])
                ->select();
            if (!$pan_gift_bag_detail) {
                return [];
            }
            $total_quantity = array_sum(array_column( $pan_gift_bag_detail, 'quantity'));
            $total_remaining = array_sum(array_column($pan_gift_bag_detail, 'remaining_number'));
            $total_draw_times = max(0, $total_quantity - $total_remaining); //总抽奖次数

            Cache::set($cacheKey, $pan_gift_bag_detail, $this->cache_time);
            Cache::set("pan_total_quantity".$gift_bag_id, $total_quantity, $this->cache_time);
            Cache::set("pan_total_remaining".$gift_bag_id, $total_remaining, $this->cache_time);
            Cache::set("pan_total_draw_times".$gift_bag_id, $total_draw_times, $this->cache_time);
        }
        return $pan_gift_bag_detail;
    }

    /**
     * 获取可用礼物
     * @param $gift_bag_id
     * @param $total_draw_times 总抽奖次数
     */
    private function getAvailableGifts($gift_bag_id, $pan_total_draw_times = 0)
    {
        $gift_bag_detail_data = $this->getCachedGiftBagDetail($gift_bag_id);
        $gift_detail_data = [];
        foreach ($gift_bag_detail_data as $item) {
            if($item['remaining_number'] > 0 && $item['weight']<=$pan_total_draw_times && $item['quantity'] > 0){
                $gift_detail_data[] = $item;
            }
        }
        return $gift_detail_data;
    }

    /**
     * 重置奖池并重新加载
     */
    private function resetPoolAndReload($gift_bag_id)
    {
        // 重置剩余数量
        Db::name("vs_gift_bag_detail")
            ->where(['gift_bag_id' => $gift_bag_id])
            ->update(['remaining_number' => Db::raw('quantity')]);

        // 清除缓存
        Cache::rm("pan_gift_bag_detail".$gift_bag_id);

        // 重新获取可用礼物
        return $this->getAvailableGifts($gift_bag_id);
    }

    /**
     * 使用Alias Method选择礼物（O(1)复杂度）
     */
    private function selectGiftWithAliasMethod($aliasTable)
    {
        if (!$aliasTable) return null;

        // 添加重试机制，最多尝试5次
        $maxAttempts = 5;
        $attempt = 0;
        while ($attempt < $maxAttempts) {
            $n = $aliasTable['n'];
            $k = mt_rand(0, $n - 1);
            // 随机选择
            if (mt_rand() / mt_getrandmax() < $aliasTable['prob'][$k]) {
                $selectedGift = $aliasTable['index_map'][$k];
            } else {
                $selectedGift = $aliasTable['index_map'][$aliasTable['alias'][$k]] ?? null;
            }
            // 检查选中的礼物是否还有库存
            if ($selectedGift && $selectedGift['remaining_number'] > 0) {
                return $selectedGift;
            }
            $attempt++;
        }
        // 如果重试次数用完仍未抽中有效礼物，返回null
        return null;
    }
    /**
     * 构建Alias表（O(n)复杂度，只执行一次）
     */
    private function buildAliasTable($gifts)
    {
        $n = count($gifts);
        if ($n === 0) return null;

        $totalRemaining = array_sum(array_column($gifts, 'remaining_number'));
        if ($totalRemaining <= 0) return null;

        // 初始化Alias表
        $small = [];
        $large = [];
        $prob = [];
        $alias = [];
        $indexMap = [];

        // 归一化概率并填充索引映射
        foreach ($gifts as $i => $gift) {
            if ($gift['remaining_number'] <= 0) continue;
            $indexMap[$i] = $gift;
            $prob[$i] = $gift['remaining_number'] * $n / $totalRemaining;
            if ($prob[$i] < 1.0) {
                $small[] = $i;
            } else {
                $large[] = $i;
            }
        }

        // 构建Alias表
        while (!empty($small) && !empty($large)) {
            $s = array_pop($small);
            $l = array_pop($large);
            $alias[$s] = $l;
            $prob[$l] = ($prob[$l] + $prob[$s]) - 1.0;

            if ($prob[$l] < 1.0) {
                $small[] = $l;
            } else {
                $large[] = $l;
            }
        }

        return [
            'n' => $n,
            'prob' => $prob,
            'alias' => $alias,
            'index_map' => $indexMap,
            'gifts' => $gifts
        ];
    }


    /**
     * 更新礼物剩余数量
     */
    private function updateGiftRemainingNumber($gift_bag_detail_id)
    {
        Db::name("vs_gift_bag_detail")
            ->where(['id' => $gift_bag_detail_id])
            ->setDec('remaining_number', 1);
    }

