package intelligence_finance_v1

import "fmt"

// SDKError SDK通用错误类型
type SDKError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
	Err     error  `json:"-"`
}

// Error 实现error接口
func (e *SDKError) Error() string {
	if e.Err != nil {
		return fmt.Sprintf("code=%d, message=%s, err=%v", e.Code, e.Message, e.Err)
	}
	return fmt.Sprintf("code=%d, message=%s", e.Code, e.Message)
}

// Unwrap 返回包装的错误
func (e *SDKError) Unwrap() error {
	return e.Err
}

// NewSDKError 创建SDK错误
func NewSDKError(code int, message string, err error) *SDKError {
	return &SDKError{
		Code:    code,
		Message: message,
		Err:     err,
	}
}

// 预定义错误码
const (
	ErrCodeSuccess          = 0
	ErrCodeUnknown          = -1
	ErrCodeInvalidParam     = 1001
	ErrCodeSignatureFailed  = 1002
	ErrCodeNetworkError     = 1003
	ErrCodeRequestTimeout   = 1004
	ErrCodeServerError      = 2001
	ErrCodeUnauthorized     = 2002
	ErrCodeNotFound         = 2003
	ErrCodeRateLimit        = 2004
)

// 预定义错误
var (
	ErrUnknown         = NewSDKError(ErrCodeUnknown, "未知错误", nil)
	ErrInvalidParam    = NewSDKError(ErrCodeInvalidParam, "参数无效", nil)
	ErrSignatureFailed = NewSDKError(ErrCodeSignatureFailed, "签名失败", nil)
	ErrNetworkError    = NewSDKError(ErrCodeNetworkError, "网络错误", nil)
	ErrRequestTimeout  = NewSDKError(ErrCodeRequestTimeout, "请求超时", nil)
	ErrServerError     = NewSDKError(ErrCodeServerError, "服务端错误", nil)
	ErrUnauthorized    = NewSDKError(ErrCodeUnauthorized, "未授权", nil)
	ErrNotFound        = NewSDKError(ErrCodeNotFound, "未找到", nil)
	ErrRateLimit       = NewSDKError(ErrCodeRateLimit, "请求频率限制", nil)
)