kube-arangodb/pkg/util/times.go

//
// DISCLAIMER
//
// Copyright 2016-2023 ArangoDB GmbH, Cologne, Germany
//
// 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.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//

package util

import (
	"math"
	"time"

	meta "k8s.io/apimachinery/pkg/apis/meta/v1"
)

const TimeLayout = time.RFC3339

// TimeCompareEqual compares two times, allowing an error of 1s
func TimeCompareEqual(a, b meta.Time) bool {
	return math.Abs(a.Time.Sub(b.Time).Seconds()) <= 1
}

// TimeCompareEqualPointer compares two times, allowing an error of 1s
// Returns true if both pointers are nil
func TimeCompareEqualPointer(a, b *meta.Time) bool {
	if a == nil && b == nil {
		return true
	} else if a == nil || b == nil {
		return false
	} else if a == b {
		return true
	}

	return TimeCompareEqual(*a, *b)
}

func TimeAgencyLayouts() []string {
	return []string{
		TimeLayout,
	}
}

func ParseAgencyTime(s string) (time.Time, bool) {
	t, id := ParseTime(s, TimeAgencyLayouts()...)

	return t, id != -1
}

func ParseTime(s string, layouts ...string) (time.Time, int) {
	for id, layout := range layouts {
		if t, err := time.Parse(layout, s); err == nil {
			return t, id
		}
	}

	return time.Time{}, -1
}