    /**
     * 更新缓存中的奖池信息
     */
    private function updateCachedGiftBagDetail($gift_bag_id, $detail_id, $decrement = 1) {
        $cacheKey = "pan_gift_bag_detail".$gift_bag_id;
        $gift_bag_detail_data = Cache::get($cacheKey);

        if ($gift_bag_detail_data) {
            foreach ($gift_bag_detail_data as &$item) {
                if ($item['id'] == $detail_id) {
                    $item['remaining_number'] -= $decrement;
                    break;
                }
            }
            Cache::set($cacheKey, $gift_bag_detail_data, $this->cache_time);
        }
    }
    /**
     * 获取缓存中的奖池单个礼物信息
     */
    private function getCachedGiftBagDetailItem($gift_bag_id, $detail_id) {
        $cacheKey = "pan_gift_bag_detail".$gift_bag_id;
        $gift_bag_detail_item  = Cache::get($cacheKey);
        if($gift_bag_detail_item) {
            foreach ($gift_bag_detail_item as $item) {
                if ($item['id'] == $detail_id) {
                    return $item;
                }
            }
        }
        return [];
    }
    /**
     * 获取奖池总库存
     */
    private function getCachedPanTotalQuantity($gift_bag_id) {
        $cacheKey = "pan_total_quantity".$gift_bag_id;
        $pan_total_quantity     = Cache::get($cacheKey);
        if(!$pan_total_quantity) {
            $pan_total_quantity     = Db::name("vs_gift_bag_detail")
                ->where(['gift_bag_id' => $gift_bag_id])
                ->sum('quantity');
            Cache::set($cacheKey, $pan_total_quantity, $this->cache_time);
        }
        return $pan_total_quantity;
    }
    /**
     * 获取奖池剩余库存
     */
    private function getCachedPanTotalRemaining($gift_bag_id, $type="get", $check_num=1) {
        $cacheKey = "pan_total_remaining".$gift_bag_id;
        $pan_total_quantity = Cache::get($cacheKey);
        if($type == "set"){
            $pan_total_quantity = $pan_total_quantity-$check_num;
            if($pan_total_quantity < 0){
                $pan_total_quantity = 0;
            }
            Cache::set($cacheKey, $pan_total_quantity, $this->cache_time);
        }elseif($type == "clear"){
            $pan_total_quantity = 0;
            Cache::set($cacheKey, $pan_total_quantity, $this->cache_time);
        } else{
            if(!$pan_total_quantity) {
                $pan_total_quantity = Db::name("vs_gift_bag_detail")
                    ->where(['gift_bag_id' => $gift_bag_id])
                    ->sum('remaining_number');
                Cache::set($cacheKey, $pan_total_quantity, $this->cache_time);
            }
        }

        return $pan_total_quantity;
    }
    /**
     * 获取缓存的抽奖次数
     */
    private function getCachedPanDrawTimes($gift_bag_id,$type="get") {
        $cacheKey = "pan_total_draw".$gift_bag_id;
        $total_draw_times = Cache::get($cacheKey) ?? 0;
        if($type == "set"){
            $total_draw_times = $total_draw_times+1;
            Cache::set($cacheKey, $total_draw_times, $this->cache_time);
        }elseif($type == "clear"){
            $total_draw_times = 0;
            Cache::set($cacheKey, $total_draw_times, $this->cache_time);
        }
        return $total_draw_times;
    }
    /**
     * 获取缓存的巡乐会开启次数
     */
    private function getCachedXlhPeriodsNum($type="get",$num=1) {
        $cacheKey = "xlh_periods_num";
        $xlh_periods_num = Cache::get($cacheKey) ?? 0;
        if($type=="set"){
            $xlh_periods_num = $xlh_periods_num + $num;
            Cache::set($cacheKey, $xlh_periods_num, 0);
        }
        return $xlh_periods_num;
    }
    /**
     * 获取缓存的巡乐会期数
     */
    private function getCachedXlhPeriods($type="get",$periods=1) {
        $cacheKey = "pan_this_xlh_periods";
        $xlh_periods_num = Cache::get($cacheKey) ?? 0;
        if($type=="set"){
            $xlh_periods_num = $periods;
            Cache::set($cacheKey, $xlh_periods_num, 0);
        }
        return $xlh_periods_num;
    }
    /**
     * 获取奖池总库存
     */
    private function getCachedPanGiftInfoMap($gift_bag_id) {
        $cacheKey = "pan_gift_info_map".$gift_bag_id;
        $gift_info_map = Cache::get($cacheKey);
        if(!$gift_info_map) {
            $gift_bag_detail = Db::name("vs_gift_bag_detail")
                ->field('foreign_id')
                ->where(['gift_bag_id' => $gift_bag_id])
                ->select();
            $gift_info_map = [];
            $gift_ids = array_unique(array_column($gift_bag_detail, 'foreign_id'));
            if (!empty($gift_ids)) {
                foreach ($gift_ids as $gift_id) {
                    $gift_info_map[$gift_id] = db::name("vs_gift")
                        ->field('gid,gift_name,gift_price,base_image')
                        ->where(['gid' => $gift_id])
                        ->find();
                }
            }
            Cache::set($cacheKey, $gift_info_map, $this->cache_time);
        }
        return $gift_info_map;
    }

