lifec 0.1.0

A CLI tool that displays your life calendar.
Documentation 
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92

use chrono::DateTime;

static WEEKS_PER_YEAR: u32 = 52;

pub enum LifeCalendarStyle {
    Full,
    Short { rows: u32, offset: i32 },
}

pub struct LifeCalendarConfig {
    pub style: LifeCalendarStyle,
    pub years_total: u32,
    pub birth_date: DateTime<chrono::Local>,
}

pub struct LifeCalendar {
    style: LifeCalendarStyle,
    years_total: u32,
    weeks_total: u32,
    weeks_lived: u32,
}

impl LifeCalendar {
    pub fn from_cfg(config: LifeCalendarConfig) -> Self {
        let seconds_lived = chrono::Local::now().timestamp() - config.birth_date.timestamp();
        let weeks_lived = (seconds_lived / 60 / 60 / 24 / 7) as u32;

        Self {
            style: config.style,
            years_total: config.years_total,
            weeks_total: config.years_total * WEEKS_PER_YEAR,
            weeks_lived,
        }
    }

    pub fn print(&self) {
        LifeCalendar::print_delimiter();

        let years_lived = self.weeks_lived / WEEKS_PER_YEAR;

        let (start_year, end_year) = match self.style {
            LifeCalendarStyle::Short { rows, offset } => (
                (years_lived as i32 + offset) as u32,
                (years_lived as i32 + offset) as u32 + rows,
            ),
            LifeCalendarStyle::Full => (0, self.years_total),
        };

        for i in start_year..end_year {
            self.print_row(i);
        }

        LifeCalendar::print_delimiter();

        self.print_stats();
    }

    fn print_delimiter() {
        let delimiter = "═".repeat((WEEKS_PER_YEAR + 12) as usize);
        println!("{}", delimiter);
    }

    fn print_row(&self, year: u32) {
        let lived_week_str = "█";
        let future_week_str = "░";

        let start_week = year * WEEKS_PER_YEAR;
        let end_week = start_week + WEEKS_PER_YEAR;

        // Print age
        print!(" {:2} - {:2} | ", year, year + 1);

        // Print weeks
        for i in start_week..=end_week {
            let week_str = if i <= self.weeks_lived {
                lived_week_str
            } else {
                future_week_str
            };

            print!("{}", week_str);
        }

        print!("\n");
    }

    fn print_stats(&self) {
        let life_progress = (self.weeks_lived as f32) / (self.weeks_total as f32) * 100.0;

        println!("Your life is {life_progress:.1}% over.");
    }
}