gocommon/pkg/common/time.go

package common

import (
	"time"
)

const (
	zeroDateStr   = "0000-00-00 00:00:00"
	FromatTime_V1 = "2006-01-02 15:04:05"
	FromatTime_V2 = "2006-01-02"
	FromatTime_V3 = "15:04:05"
	FromatTime_V4 = "2006-01"
)

// 将时间转换为时间搓
// 时间搓0为：1970年1月1日0时0分0秒，业务中只有数据库为0000-00-00 00:00:00，是一个绝对值很大的负数，小于0则直接返回0就可以。
func Time2Second(_time time.Time) int64 {
	sec := _time.Unix()
	if sec < 0 {
		return 0
	}
	return sec
}

// 转换成标准格式的时间
func Time2StdString(_time time.Time) string {
	if TimeIsZero(_time) {
		return zeroDateStr
	}
	return _time.Format(FromatTime_V1)
}

// 获取昨天日期
func GetTimeYesterday() time.Time {
	return time.Now().AddDate(0, 0, -1)
}

// 将s转换成时间
func Second2Time(timestamp int64) time.Time {
	return time.Unix(timestamp, 0)
}

// 获取当前的s
func GetCurrentSeconds() int64 {
	return time.Now().Unix()
}

// orm返回的时间体，时间搓是否为0，time直接判断isZero是不对的，需要转换成utc时区
func TimeIsZero(t time.Time) bool {
	t = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second(), t.Nanosecond(), time.UTC)
	return t.IsZero()
}

// 获取当前时间开始的时间点，比如 2020-1-2 11:01:00 ——> 2020-1-2 00:00:00
func GetTimeStart(_time time.Time) time.Time {
	year, month, day := _time.Date()
	return time.Date(year, month, day, 0, 0, 0, 0, time.Local)
}

func StringStd2Time(time_ string) time.Time {
	res, err := time.ParseInLocation(FromatTime_V1, time_, time.Local)
	if err != nil {
		return _zero // 生成个默认的，降级
	}
	return res
}

func GetTomorrow(time_ time.Time) time.Time {
	year, month, day := time_.Date()
	data := time.Date(year, month, day+1, 0, 0, 0, 0, time.Local)
	return data
}

func GetYesterday(time_ time.Time) time.Time {
	year, month, day := time_.Date()
	data := time.Date(year, month, day-1, 0, 0, 0, 0, time.Local)
	return data
}

func NewTimeWithYearAndMonthAndDay(year int, month uint8, day int) time.Time {
	return time.Date(year, time.Month(month), day, 0, 0, 0, 0, time.Local)
}