    //开始更新操作：
    /**
     * 执行抽奖事务（核心操作）
     */
    private function executeDrawTransaction($bag_data, $user_id, $room_id, $num,$total_price, $precomputedResults,$availableGiftss,$heart_id,$auction_id)
    {
        try {
            db::startTrans();
            // 按照固定顺序处理事务步骤
            // 1. 扣除用户金币（优先处理）
            $this->deductUserCoins($user_id, $total_price, $room_id);
            // 2. 创建抽奖记录
            $boxTurntableLog = db::name('vs_blind_box_turntable_log')->insertGetId([
                'user_id' => $user_id,
                'gift_bag_id' => $bag_data['gift_bag_id'],
                'num' => $num,
                'room_id' => $room_id,
                'bag_price' => $bag_data['gift_price'],
                'createtime' => time()
            ]);
            if (!$boxTurntableLog) {
                throw new \Exception('添加盲盒转盘记录失败');
            }
            // 3. 批量更新库存（按ID排序避免死锁）
            $this->batchUpdateGiftInventory($bag_data['gift_bag_id'],$availableGiftss);

            // 4. 批量插入礼包发放记录
            $this->batchInsertGiftBagReceiveLog($bag_data,$user_id, $boxTurntableLog,$room_id, $precomputedResults);

            // 5. 发送礼物
            $result = $this->sendGiftsToRecipients($precomputedResults, $room_id,$user_id,$heart_id,$auction_id);
            if (isset($result['code']) && $result['code'] !== 1) {
                throw new \Exception($result['msg']);
            }

            db::commit();

            // 统计礼物数量
            $giftCounts = $this->countGifts($precomputedResults);

            return [
                'code' => 1,
                'msg' => '事务执行成功',
                'data' => [
                    'log_id' => $boxTurntableLog,
                    'gift_counts' => $giftCounts
                ]
            ];
        } catch (\Exception $e) {
            db::rollback();
            throw new \Exception($e->getMessage());
        }
    }
    /**
     * 扣除用户金币
     */
    private function deductUserCoins($user_id, $bagGiftPrice, $room_id)
    {
        // 使用悲观锁查询用户钱包
        $userWallet = db::name('user_wallet')
            ->where(['user_id' => $user_id])
            ->find();
        if (!$userWallet || $userWallet['coin'] < $bagGiftPrice) {
            throw new \Exception('用户金币不足');
        }
        $walletUpdate = model('GiveGift')->change_user_cion_or_earnings_log(
            $user_id,
            $bagGiftPrice,
            $room_id,
            1,
            10,
            '盲盒转盘抽奖消耗'
        );
        if (!$walletUpdate) {
            throw new \Exception('扣除用户金币失败');
        }
        //更新用户等级
        $userLevel = model('Level')->user_level_data_update(
            $user_id,
            $bagGiftPrice,
            1,
            $room_id
        );
        if (!$userLevel) {
            throw new \Exception('用户等级更新失败');
        }
    }
    /**
     * 批量更新礼物库存
     */
    private function batchUpdateGiftInventory($gift_bag_id,$precomputedResults)
    {
        // 按礼物ID分组统计需要减少的数量
        $inventoryUpdates = [];
        foreach ($precomputedResults as $result) {
            $giftId = $result['gift_bag_detail']['id']??0;
            $inventoryUpdates[$giftId] = ($inventoryUpdates[$giftId] ?? 0) + 1;
        }

        // 按ID排序避免死锁
        ksort($inventoryUpdates);

        // 批量更新
        foreach ($inventoryUpdates as $giftId => $count) {
            $giftBagDetail = Db::name("vs_gift_bag_detail")
                ->where('id', $giftId)
                ->find();
            $giftBagDetailCached = $this->getCachedGiftBagDetailItem($gift_bag_id, $giftId);
            if (!$giftBagDetail) {
                throw new \Exception("礼物详情不存在，ID: " . $giftId);
            }
            $upRemainingNumber = $giftBagDetail['remaining_number'] - $count;
            if($upRemainingNumber!=$giftBagDetailCached['remaining_number']){
                $this->redis->setex( 'blind_box_draw_errors_' . date('Y-m-d-H-i-s'), 86400 * 7, "有并发：礼物数量不一致，礼物ID: " . $giftId . '数据库数量: '.$upRemainingNumber. '缓存数量: '.$giftBagDetailCached['remaining_number']. ' ' .json_encode($giftBagDetail) . ' ' .json_encode($giftBagDetailCached));
                $upRemainingNumber = $giftBagDetailCached['remaining_number'];
            }
            // 检查库存是否足够
            if ($upRemainingNumber < 0) {
                throw new \Exception("礼物库存不足，ID: " . $giftId);
            }
            if($upRemainingNumber = $giftBagDetail['remaining_number']){
                return;
            }
            $ret = db::name("vs_gift_bag_detail")->where('id',$giftId)->update([
                'remaining_number' => $upRemainingNumber
            ]);
            if (!$ret) {
                throw new \Exception('更新礼物剩余数量失败');
            }
        }
    }

    /**
     * 批量插入礼包发放记录
     */
    private function batchInsertGiftBagReceiveLog($bag_data,$user_id, $boxTurntableLog,$room_id, $precomputedResults)
    {

