liche/api/controllers/wxapp/liche/Pay.php

<?php
defined('WXAPP_APP') OR exit('No direct script access allowed');
/**
 * Created by vim
 * User: lcc
 * Desc: 支付接口
 * Date: 2021/06/29
 * Time: 19:47
 */
require_once APPPATH . 'controllers/wxapp/Wxapp.php';
require_once COMMPATH.'libraries/WechatPayV3.php';
class Pay extends Wxapp{
    const MIN_PRICE = 5000; //最低单笔金额

    public function __construct($inputs, $app_key){
        parent::__construct($inputs, $app_key);

        $this->load->model('app/liche/app_liche_orders_model');
        $this->load->model('receiver/order/receiver_orders_model','orders_model');
        $this->load->model('auto/auto_brand_model');
        $this->load->model('auto/auto_series_model');
        $this->load->model('biz/biz_model');

        $this->uid = $this->session['uid'];
    }

    //支付
    public function put(){
        $sid = $this->input_param('sid');
        $price = $this->input_param('price');
        $row = $this->app_liche_orders_model->get(['sid'=>$sid,'uid'=>$this->session['uid']]);
        $type_arr = $this->app_liche_orders_model->get_type_arr();
        if(!$row){
            throw new Exception('订单不存在', API_CODE_FAIL);
        }
        if($row['status']==1){
            throw new Exception('订单已支付', API_CODE_FAIL);
        }
        if($row['type']==3){ //判断服务费是否支付
            $srv_pay = $this->app_liche_orders_model->count(['o_id'=>$row['o_id'],'uid'=>$this->uid,'type'=>2,'status'=>0]);
            if($srv_pay){
                throw new Exception('请先支付委托服务费', API_CODE_FAIL);
            }
        }
        if($row['type']==1){ //判断是否存在未支付意向金
            $inten_pay = $this->app_liche_orders_model->count(['o_id'=>$row['o_id'],'uid'=>$this->uid,'type'=>4,'status'=>0]);
            if($inten_pay){
                throw new Exception('请先支付意向金', API_CODE_FAIL);
            }
        }
        if($row['total_price']>0){
            $url = http_host_com('api');
            $notify_url = $url."/wxapp/{$this->app_key}/wxnotify_v3/v2";
            if($row['type']==3){ //尾款多笔支付
                $is_pay = $this->app_liche_orders_model->sum('total_price',['status'=>1,'uid'=>$this->uid,'pid'=>$row['id']]); //已支付金额
                $need_pay = $row['total_price'] - $is_pay['total_price']; //需支付金额
                if($need_pay<=0){
                    throw new Exception('订单已支付完成无需支付'.$need_pay, API_CODE_FAIL);
                }
                if($price && $price<self::MIN_PRICE){
                    throw new Exception('单笔金额不得低于'.self::MIN_PRICE, API_CODE_FAIL);
                }
                if($price>$need_pay){
                    throw new Exception('输入金额有误,你最高只需支付'.$need_pay, API_CODE_FAIL);
                }
                $total = $price ? $price : $need_pay;
                $sub_order = $this->app_liche_orders_model->get(['total_price'=>$total,'uid'=>$this->uid,'pid'=>$row['id'],'status'=>0]); //金额相同未支付订单
                if(!$sub_order){
                    $sid = create_order_no(350200,'liche',1,$row['type']);
                    $sub_data = [
                        'o_id' => $row['o_id'],
                        'sid' => $sid,
                        'uid' => $this->uid,
                        'mch_id' => $row['mch_id'],
                        'pid' => $row['id'],
                        'brand_id' => $row['brand_id'],
                        's_id' => $row['s_id'],
                        'v_id' => $row['v_id'],
                        'cor_id' => $row['cor_id'],
                        'incor_id' => $row['incor_id'],
                        'total_price' => $total,
                        'type' => 3,
                        'c_time' => time()
                    ];
                    $res = $this->app_liche_orders_model->add($sub_data);
                    if(!$res){
                        throw new Exception('创建订单失败', API_CODE_FAIL);
                    }
                    $sub_order['sid'] = $sid;
                }
                $out_trade_no = $sub_order['sid'];
            }else{
                $total = $row['total_price'];
                $out_trade_no = $row['sid'];
            }
            if($this->uid<=10){
                $total = 0.01;
            }
            $order_row = $this->orders_model->get(['id'=>$row['o_id']],'name,brand_id,s_id,biz_id');
            $brand_row = $this->auto_brand_model->get(['id'=>$order_row['brand_id']],'name');
            $s_row = $this->auto_series_model->get(['id'=>$order_row['s_id']],'name');
            $biz_row = $this->biz_model->get(['id'=>$order_row['biz_id']],'biz_name');
            $type_name = $type_arr[$row['type']];
            $description = "{$brand_row['name']}{$s_row['name']}-{$order_row['name']}-{$biz_row['biz_name']}-{$type_name}";
            $this->config->load('wxpay');
            $wx_config = $this->config->item('default');
            $params = [
                'merchantId' => $wx_config['mchid'],
                'merchantSerialNumber' => $wx_config['merchantSerialNumber'],
                'merchantPrivateKey' => $wx_config['merchantPrivateKey'],
                'wechatpayCertificate' => $wx_config['wechatpayCertificate'],
            ];
            $WechatPayV3 = new WechatPayV3($params);
            $json = [
                'sp_appid' => $wx_config['appid'],
                'sp_mchid' => $wx_config['mchid'],
                'sub_appid' => $wx_config['sub_appid'],
                'sub_mchid' => $row['mch_id'],
                'description' => $description,
                'out_trade_no' => $out_trade_no,
                'notify_url' => $notify_url,
                'settle_info' => [
                    'profit_sharing' => false
                ],
                'amount' => [
                    'total' => $total*100,
                ],
                'payer' => [
                    'sub_openid' => $this->session['openid']
                ],
            ];
            $noncestr = getNonceStr(20);
            $resq = $WechatPayV3->unifiedOrder($json,$json['sub_appid'],$noncestr);
            if(!$resq['code']){
                debug_log("[下单失败]:" . $resq['msg'], 'underorder.log','wxpay');
                throw new Exception('微信下单失败', API_CODE_FAIL);
            }
            $result = $resq['data'];
        }else{
            $this->load->service('apporder/payment_service', array('app_id' => $this->app_id));
            $result = $this->payment_service->after_pay_liche($sid);
        }
        return $result;
    }

}