208 lines
8.6 KiB
PHP
208 lines
8.6 KiB
PHP
<?php
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namespace app\api\model;
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use think\Model;
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use think\Db;
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use think\Session;
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/*
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* 盲盒转盘
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* 2025-08-16
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*/
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class BlindBoxTurntableGift extends Model
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{
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// 开启自动写入时间戳字段
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protected $autoWriteTimestamp = true;
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// 定义时间戳字段名
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protected $createTime = 'createtime';
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protected $updateTime = 'updatetime';
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protected $table = 'fa_vs_gift';
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//获取奖池礼物列表
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public function get_gift_list($gift_bag_id)
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{
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$box = db::name('vs_gift_bag')->where('id',$gift_bag_id)->find();
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$gifts = db::name('vs_gift_bag_detail')->where('gift_bag_id',$gift_bag_id)->order("id desc")->select();
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$gift_list = [];
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foreach ($gifts as $key => $value) {
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$gift_data = db::name('vs_gift')->where('gid',$value['foreign_id'])->where('delete_time',0)->find();
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if($gift_data){
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$gift_list[$key]['number'] = $key;
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$gift_list[$key]['gift_id'] = $gift_data['gid'];
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$gift_list[$key]['gift_name'] = $gift_data['gift_name'];
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$gift_list[$key]['base_image'] = $gift_data['base_image'];
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$gift_list[$key]['play_image'] = $gift_data['play_image'];
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$gift_list[$key]['gift_price'] = $gift_data['gift_price'];
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}
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}
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$ext = json_decode($box['ext'],true);
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$box_gift = Db::name('vs_gift')->where('gid',$ext['gift_id'])->find();
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$result_data = [
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'title' => $box['name'],
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'rule_url' => get_system_config_value('web_site')."/api/Page/get_gift_box_rule?box_id=".$box["id"],
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'box_price' => $box_gift['gift_price'],
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'gift_list' => $gift_list,
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];
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return ['code' => 1, 'msg' => '获取成功', 'data' => $result_data];
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}
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/*
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* 抽奖
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*/
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public function draw_gift($gift_bag_id, $user_id, $gift_user_ids,$num=1,$room_id=0){
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//获取盲盒配置
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$bag_data = db::name("vs_gift_bag")->field('id,name,ext,periods')->where('id',$gift_bag_id)->find();
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$ext = json_decode($bag_data['ext'],true);
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$bag_gift = db::name("vs_gift")->where(['gid'=>$ext['gift_id']])->find();// 获取盲盒信息
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$toarray = explode(',',$gift_user_ids);
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foreach ($toarray as $gift_user_id){
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for($i = 0; $i < $num; $i++){
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$reslut_draw_gift_data = $this->draw_gift_one($gift_bag_id, $user_id, $gift_user_id,$bag_gift['gift_price'],$bag_data['periods'],$room_id);
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$reslut_draw_gift[] = $reslut_draw_gift_data['data'];
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}
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}
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$reslut_gift = [];
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$reslut_data = [];
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foreach ($reslut_draw_gift as $key => $value) {
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$gift_user_id = $value['gift_user_id'];
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$gift_id = $value['gift_id'];
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// 以 gift_user_id 和 gift_id 作为键进行分组
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$group_key = $gift_user_id . '_' . $gift_id;
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if (!isset($reslut_gift[$group_key])) {
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$reslut_gift[$group_key] = [
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'gift_user_id' => $gift_user_id,
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'gift_id' => $gift_id,
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'count' => 1,
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'gift_price' => $value['gift_price']
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];
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} else {
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$reslut_gift[$group_key]['count']++;
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}
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if (!isset($reslut_data[$gift_id])) {
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$reslut_data[$gift_id] = [
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'gift_id' => $gift_id,
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'count' => 1
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];
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}else {
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$reslut_data[$gift_id]['count']++;
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}
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}
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$reslut_gift = array_values($reslut_gift);
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//盲盒转盘抽奖记录
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$box_turntable_log = db::name('vs_blind_box_turntable_log')->insertGetId([
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'user_id' => $user_id,
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'gift_bag_id' => $gift_bag_id,
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'num' => $num,
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'room_id' => $room_id,
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'bag_price' => $bag_gift['gift_price'],
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'lottery_result' => json_encode($reslut_gift),
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'createtime' => time()
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]);
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$reslut['blind_box_turntable_id'] = $box_turntable_log;
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$reslut['reslut_list'] = array_values($reslut_data);
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return V(1,"成功", $reslut);
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}
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/*
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* 单人单次抽奖
