package haiyuapi

import (
	"encoding/json"

	"tyapi-server/internal/shared/crypto"
)

// EncryptParams 将业务参数序列化为 JSON 后，使用 Access Key（16进制）AES-128-CBC 加密并 Base64 编码
func EncryptParams(params map[string]interface{}, accessKey string) (string, error) {
	plainJSON, err := json.Marshal(params)
	if err != nil {
		return "", err
	}
	return crypto.AesEncrypt(plainJSON, accessKey)
}

// DecryptData 解密响应 data 字段（IV+密文 Base64）；空字符串视为无数据，返回 {}
func DecryptData(encrypted, accessKey string) ([]byte, error) {
	if encrypted == "" {
		return []byte("{}"), nil
	}
	return crypto.AesDecrypt(encrypted, accessKey)
}