<?php

namespace addons\LuckyGroup\common\logic\order;

use addons\LuckyGroup\common\models\LuckyGroupWinLog;
use common\enums\StatusEnum;

class LotteryRulesLogic
{
    public function checkWinOrLoss($mall_id, $joining_orders,$user_id_arr, $attend_order_num, $random_win_num, $conf)
    {
        srand();
        $ping_tuan_limit = $conf['ping_tuan_limit'] ?? 0;//拼团限制开关
        $win_keys = [];
        switch ($ping_tuan_limit) {
            case 0:
                //默认规则
                $win_keys = $this->rulesInit($joining_orders, $attend_order_num, $random_win_num);
                break;
            case 1:
                //累计拼中N次，连续拼不种N次
                $win_keys = $this->rules2($conf, $joining_orders,$user_id_arr, $mall_id, $random_win_num);
                break;
            default:

        }
        return $win_keys;

    }

    //默认规则
    private function rulesInit($joining_orders, $attend_order_num, $random_win_num)
    {
        $win_keys= [];
        if($joining_orders){
            if ($attend_order_num >= $random_win_num) {
                if(!empty($random_win_num)){
                    $win_keys = array_rand($joining_orders, $random_win_num); //随机拼中key
                }
            } else {
                $win_keys = array_rand($joining_orders, $attend_order_num); //随机拼中key
            }
        }
        return $win_keys;
    }

    //规则2
    private function rules2($conf, $joining_orders,$user_id_arr, $mall_id, $random_win_num)
    {
        $win_keys = [];
        if(!empty($random_win_num)){
            $ping_tuan_limit_win = $conf['ping_tuan_limit_win'] ?? 0;//累计拼中次数
            $ping_tuan_limit_lose = $conf['ping_tuan_limit_lose'] ?? 0;//连续拼不中次数
            //开团时，所有参团人员都不满足限制，不随机拼中，则所有参团人员都拼团失败  1：随机；2：不随机
            $limit_win_radio = $conf['ping_tuan_limit_win_radio'] ?? 1;
            $have_qualification = $have_no_qualification = [];
            $win_log_list = LuckyGroupWinLog::lists([
                'where' => [
                    ['mall_id' => $mall_id],
                    ['status' => StatusEnum::ENABLED],
                    ['user_id' => $user_id_arr],
                ],
                'select' => 'user_id,sum(win_num) as win_num,sum(loss_num) as loss_num',
                'index' => 'user_id',
                'group' => 'user_id'
            ]);
            foreach ($joining_orders as $key => $order) {
                if (!isset($win_log_list[$order['user_id']])) {
                    $have_qualification[$key] = $order;//第一次参与该拼团活动,有拼中资格
                    continue;
                }
                $win_num = $win_log_list[$order['user_id']]['win_num'] ?? 0;
                $loss_num = $win_log_list[$order['user_id']]['loss_num'] ?? 0;
                if (!empty($win_num) && !empty($ping_tuan_limit_win) && $win_num % $ping_tuan_limit_win == 0) {
                    if ($loss_num < $ping_tuan_limit_lose) {
                        $have_no_qualification[$key] = $order;//没有拼中资格
                    } else {
                        //达到累计拼中次数n次后，连续n次拼不中条件
                        $have_qualification[$key] = $order;//有拼中资格
                    }
                } else {
                    //没有拼中记录或者用户累计拼中次数对设置的累计拼中次数取模不等0
                    $have_qualification[$key] = $order;//有拼中资格
                }
            }

            if (empty($have_qualification)) {
                if ($limit_win_radio == 1) $win_keys = array_rand($have_no_qualification, $random_win_num); //随机拼中key
                return $win_keys;
            }
            $count = count($have_qualification);
            if ($count >= $random_win_num) {
                $win_keys = array_rand($have_qualification, $random_win_num); //随机拼中key
                return $win_keys;
            }
            $win_key1 = array_keys($have_qualification);//拼中key
            $win_key2 = [];
            if ($limit_win_radio == 1) {
                $count = $random_win_num - $count;
                $win_key2 = array_rand($have_no_qualification, $count); //随机拼中key
                if (!is_array($win_key2)) $win_key2 = [$win_key2];
            }
            $win_keys = array_merge($win_key1, $win_key2);
        }
        return $win_keys;


    }
}