<?php

namespace App\Libs;

use App\Events\RechargeSucceed;
use Exception;

use App\Models\Recharge;

class WxMicroPay extends WxPayCommon
{
    public $pay_url = "https://api.mch.weixin.qq.com/pay/micropay";

    /**
     *
     * 扫码支付，并且确认结果，接口比较慢
     * @param  $recharge
     */
    public function pay(Recharge $recharge)
    {
        //提交被扫支付
        try {
            $this->setParameter("out_trade_no", $recharge->serial);
            $this->setParameter("body", "充值{$recharge->money}元" . ($recharge->project ? "-" . $recharge->project->name : ""));
            $this->setParameter("total_fee", $recharge->money * 100);
            $this->setParameter("auth_code", request()->auth_code);

            if (!$this->parameters["out_trade_no"]) {
                throw new Exception("缺少必填参数out_trade_no！");
            } elseif (!$this->parameters["body"]) {
                throw new Exception("缺少必填参数body！");
            } elseif (!$this->parameters["total_fee"]) {
                throw new Exception("缺少必填参数total_fee！");
            } elseif (!$this->parameters["auth_code"]) {
                throw new Exception("缺少必填参数auth_code！");
            } elseif (strlen((string)$this->parameters["auth_code"]) != 18) {
                \Log::info("支付码不正确");
                \Log::info($this->parameters);
                \Log::info(request()->all());
                throw new Exception("支付码不正确！");
            }

            $xml = $this->createXml();
            $result = $this->postXmlCurl($xml, $this->pay_url);
            \Log::info($result);
            $result = $this->xmlToArray($result);

            //判断接口是否返回成功
            if (!array_key_exists("return_code", $result) || !array_key_exists("result_code", $result)) {
                throw new Exception(json_encode($result, JSON_UNESCAPED_UNICODE));
            }
            if ($result["return_code"] == "SUCCESS" && $result["result_code"] == "FAIL" && $result["err_code"] != "USERPAYING" && $result["err_code"] != "SYSTEMERROR") {
                throw new Exception("支付失败！");
            }
        } catch (Exception $exception) {
            return $exception;
        }

        //查询支付结果
        try {
            $out_trade_no = $this->parameters["out_trade_no"];
            $query_times = 15;
            while ($query_times > 0) {
                $query_result = $this->orderQuery($out_trade_no);
                if ($query_result["return_code"] != "SUCCESS" && $result["result_code"] != "SUCCESS") {
                    sleep(2);
                    $query_times--;
                    continue;
                } elseif (!isset($query_result["trade_state"])) {
                    sleep(2);
                    $query_times--;
                    continue;
                } elseif ($query_result["trade_state"] == "USERPAYING") {
                    sleep(2);
                    $query_times--;
                    continue;
                } elseif ($query_result["trade_state"] == "SUCCESS") {
                    $transaction_id = $query_result["transaction_id"];
                    $update = [
                        "paid_at" => date("Y-m-d H:i:s"),
                        "payment_serial" => $transaction_id
                    ];
                    $recharge->update($update);
                    //充值成功后处理
                    event(new RechargeSucceed($recharge));
                    return true;
                }
                $query_times--;
            }
        } catch (Exception $exception) {
            return $exception;
        }
    }

    public function manualQuery(Recharge $recharge)
    {
        $query_result = $this->orderQuery($recharge->serial);
        if (!isset($query_result["trade_state"])) {
            return false;
        }
        if ($query_result["trade_state"] == "SUCCESS") {
            if (!$recharge->paid_at) {
                $transaction_id = $query_result["transaction_id"];
                $datetime =
                    substr($query_result["time_end"], 0, 4) . "-"
                    . substr($query_result["time_end"], 4, 2) . "-"
                    . substr($query_result["time_end"], 6, 2) . " "
                    . substr($query_result["time_end"], 8, 2) . ":"
                    . substr($query_result["time_end"], 10, 2) . ":"
                    . substr($query_result["time_end"], 12, 2);
                $update = [
                    "paid_at" => $datetime,
                    "payment_serial" => $transaction_id
                ];
                $recharge->update($update);
                //充值成功后处理
                event(new RechargeSucceed($recharge));
            }
            return true;
        } else {
            return false;
        }
    }

    //todo: 取消支付单
}