predictor/internal/pkg/grib/util.go
2026-03-22 16:29:53 +09:00

20 lines
325 B
Go

package grib
import (
"fmt"
"hash/fnv"
"time"
)
func nearestRun(t time.Time) time.Time {
h := t.UTC().Hour() - t.UTC().Hour()%6
return time.Date(t.Year(), t.Month(), t.Day(), h, 0, 0, 0, time.UTC)
}
func encodeKey(a ...any) uint64 {
h := fnv.New64a()
for _, v := range a {
fmt.Fprint(h, v)
}
return h.Sum64()
}