netspd 0.1.5

A beautiful, modern, minimalistic network speed testing terminal application
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
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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166

//! The results summary shown when a test completes.

use ratatui::layout::{Constraint, Layout, Rect};
use ratatui::style::{Color, Modifier, Style};
use ratatui::text::{Line, Span};
use ratatui::widgets::Paragraph;
use ratatui::Frame;

use crate::engine::models::{TestReport, TransferStats};
use crate::tui::theme::Theme;
use crate::utils::format::{format_bytes, format_millis, split_bps};

/// Renders the completion summary: download and upload headline numbers
/// side by side, with latency details and totals underneath.
pub fn render(frame: &mut Frame, area: Rect, theme: &Theme, report: &TestReport) {
    if area.height < 6 {
        return;
    }
    let colors = &theme.colors;

    let [title_area, _, speeds_area, _, latency_area, verdict_area, totals_area] =
        Layout::vertical([
            Constraint::Length(1),
            Constraint::Length(1),
            Constraint::Length(3),
            Constraint::Length(1),
            Constraint::Length(1),
            Constraint::Length(1),
            Constraint::Length(1),
        ])
        .areas(area);

    frame.render_widget(
        Paragraph::new(
            Line::from(Span::styled(
                format!("{} TEST COMPLETE", crate::tui::glyphs::current().check),
                Style::default()
                    .fg(colors.success)
                    .add_modifier(Modifier::BOLD),
            ))
            .centered(),
        ),
        title_area,
    );

    let [download_area, upload_area] =
        Layout::horizontal([Constraint::Percentage(50), Constraint::Percentage(50)])
            .areas(speeds_area);
    headline(
        frame,
        download_area,
        &format!("{} DOWNLOAD", crate::tui::glyphs::current().down),
        &report.download,
        colors.download,
        colors.subtext,
    );
    headline(
        frame,
        upload_area,
        &format!("{} UPLOAD", crate::tui::glyphs::current().up),
        &report.upload,
        colors.upload,
        colors.subtext,
    );

    let latency = &report.latency;
    let mut latency_spans = vec![
        Span::styled("ping ", Style::default().fg(colors.subtext)),
        Span::styled(
            format_millis(latency.average_ms),
            Style::default().fg(colors.latency),
        ),
        Span::styled("   jitter ", Style::default().fg(colors.subtext)),
        Span::styled(
            format_millis(latency.jitter_ms),
            Style::default().fg(colors.latency),
        ),
        Span::styled("   loss ", Style::default().fg(colors.subtext)),
        Span::styled(
            format!("{:.0}%", latency.packet_loss_pct),
            Style::default().fg(colors.latency),
        ),
    ];
    if let Some(bloat) = report.bufferbloat {
        let grade_color = match bloat.grade {
            crate::engine::models::BufferbloatGrade::APlus
            | crate::engine::models::BufferbloatGrade::A => colors.success,
            crate::engine::models::BufferbloatGrade::B
            | crate::engine::models::BufferbloatGrade::C => colors.warning,
            _ => colors.danger,
        };
        latency_spans.push(Span::styled(
            "   bufferbloat ",
            Style::default().fg(colors.subtext),
        ));
        latency_spans.push(Span::styled(
            bloat.grade.label(),
            Style::default()
                .fg(grade_color)
                .add_modifier(Modifier::BOLD),
        ));
    }
    frame.render_widget(
        Paragraph::new(Line::from(latency_spans).centered()),
        latency_area,
    );

    frame.render_widget(
        Paragraph::new(
            Line::from(Span::styled(
                crate::app::verdict::verdict(report),
                Style::default().fg(colors.subtext),
            ))
            .centered(),
        ),
        verdict_area,
    );

    let transferred = report.download.bytes + report.upload.bytes;
    frame.render_widget(
        Paragraph::new(
            Line::from(vec![
                Span::styled(
                    format!("{}   ", report.server_name),
                    Style::default().fg(colors.muted),
                ),
                Span::styled(
                    format!("{} transferred", format_bytes(transferred)),
                    Style::default().fg(colors.muted),
                ),
            ])
            .centered(),
        ),
        totals_area,
    );
}

/// One large speed figure with its label and peak value.
fn headline(
    frame: &mut Frame,
    area: Rect,
    label: &str,
    stats: &TransferStats,
    color: Color,
    subtext: Color,
) {
    let (value, unit) = split_bps(stats.average_bps);
    let (peak, peak_unit) = split_bps(stats.peak_bps);
    let lines = vec![
        Line::from(Span::styled(label.to_owned(), Style::default().fg(subtext))).centered(),
        Line::from(vec![
            Span::styled(
                value,
                Style::default().fg(color).add_modifier(Modifier::BOLD),
            ),
            Span::styled(format!(" {unit}"), Style::default().fg(subtext)),
        ])
        .centered(),
        Line::from(Span::styled(
            format!("peak {peak} {peak_unit}"),
            Style::default().fg(subtext),
        ))
        .centered(),
    ];
    frame.render_widget(Paragraph::new(lines), area);
}