package util

import (
	"fmt"
	"time"
)

const (
	LocationName = "Asia/Shanghai"
	LayoutTime   = "2006-01-02 15:04:05"
	Layout       = "2006-01-02"
)

// TimeParseLocalUnix 获取当天零点的时间戳
// eg 2023-02-22 => 1676995200
func TimeParseLocalUnix(DayTime string) int64 {
	value := DayTime
	if len(DayTime) <= 11 {
		value = fmt.Sprintf("%s 00:00:00", DayTime)
	}

	loc, _ := time.LoadLocation("Local")
	theTime, _ := time.ParseInLocation(LayoutTime, value, loc)
	return theTime.Unix()
}

// ConvertParseLocalUnix 字符串转换当天时间戳
// eg 15:04:05 => 1676998245
func ConvertParseLocalUnix(timeParse string) (int64, error) {
	loc, err := time.LoadLocation("Local")
	if err != nil {
		return 0, err
	}
	value := fmt.Sprintf("%s %s", time.Now().Format(Layout), timeParse)
	theTime, err := time.ParseInLocation(LayoutTime, value, loc)
	if err != nil {
		return 0, err
	}
	return theTime.Unix(), nil
}

// GetMonthRemainDay 获取当前月还剩几天
func GetMonthRemainDay() int {
	now := time.Now()
	lastDayOfMonth := time.Date(now.Year(), now.Month()+1, 0, 23, 59, 59, 999999999, now.Location())
	return int(lastDayOfMonth.Sub(now).Hours()/24) + 1
}