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use ::tui::backend::Backend;
use ::tui::layout::{Alignment, Rect};
use ::tui::style::{Color, Modifier, Style};
use ::tui::terminal::Frame;
use ::tui::widgets::{Paragraph, Text, Widget};
use crate::display::{DisplayBandwidth, UIState};
use tui::layout::{Constraint, Direction};
pub struct HeaderDetails<'a> {
pub state: &'a UIState,
pub elapsed_time: std::time::Duration,
pub paused: bool,
}
impl<'a> HeaderDetails<'a> {
pub fn render(&self, frame: &mut Frame<impl Backend>, rect: Rect) {
let parts = self.header_parts(rect);
let color = if self.paused {
Color::Yellow
} else {
Color::Green
};
if parts.get(0).is_some() {
self.render_bandwidth(frame, parts[0], &color);
}
if parts.get(1).is_some() {
self.render_paused(frame, parts[1], &color);
}
if parts.get(2).is_some() && self.state.cumulative_mode {
self.render_elapsed_time(frame, parts[2], &color);
}
}
fn render_bandwidth(&self, frame: &mut Frame<impl Backend>, rect: Rect, color: &Color) {
let c_mode = self.state.cumulative_mode;
let title_text = {
[Text::styled(
format!(
" Total Up / Down: {} / {}",
DisplayBandwidth {
bandwidth: self.state.total_bytes_uploaded as f64,
as_rate: !c_mode,
},
DisplayBandwidth {
bandwidth: self.state.total_bytes_downloaded as f64,
as_rate: !c_mode,
}
),
Style::default().fg(*color).modifier(Modifier::BOLD),
)]
};
Paragraph::new(title_text.iter())
.alignment(Alignment::Left)
.render(frame, rect);
}
fn render_elapsed_time(&self, frame: &mut Frame<impl Backend>, rect: Rect, color: &Color) {
let elapsed_time_text = [Text::styled(
format!(
"Duration: {:02}:{:02}:{:02} ",
self.elapsed_time.as_secs() / 3600,
(self.elapsed_time.as_secs() % 3600) / 60,
self.elapsed_time.as_secs() % 60
),
Style::default().fg(*color).modifier(Modifier::BOLD),
)];
Paragraph::new(elapsed_time_text.iter())
.alignment(Alignment::Right)
.render(frame, rect);
}
fn render_paused(&self, frame: &mut Frame<impl Backend>, rect: Rect, color: &Color) {
if self.paused {
let paused_text = [Text::styled(
format!("PAUSED"),
Style::default().fg(*color).modifier(Modifier::BOLD),
)];
Paragraph::new(paused_text.iter())
.alignment(Alignment::Center)
.render(frame, rect);
}
}
fn header_parts(&self, rect: Rect) -> Vec<Rect> {
const MAX_BANDWIDTH_STRING_LENGTH: u16 = 31;
let number_of_columns = rect.width / MAX_BANDWIDTH_STRING_LENGTH;
let constraints: Vec<Constraint> = (0..number_of_columns)
.map(|_| Constraint::Percentage(100 / number_of_columns))
.collect();
::tui::layout::Layout::default()
.direction(Direction::Horizontal)
.margin(0)
.constraints(constraints.as_ref())
.split(rect)
}
}
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