tianyuan-api-server/apps/api/internal/logic/FLXG/flxg0v3blogic.go

package FLXG

import (
	"context"
	"encoding/hex"
	"tianyuan-api/apps/api/internal/common"
	"tianyuan-api/apps/api/internal/validator"
	"tianyuan-api/apps/api/internal/westmodel"
	"tianyuan-api/pkg/crypto"
	"tianyuan-api/pkg/errs"

	"tianyuan-api/apps/api/internal/svc"
	"tianyuan-api/apps/api/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type FLXG0V3BLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewFLXG0V3BLogic(ctx context.Context, svcCtx *svc.ServiceContext) *FLXG0V3BLogic {
	return &FLXG0V3BLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *FLXG0V3BLogic) FLXG0V3B(req *types.Request) (resp string, err *errs.AppError) {
	var status string
	var charges bool
	var remark = ""
	secretKey, ok := l.ctx.Value("secretKey").(string)
	if !ok {
		return "", errs.ErrSystem
	}
	transactionID, ok := l.ctx.Value("transactionID").(string)
	if !ok {
		return "", errs.ErrSystem
	}
	userId, userIdOk := l.ctx.Value("userId").(int64)
	if !userIdOk {
		return "", errs.ErrSystem
	}
	productCode, productCodeOk := l.ctx.Value("productCode").(string)
	if !productCodeOk || productCode == "" {
		return "", errs.ErrSystem
	}

	defer func() {
		if err != nil {
			status = "failed"
			charges = false
		} else {
			status = "success"
			charges = true
		}
		sendApiRequestMessageErr := l.svcCtx.ApiRequestMqsService.SendApiRequestMessage(l.ctx, transactionID, userId, productCode, status, charges, remark)
		if sendApiRequestMessageErr != nil {
			logx.Errorf("发送 API 请求消息失败: %v", err)
		}
	}()
	// 1、解密
	key, decodeErr := hex.DecodeString(secretKey)
	if decodeErr != nil {
		return "", errs.ErrSystem
	}
	decryptData, aesDecryptErr := crypto.AesDecrypt(req.Data, key)
	if aesDecryptErr != nil || len(decryptData) == 0 {
		return "", errs.ErrParamDecryption
	}

	// 2、校验
	var data validator.FLXG0V3BRequest
	if validatorErr := validator.ValidateAndParse(decryptData, &data); validatorErr != nil {
		return "", errs.ErrParamValidation
	}

	// 3、西部加密
	westConfig := l.svcCtx.Config.WestConfig
	encryptedFields, encryptStructFieldsErr := common.EncryptStructFields(data, westConfig.Key)
	if encryptStructFieldsErr != nil {
		logx.Errorf("西部加密错误：%v", encryptStructFieldsErr)
		return "", errs.ErrSystem
	}

	// 4、发送请求到西部
	logx.Infof("交易号：%s", transactionID)
	apiRequest := common.MapStructToAPIRequest(encryptedFields, westmodel.FLXG0V3BFieldMapping, "data")

	westResp, callAPIErr := l.svcCtx.WestDexService.CallAPI("G34BJ03", apiRequest, l.svcCtx.Config.WestConfig.SecretId)
	if callAPIErr != nil {
		if callAPIErr.Code == errs.ErrDataSource.Code {
			encryptData, aesEncrypt := crypto.AesEncrypt(westResp, key)
			if aesEncrypt != nil {
				return "", errs.ErrSystem
			}
			return encryptData, callAPIErr
		}
		return "", callAPIErr
	}

	encryptData, aesEncrypt := crypto.AesEncrypt(westResp, key)
	if aesEncrypt != nil {
		return "", errs.ErrSystem
	}
	return encryptData, nil
}