lessgo/types/time.go at master · lessos/lessgo · GitHub

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// Copyright 2013-2016 lessgo Author, All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package types

import (
	"strconv"
	"time"
)

type MetaTime int64

func MetaTimeNow() MetaTime {
	return MetaTime(time.Now().UnixNano() / 1e6)
}

func MetaTimeSet(t time.Time) MetaTime {
	return MetaTime(t.UnixNano() / 1e6)
}

func (mt MetaTime) AddMillisecond(td int64) MetaTime {
	return MetaTime(int64(mt) + td)
}

func (mt MetaTime) Add(ts string) MetaTime {
	td, _ := time.ParseDuration(ts)
	return MetaTimeSet(mt.Time().Add(td))
}

func (mt MetaTime) Format(fm string) string {

	if fm == "rfc3339" {
		fm = time.RFC3339
	}

	return mt.Time().Local().Format(fm)
}

func (mt MetaTime) Time() time.Time {
	return time.Unix(int64(mt)/1e3, (int64(mt)%1e3)*1e6)
}

func (it *MetaTime) UnmarshalJSON(bs []byte) error {

	if i64, err := strconv.ParseInt(string(bs), 10, 64); err == nil {
		*it = MetaTime(timeUpgrade(i64))
	}

	return nil
}

func timeUpgrade(tn int64) int64 {
	if tn < 20000101000000111 {
		return tn
	}
	mtu := uint64(tn)
	return time.Date(int(mtu/1e13), time.Month((mtu%1e13)/1e11), int((mtu%1e11)/1e9),
		int((mtu%1e9)/1e7), int((mtu%1e7)/1e5), int((mtu%1e5)/1e3),
		int(mtu%1e3)*1e6, time.UTC).UnixNano() / 1e6
}

/**
type MetaTime uint64

func MetaTimeNow() MetaTime {
	return MetaTimeSet(time.Now().UTC())
}

func MetaTimeSet(t time.Time) MetaTime {
	return MetaTime(uint64(t.Year())*1e13 + uint64(t.Month())*1e11 + uint64(t.Day())*1e9 +
		uint64(t.Hour()*1e7+t.Minute()*1e5+t.Second()*1e3) +
		uint64(t.Nanosecond()/1e6))
}

func (mt MetaTime) AddMillisecond(td int64) MetaTime {
	return MetaTimeSet(mt.Time().Add(time.Duration(td * 1e6)))
}

func (mt MetaTime) Add(ts string) MetaTime {
	td, _ := time.ParseDuration(ts)
	return MetaTimeSet(mt.Time().Add(td))
}

func (mt MetaTime) Format(fm string) string {

	if fm == "rfc3339" {
		fm = time.RFC3339
	}

	return mt.Time().Local().Format(fm)
}

func (mt MetaTime) Time() time.Time {

	mtu := uint64(mt)

	return time.Date(int(mtu/1e13), time.Month((mtu%1e13)/1e11), int((mtu%1e11)/1e9),
		int((mtu%1e9)/1e7), int((mtu%1e7)/1e5), int((mtu%1e5)/1e3),
		int(mtu%1e3)*1e6, time.UTC)
}
*/