package base

import (
	"fmt"
	"reflect"
	"sort"
	"strings"

	"github.com/liangdas/mqant/log"
)

func GetSignStr(send interface{}) string {
	m := StructToMapJson(send)
	str := []string{}
	for i := range m {
		if i == "sign" {
			continue
		}
		str = append(str, i)
	}
	sort.Strings(str)
	signStr := ""
	for i, v := range str {
		signStr += fmt.Sprintf("%v=%v", v, m[v])
		if i != len(str)-1 {
			signStr += "&"
		}
	}
	log.Debug("signStr:%s", signStr)
	return signStr
}

func StructToMapJson(obj interface{}) map[string]interface{} {
	t := reflect.TypeOf(obj)
	v := reflect.ValueOf(obj)
	if t.Kind() == reflect.Ptr {
		t = t.Elem()
		v = v.Elem()
	}
	var result = make(map[string]interface{})
	for i := 0; i < t.NumField(); i++ {
		if v.Field(i).Kind() == reflect.Ptr && v.Field(i).IsNil() {
			continue
		}
		tagName := t.Field(i).Tag.Get("json")
		if tagName != "" && tagName != "-" && !v.Field(i).IsZero() {
			data := v.Field(i).Interface()
			if v.Field(i).Kind() == reflect.Struct {
				data = GetSignStr(data)
			}
			name := strings.Split(tagName, ",")
			result[name[0]] = data
		}
	}

	return result
}