package Base

import (
		"encoding/json"
		"fmt"
)

// 结果对象
type IReturnAble interface {
		State() int64
		Message() string
		Value() interface{}
		ToJson() string
		ToMap() DataMap
		Error() error
		Transform(interface{}, string) error
}

type ReturnAble struct {
		Code   int64       `json:"code" Tr:"code"`
		Msg    string      `json:"msg" Tr:"msg"`
		Data   interface{} `json:"data" Tr:"data"`
		ErrNo  int64       `json:"errNo" Tr:"errno"`
		ErrMsg string      `json:"errMsg" Tr:"errMsg"`
}

const SuccessCode = 200

func NewReturnAble(code int64, msg string, data interface{}, errNo int64, errMsg string) IReturnAble {
		return &ReturnAble{
				Code:   code,
				Msg:    msg,
				Data:   data,
				ErrNo:  errNo,
				ErrMsg: errMsg,
		}
}

func NewSuccessAble(data interface{}, msg string, codeArg ...int64) IReturnAble {
		var code int64 = SuccessCode
		if len(codeArg) > 0 {
				code = codeArg[0]
		}
		return NewReturnAble(code, msg, data, 0, "")
}

func NewFailAbel(errMsg string, errNo int64, res ...interface{}) IReturnAble {
		var data interface{}
		if len(res) > 0 {
				data = res[0]
		}
		return NewReturnAble(0, "", data, errNo, errMsg)
}

func (r *ReturnAble) State() int64 {
		return r.Code
}

func (r *ReturnAble) Message() string {
		return r.Msg
}

func (r *ReturnAble) Value() interface{} {
		return r.Data
}

func (r *ReturnAble) ToJson() string {
		var (
				data []byte
				err  error
		)
		if data, err = json.Marshal(r); err != nil {
				GetLoggerInstance().Error(err)
				return ""
		}
		return string(data)
}

func (r *ReturnAble) ToMap() DataMap {
		var (
				data DataMap
				err  error
		)
		if data, err = TransformStruct2Map(r); err != nil {
				GetLoggerInstance().Error(err)
				return nil
		}
		return data
}

func (r *ReturnAble) Error() error {
		if r.ErrNo != 0 && r.ErrMsg != "" {
				return ServiceError(fmt.Sprintf("code:%d,msg:%s", r.ErrNo, r.ErrMsg))
		}
		return nil
}

// 对应结果体装载
func (r *ReturnAble) Transform(v interface{}, scope string) error {
		if scope == "" || scope == "*" {

		}
		if scope == "data" || scope == "value" {

		}
		if scope == "error" || scope == "err" {

		}
		return nil
}