rhit 2.0.4

nginx log " analyzer
Documentation 
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use {
    super::*,
    crate::*,
    termimad::minimad::OwningTemplateExpander,
};

static MD_SHORT: &str = r#"
## HTTP status codes:
|:-:|:-:|:-:|:-:
|**2xx**|**3xx**|**4xx**|**5xx**
|:-:|:-:|:-:|:-:
|${percent_2xx}|${percent_3xx}|${percent_4xx}|${percent_5xx}
|-:
"#;

pub fn print_status_codes(
    log_lines: &[LogLine],
    printer: &Printer,
    trend_computer: Option<&TrendComputer>,
) {
    if printer.detail_level == 0 {
        print_status_summary(log_lines, printer);
        return;
    }
    let section = Section {
        groups_name: "HTTP status codes",
        group_key: "status",
        view: View::Full,
        changes: false,
    };
    printer.print_groups(
        &section,
        log_lines,
        |_| true,
        |line| line.status,
        trend_computer,
    );
}

fn to_percent(count: usize, total: usize) -> String {
    let percent = 100f32 * (count as f32) / (total as f32);
    format!("{:.1}%", percent)
}

fn print_status_summary(
    log_lines: &[LogLine],
    printer: &Printer,
){
    let mut expander = OwningTemplateExpander::new();
    let (mut s2, mut s3, mut s4, mut s5) = (0, 0, 0, 0);
    for ll in log_lines {
        match ll.status {
            200..=299 => s2 += 1,
            300..=399 => s3 += 1,
            400..=499 => s4 += 1,
            _ => s5 += 1,
        }
    }
    expander
        .set("percent_2xx", to_percent(s2, log_lines.len()))
        .set("percent_3xx", to_percent(s3, log_lines.len()))
        .set("percent_4xx", to_percent(s4, log_lines.len()))
        .set("percent_5xx", to_percent(s5, log_lines.len()));
    printer.print(expander, MD_SHORT);
}