ccstats 0.2.61

Fast Claude Code token usage statistics CLI
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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145

use chrono::offset::Offset;
use chrono::{DateTime, FixedOffset, Local, Utc};
use chrono_tz::Tz;
use std::str::FromStr;

use crate::error::AppError;

#[derive(Debug, Clone, Copy)]
pub(crate) enum Timezone {
    Local,
    Named(Tz),
}

impl Timezone {
    pub(crate) fn parse(value: Option<&str>) -> Result<Self, AppError> {
        let Some(raw) = value else {
            return Ok(Timezone::Local);
        };
        let trimmed = raw.trim();
        if trimmed.is_empty() || trimmed.eq_ignore_ascii_case("local") {
            return Ok(Timezone::Local);
        }
        if trimmed.eq_ignore_ascii_case("utc") || trimmed.eq_ignore_ascii_case("z") {
            return Ok(Timezone::Named(chrono_tz::UTC));
        }
        Tz::from_str(trimmed)
            .map(Timezone::Named)
            .map_err(|_| AppError::InvalidTimezone {
                input: trimmed.to_string(),
            })
    }

    pub(crate) fn to_fixed_offset(self, utc: DateTime<Utc>) -> DateTime<FixedOffset> {
        match self {
            Timezone::Local => {
                let local = utc.with_timezone(&Local);
                let offset = local.offset().fix();
                local.with_timezone(&offset)
            }
            Timezone::Named(tz) => {
                let local = utc.with_timezone(&tz);
                let offset = local.offset().fix();
                local.with_timezone(&offset)
            }
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn parse_none_returns_local() {
        assert!(matches!(Timezone::parse(None).unwrap(), Timezone::Local));
    }

    #[test]
    fn parse_empty_returns_local() {
        assert!(matches!(
            Timezone::parse(Some("")).unwrap(),
            Timezone::Local
        ));
    }

    #[test]
    fn parse_local_string_returns_local() {
        assert!(matches!(
            Timezone::parse(Some("local")).unwrap(),
            Timezone::Local
        ));
        assert!(matches!(
            Timezone::parse(Some("LOCAL")).unwrap(),
            Timezone::Local
        ));
        assert!(matches!(
            Timezone::parse(Some("Local")).unwrap(),
            Timezone::Local
        ));
    }

    #[test]
    fn parse_utc_variants() {
        let tz = Timezone::parse(Some("utc")).unwrap();
        assert!(matches!(tz, Timezone::Named(chrono_tz::UTC)));

        let tz = Timezone::parse(Some("UTC")).unwrap();
        assert!(matches!(tz, Timezone::Named(chrono_tz::UTC)));

        let tz = Timezone::parse(Some("z")).unwrap();
        assert!(matches!(tz, Timezone::Named(chrono_tz::UTC)));

        let tz = Timezone::parse(Some("Z")).unwrap();
        assert!(matches!(tz, Timezone::Named(chrono_tz::UTC)));
    }

    #[test]
    fn parse_named_timezone() {
        let tz = Timezone::parse(Some("America/New_York")).unwrap();
        assert!(matches!(tz, Timezone::Named(chrono_tz::America::New_York)));
    }

    #[test]
    fn parse_asia_timezone() {
        let tz = Timezone::parse(Some("Asia/Shanghai")).unwrap();
        assert!(matches!(tz, Timezone::Named(chrono_tz::Asia::Shanghai)));
    }

    #[test]
    fn parse_invalid_timezone_returns_error() {
        let err = Timezone::parse(Some("Mars/Olympus")).unwrap_err();
        assert!(err.to_string().contains("Mars/Olympus"));
    }

    #[test]
    fn parse_whitespace_trimmed() {
        assert!(matches!(
            Timezone::parse(Some("  local  ")).unwrap(),
            Timezone::Local
        ));
        assert!(matches!(
            Timezone::parse(Some("  UTC  ")).unwrap(),
            Timezone::Named(chrono_tz::UTC)
        ));
    }

    #[test]
    fn to_fixed_offset_utc_preserves_time() {
        let utc = "2026-02-12T10:00:00Z".parse::<DateTime<Utc>>().unwrap();
        let tz = Timezone::Named(chrono_tz::UTC);
        let fixed = tz.to_fixed_offset(utc);
        assert_eq!(fixed.offset().local_minus_utc(), 0);
        assert_eq!(fixed.format("%H:%M").to_string(), "10:00");
    }

    #[test]
    fn to_fixed_offset_named_shifts_time() {
        let utc = "2026-06-15T12:00:00Z".parse::<DateTime<Utc>>().unwrap();
        let tz = Timezone::parse(Some("America/New_York")).unwrap();
        let fixed = tz.to_fixed_offset(utc);
        // EDT is UTC-4 in June
        assert_eq!(fixed.offset().local_minus_utc(), -4 * 3600);
        assert_eq!(fixed.format("%H:%M").to_string(), "08:00");
    }
}