120 lines
3.5 KiB
PHP
120 lines
3.5 KiB
PHP
<?php
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namespace App\Jobs;
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use Illuminate\Bus\Queueable;
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use Illuminate\Queue\SerializesModels;
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use Illuminate\Queue\InteractsWithQueue;
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use Illuminate\Contracts\Queue\ShouldQueue;
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use Illuminate\Foundation\Bus\Dispatchable;
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use App\Models\ParticipantRedPacket;
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class CreateParticipantPacket implements ShouldQueue
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{
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use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
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protected $min;
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protected $max;
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protected $num;
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protected $total;
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/**
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* Create a new job instance.
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*
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* @return void
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*/
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public function __construct($data)
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{
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$this->min = $data['min'];
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$this->max = $data['max'];
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$this->num = $data['num'];
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$this->total = $data['total'];
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}
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/**
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* Execute the job.
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*
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* @return void
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*/
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public function handle()
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{
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$min = $this->min;
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$max = $this->max;
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$num = $this->num;
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$total = $this->total;
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if ($max) {
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$packet_arr = $this->rand_section($min, $max, $num, $total);
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}else{
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$packet_arr = $this->demo($total, $num, $min);
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}
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ParticipantRedPacket::insert($packet_arr);
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}
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public function rand_section($min,$max,$num,$total){
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$data = array();
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if ($min * $num > $total) {
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return array();
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}
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if($max*$num < $total){
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return array();
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}
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while ($num >= 1) {
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$num--;
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$kmix = max($min, $total - $num * $max);
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$kmax = min($max, $total - $num * $min);
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$kAvg = $total / ($num + 1);
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//获取最大值和最小值的距离之间的最小值
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$kDis = min($kAvg - $kmix, $kmax - $kAvg);
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//获取0到1之间的随机数与距离最小值相乘得出浮动区间，这使得浮动区间不会超出范围
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$r = ((float)(rand(1, 10000) / 10000) - 0.5) * $kDis * 2;
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$k = sprintf("%.2f", $kAvg + $r);
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$total -= $k;
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// $data[] = $k;
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$arr = [];
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$arr['price'] = $k;
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$arr['created_at']=date('Y-m-d H:i:s');
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$arr['updated_at']=date('Y-m-d H:i:s');
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$data[] = $arr;
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}
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return $data;
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}
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function demo($total, $num, $min = 0.01)
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{
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$overPlus = $total - $num * $min; // 剩余待发钱数
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$base = 0; // 总基数
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// 存放所有人数据
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$container = array();
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// 每个人保底
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for ($i = 0; $i < $num; $i++) {
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// 计算比重
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$weight = round(lcg_value() * 1000);
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$container[$i]['weight'] = $weight; // 权重
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$container[$i]['money'] = $min; // 最小值都塞进去
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$base += $weight; // 总基数
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}
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$len = $num - 1; // 下面要计算总人数-1的数据,
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for ($i = 0; $i < $len; $i++) {
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$money = floor($container[$i]['weight'] / $base * $overPlus * 100) / 100; // 向下取整,否则会超出
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$container[$i]['money'] += $money;
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}
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// 弹出最后一个元素
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array_pop($container);
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$result = array_column($container, 'money');
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$last_one = round($total - array_sum($result), 2);
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array_push($result, $last_one);
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$data = [];
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foreach ($result as $res) {
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$arr = [];
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$arr['price'] = $res;
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$arr['created_at']=date('Y-m-d H:i:s');
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$arr['updated_at']=date('Y-m-d H:i:s');
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$data[] = $arr;
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}
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return $data;
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}
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}
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