<?php

namespace App\Module\Fund\Services;


use App\Module\Fund\Enums\FUND_TYPE;
use App\Module\Fund\Enums\LOG_TYPE;
use App\Module\Fund\Models\FundAdminModel;
use App\Module\Fund\Models\FundModel;
use App\Module\Fund\Service\Circulation;
use App\Module\Fund\Service\Transfer;
use App\Module\Fund\Service\User;
use Illuminate\Support\Facades\DB;
use UCore\Db\Helper;


class FundService
{

    private int $userId;
    private int $fundId;
    private FundModel $fundModel;

    public function __construct(int $userId,  $fundId)
    {
        $this->userId = $userId;
        if(is_int($fundId)){
            $this->fundId = $fundId;
        }else{
            $this->fundId = $fundId->valueInt();
        }

        $this->fundModel = FundModel::query()
            ->where('user_id', $userId)
            ->where('fund_id', $fundId)
            ->first();
    }


    /**
     * 资金流转
     * (同用户，同币种，不同账户)
     *
     * @param  int  $to_fund
     * @param  int  $amount
     * @param  string  $remark
     */
    public function circulation(FUND_TYPE $to_fund_id, int $amount, int $re_id, string $re_type, string $remark)
    {
        # 确认货币种类一致
        if (!CurrencyService::check($this->fundId, $to_fund_id->valueInt())) {
            return '币种不一致,禁止划转';
        }

        # 实例化操作对象


        Helper::check_tr();
        # 先进行转账记录
        $re_id = Circulation::handle($this->userId, $this->fundId, $to_fund_id->valueInt(), $amount, $re_id, $re_type,
            $remark);
        if (is_string($re_id)) {
            return $re_id;
        }
        # 进行双方的资金修改
        # 先减少自己的
        $re46 = User::handle($this->userId, $this->fundId, -$amount, LOG_TYPE::CIRCULATION, $re_id, $remark);
        if (is_string($re46)) {
            return $re46;
        }
        # 再增加自己另一个账户
        $re51 = User::handle($this->userId, $to_fund_id->valueInt(), $amount, LOG_TYPE::CIRCULATION, $re_id, $remark);


        if (is_string($re51)) {
            return $re51;
        }

        return true;
    }

    /**
     * 获取余额
     */
    public function balance(): int
    {
        return $this->fundModel->balance ?? 0;
    }

    /**
     * 转账
     * （不同人，同账户/同币种）
     */
    public function transfer(int $toUserId, int $amount, string $remark)
    {
        # 实例化操作对象

        # 开启事务
        DB::beginTransaction();
        # 先进行转账记录
        $transfer_id = Transfer::to_user(
            $this->userId,
            $this->fundId,
            $toUserId,
            $amount,
            $remark);
        if (is_string($transfer_id)) {

            DB::rollBack();

            return $transfer_id;
        }
        # 进行双方的资金修改
        # 先减少自己的
        $re46 = User::handle($this->userId, $this->fundId, -$amount, LOG_TYPE::TRANSFER, $transfer_id, $remark);
        if (is_string($re46)) {

            DB::rollBack();


            return $re46;
        }
        # 再增加别人的
        $re51 = User::handle($toUserId, $this->fundId, $amount, LOG_TYPE::TRANSFER, $transfer_id, $remark);
        if (is_string($re51)) {

            DB::rollBack();

            return $re51;
        }
        DB::commit();

        return true;
    }


    /**
     * 贸易(业务关联)
     * 同账户/同币种，不同用户
     *
     * @param  int  $toUserId
     * @param  int  $amount
     * @param  string  $transfer_type
     * @param  string  $transfer_id
     * @param  string  $remark
     * @return string|true
     */
    public function trade(int $toUserId, int $amount, $transfer_type, $transfer_id, string $remark)
    {
        # 检查事务开启
        Helper::check_tr();
        $transfer_id = $transfer_type.'-'.$transfer_id;
        # 先减少自己的
        $re46 = User::handle($this->userId, $this->fundId, -$amount, LOG_TYPE::TRADE, $transfer_id, $remark);

        if (is_string($re46)) {
            \UCore\Trace::addData('error', $re46);

            return $re46;
        }
        # 再增加别人的
        $re51 = User::handle($toUserId, $this->fundId, $amount, LOG_TYPE::TRANSFER, $transfer_id, $remark);
        if (is_string($re51)) {
            \UCore\Trace::addData('error', $re51);

            return $re51;
        }

        return true;
    }


    /**
     * Admin 资金操作
     *
     * @param  int  $admin_id
     * @param  FUND_TYPE  $fund_id
     * @param  int  $fund_fee
     * @param $remark
     * @return bool|string
     */
    public function admin_operate(int $admin_id, FUND_TYPE $fund_id, int $fund_fee, $remark)
    {

        $data = [
            'total_fee' => $fund_fee,
            'status' => 1,
            'user_id' => $this->userId,
            'fund_id' => $fund_id->valueInt(),
            'admin_id' => $admin_id,
            'create_time' => time(),
            'remark' => $remark
        ];

        # 启动事务
        DB::beginTransaction();
        # 写日志
        $fund_admin = new FundAdminModel();
        $fund_admin->setData($data);
        if ($fund_admin->save() === false) {
            DB::rollBack();

            return '_Model-error';
        }
        # 进行资金操作
        $re = \App\Module\Fund\Service\User::handle($this->userId, $fund_id->value, $fund_fee,
            \App\Module\Fund\Enums\LOG_TYPE::ADMIN, $fund_admin->id, $remark);
        if (is_string($re)) {
            DB::rollBack();

            return $re;
        }
        DB::commit();

        return $re;
    }

}