package mixrepoimpl

import (
	"context"
	"fmt"
	"strings"
	"time"
	v1 "voucher/api/v1"
	"voucher/internal/biz/mixrepos"
	"voucher/internal/conf"
	"voucher/internal/pkg/cmb"
	"voucher/internal/pkg/helper"
)

type CmbMixRepoImpl struct {
	bc *conf.Bootstrap
}

func NewCmbMixRepoImpl(bc *conf.Bootstrap) mixrepos.CmbMixRepo {
	return &CmbMixRepoImpl{bc: bc}
}

func (s *CmbMixRepoImpl) GetRequestData(_ context.Context, funcName, bizJsonStr string) (*v1.CmbRequest, error) {
	// 我们的sm2 公钥加密
	// 请求到我们这边 使用 我们的私钥解密
	encryptBody, err := cmb.Encrypt(s.bc.Cmb.Sm2Puk, bizJsonStr)
	if err != nil {
		return nil, err
	}

	date := time.Now().Format("20060102150405")

	reply := &v1.CmbRequest{
		Mid:         s.bc.Cmb.Mid,
		Aid:         s.bc.Cmb.Aid,
		Date:        date,
		Random:      string(cmb.RandomBytes(16)),
		KeyAlias:    s.bc.Cmb.KeyAlias,
		CmbKeyAlias: s.bc.Cmb.CmbKeyAlias,
		EncryptBody: encryptBody,
		Sign:        "",
	}

	kvRows := helper.SortStructFieldsByKey(reply)

	var strToBeSigned strings.Builder
	for _, kv := range kvRows {
		if kv.Key == "sign" {
			continue
		}
		if kv.Value == "" {
			continue
		}
		strToBeSigned.WriteString(fmt.Sprintf("%s=%s&", kv.Key, kv.Value))
	}

	str := fmt.Sprintf("%s?%s", funcName, strings.TrimRight(strToBeSigned.String(), "&"))

	sing, err := cmb.Sign(s.bc.Cmb.CmbSm2Pik, str)
	if err != nil {
		return nil, err
	}
	reply.Sign = sing

	return reply, nil
}

func (s *CmbMixRepoImpl) Request(ctx context.Context, funcName, bizJsonStr string) (*v1.CmbRequest, error) {
	data, err := s.GetRequestData(ctx, funcName, bizJsonStr)
	if err != nil {
		return nil, err
	}
	fmt.Print(data)

	return nil, nil
}