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v/time/time.v
2019-06-28 15:04:41 +02:00

281 lines
5.1 KiB
Go

// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module time
import rand
#include <time.h>
struct Time {
pub:
year int
month int
day int
hour int
minute int
second int
uni int // TODO it's safe to use "unix" now
}
fn C.localtime(int) *C.tm
fn remove_me_when_c_bug_is_fixed() { // TODO
}
struct C.tm {
tm_year int
tm_mon int
tm_mday int
tm_hour int
tm_min int
tm_sec int
}
pub fn now() Time {
t := C.time(0)
mut now := &C.tm{!}
now = C.localtime(&t)
return convert_ctime(now)
}
pub fn random() Time {
return Time {
year: rand.next(2) + 201
month: rand.next(12) + 1
day: rand.next(30) + 1
hour: rand.next(24)
minute: rand.next(60)
second: rand.next(60)
}
}
pub fn unix(u int) Time {
mut t := &C.tm{!}
t = C.localtime(&u)
return convert_ctime(t)
}
pub fn convert_ctime(t tm) Time {
return Time {
year: t.tm_year + 1900
month: t.tm_mon + 1
day: t.tm_mday
hour: t.tm_hour
minute: t.tm_min
second: t.tm_sec
}
// uni = uni;
}
fn (t Time) format_ss() string {
return '${t.year}-${t.month:02d}-${t.day:02d} ${t.hour:02d}:${t.minute:02d}:${t.second:02d}'
}
pub fn (t Time) format() string {
return '${t.year}-${t.month:02d}-${t.day:02d} ${t.hour:02d}:${t.minute:02d}'
}
const (
Months = 'JanFebMarAprMayJunJulAugSepOctNovDec'
Days = 'MonTueWedThuFriSatSun'
)
pub fn (t Time) smonth() string {
i := t.month - 1
return Months.substr(i * 3, (i + 1) * 3)
}
// 21:04
pub fn (t Time) hhmm() string {
return '${t.hour:02d}:${t.minute:02d}'
}
/*
fn (t Time) hhmm_tmp() string {
return '${t.hour:02d}:${t.minute:02d}'
}
*/
// 9:04pm
pub fn (t Time) hhmm12() string {
mut am := 'am'
mut hour := t.hour
if t.hour > 11 {
am = 'pm'
}
if t.hour > 12 {
hour = hour - 12
}
if t.hour == 0 {
hour = 12
}
return '$hour:${t.minute:02d} $am'
}
// 21:04:03
fn (t Time) hhmmss() string {
return '${t.hour:02d}:${t.minute:02d}:${t.second:02d}'
}
// 2012-01-05
fn (t Time) ymmdd() string {
return '${t.year}-${t.month:02d}-${t.day:02d}'
}
// Jul 3
fn (t Time) md() string {
// jl := t.smonth()
s := '${t.smonth()} $t.day'
return s
}
pub fn (t Time) clean() string {
nowe := time.now()
// if amtime {
// hm = t.Format("3:04 pm")
// }
// Today
if t.month == nowe.month && t.year == nowe.year && t.day == nowe.day {
return t.hhmm()
}
// This week
// if time.Since(t) < 24*7*time.Hour {
// return t.Weekday().String()[:3] + " " + hm
// }
// This year
if t.year == nowe.year {
return '${t.smonth()} ${t.day} ${t.hhmm()}'
}
return t.format()
// return fmt.Sprintf("%4d/%02d/%02d", t.Year(), t.Month(), t.Day()) + " " + hm
}
fn (t Time) clean12() string {
nowe := time.now()
// if amtime {
// hm = t.Format("3:04 pm")
// }
// Today
if t.month == nowe.month && t.year == nowe.year && t.day == nowe.day {
return t.hhmm12()
}
// This week
// if time.Since(t) < 24*7*time.Hour {
// return t.Weekday().String()[:3] + " " + hm
// }
// This year
if t.year == nowe.year {
return '${t.smonth()} ${t.day} ${t.hhmm12()}'
}
return t.format()
// return fmt.Sprintf("%4d/%02d/%02d", t.Year(), t.Month(), t.Day()) + " " + hm
}
/*
// in ms
fn ticks() double {
return 0
}
*/
// `parse` parses time in the following format: "2018-01-27 12:48:34"
pub fn parse(s string) Time {
// println('parse="$s"')
pos := s.index(' ')
if pos <= 0 {
println('bad time format')
return now()
}
symd := s.left(pos)
ymd := symd.split('-')
if ymd.len != 3 {
println('bad time format')
return now()
}
shms := s.right(pos)
hms := shms.split(':')
hour := hms[0]
minute := hms[1]
second := hms[2]
// //////////
return new_time(Time {
year: ymd[0].int()
month: ymd[1].int()
day: ymd[2].int()
hour: hour.int()
minute: minute.int()
second: second.int()
})
}
fn new_time(t Time) Time {
return{t | uni: t.calc_unix()}
}
fn (t &Time) calc_unix() int {
if t.uni != 0 {
return t.uni
}
tt := C.tm{
tm_sec : t.second
tm_min : t.minute
tm_hour : t.hour
tm_mday : t.day
tm_mon : t.month-1
tm_year : t.year - 1900
}
return C.mktime(&tt)
}
// TODO add(d time.Duration)
pub fn (t Time) add_seconds(seconds int) Time {
return unix(t.uni + seconds)
}
// TODO use time.Duration instead of seconds
fn since(t Time) int {
return 0
}
pub fn (t Time) relative() string {
now := time.now()
secs := now.uni - t.uni
if secs <= 30 {
// right now or in the future
// TODO handle time in the future
return 'now'
}
if secs < 60 {
return '1m'
}
if secs < 3600 {
return '${secs/60}m'
}
if secs < 3600 * 24 {
return '${secs/3600}h'
}
if secs < 3600 * 24 * 5 {
return '${secs/3600/24}d'
}
if secs > 3600 * 24 * 10000 {
return ''
}
return t.md()
}
fn day_of_week(y, m, d int) int {
// TODO please no
//# return (d += m < 3 ? y-- : y - 2, 23*m/9 + d + 4 + y/4- y/100 + y/400)%7;
return 0
}
pub fn (t Time) day_of_week() int {
return day_of_week(t.year, t.month, t.day)
}
// weekday_str() returns the current day in string (upto 3 characters)
pub fn (t Time) weekday_str() string {
i := t.day_of_week() - 1
return Days.substr(i * 3, (i + 1) * 3)
}