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// Copyright (c) 2023 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package jsontime
import (
"encoding/json"
"strconv"
"time"
)
func parseTimeString(data []byte, unixConv func(int64) time.Time, into *time.Time) error {
var strVal string
err := json.Unmarshal(data, &strVal)
if err != nil {
return err
}
val, err := strconv.ParseInt(strVal, 10, 64)
if err != nil {
return err
}
if val == 0 {
*into = time.Time{}
} else {
*into = unixConv(val)
}
return nil
}
type UnixMilliString struct {
time.Time
}
func (um UnixMilliString) MarshalJSON() ([]byte, error) {
if um.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(um.UnixMilli(), 10))
}
func (um *UnixMilliString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, time.UnixMilli, &um.Time)
}
type UnixMicroString struct {
time.Time
}
func (um UnixMicroString) MarshalJSON() ([]byte, error) {
if um.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(um.UnixMicro(), 10))
}
func (um *UnixMicroString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, time.UnixMicro, &um.Time)
}
type UnixNanoString struct {
time.Time
}
func (um UnixNanoString) MarshalJSON() ([]byte, error) {
if um.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(um.UnixNano(), 10))
}
func (um *UnixNanoString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, func(i int64) time.Time {
return time.Unix(0, i)
}, &um.Time)
}
type UnixString struct {
time.Time
}
func (u UnixString) MarshalJSON() ([]byte, error) {
if u.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(u.Unix(), 10))
}
func (u *UnixString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, func(i int64) time.Time {
return time.Unix(i, 0)
}, &u.Time)
}
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