        $batchInsertData = [];

        foreach ($precomputedResults as $result) {
            if(!isset($result['gift']['gift_price'])){
                Log::record('数据报错:'.json_encode($result),"info");
            }
            $batchInsertData[] = [
                'user_id' => $user_id,
                'gift_user_id' => $result['gift_user_id'],
                'parent_id' => $boxTurntableLog,
                'gift_bag_id' => $bag_data['gift_bag_id'],
                'gift_id' => $result['gift_bag_detail']['foreign_id'],
                'periods' => $result['periods'],
                'room_id' => $room_id,
                'gift_price' => $result['gift']['gift_price'],
                'bag_price' => $bag_data['gift_price'],
                'createtime' => time()
            ];
        }
        if (!empty($batchInsertData)) {
            $insertResult = db::name("vs_gift_bag_receive_pan_log")->insertAll($batchInsertData);
            if (!$insertResult) {
                throw new \Exception('插入礼包发放记录失败');
            }
        }
    }

    /**
     * 发送礼物给接收者
     */
    private function sendGiftsToRecipients($precomputedResults, $room_id,$user_id,$heart_id,$auction_id)
    {
        // 统计每个用户每个礼物的数量
        $giftUserCounts = [];
        foreach ($precomputedResults as $result) {
            $key = $result['gift_user_id'] . '_' . $result['gift_bag_detail']['foreign_id'];
            if (!isset($giftUserCounts[$key])) {
                $giftUserCounts[$key] = [
                    'gift_user_id' => $result['gift_user_id'],
                    'gift_id' => $result['gift_bag_detail']['foreign_id'],
                    'count' => 0,
                    'gift_price' => $result['gift']['gift_price']
                ];
            }
            $giftUserCounts[$key]['count']++;
        }

        // 批量发送礼物
        foreach ($giftUserCounts as $userGift) {
            if($userGift['count'] > 9){ //防止礼物超发，礼物超10个则不发送
                continue;
            }
            $giveGiftExt = [
                'gift_id' => $userGift['gift_id'],
                'count' => $userGift['count'],
                'gift_price' => $userGift['gift_price'],
                'all_gift_price' => $userGift['gift_price'] * $userGift['count'],
                'is_draw_gift' => 1
            ];
            if(!empty($auction_id)){ //竞拍
                model('RoomAuction')->room_auction_join($auction_id,$user_id,$userGift['gift_id'],$userGift['count'],2,$giveGiftExt);
            }else{
                $res = model('Room')->room_gift(
                    $user_id,
                    $userGift['gift_user_id'],
                    $userGift['gift_id'],
                    $userGift['count'],
                    1,
                    $room_id,
                    0,
                    $heart_id,
                    $giveGiftExt
                );
            }
            if (isset($res) && $res['code'] != 1) {
                Log::record('发送礼物失败: ' . $res['msg'] . $userGift['gift_user_id'], "info");
                return ['code' => 0, 'msg' => $res['msg'], 'data' => null];
            }
        }
        return ['code' => 1, 'msg' => '发送礼物成功', 'data' => null];
    }
    /**
     * 统计礼物数量
     */
    private function countGifts($precomputedResults)
    {
        $giftCounts = [];
        foreach ($precomputedResults as $result) {
            $giftId = $result['gift_bag_detail']['foreign_id'];
            if (!isset($giftCounts[$giftId])) {
                $giftCounts[$giftId] = [
                    'gift_user_id' => $result['gift_user_id'],
                    'gift_id' => $giftId,
                    'count' => 0,
                    'gift_price' => $result['gift']['gift_price'],
                    'quantity' => $result['gift_bag_detail']['quantity']
                ];
            }
            $giftCounts[$giftId]['count']++;
        }
        return $giftCounts;
    }
    /**
     * 处理抽奖后的后续操作（非事务性）
     */
    private function handlePostDrawOperations(
        $precomputedResults,
        $boxTurntableLog,
        $room_id
    ) {
        // 获取巡乐会配置（使用缓存）
        $xlh_ext = $this->getCachedGiftBag(13);
        // 1. 批量插入盲盒转盘结果记录
        $this->batchInsertBlindBoxResults($precomputedResults, $boxTurntableLog);
        // 2. 处理巡乐会相关操作
        if (!empty($xlh_ext) && $xlh_ext['inlet_bag_id'] == $precomputedResults[0]['gift_bag_detail']['gift_bag_id']) {
            $this->handleXlhOperations($room_id, $xlh_ext);
        }
    }
    /**
     * 批量插入盲盒转盘结果记录
     */
    private function batchInsertBlindBoxResults($precomputedResults, $boxTurntableLog)
    {
        // 统计每个用户每个礼物的数量
        $giftUserCounts = $this->countGifts($precomputedResults);
        // 批量插入
        $batchInsertData = [];
        foreach ($giftUserCounts as $userGift) {
            $batchInsertData[] = [
                'tid' => $boxTurntableLog,
                'gift_user_id' => $userGift['gift_user_id'],
                'gift_id' => $userGift['gift_id'],
                'count' => $userGift['count'],
                'gift_price' => $userGift['gift_price'],
                'all_gift_price' => $userGift['gift_price'] * $userGift['count'],
                'createtime' => time(),
                'heart_id' => 0
            ];
        }
        if (!empty($batchInsertData)) {
            db::name('vs_blind_box_turntable_results_log')->insertAll($batchInsertData);
        }
    }
    /**
     * 处理巡乐会相关操作
     */
    private function handleXlhOperations($room_id, $xlh_ext)
    {
        $xlhIsPiaoPing = 0;
        $xlhPeriodsNum = $this->getCachedXlhPeriodsNum("get");
        if($xlhPeriodsNum == $xlh_ext['open_condition']['waiting_start_num']){
            $xlhIsPiaoPing = 1;
        }
        if($xlhPeriodsNum == $xlh_ext['open_condition']['start_num']){
            $xlhIsPiaoPing = 2;
        }
        // 处理飘屏
        if ($xlhIsPiaoPing == 1 || $xlhIsPiaoPing == 2) {
            $this->handleXlhPiaoPing($room_id, $xlh_ext, $xlhIsPiaoPing);
        }

