package utils

import (
	"encoding/json"
	"gd_adm_data/consts"
	"time"
)

func GetYearByVin10(vin10 string) int {
	nowYear := time.Now().Year()
	if v, ok := consts.YearMap[vin10]; ok {
		if v > nowYear {
			year := v - 30
			if year < 2001 {
				return 0
			}
			return year
		} else if v == nowYear {
			return nowYear
		} else {
			return getLastYear(v, nowYear)
		}
	} else {
		return nowYear
	}
}

func getLastYear(year, nowYear int) int {
	lastYear := year + 30
	if lastYear > nowYear {
		return year
	} else if lastYear == nowYear {
		return nowYear
	} else {
		return getLastYear(lastYear, nowYear)
	}
}

func MarshalJsonString(args ...interface{}) (result string) {
	if len(args) > 0 {
		if r, err := json.Marshal(args); err == nil {
			result = string(r)
		}
	}

	return
}