<?php

namespace app\api\service\Server;

use app\api\model\Payment as PaymentModel;
use app\api\model\PaymentTrade as PaymentTradeModel;
use app\api\model\Server\ServerOrder;
use app\api\service\Order as OrderService;
use app\api\service\User as UserService;
use app\common\enum\Client as ClientEnum;
use app\common\enum\OrderType as OrderTypeEnum;
use app\common\enum\payment\Method as PaymentMethodEnum;
use app\common\library\payment\Facade as PaymentFacade;
use app\common\service\BaseService;
use cores\exception\BaseException;
use think\db\exception\DataNotFoundException;
use think\db\exception\DbException;
use think\db\exception\ModelNotFoundException;

class ServerPayment extends BaseService
{
    // 提示信息
    private string $message = '';

    // 订单信息
    private ServerOrder $orderInfo;

    // 支付方式 (余额、微信支付、支付宝)
    private string $method = '';

    // 下单的客户端
    private string $client = '';

    //未支付的订单ID
    private int $orderId;

    /**
     * 设置支付的订单ID
     * @param int $orderId 订单ID
     */
    public function setOrderId(int $orderId): ServerPayment
    {
        $this->orderId = $orderId;
        return $this;
    }

    /**
     * 设置当前支付方式
     * @param string $method 支付方式
     * @return $this
     */
    public function setMethod(string $method): ServerPayment
    {
        $this->method = $method;
        return $this;
    }

    /**
     * 设置下单的客户端
     * @param string $client 客户端
     * @return $this
     */
    public function setClient(string $client): ServerPayment
    {
        $this->client = $client;
        return $this;
    }

    /**
     * 返回消息提示
     * @return string
     */
    public function getMessage(): string
    {
        return $this->message;
    }

    /**
     * @notes:获取支付订单的信息
     * @return array
     * @throws BaseException
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @author: wanghousheng
     */
    public function orderInfo(): array
    {
        // 当期用户信息
        $userInfo = UserService::getCurrentLoginUser(true);
        // 根据指定客户端获取可用的支付方式
        $PaymentModel = new PaymentModel;
        $methods = $PaymentModel->getMethodsByClient($this->client);
        // 获取结算订单信息
        $OrderModel = new ServerOrder();
        $orderInfo = $OrderModel->getUnpaidOrderDetail($this->orderId);
        return [
            'order' => $orderInfo,
            'personal' => $userInfo,
            'paymentMethods' => $methods
        ];
    }

    /**
     * @notes:确认订单支付事件
     * @param array $extra 附加数据
     * @return array
     * @throws BaseException
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @author: wanghousheng
     */
    public function orderPay(array $extra = []): array
    {
        // 获取订单信息
        $this->orderInfo = ServerOrder::getDetail($this->orderId);
        // 订单支付事件
        $this->orderPayEvent();
        // 构建第三方支付请求的参数
        $payment = $this->unifiedorder($extra);
        // 记录第三方交易信息
        $this->recordPaymentTrade($payment);
        // 返回结果
        return compact('payment');
    }

    /**
     * 订单支付事件
     * @return void
     * @throws BaseException
     * @author: wanghousheng
     */
    private function orderPayEvent(): void
    {
        // 余额支付
        if ($this->method == PaymentMethodEnum::BALANCE) {
            $this->orderPaySuccess($this->orderInfo['order_no']);
        }
    }

    /**
     * 获取支付方式的配置信息
     * @return mixed
     * @throws BaseException
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @author: wanghousheng
     */
    private function getPaymentConfig()
    {
        $PaymentModel = new PaymentModel;
        $templateInfo = $PaymentModel->getPaymentInfo($this->method, $this->client, $this->getStoreId());
        return $templateInfo['template']['config'][$this->method];
    }

    /**
     * 获取支付宝端的用户buyerId(仅支付宝小程序端)
     * @return null
     * @throws BaseException
     * @author: wanghousheng
     */
    private function getAlipayBuyerId()
    {
        if ($this->client == ClientEnum::MP_ALIPAY) {
            // 当前登录用户信息
            $useInfo = UserService::getCurrentLoginUser(true);
            if (!$useInfo['currentOauth'] || empty($useInfo['currentOauth']['oauth_id'])) {
                throwError('很抱歉，您当前不存在buyerId 无法发起支付宝支付');
            }
            // 当前第三方用户标识
            return $useInfo['currentOauth']['oauth_id'];
        }
        return null;
    }

