// Copyright 2019 getensh.com. All rights reserved.
// Use of this source code is governed by getensh.com.

package utils

import (
	"strconv"
	"strings"
	"time"
)

const LastCompulsoryScrapTo = "2099-12-31 00:00:00"

func compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate string, years int) string {
	initialDate := ""
	if initialRegistrationDate != "" {
		initialDate = initialRegistrationDate
	} else {
		initialDate = insuranceFirstDate
	}

	if initialDate == ""{
		return ""
	}
	compulsoryScrapToTime, _ := time.Parse(DayLayout, initialDate[:DataLen])
	compulsoryScrapTo := compulsoryScrapToTime.AddDate(years, 0, 0).String()[:DataLen] + " 00:00:00"
	return compulsoryScrapTo
}

func getMapValueString(key string,reqMap map[string]interface{}) (string,bool){
	if v1, ok := reqMap[key]; ok {
		switch v1.(type) {
		case string:
			return v1.(string),true
		}
	}else{
		return "",false
	}
	return "",true
}

func getMapValueInt(key string,reqMap map[string]interface{}) int {
	if v1, ok := reqMap[key]; ok {
		switch v1.(type) {
		case string:
			v ,_ := strconv.Atoi(v1.(string))
			return v
		case int:
			return v1.(int)
		case int16:
			return int(v1.(int16))
		case int32:
			return int(v1.(int32))
		case int64:
			return int(v1.(int64))
		case float64:
			return int(v1.(float64))
		case float32:
			return int(v1.(float32))
		}
	}

	return 0
}

// 车辆报废日期计算
func CalcCompulsoryScrapTo(reqMap map[string]interface{}) {
	compulsoryScrapTo,isExist := getMapValueString("compulsory_scrap_to",reqMap)
	if !isExist{
		return
	}
	vehicleType,_ := getMapValueString("vehicle_type",reqMap)
	initialRegistrationDate,_ := getMapValueString("initial_registration_date",reqMap)
	insuranceFirstDate,_ := getMapValueString("insurance_first_date",reqMap)
	useProperty,_ := getMapValueString("use_property",reqMap)
	approvedNumber := getMapValueInt("approved_number",reqMap)

	if compulsoryScrapTo != "" && compulsoryScrapTo != LastCompulsoryScrapTo {
		return
	}

	if vehicleType != "" &&
		(initialRegistrationDate != "" ||
			insuranceFirstDate != "") {
		switch {
		case vehicleType >= "H41" && vehicleType <= "H46":
			compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 8)
		case vehicleType >= "H11" && vehicleType <= "H39":
			compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 15)
		case vehicleType >= "Q11" && vehicleType <= "Q32":
			compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 15)
		case vehicleType == "T11" || vehicleType == "X99":
			compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 15)
		}

		if useProperty != "" {
			if strings.HasPrefix(vehicleType, "K") {
				switch {
				case strings.Contains("DGT", useProperty):
					if approvedNumber != 0 {
						if approvedNumber >= 20 {
							compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 12)
						} else {
							compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 8)
						}
					}
				case strings.Contains("BCFGHKN", useProperty):
					compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 15)
				case strings.Contains("A", useProperty):
					if approvedNumber != 0 {
						if approvedNumber > 9 {
							compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 20)
						}
					}
				case strings.Contains("E", useProperty):
					compulsoryScrapTo = compulsoryScrapToAddYear(initialRegistrationDate,insuranceFirstDate, 20)
				}
			}
		}
	}

	if compulsoryScrapTo == ""{
		compulsoryScrapTo = LastCompulsoryScrapTo
	}
	reqMap["compulsory_scrap_to"] = compulsoryScrapTo
}