<?php

namespace App\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use App\Models\ParticipantRedPacket;
class CreateParticipantPacket implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    protected $min;
    protected $max;
    protected $num;
    protected $total;
    /**
     * Create a new job instance.
     *
     * @return void
     */
    public function __construct($data)
    {
        $this->min = $data['min'];
        $this->max = $data['max'];
        $this->num = $data['num'];
        $this->total = $data['total'];
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        $min = $this->min;
        $max = $this->max;
        $num = $this->num;
        $total = $this->total;
        if ($max) {
            $packet_arr = $this->rand_section($min, $max, $num, $total);
        }else{
            $packet_arr = $this->demo($total, $num, $min);
        }
        
        ParticipantRedPacket::insert($packet_arr);
    }

    public function rand_section($min,$max,$num,$total){

        $data = array();
        if ($min * $num > $total) {
            return array();
        }
        if($max*$num < $total){
            return array();
        }
        while ($num >= 1) {
            $num--;
            $kmix = max($min, $total - $num * $max);
            $kmax = min($max, $total - $num * $min);
            $kAvg = $total / ($num + 1);
            //获取最大值和最小值的距离之间的最小值
            $kDis = min($kAvg - $kmix, $kmax - $kAvg);
            //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
            $r = ((float)(rand(1, 10000) / 10000) - 0.5) * $kDis * 2;
            $k = sprintf("%.2f", $kAvg + $r);
            $total -= $k;
            // $data[] = $k;
            $arr = [];
            $arr['price'] = $k;
            $arr['created_at']=date('Y-m-d H:i:s');
            $arr['updated_at']=date('Y-m-d H:i:s');
            $data[] = $arr;
        }
        return $data;
    }

    function demo($total, $num, $min = 0.01)
    {
        $overPlus = $total - $num * $min; // 剩余待发钱数
        $base = 0; // 总基数
        // 存放所有人数据
        $container = array();
        // 每个人保底
        for ($i = 0; $i < $num; $i++) {
            // 计算比重
            $weight = round(lcg_value() * 1000);
            $container[$i]['weight'] = $weight; // 权重
            $container[$i]['money'] = $min; // 最小值都塞进去
            $base += $weight; // 总基数
        }

        $len = $num - 1; // 下面要计算总人数-1的数据,
        for ($i = 0; $i < $len; $i++) {
            $money = floor($container[$i]['weight'] / $base * $overPlus * 100) / 100; // 向下取整,否则会超出
            $container[$i]['money'] += $money;
        }

        // 弹出最后一个元素
        array_pop($container);
        $result = array_column($container, 'money');
        $last_one = round($total - array_sum($result), 2);
        array_push($result, $last_one);
        $data = [];
        foreach ($result as $res) {
            $arr = [];
            $arr['price'] = $res;
            $arr['created_at']=date('Y-m-d H:i:s');
            $arr['updated_at']=date('Y-m-d H:i:s');
            $data[] = $arr;
        }
        return $data;
    }

}