        $this->updateAndPushXlhStatus($room_id, $xlh_ext);
    }
    private function handleXlhPiaoPing($room_id, $xlh_ext, $xlhIsPiaoPing){
        if($xlhIsPiaoPing == 1){
            // 即将开始推送飘屏
            $text = "巡乐会即将开始...";
            // 推送礼物横幅
            $push = new Push(UID, $room_id);
            $text_list_new = [
                'text' => $text,
                'room_id' => $room_id,
                'from_type' => 101
            ];
            $push->xunlehui($text_list_new);
        }
        if($xlhIsPiaoPing == 2){
            // 正式开始推送飘屏
            $text = "巡乐会游戏已正式开启...";
            // 推送礼物横幅
            $push = new Push(UID, $room_id);
            $text_list_new = [
                'text' => $text,
                'room_id' => $room_id,
                'from_type' => 102
            ];
            $push->xunlehui($text_list_new);
            // 巡乐会正式开始
            $this_xlh_periods = $this->getCachedXlhPeriods('get');
            $pan_xlh_id = db::name('vs_room_pan_xlh')->insertGetId([
                'room_id' => $room_id,
                'gift_id' => $xlh_ext['locking_condition']['locking_gift_id'],
                'homeowner_gift_id' => $xlh_ext['locking_condition']['give_homeowner_gift_id'],
                'periods' => $this_xlh_periods+1,
                'num' => 0,
                'end_time' => time() + $xlh_ext['locking_time']['end_time'] * 60,
                'createtime' => time()
            ]);
            if(!$pan_xlh_id){
                return ['code' => 0, 'msg' => '创建巡乐会失败!', 'data' => []];
            }
            $this->getCachedXlhPeriods('set', $this_xlh_periods+1);//修改巡乐会期数
        }
    }
    private function updateAndPushXlhStatus($room_id, $xlh_ext){
        $xlh['waiting_start_num'] = $xlh_ext['open_condition']['waiting_start_num'];//等待开奖次数
        $xlh['start_num'] = $xlh_ext['open_condition']['start_num'];//开始开奖次数
        // 当前抽奖次数
        $xlh['current_num'] = $this->getCachedXlhPeriodsNum("get");
        $xlh['end_time'] = 0;
        // 状态
        if($xlh['current_num'] >= $xlh_ext['open_condition']['start_num']){
            $xlh['status'] = 1;//状态 1:巡乐会开始 2:即将开始开始 0:等待开始
            //查询巡乐会信息
            $pan_xlh = db::name('vs_room_pan_xlh')->where('send_time',0)->order('id desc')->find();
            if(empty($pan_xlh)){
                $this->handleXlhPiaoPing($room_id, $xlh_ext, 2);
                $pan_xlh = db::name('vs_room_pan_xlh')->where('send_time',0)->order('id desc')->find();
            }
            $xlh['end_time'] = $pan_xlh['end_time'] ?? 0;
        } elseif($xlh['current_num'] >= $xlh_ext['open_condition']['waiting_start_num'] && $xlh['current_num'] < $xlh_ext['open_condition']['start_num']){
            $xlh['status'] = 2;//状态 1:巡乐会开始 2:即将开始开始 0:等待开始
        }else{
            $xlh['status'] = 0;
        }
        // 推送进度条
        $push = new Push(UID, $room_id);
        $text_list_new = [
            'xlh_data' => $xlh,
            'text' => "",
            'room_id' => $room_id,
            'from_type' => 100
        ];
        $push->xunlehui($text_list_new);
    }

    /**
     * 构建抽奖结果
     */
    private function buildDrawResult($boxTurntableLog, $giftCounts)
    {
        $resultList = [];
        foreach ($giftCounts as $gift) {
            $resultList[] = [
                'gift_id' => $gift['gift_id'],
                'count' => $gift['count']
            ];
        }
        return [
            'code' => 1,
            'msg' => '成功',
            'data' => [
                'blind_box_turntable_id' => $boxTurntableLog,
                'reslut_list' => $resultList
            ]
        ];
    }

