<?php

namespace addons\shopro\service\partner;

use app\admin\model\shopro\commission\Agent as AgentModel;

/**
 * 马豆日结 1:1 GMV 均分
 */
class MadowService
{
    public function share($settleDate, $gmv, $userIds)
    {
        $count = count($userIds);
        $pool = (float) $gmv;
        if ($pool <= 0) {
            return ['pool' => 0, 'count' => $count, 'each' => 0];
        }
        if ($count <= 0) {
            PartnerRewardService::write([
                'order_id' => PartnerRewardService::dailyOrderId($settleDate),
                'buyer_id' => 0,
                'user_id' => 0,
                'role' => 'system',
                'reward_type' => 'madow_share',
                'amount' => 0,
                'madow' => $pool,
                'base_amount' => $pool,
                'settle_date' => $settleDate,
                'ext' => ['formula' => "分母为0，马豆池 {$pool} 进平台", 'skip_reason' => ''],
                'status' => 1,
            ]);
            return ['pool' => $pool, 'count' => 0, 'each' => 0];
        }

        $each = function_exists('bcdiv') ? bcdiv((string) $pool, (string) $count, 8) : number_format($pool / $count, 8, '.', '');
        $distributed = 0;
        $dailyOrderId = PartnerRewardService::dailyOrderId($settleDate);
        $now = time();
        $chunks = array_chunk($userIds, 500);

        foreach ($chunks as $chunk) {
            AgentModel::whereIn('user_id', $chunk)->setInc('madow', $each);
            $batchRows = [];
            foreach ($chunk as $userId) {
                $batchRows[] = [
                    'order_id' => $dailyOrderId,
                    'buyer_id' => 0,
                    'user_id' => $userId,
                    'role' => 'taster',
                    'reward_type' => 'madow_share',
                    'amount' => 0,
                    'madow' => $each,
                    'base_amount' => $pool,
                    'settle_date' => $settleDate,
                    'ext' => json_encode(['formula' => "GMV {$pool} / {$count} = {$each}", 'share_user_count' => $count, 'gmv' => $pool], JSON_UNESCAPED_UNICODE),
                    'status' => 1,
                    'createtime' => $now,
                    'updatetime' => $now,
                ];
                $distributed = function_exists('bcadd') ? bcadd((string) $distributed, (string) $each, 8) : ($distributed + $each);
            }
            \think\Db::name('shopro_partner_reward')->insertAll($batchRows);
        }
        $tail = function_exists('bcsub') ? bcsub((string) $pool, (string) $distributed, 8) : round($pool - $distributed, 8);
        if ((float) $tail > 0) {
            PartnerRewardService::write([
                'order_id' => PartnerRewardService::dailyOrderId($settleDate),
                'buyer_id' => 0,
                'user_id' => 0,
                'role' => 'system',
                'reward_type' => 'madow_share',
                'amount' => 0,
                'madow' => $tail,
                'base_amount' => $pool,
                'settle_date' => $settleDate,
                'ext' => ['formula' => "尾差 {$tail} 进平台"],
                'status' => 1,
            ]);
        }

        return ['pool' => $pool, 'count' => $count, 'each' => $each];
    }

    public function rollback($settleDate)
    {
        $rows = \app\admin\model\shopro\partner\Reward::where('settle_date', $settleDate)
            ->where('reward_type', 'madow_share')
            ->where('status', 1)
            ->where('user_id', '>', 0)
            ->select();
        foreach ($rows as $row) {
            if ((float) $row->madow > 0) {
                AgentModel::where('user_id', $row->user_id)->setDec('madow', $row->madow);
            }
        }
    }
}