package utils

import (
	jsoniter "github.com/json-iterator/go"
	"github.com/mitchellh/mapstructure"
)

// 定义JSON操作
var (
	json              = jsoniter.ConfigCompatibleWithStandardLibrary
	JSONMarshal       = json.Marshal
	JSONUnmarshal     = json.Unmarshal
	JSONMarshalIndent = json.MarshalIndent
	JSONNewDecoder    = json.NewDecoder
	JSONNewEncoder    = json.NewEncoder
)

// JSONMarshalToString JSON编码为字符串
func JSONMarshalToString(v interface{}) string {
	s, err := jsoniter.MarshalToString(v)
	if err != nil {
		return ""
	}
	return s
}

func StructToMap(in interface{}) (map[string]interface{}, error) {
	m := make(map[string]interface{})
	jsonBytes, err := json.Marshal(in)
	if err != nil {
		return nil, err
	}
	err = json.Unmarshal(jsonBytes, &m)
	if err != nil {
		return nil, err
	}
	return m, nil
}

func MapToStruct(inMap map[string]interface{}, out interface{}) error {
	err := mapstructure.Decode(inMap, out)
	return err
}