/*
 * 巡乐会抽奖-----------------------------------------------------------------------------------------
 */
    /*
     * 巡乐会抽奖（优化版）
     */
    public function xlh_draw_gift($user_id, $num, $room_id)
    {
        $gift_bag_id = 13;
        // 1. 获取并缓存盲盒配置
        $ext    = $this->getCachedGiftBag($gift_bag_id);  //获取转盘信息
        $bag_gift_price = $ext['xlh_box_price'] * $num;
        // 3. 检查巡乐会状态
        $pan_xlh = db::name('vs_room_pan_xlh')
            ->where(['send_time' => 0])
            ->order('id', 'desc')
            ->find();
        if (empty($pan_xlh)) {
            return ['code' => 0, 'msg' => '本轮未开始', 'data' => null];
        }
        if ($pan_xlh['end_time'] <= time()) {
            return ['code' => 0, 'msg' => '本轮已结束', 'data' => null];
        }

        // 6. 预计算抽奖结果
        $drawn_gifts = []; // 用于统计抽中结果
        $main_prize_updates = []; // 用于记录主奖品更新
        $is_zhong_jiang = 0;


        // 批量处理配置
        $batch_size = min(10, $num); // 每批次处理10次
        $total_processed = 0;
        $all_results = []; // 存储所有抽奖结果
        try {
            db::startTrans();
            while ($total_processed < $num) {
                $current_batch = min($batch_size, $num - $total_processed); // 当前批次处理数量
                // 批量扣除金币（只在第一次事务中处理）
                if ($total_processed == 0) {
                    $user_waller = db::name('user_wallet')->where(['user_id' => $user_id])->find();
                    if (!$user_waller || $user_waller['coin'] < $bag_gift_price) {
                        return ['code' => 0, 'msg' => '用户金币不足', 'data' => null];
                    }
                    $wallet_update = model('GiveGift')->change_user_cion_or_earnings_log(
                        $user_id,
                        $bag_gift_price,
                        $room_id,
                        1,
                        10,
                        $ext['gift_bag_name'].'抽奖消耗'
                    );
                    if (!$wallet_update) {
                        throw new \Exception('扣除用户金币失败');
                    }

                    $user_level = model('Level')->user_level_data_update(
                        $user_id,
                        $bag_gift_price,
                        1,
                        $room_id
                    );
                    if (!$user_level) {
                        throw new \Exception('用户等级更新失败');
                    }
                }

                // 处理当前批次的抽奖
                $inventory_updates = []; // 用于记录库存变化
                for ($i = 0; $i < $current_batch; $i++) {
                    $total_draw_times   = $this->getCachedPanDrawTimes($gift_bag_id) ?? 0; //已抽奖次数
                    $availableGifts = $this->getAvailableGifts($gift_bag_id,$total_draw_times); //获取可用礼物
                    if (empty($availableGifts)) {
                        $availableGifts = $this->resetPoolAndReload($gift_bag_id);
                        if (empty($availableGifts)) {
                            throw new \Exception('重置奖池后仍无可用礼物');
                        }
                    }
                    // 从可用礼物中选择
                    $selected_gift = $this->selectGiftFromAvailable($availableGifts);
                    if (!$selected_gift) {
                        $gift_bag_detail = $this->resetPoolAndReload($gift_bag_id);
                        $selected_gift = $this->selectGiftFromAvailable($gift_bag_detail);
                        if(!$selected_gift){
                            throw new \Exception('预计算抽奖失败,重置后无可用礼物');
                        }
                    }
                    // 记录库存变化
                    $inventory_updates[$selected_gift['id']] =  ($inventory_updates[$selected_gift['id']] ?? 0) + 1;
                    // 记录抽中结果
                    $gift_id = $selected_gift['foreign_id'];
                    $drawn_gifts[$gift_id] = ($drawn_gifts[$gift_id] ?? 0) + 1;
                    // 处理主奖品
                    if ($gift_id == $ext['locking_condition']['selected_gift_id']) {
                        $pan_xlh_num = cache::get('pan_xlh_num_'.$gift_bag_id.'_'.$pan_xlh['id']);
                        if(!$pan_xlh_num){
                            $pan_xlh_num = $pan_xlh['num'] ?? 0;
                        }
                        $pan_xlh_num++;
                        cache::set('pan_xlh_num_'.$gift_bag_id.'_'.$pan_xlh['id'], $pan_xlh_num);
                        $main_prize_updates[] = [
                            'num' => $pan_xlh_num,
                            'user_id' => $user_id,
                            'gift_id' => $gift_id
                        ];

                        // 计算延长时间
                        $add_end_time = $this->calculateEndTime($pan_xlh_num, $ext);
                        $end_time = time() + $add_end_time;

                        // 记录主奖品更新
                        $main_prize_updates[count($main_prize_updates) - 1]['end_time'] = $end_time;
                    }

