blob: b2f67c5a8bade1af7cc8b3a6d955a5af3a5aacf8 (
plain)
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
|
use std::fs::File;
use std::path::PathBuf;
use std::io::Read;
use std::time::{SystemTime, UNIX_EPOCH};
use time::{OffsetDateTime, format_description::well_known::Rfc2822};
use serde::{Serialize, Deserialize};
use serde_json;
#[derive(Serialize, Deserialize)]
pub struct Metadata {
pub id: String,
#[serde(alias = "createdOn")]
pub created_on: u64
}
impl Metadata {
pub fn read_or_create(file_path: &PathBuf) -> Metadata {
match Metadata::read_metadata_file(file_path) {
Some(metadata) => metadata,
None => {
let timestamp = SystemTime::now()
.duration_since(UNIX_EPOCH)
.map(|duration| duration.as_millis() as u64)
.unwrap_or_else(|_| 0);
return Metadata {
id: timestamp.to_string(),
created_on: timestamp
}
}
}
}
pub fn created_on_utc(&self) -> Option<String> {
let date = OffsetDateTime::from_unix_timestamp_nanos(
(self.created_on * 1_000_000).into()
).ok()?;
return date.format(&Rfc2822).ok();
}
fn read_metadata_file(file_path: &PathBuf) -> Option<Metadata> {
let mut file = File::open(file_path).ok()?;
let mut contents = String::new();
file.read_to_string(&mut contents).ok()?;
serde_json::from_str(&contents).ok()
}
}
|
