package utility

import (
	"encoding/json"
	"regexp"
	"strings"
	"unicode"
)

func InterfaceToJsonString(obj interface{}) string {
	jsonBytes, err := json.Marshal(obj)
	if err == nil {
		return string(jsonBytes)
	}

	return ""
}

func IsMobile(mobile string) bool {
	mobile = strings.Replace(mobile, " ", "", -1)
	if ok := CheckPhoneIsOK(mobile); !ok {
		return false
	}

	result, _ := regexp.MatchString(`^(1[3|4|5|6|7|8|9][0-9]\d{4,8})$`, mobile)
	return result
}

func CheckPhoneIsOK(phone string) bool {
	if len(phone) != 11 {
		return false
	}

	isOK := true
	for _, r := range phone {
		if !unicode.IsDigit(r) {
			isOK = false
			break
		}
	}

	return isOK
}