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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2018 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package timeutil
import (
"fmt"
"time"
"github.com/snapcore/snapd/i18n"
)
// start-of-day
func sod(t time.Time) time.Time {
y, m, d := t.Date()
return time.Date(y, m, d, 0, 0, 0, 0, t.Location())
}
// Human turns the time into a relative expression of time meant for human
// consumption.
// Human(t) --> "today at 07:47"
func Human(then time.Time) string {
return humanTimeSince(then.Local(), timeNow().Local(), 60)
}
func delta(then, now time.Time) int {
if then.After(now) {
return -delta(now, then)
}
then = sod(then)
now = sod(now)
n := int(then.Sub(now).Hours() / 24)
now = now.AddDate(0, 0, n)
for then.Before(now) {
then = then.AddDate(0, 0, 1)
n--
}
return n
}
func humanTimeSince(then, now time.Time, cutoffDays int) string {
d := delta(then, now)
switch {
case d < -1 && d >= -cutoffDays:
// TRANSLATORS: %d will be at least 2; the singular is only included to help gettext
return fmt.Sprintf(then.Format(i18n.NG("%d day ago, at 15:04 MST", "%d days ago, at 15:04 MST", -d)), -d)
case d == -1:
return then.Format(i18n.G("yesterday at 15:04 MST"))
case d == 0:
return then.Format(i18n.G("today at 15:04 MST"))
case d == 1:
return then.Format(i18n.G("tomorrow at 15:04 MST"))
case d > 1 && d <= cutoffDays:
// TRANSLATORS: %d will be at least 2; the singular is only included to help gettext
return fmt.Sprintf(then.Format(i18n.NG("in %d day, at 15:04 MST", "in %d days, at 15:04 MST", d)), d)
default:
return then.Format("2006-01-02")
}
}
// MockTimeNow mocks the time.Now() calls used in the timeutil package.
func MockTimeNow(f func() time.Time) (restorer func()) {
origTimeNow := timeNow
timeNow = f
return func() { timeNow = origTimeNow }
}
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