package transfer

import (
	"context"
	"encoding/json"
	"rs/rpc/transfer"
	"rs/untils/rsa"

	"github.com/jinzhu/copier"
	"github.com/zeromicro/go-zero/core/logx"
	"rs/cmd/api/internal/svc"
	"rs/cmd/api/internal/types"
)

type MarketLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// 荣数立减金发放
func NewMarketLogic(ctx context.Context, svcCtx *svc.ServiceContext) *MarketLogic {
	return &MarketLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *MarketLogic) Market(req *types.Req) (resp *types.Resp, err error) {
	var (
		reqData transfer.RsCouponGrantReq
		res     types.Resp
	)

	DecryptData, _ := l.Decrypt(req.VendorNo, req.Data)
	_ = copier.Copy(&reqData, &req)
	tagLen := len(DecryptData.VoucherTag)
	if tagLen < 6 {
		//如果没有解析出来，直接投递给荣数，让荣数自行处理转发
		result, _err := l.svcCtx.TransferRpc.RsCouponGrant(l.ctx, &reqData)
		if _err != nil {
			return nil, err
		}
		_ = copier.Copy(&res, &result)
	} else {
		prefix := DecryptData.VoucherTag[0:6]
		prefixData, err := l.svcCtx.ProductRedirectConf.FindOneByProductNoPrefix(l.ctx, prefix)
		if err != nil {
			return nil, err
		}
		if prefixData == nil {
			result, _err := l.svcCtx.TransferRpc.RsCouponGrant(l.ctx, &reqData)
			if _err != nil {
				return nil, _err
			}
			_ = copier.Copy(&res, &result)
		} else {
			result, _err := l.svcCtx.TransferRpc.ZltxRsMiXue(l.ctx, &reqData)
			if _err != nil {
				return nil, _err
			}
			_ = copier.Copy(&res, &result)
		}
	}
	return &res, nil
}

func (l *MarketLogic) Decrypt(vendorNo string, encryptData string) (types.DecryptReqData, error) {
	var (
		decryptData types.DecryptReqData
		deCrypt     []byte
	)
	merchantInfo, err := l.svcCtx.Merchant.FindOneByMerchantId(l.ctx, vendorNo)
	if err != nil {
		return decryptData, err
	}

	// 修改请求体
	switch merchantInfo.SignatureMethod {
	default:
		privateKeyPEM := `-----BEGIN RSA PRIVATE KEY-----  
` + merchantInfo.RsaPrivateKey.String + `  
-----END RSA PRIVATE KEY-----`
		deCrypt, err = rsa.Decrypt(privateKeyPEM, encryptData)
		if err != nil {
			return decryptData, err
		}
	}
	_ = json.Unmarshal(deCrypt, &decryptData)
	return decryptData, nil
}