1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
// NOTE: Wrote this before implementing GTK Stuff so is useless now, but I like it so it stays
use std::time::{SystemTime, UNIX_EPOCH};
pub struct Date {
pub day: u32,
pub month: u32,
pub year: u32,
}
impl Date {
fn new(day: u32, month: u32, year: u32) -> Date {
Date { day, month, year }
}
}
pub fn current_date() -> Date {
seconds_to_date(seconds_since_epoch())
}
fn seconds_since_epoch() -> u64 {
let now = SystemTime::now();
let since_epoch = now
.duration_since(UNIX_EPOCH)
.expect("The fabric of space and time has been disrupted, probably try and fix that");
since_epoch.as_secs()
}
fn seconds_to_date(seconds: u64) -> Date {
let mut days_since_epoch = seconds / (60 * 60 * 24);
let mut year = 1970;
let mut days_in_year = if is_leap(year) { 366 } else { 365 }; // Replace with 365/366 based on
// 1970
while days_since_epoch >= days_in_year {
days_since_epoch -= days_in_year;
year += 1;
days_in_year = if is_leap(year) { 366 } else { 365 };
}
let days_in_month = [
31, // January
if is_leap(year) { 29 } else { 28 }, // February
31, // March
30, // April
31, // May
30, // June
31, // July
31, // August
30, // September
31, // October
30, // November
31, // December
];
let mut month = 0;
while days_since_epoch >= days_in_month[month as usize] {
days_since_epoch -= days_in_month[month as usize];
month += 1;
}
Date::new((days_since_epoch + 1) as u32, month + 1, year)
}
fn is_leap(year: u32) -> bool {
year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)
}
|
