package ymt_v3_api

import "fmt"

// APIError 表示 API 返回的错误信息。
type APIError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
	Reason  string `json:"reason,omitempty"`
}

func (e *APIError) Error() string {
	if e.Reason != "" {
		return fmt.Sprintf("API error [%d]: %s (reason: %s)", e.Code, e.Message, e.Reason)
	}
	return fmt.Sprintf("API error [%d]: %s", e.Code, e.Message)
}

// 公共错误码常量
const (
	ErrCodeSystemError          = 500
	ErrCodeInvalidPayload       = 400
	ErrCodeMissingParam         = 400
	ErrCodeInvalidTimestamp     = 400
	ErrCodeDecryptFailed        = 400
	ErrCodeAppNotFound          = 401
	ErrCodeInvalidSignature     = 401
	ErrCodeExpiredTimestamp     = 401
	ErrCodeDuplicateRequest     = 429
	ErrCodeActivityNotAuth      = 401
	ErrCodeMerchantNotExist     = 401
	ErrCodeMerchantNotAuth      = 401
	ErrCodeMerchantAppIncomplete = 401
	ErrCodeMerchantAppNotAuth   = 401
	ErrCodeActivityExpire       = 403
	ErrCodeActivityOutOfStock   = 403
	ErrCodeActivityNotExist     = 404
	ErrCodeMerchantOrderNotExist = 404
	ErrCodeKeyNotExist          = 404
	ErrCodeParamFail            = 400
	ErrCodeParamDecryptFail     = 400
)