kknongchang_2506/app/Module/Fund/Logic/User.php

<?php

namespace App\Module\Fund\Logic;

use App\Module\Fund\Enums\LOG_TYPE;
use App\Module\Fund\Events\FundChangedEvent;
use App\Module\Fund\Models\FundLogModel;
use App\Module\Fund\Models\FundModel;
use Illuminate\Support\Facades\Event;
use UCore\Helper\Logger;

/**
 * Class User 用户的资金操作
 *
 * @package App\Logic\Fund\Service
 */
class User
{

    /**
     * 列表
     *
     * @param $where
     * @param $page
     * @param  int  $rows
     */
    public static function fund_list($where, $page, $rows = 10)
    {
        $query = FundModel::query();

        // 应用过滤条件
        if (isset($where['user_id'])) {
            $query->where('user_id', $where['user_id']);
        }

        if (isset($where['fund_id'])) {
            $query->where('fund_id', $where['fund_id']);
        }

        // 返回分页结果
        return $query->paginate($rows, ['*'], 'page', $page);

    }


    /**
     * 用户资金修改日志
     *
     * @param $user_id 用户uid
     * @param $page 当前页数
     * @param  int  $rows  每页行数
     */
    public static function log_list($user_id, $fund_id, $where, $page, $rows = 10)
    {

    }


    /**
     *
     * 资金处理
     *
     * @param $user_id
     * @param $fund_id
     * @param $amount
     * @param $type
     * @param $id
     * @param $remark
     * @return bool|string
     */
    public static function handle($user_id, int $fund_id, int $amount, LOG_TYPE $type, $id, $remark)
    {

        # 读取信息
        $data_Model = self::get_account($user_id, $fund_id);
        if ($data_Model === false) {
            return "_don~t have this account";
        }
        if (!($data_Model instanceof FundModel)) {
            return $data_Model;
        }

        # 记录变更前的余额
        $beforeBalance = $data_Model->balance;

        # 预先验证余额是否充足（在扣除之前检查）
        $afterBalance = $data_Model->balance + $amount;
        if ($afterBalance < 0) {
            // 可用资金不足，拒绝操作
            Logger::error("fund -handle $user_id - $fund_id insufficient funds: current={$data_Model->balance}, amount=$amount, after=$afterBalance");
            return "not-sufficient-funds $user_id - $fund_id : $amount ; {$data_Model->balance}";
        }

        # 先写入日志
        $re26 = self::log($data_Model, $user_id, $fund_id, $amount, $type, $id, $remark);
        if (is_string($re26)) {
            return $re26;
        }

        # 更新资金信息（此时已经验证过余额充足）
        $data_Model->update_time = time();
        $data_Model->balance = $afterBalance;
        if ($data_Model->save() === false) {
            return $data_Model->getMessage();
        }

        # 触发资金变更事件
        Event::dispatch(new FundChangedEvent(
            $user_id,
            $fund_id,
            $amount,
            $beforeBalance,
            $data_Model->balance,
            $type->value(),
            $id,
            $remark
        ));

        return true;
    }

    /**
     * 获取账户模型
     *
     * @param $user_id
     * @param $fund_id
     * @return fund|string
     */
    public static function get_account($user_id, $fund_id, $create = false)
    {

        $Model = FundModel::getAccount($user_id, $fund_id);
        if ($Model === null) {
            if ($create) {
                # 当前账户不存在尝试创建
                $Model = self::create_account($user_id, $fund_id);
                if (is_string($Model)) {
                    // 创建失败
                    return $Model;
                }
            } else {
                throw new \Exception("账户不存在$user_id - $fund_id .");
            }

            return FundModel::getAccount($user_id, $fund_id);
        }

        return $Model;
    }

    /**
     * 创建账户 不会进行账户是否存在验证
     *
     * @param $user_id
     * @param $fund_id
     * @return \Fund\Model\Fund|string
     */
    private static function create_account($user_id, $fund_id)
    {
        $data = [
            'user_id' => $user_id,
            'fund_id' => $fund_id,
            'balance' => 0,
            'create_time' => time(),
            'update_time' => time(),
        ];
        $fundModel = new FundModel();
        $fundModel->setData($data);
        if ($fundModel->save() === false) {
            return 'sys error';
        }

        return $fundModel;
    }

    /**
     * 写入更新日志
     *
     * @param $user_id
     * @param $fund_id
     * @param $amount
     * @param $type
     * @param $id
     * @param $remark
     */
    private static function log(
        FundModel $data_Model,
        $user_id,
        $fund_id,
        $amount,
        LOG_TYPE $type,
        $id,
        $remark,
        $create_ip = ''
    ) {
        // 读取最新的余额信息

        $later_balance = $data_Model->balance + $amount;
        $before_balance = $data_Model->balance;
        # 读取最后一条记录进行验证

        $lastLog = FundLogModel::findLastUserFund($user_id, $fund_id);
        //        dump($data8);
        # 读取最新的余额信息
        if ($lastLog === null) {
            $data8_arr = [];
            # 没有日志判断是否为0
            if (bccomp(0, $data_Model->balance, 3) !== 0) {
                # 前后效验不通过,
                Logger::error('前后效验不通过'."  user_id: $user_id , fund_id :$fund_id ");
                return '_fund-log-validation-fails-201';
            }
        } else {

            //            dump($lastLog);
            if (bccomp($lastLog->later_balance, $data_Model->balance, 3) !== 0) {
                # 前后效验不通过,

                Logger::error('fund-error', [$lastLog->toArray(), $data_Model->toArray()]);

                return '_fund-log-validation-fails-210';
            }

        }

        return Log::create_log($user_id, $fund_id, $amount, $remark, $later_balance, $before_balance, $id,
            $type->value(), $lastLog);

    }

    /**
     * 获取账户信息
     *
     * @param $user_id
     * @param $fund_id
     */
    public static function info($user_id, $fund_id)
    {
        $ModelData = self::get_account($user_id, $fund_id);

        return $ModelData->toArray();

    }

    /**
     * @param $userId
     * @param $fundIds
     * @return mixed[]
     * 获取用户全部资金账户
     */
    public static function getAllAccount($userId,$fundIds)
    {
        $modelData = FundModel::getAllAccount($userId,$fundIds);
        return $modelData->toArray();
    }
}