                    // 记录完整结果
                    $all_results[] = [
                        'gift_id' => $gift_id,
                        'gift_detail_id' => $selected_gift['id'],
                        'gift_bag_detail' => $selected_gift
                    ];
                    $this->updateCachedGiftBagDetail($gift_bag_id, $selected_gift['id']); // 更新缓存数据
                    $this->getCachedPanTotalRemaining($gift_bag_id,"set"); //剩余数量-1
                    $this->getCachedPanDrawTimes($gift_bag_id,"set"); //抽奖次数+1
                    // 检查是否需要重置奖池
                    $total_remaining = $this->getCachedPanTotalRemaining($gift_bag_id);
                    if ($total_remaining <= 0){// 剩余数量小于等于0且当前处理数量小于总数量
                        $availableGifts = $this->resetPoolAndReload($gift_bag_id);
                        if (empty($availableGifts)) {
                            throw new \Exception('重置奖池后仍无可用礼物');
                        }
                    }
                }
                // 批量更新库存
                ksort($inventory_updates); // 按ID排序
                foreach ($inventory_updates as $detail_id => $count) {
                    db::name("vs_gift_bag_detail")->where('id',$detail_id)->setDec('remaining_number', $count);
                }
                // 处理主奖品更新
                if (!empty($main_prize_updates)) {
                    $last_update = end($main_prize_updates);
                    $pan_xlh_num = cache::get('pan_xlh_num_'.$gift_bag_id.'_'.$pan_xlh['id']);
                    if($last_update['num'] >= $pan_xlh_num){
                        db::name('vs_room_pan_xlh')->where('id', $pan_xlh['id'])->update([
                            'user_id' => $last_update['user_id'],
                            'room_id' => $room_id,
                            'pay_price' => $ext['xlh_box_price'],
                            'locking_gift_id' => $last_update['gift_id'],
                            'num' => $last_update['num'],
                            'end_time' => $last_update['end_time'],
                            'updatetime' => time()
                        ]);
                    }

                    // 使用insertIgnore防止重复插入记录
                    db::name('vs_room_pan_xlh_log')->insert([
                        'xlh_id' => $pan_xlh['id'],
                        'user_id' => $last_update['user_id'],
                        'room_id' => $room_id,
                        'num' => $last_update['num'],
                        'locking_end_time' => $last_update['end_time'],
                        'createtime' => time()
                    ]);
                    $is_zhong_jiang = 1;
                    unset($main_prize_updates);
                }else{
                    $is_zhong_jiang = 0;
                }
                $total_processed += $current_batch;
            }
            // 7. 批量处理结果记录
            if(count($drawn_gifts) > $num){
                $key = 'xlh_draw_gift_errors_' . date('Y-m-d-H-i-s');
                $errorData = [
                    'user_id' => $user_id,
                    'gift_bag_id' => $gift_bag_id,
                    'room_id' => $room_id,
                    'num' => $num,
                    'drawn_gifts_num' => count($drawn_gifts)
                ];
                $this->redis->setex($key, 86400 * 7, "巡乐会抽奖失败-数量超限". ' ' .json_encode($errorData));
                return ['code' => 0, 'msg' => "抽奖中,请稍等...", 'data' => null];
            }
            // 批量插入礼包发放记录
            $gift_records = [];
            $periods = $this->getCachedXlhPeriods('get') ?? 0;
            $giftInfoMap = $this->getCachedPanGiftInfoMap($gift_bag_id);
            foreach ($drawn_gifts as $gift_id => $count) {
                $gift_records[] = [
                    'user_id' => $user_id,
                    'parent_id' => $pan_xlh['id'],
                    'gift_bag_id' => $gift_bag_id,
                    'gift_id' => $gift_id,
                    'periods' => $periods,
                    'room_id' => $room_id,
                    'num' => $count,
                    'gift_price' => $giftInfoMap[$gift_id]['gift_price'], //预加载礼物信息,
                    'bag_price' => $ext['xlh_box_price'],
                    'createtime' => time()
                ];
            }
            if (!empty($gift_records)) {
                db::name("vs_gift_bag_receive_pan_log")->insertAll($gift_records);
            }
            // 批量处理用户礼物包
            foreach ($drawn_gifts as $gift_id => $count) {
                $res = model('UserGiftPack')->change_user_gift_pack(
                    $user_id,
                    $gift_id,
                    $count,
                    model('UserGiftPack')::XLH_DRAW_GIFT_GET,
                    "巡乐会抽奖所得"
                );
                if ($res['code'] != 1) {
                    throw new \Exception($res['msg']);
                }
            }
            // 添加活动记录
            Db::name('vs_activities_receive')->insert([
                'user_id' => $user_id,
                'activities_id' => 6,
                'room_id' => $room_id,
                'createtime' => time(),
                'updatetime' => time()
            ]);
            db::commit();
        } catch (\Exception $e) {
            db::rollback();
            $key = 'xlh_draw_gift_errors_' . date('Y-m-d-H-i-s');
            $errorData = [
                'user_id' => $user_id,
                'gift_bag_id' => $gift_bag_id,
                'room_id' => $room_id,
            ];
            $this->redis->setex($key, 86400 * 7, $e->getMessage(). ' ' .json_encode($errorData));
            return ['code' => 0, 'msg' => "抽奖中,请稍等...", 'data' => null];
        }
        // 8. 处理推送消息
        if ($is_zhong_jiang == 1) {
            $pan_xlh_num = cache::get('pan_xlh_num_'.$gift_bag_id.'_'.$pan_xlh['id']);
            $this->handlePrizeNotification($user_id, $room_id, $pan_xlh_num, $pan_xlh['id'],$ext['locking_condition']['locking_gift_id']);
        }
        //删除缓存
        cache::rm('pan_xlh_num_'.$gift_bag_id.'_'.$pan_xlh['id']);
        // 9. 构建返回结果
        return $this->buildResult($drawn_gifts);
    }

