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use std::{io, time::Duration};
use anyhow::Result;
use crossterm::{
event::{self, KeyCode, KeyEventKind},
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
ExecutableCommand,
};
use ratatui::{
backend::CrosstermBackend,
layout::Constraint,
style::{Modifier, Style, Stylize},
text::Span,
widgets::{Block, Borders, HighlightSpacing, Row, Table, TableState},
Terminal,
};
use crate::{exercise::Exercise, state::State};
// 40 FPS.
const UPDATE_INTERVAL: Duration = Duration::from_millis(25);
pub fn list(state: &State, exercises: &[Exercise]) -> Result<()> {
let mut stdout = io::stdout().lock();
stdout.execute(EnterAlternateScreen)?;
enable_raw_mode()?;
let mut terminal = Terminal::new(CrosstermBackend::new(&mut stdout))?;
terminal.clear()?;
let header = Row::new(["State", "Name", "Path"]);
let max_name_len = exercises
.iter()
.map(|exercise| exercise.name.len())
.max()
.unwrap_or(4) as u16;
let widths = [
Constraint::Length(7),
Constraint::Length(max_name_len),
Constraint::Fill(1),
];
let rows = exercises
.iter()
.zip(&state.progress)
.map(|(exercise, done)| {
let state = if *done {
"DONE".green()
} else {
"PENDING".yellow()
};
Row::new([
state,
Span::raw(&exercise.name),
Span::raw(exercise.path.to_string_lossy()),
])
})
.collect::<Vec<_>>();
let table = Table::new(rows, widths)
.header(header)
.column_spacing(2)
.highlight_spacing(HighlightSpacing::Always)
.highlight_style(Style::new().add_modifier(Modifier::REVERSED))
.highlight_symbol("🦀");
let mut table_state = TableState::default().with_selected(Some(0));
loop {
terminal.draw(|frame| {
let area = frame.size();
frame.render_stateful_widget(&table, area, &mut table_state);
})?;
if event::poll(UPDATE_INTERVAL)? {
if let event::Event::Key(key) = event::read()? {
if key.kind == KeyEventKind::Press && key.code == KeyCode::Char('q') {
break;
}
}
}
}
drop(terminal);
stdout.execute(LeaveAlternateScreen)?;
disable_raw_mode()?;
Ok(())
}
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