87 lines
1.9 KiB
Go
87 lines
1.9 KiB
Go
// Copyright (C) 2025 wangyusong
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package time
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import (
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"context"
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"math/rand"
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"time"
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_ "time/tzdata"
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"github.com/pkg/errors"
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runtimeutil "github.com/glidea/zenfeed/pkg/util/runtime"
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)
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const (
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Day = 24 * time.Hour
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Week = 7 * Day
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Month = 30 * Day
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Year = 365 * Day
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)
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// SetLocation sets the location for the current application.
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func SetLocation(name string) error {
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if name == "" {
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return nil
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}
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loc, err := time.LoadLocation(name)
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if err != nil {
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return errors.Wrap(err, "load location")
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}
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time.Local = loc
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return nil
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}
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func InRange(t time.Time, start, end time.Time) bool {
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return t.After(start) && t.Before(end)
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}
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func Format(t time.Time) string {
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return t.Format(time.RFC3339)
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}
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func Parse(s string) (time.Time, error) {
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return time.Parse(time.RFC3339, s)
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}
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func MustParse(s string) time.Time {
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return runtimeutil.Must1(Parse(s))
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}
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func Tick(ctx context.Context, d time.Duration, f func() error) error {
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ticker := time.NewTicker(d)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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if err := f(); err != nil {
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return err
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}
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case <-ctx.Done():
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return nil
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}
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}
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}
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func Random(max time.Duration) time.Duration {
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return time.Duration(rand.Int63n(int64(max)))
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}
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