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*/
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public function draw_gift_one($gift_bag_id, $user_id, $gift_user_id,$gift_price,$periods,$room_id=0){
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//随机获取一个礼物
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$where = [
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'gift_bag_id' => $gift_bag_id,
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'quantity' => ['>',0],
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'remaining_number' => ['>',0]
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];
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// 优化：基于剩余数量的加权随机选择
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$gift_bag_details = db::name("vs_gift_bag_detail")->where($where)->select();
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if (empty($gift_bag_details)) {
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return ['code' => 0, 'msg' => '当前盲盒无可用礼物', 'data' => []];
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}
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//奖池总的抽奖次数
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$total_quantity = db::name("vs_gift_bag_detail")->where(['gift_bag_id' => $gift_bag_id])->sum('quantity');
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// 实现加权随机算法：剩余数量越多，被抽中的概率越大
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$total_remaining = 0;
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foreach ($gift_bag_details as $gift) {
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$total_remaining += $gift['remaining_number'];
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}
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//本期当前第多少次后抽奖 总的抽奖次数- 剩余数量
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$total_draw_times = $total_quantity - $total_remaining;
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$rand_value = mt_rand(1, $total_remaining);
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$current_sum = 0;
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$gift_bag_detail = null;
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foreach ($gift_bag_details as $gift) {
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if($gift['remaining_number'] <= 0){
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continue;
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}
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if($total_draw_times < $gift['weight']){
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continue;
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}
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$current_sum += $gift['remaining_number'];
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if ($rand_value <= $current_sum) {
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$gift_bag_detail = $gift;
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break;
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}
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}
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if($gift_bag_detail){
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//获取开出礼物的信息
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$gift = db::name("vs_gift")->where(['gid'=>$gift_bag_detail['foreign_id']])->find();
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//处理礼包发放记录表
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$data = [];
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$data['user_id'] = $user_id;
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$data['gift_user_id'] = $gift_user_id;
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$data['gift_bag_id'] = $gift_bag_id;
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$data['gift_id'] = $gift_bag_detail['foreign_id'];
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$data['periods'] = $periods;
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$data['room_id'] = $room_id;
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$data['gift_price'] = $gift['gift_price'];
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$data['bag_price'] = $gift_price;
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$data['createtime'] = time();
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$result = db::name("vs_gift_bag_receive_log")->insert($data);
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if(!$result){
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return ['code' => 0, 'msg' => '失败,', 'data' => []];
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}
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//减去盲盒包礼物数量
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$ret = db::name("vs_gift_bag_detail")->where('id',$gift_bag_detail['id'])->setDec('remaining_number');
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if(!$ret){
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return ['code' => 0, 'msg' => '失败.', 'data' => []];
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}
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//判断剩余数量是否为0 为0重置，进入下一期
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$gift_bag_num = db::name("vs_gift_bag_detail")->where('gift_bag_id',$gift_bag_id)->sum('remaining_number');
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if($gift_bag_num <= 0){
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db::name("vs_gift_bag")->where('id',$gift_bag_id)->setInc('periods');
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db::name("vs_gift_bag_detail")->where('gift_bag_id',$gift_bag_id)->update(['remaining_number'=>db::raw('quantity')]);
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}
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}else{
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return ['code' => 0, 'msg' => '失败!', 'data' => []];
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}
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$result_data = [
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'user_id' => $user_id,
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'gift_user_id'=>$gift_user_id,
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'gift_id'=>$gift_bag_detail['foreign_id'],
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'gift_price'=>$gift['gift_price'],
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'is_public_screen'=>$gift['is_public_screen'],
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];
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return ['code' => 1, 'msg' => '成功', 'data' => $result_data];
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}
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/*
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* 礼物发放
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*/
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public function gift_send($send_id){
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$blind_box_turntable = db('vs_blind_box_turntable_log')->where('id',$send_id)->find();
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if(!$blind_box_turntable){
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return ['code' => 0, 'msg' => '数据不存在'];
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}
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$reslut_gift = json_decode($blind_box_turntable['lottery_result'],true);
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foreach ($reslut_gift as $key => $value) {
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$res = model('GiveGift')->give_gift($blind_box_turntable['user_id'], $value['gift_user_id'], $value['gift_id'], $value['count'],2,1, $blind_box_turntable['room_id']);
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if (isset($res) && $res['code'] != 1) {
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return V(0, $res['msg']);
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}
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}
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$res = db('BlindBoxTurntable')->where('id', $blind_box_turntable['id'])->update(['is_sued' => 1, 'updatetime' => time()]);
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return ['code' => 1, 'msg' => '成功', 'data' => $res];
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}
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}
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