mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-22 18:40:25 +00:00
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package ddp
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io"
|
|
"strconv"
|
|
"time"
|
|
)
|
|
|
|
// utcOffset in milliseconds for the current local time (east of UTC).
|
|
var utcOffset int64
|
|
|
|
func init() {
|
|
_, offsetSeconds := time.Now().Zone()
|
|
utcOffset = int64(offsetSeconds * 1000)
|
|
}
|
|
|
|
// Time is an alias for time.Time with custom json marshalling implementations to support ejson.
|
|
type Time struct {
|
|
time.Time
|
|
}
|
|
|
|
// UnixMilli creates a new Time from the given unix millis but in UTC (as opposed to time.UnixMilli which returns
|
|
// time in the local time zone). This supports the proper loading of times from EJSON $date objects.
|
|
func UnixMilli(i int64) Time {
|
|
return Time{Time: time.UnixMilli(i - utcOffset)}
|
|
}
|
|
|
|
func (t *Time) UnmarshalJSON(b []byte) error {
|
|
var data map[string]float64
|
|
err := json.Unmarshal(b, &data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
val, ok := data["$date"]
|
|
if !ok {
|
|
return io.ErrUnexpectedEOF
|
|
}
|
|
// The time MUST be UTC but time.UnixMilli uses local time.
|
|
// We see what time it is in local time and calculate the offset to UTC
|
|
*t = UnixMilli(int64(val))
|
|
|
|
return nil
|
|
}
|
|
|
|
func (t Time) MarshalJSON() ([]byte, error) {
|
|
return []byte("{\"$date\":" + strconv.FormatInt(t.UnixMilli(), 10) + "}"), nil
|
|
}
|
|
|