// Package json_tool ...
//
// Description : json_tool ...
//
// Author : go_developer@163.com<张德满>
//
// Date : 2022-01-09 10:48 PM
package json_tool

import (
	"github.com/pkg/errors"
	"github.com/tidwall/gjson"
)

// GetJSONDataStruct 获取JSON数据的结构
//
// Author : go_developer@163.com<张德满>
//
// Date : 10:53 PM 2022/1/9
func GetJSONDataStruct(data string) ([]string, error) {
	if !gjson.Valid(data) {
		return make([]string, 0), errors.New("JSON format is invalid")
	}
	pathList := make([]string, 0)
	r := gjson.Parse(data)
	r.ForEach(func(key, value gjson.Result) bool {
		if value.IsObject() {
			list, _ := GetJSONDataStruct(value.String())
			for _, k := range list {
				pathList = append(pathList, key.String()+"."+k)
			}
		}

		if value.IsArray() {
			dataList := value.Array()
			if len(dataList) > 0 {
				if !dataList[0].IsObject() && !dataList[0].IsArray() {
					pathList = append(pathList, key.String())
				} else {
					list, _ := GetJSONDataStruct(dataList[0].String())
					for _, k := range list {
						pathList = append(pathList, key.String()+".[]."+k)
					}
				}
			} else {
				pathList = append(pathList, key.String())
			}
		}

		if !value.IsObject() && !value.IsArray() {
			pathList = append(pathList, key.String())
		}

		return true
	})
	return pathList, nil
}