clock-rs 0.2.1

A modern, terminal-based digital clock
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

use std::fmt::Write;

use chrono::{Local, Timelike, Utc};

use crate::error::Error;

pub enum TimeZone {
    Local,
    Utc,
}

impl TimeZone {
    pub fn from_utc(utc: bool) -> Self {
        if utc {
            return Self::Utc;
        }

        Self::Local
    }

    pub fn get_time(&self) -> (u32, u32, u32) {
        if let Self::Utc = self {
            let utc = Utc::now();

            return (utc.hour(), utc.minute(), utc.second());
        }

        let local = Local::now();

        (local.hour(), local.minute(), local.second())
    }

    pub fn text(&self, date_format: &str, max_len: u16) -> Result<String, Error> {
        let mut text = String::new();

        write!(
            text,
            "{}",
            match self {
                Self::Local => Local::now().format(date_format),
                Self::Utc => Utc::now().format(date_format),
            }
        )
        .map_err(|err| Error::DateFormatInvalid {
            fmt: date_format.to_string(),
            err: err.to_string(),
        })?;

        let fmt_len = text.len() as u16;

        if fmt_len > max_len {
            return Err(Error::DateFormatTooWide { fmt_len, max_len });
        }

        Ok(text)
    }
}