package services

import (
	"PaymentCenter/app/constants/common"
	"PaymentCenter/app/constants/errorcode"
	"PaymentCenter/app/http/entities/front"
	"PaymentCenter/app/models/paychannelmodel"
	"PaymentCenter/app/utils"
	"PaymentCenter/app/utils/httpclient"
	"PaymentCenter/config"
	"encoding/json"
	"fmt"
	"net/url"
	"strconv"
)

// 获取授权链接
func GetWxAuthUrl(param front.GetWxAuthUrlRequest) (targetUrl string, code int) {
	var (
		// 重定向地址
		redirectUri = config.GetConf().PayService.Host + common.FRONT_V1 + "/wx/getOpenId"
	)
	baseUrl := "https://open.weixin.qq.com/connect/oauth2/authorize"

	// 获取支付渠道的配置
	id, err := strconv.Atoi(param.PayChannelId)
	if err != nil {
		code = handErr(err)
		return
	}
	payChannel := paychannelmodel.PayChannel{Id: int64(id)}
	code = PayChannelGet(&payChannel)
	if code != 200 {
		return
	}
	//// 配置解析
	//wxConfig := paymentService.WxPay{}
	//err = json.Unmarshal([]byte(payChannel.ExtJson), &wxConfig)
	//if err != nil {
	//	code = handErr(err)
	//	return
	//}

	appid := payChannel.AppId
	redirectUri = url.QueryEscape(redirectUri)
	responseType := "code"
	scope := "snsapi_base"

	targetUrl = baseUrl + "?appid=" + appid + "&redirect_uri=" + redirectUri + "&response_type=" + responseType + "&scope=" + scope + "&state=" + param.PayChannelId + "#wechat_redirect"
	return
}

// // 通过code换取网页授权access_token，openid
func GetWxAuth(param front.GetWxAuthRequest) (rsp front.GetWxAuthResponse, code int) {

	// 获取支付渠道的配置
	id, err := strconv.Atoi(param.State)
	if err != nil {
		code = handErr(err)
		return
	}
	payChannel := paychannelmodel.PayChannel{Id: int64(id)}
	code = PayChannelGet(&payChannel)
	if code != 200 {
		return
	}

	//// 配置支付的解析
	wxConfig := make(map[string]interface{})
	err = json.Unmarshal([]byte(payChannel.ExtJson), &wxConfig)
	if err != nil {
		code = handErr(err)
		return
	}
	sk := wxConfig["secret"].(string)
	if sk == "" {
		code = errorcode.PayChannelConfigNotFound
		return
	}

	targetUrl := fmt.Sprintf("https://api.weixin.qq.com/sns/oauth2/access_token?appid=%s&secret=%s&code=%s&grant_type=authorization_code",
		payChannel.AppId,
		sk,
		param.Code,
	)

	header := map[string]string{
		"Content-Type": "application/json",
	}
	body := map[string]string{}
	response, err := httpclient.FastHttpGet(targetUrl, header, body, 0)
	if err != nil {
		code = handErr(err)
		return
	}
	utils.Log(nil, "获取微信授权信息", string(response), targetUrl)

	// 解析返回数据
	err = json.Unmarshal(response, &rsp)
	if err != nil {
		code = handErr(err)
		return
	}
	if rsp.Openid == "" {
		code = errorcode.WechatAuthFail
		return
	}
	code = handErr(err)
	return
}