ebman 0.1.1

k9s-style TUI for AWS Elastic Beanstalk
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

use std::{path::PathBuf, time::Duration};

use crate::util::{config_file, parse_bool};

#[derive(Debug, Clone)]
pub struct Config {
    pub refresh_interval: Duration,
    pub extra_regions: Vec<String>,
    pub redact_default: Option<bool>,
    pub grouped_default: Option<bool>,
    pub theme: String,
    pub icons: String, // "unicode" | "ascii"
    pub notify_bell: bool,
    pub required_tags: Vec<String>,
    /// Optional URL to POST a small JSON payload to when an env transitions
    /// into Red health. Use anything that accepts a webhook (Slack, Discord,
    /// custom collector). Disabled when unset.
    pub webhook_url: Option<String>,
}

impl Default for Config {
    fn default() -> Self {
        Self {
            refresh_interval: Duration::from_secs(15),
            extra_regions: Vec::new(),
            redact_default: None,
            grouped_default: None,
            theme: "dark".into(),
            icons: "unicode".into(),
            notify_bell: false,
            required_tags: Vec::new(),
            webhook_url: None,
        }
    }
}

pub fn load() -> Config {
    let path = config_path();
    let Ok(text) = std::fs::read_to_string(&path) else {
        return Config::default();
    };
    parse(&text)
}

pub fn parse(text: &str) -> Config {
    let mut cfg = Config::default();
    for line in text.lines() {
        let line = line.trim();
        if line.is_empty() || line.starts_with('#') {
            continue;
        }
        let Some((key, raw_val)) = line.split_once('=') else {
            continue;
        };
        let key = key.trim();
        let value = raw_val.trim().trim_matches('"').to_string();
        match key {
            "refresh_interval_secs" => {
                if let Ok(n) = value.parse::<u64>() {
                    if n > 0 {
                        cfg.refresh_interval = Duration::from_secs(n);
                    }
                }
            }
            "extra_regions" => {
                cfg.extra_regions = value
                    .split(',')
                    .map(|s| s.trim().to_string())
                    .filter(|s| !s.is_empty())
                    .collect();
            }
            "redact_default" => cfg.redact_default = parse_bool(&value),
            "grouped_default" => cfg.grouped_default = parse_bool(&value),
            "theme" => cfg.theme = value,
            "icons" => cfg.icons = value,
            "notify_bell" => {
                if let Some(b) = parse_bool(&value) {
                    cfg.notify_bell = b;
                }
            }
            "required_tags" => {
                cfg.required_tags = value
                    .split(',')
                    .map(|s| s.trim().to_string())
                    .filter(|s| !s.is_empty())
                    .collect();
            }
            "webhook_url" => {
                let v = value.trim();
                cfg.webhook_url = if v.is_empty() {
                    None
                } else {
                    Some(v.to_string())
                };
            }
            _ => {}
        }
    }
    cfg
}

fn config_path() -> PathBuf {
    config_file("config.toml")
}

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

    #[test]
    fn parse_overrides_defaults() {
        let text = r#"
refresh_interval_secs = 30
extra_regions = "us-gov-east-1, cn-north-1"
redact_default = true
grouped_default = false
"#;
        let cfg = parse(text);
        assert_eq!(cfg.refresh_interval, Duration::from_secs(30));
        assert_eq!(
            cfg.extra_regions,
            vec!["us-gov-east-1".to_string(), "cn-north-1".to_string()]
        );
        assert_eq!(cfg.redact_default, Some(true));
        assert_eq!(cfg.grouped_default, Some(false));
    }

    #[test]
    fn parse_ignores_zero_interval() {
        let cfg = parse("refresh_interval_secs = 0\n");
        assert_eq!(cfg.refresh_interval, Duration::from_secs(15));
    }

    #[test]
    fn parse_empty_returns_defaults() {
        let cfg = parse("");
        assert_eq!(cfg.refresh_interval, Duration::from_secs(15));
        assert!(cfg.extra_regions.is_empty());
        assert!(cfg.redact_default.is_none());
    }
}