    /**
     * 整理下单接口所需的附加数据
     * @param array $extra
     * @return array
     * @throws BaseException
     * @author: wanghousheng
     */
    private function extraAsUnify(array $extra = []): array
    {
        // 微信支付时需要的附加数据
        if ($this->method === PaymentMethodEnum::WECHAT) {
            // 微信小程序端和微信公众号端需要openid
            if (in_array($this->client, [ClientEnum::WXOFFICIAL, ClientEnum::MP_WEIXIN])) {
                $extra['openid'] = $this->getWechatOpenid();
            }
        }
        // 支付宝支付时需要的附加数据
        if ($this->method === PaymentMethodEnum::ALIPAY) {
            // 支付宝小程序端需要buyerId
            if ($this->client == ClientEnum::MP_ALIPAY) {
                $extra['buyerId'] = $this->getAlipayBuyerId();
            }
        }
        return $extra;
    }

    /**
     * 获取微信端的用户openid(仅微信小程序和微信公众号)
     * @return null
     * @throws BaseException
     * @author: wanghousheng
     */
    private function getWechatOpenid()
    {
        if (in_array($this->client, [ClientEnum::MP_WEIXIN, ClientEnum::WXOFFICIAL])) {
            // 当前登录用户信息
            $useInfo = UserService::getCurrentLoginUser(true);
            if (!$useInfo['currentOauth'] || empty($useInfo['currentOauth']['oauth_id'])) {
                throwError('很抱歉，您当前不存在openid 无法发起微信支付');
            }
            // 当前第三方用户标识
            return $useInfo['currentOauth']['oauth_id'];
        }
        return null;
    }

    /**
     * 查询订单是否支付成功 (仅限第三方支付订单)
     * @param string $outTradeNo 商户订单号
     * @return bool
     * @throws BaseException
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @author: wanghousheng
     */
    public function tradeQuery(string $outTradeNo): bool
    {
        // 判断支付方式是否合法
        if (!in_array($this->method, [PaymentMethodEnum::WECHAT, PaymentMethodEnum::ALIPAY])) {
            return false;
        }
        // 获取支付方式的配置信息
        $options = $this->getPaymentConfig();
        // 构建支付模块
        $Payment = PaymentFacade::store($this->method)->setOptions($options, $this->client);
        // 执行第三方支付查询API
        $result = $Payment->tradeQuery($outTradeNo);
        // 订单支付成功事件
        if (!empty($result) && $result['paySuccess']) {
            // 获取第三方交易记录信息
            $tradeInfo = PaymentTradeModel::detailByOutTradeNo($outTradeNo);
            // 订单支付成功事件
            $this->orderPaySuccess($tradeInfo['order_no'], $tradeInfo['trade_id'], $result);
        }
        // 返回订单状态
        return $result ? $result['paySuccess'] : false;
    }

    /**
     * 构建第三方支付请求的参数
     * @param array $extra 附加数据
     * @return array
     * @throws BaseException
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @author: wanghousheng
     */
    private function unifiedorder(array $extra = []): array
    {
        // 判断支付方式是否合法
        if (!in_array($this->method, [PaymentMethodEnum::WECHAT, PaymentMethodEnum::ALIPAY])) {
            return [];
        }
        // 生成第三方交易订单号 (并非主订单号)
        $outTradeNo = OrderService::createOrderNo();
        // 获取支付方式的配置信息
        $options = $this->getPaymentConfig();
        // 整理下单接口所需的附加数据
        $extra = $this->extraAsUnify($extra);
        // 构建支付模块
        $Payment = PaymentFacade::store($this->method)->setOptions($options, $this->client);
        // 执行第三方支付下单API
        if (!$Payment->unify($outTradeNo, (string)$this->orderInfo['pay_price'], $extra)) {
            throwError('第三方支付下单API调用失败');
        }
        // 返回客户端需要的支付参数
        return $Payment->getUnifyResult();
    }

    /**
     * 记录第三方交易信息
     * @param array $payment 第三方支付数据
     * @throws BaseException
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     * @author: wanghousheng
     */
    private function recordPaymentTrade(array $payment): void
    {
        if ($this->method != PaymentMethodEnum::BALANCE) {
            PaymentTradeModel::record(
                $this->orderInfo,
                $this->method,
                $this->client,
                OrderTypeEnum::SERVER,
                $payment
            );
        }
    }

    /**
     * 订单支付成功事件
     * @param string $orderNo 当前订单号
     * @param int|null $tradeId 第三方交易记录ID
     * @param array $paymentData 第三方支付成功返回的数据
     * @return void
     * @throws BaseException
     * @author: wanghousheng
     */
    private function orderPaySuccess(string $orderNo, ?int $tradeId = null, array $paymentData = []): void
    {
        // 获取订单详情
        $service = new PaySuccess();
        // 订单支付成功业务处理
        $service->setOrderNo($orderNo)->setMethod($this->method)->setTradeId($tradeId)->setPaymentData($paymentData);
        if (!$service->handle()) {
            throwError($service->getError() ?: '订单支付失败');
        }
        $this->message = '恭喜您，订单支付成功';
    }
}