    /**
     * 巡乐会抽奖-从可用礼物中选择一个
     */
    private function selectGiftFromAvailable(array &$available_gifts)
    {
        $remaining = array_sum(array_column($available_gifts, 'remaining_number'));
        if ($remaining <= 0) {
            return null;
        }
        // 循环尝试直到抽中有效礼物
        $max_attempts = 5; // 最大尝试次数，防止无限循环
        $attempt = 0;
        $selected_gift = null;
        while ($attempt < $max_attempts && !$selected_gift) {
            $rand_value = mt_rand(1, $remaining);
            $current_sum = 0;

            foreach ($available_gifts as $gift) {
                if ($gift['remaining_number'] <= 0) {
                    continue;
                }
                $current_sum += $gift['remaining_number'];
                if ($rand_value <= $current_sum) {
                    $selected_gift = $gift;
                    break;
                }
            }
            $attempt++;
        }

        return $selected_gift;
    }
    /**
     * 巡乐会抽奖-计算结束时间
     */
    private function calculateEndTime($pan_xlh_num, $ext)
    {
        $cache_key = 'pna_xlh_selected_gift_id_' . $ext['locking_condition']['selected_gift_id'];

        if ($pan_xlh_num <= 1) {
            $add_end_time = $ext['locking_time']['tow_no_locking_time'] * 60;
            Cache::set($cache_key, $add_end_time, $add_end_time);
            return $add_end_time;
        }

        if (Cache::get($cache_key)) {
            $erci_xlh_num = Cache::get($cache_key);
            $add_end_time = $erci_xlh_num - $ext['locking_time']['next_time'] * 60;
            Cache::set($cache_key, $add_end_time, $add_end_time);
        } else {
            $add_end_time = ($ext['locking_time']['tow_no_locking_time'] - $ext['locking_time']['next_time']) * 60;
        }

        if ($add_end_time <= 30) {
            Cache::set($cache_key, 30, 30);
            return 30;
        }

        return $add_end_time;
    }
    /**
     * 巡乐会抽奖-处理中奖通知
     */
    private function handlePrizeNotification($user_id, $room_id, $pan_xlh_num, $pan_xlh_id,$locking_gift_id)
    {
        $FromUserInfo = db::name('user')->field('nickname,avatar')->where(['id' => $user_id])->find();
        $locking_gift = db::name('vs_gift')->field('gift_name')->where(['gid' => $locking_gift_id])->find();
        $room_data = db::name('vs_room')->field('room_name,user_id')->where(['id' => $room_id])->find();
        $room_user = db::name('user')->where('id',$room_data['user_id'])->field('nickname,avatar')->find();
        $end_time = db::name('vs_room_pan_xlh')->where('id',$pan_xlh_id)->value('end_time');
        //锁定礼物
        //推送礼物横幅
        $text = $FromUserInfo['nickname'] .' 巡乐会活动中锁定礼物'.$locking_gift['gift_name'].' x ' .$pan_xlh_num ;
        $push = new Push(0, $room_id);
        $text_list_new = [
            'text' => $text,
            'room_id' => $room_id,
            'from_type' => 103,
            'gift_num' => $pan_xlh_num,
            'FromUserInfo' => $FromUserInfo,
            'end_time' => $end_time,
            'room_user' => $room_user
        ];
        $push->xunlehui($text_list_new);
    }

    /**
     * 巡乐会抽奖-构建返回结果
     */
    private function buildResult($drawn_gifts)
    {
        $result_list = [];
        $gift_info_cache = [];

        foreach ($drawn_gifts as $gift_id => $count) {
            if (!isset($gift_info_cache[$gift_id])) {
                $gift_info = db::name('vs_gift')
                    ->where(['gid' => $gift_id])
                    ->find();
                $gift_info_cache[$gift_id] = $gift_info;
            } else {
                $gift_info = $gift_info_cache[$gift_id];
            }

            $result_list[] = [
                'gift_id' => $gift_id,
                'gift_name' => $gift_info['gift_name'],
                'base_image' => $gift_info['base_image'],
                'gift_price' => $gift_info['gift_price'],
                'count' => $count,
            ];
        }

        // 按价格降序排序
        usort($result_list, function($a, $b) {
            return $b['gift_price'] <=> $a['gift_price'];
        });

        return ['code' => 1, 'msg' => '成功', 'data' => $result_list];
    }
}