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//! source_picker — interactive table for choosing which package source to use
//! when the same package name is found in multiple backends.
use super::{grid_table, theme};
use crate::pm::PackageInfo;
use crossterm::{
cursor,
event::{self, Event, KeyCode},
execute,
terminal::{self, EnterAlternateScreen, LeaveAlternateScreen},
};
use ratatui::{
backend::CrosstermBackend,
layout::{Constraint, Direction, Layout},
style::Style,
text::{Line, Span},
widgets::{Block, Borders, Paragraph},
Terminal,
};
use std::io::{self, stdout};
use std::time::Duration;
/// Display an interactive source-picker TUI.
/// Returns the index into `candidates` the user selected, or None if cancelled.
pub async fn run_source_picker(candidates: &[PackageInfo]) -> Option<usize> {
if candidates.is_empty() {
return None;
}
if candidates.len() == 1 {
return Some(0);
}
terminal::enable_raw_mode().ok()?;
let mut stdout = stdout();
execute!(stdout, EnterAlternateScreen, cursor::Hide).ok()?;
let backend = CrosstermBackend::new(stdout);
let mut terminal = Terminal::new(backend).ok()?;
let result = picker_loop(&mut terminal, candidates).await;
terminal::disable_raw_mode().ok();
execute!(terminal.backend_mut(), LeaveAlternateScreen, cursor::Show).ok();
result
}
async fn picker_loop(
terminal: &mut Terminal<CrosstermBackend<io::Stdout>>,
candidates: &[PackageInfo],
) -> Option<usize> {
let mut selected = 0usize;
let pkg_name = &candidates[0].name;
loop {
terminal
.draw(|f| {
let area = f.area();
f.render_widget(
Block::default().style(Style::default().bg(theme::bg_color())),
area,
);
let chunks = Layout::default()
.direction(Direction::Vertical)
.constraints([
Constraint::Length(3),
Constraint::Min(4),
Constraint::Length(1),
])
.split(area);
// Header
f.render_widget(
Paragraph::new(Line::from(vec![
Span::styled(" 📦 ", Style::default().fg(theme::hot_pink())),
Span::styled(
format!("Multiple sources found for \"{}\"", pkg_name),
Style::default().fg(theme::vivid_purple()),
),
Span::styled(" — choose one:", theme::dim()),
]))
.block(
Block::default()
.borders(Borders::ALL)
.border_style(theme::border())
.style(Style::default().bg(theme::bg_color())),
),
chunks[0],
);
// Table
let desc_max = (chunks[1].width as usize)
.saturating_sub(4 + 16 + 14 + 6)
.max(10);
let rows: Vec<grid_table::GridRow> = candidates
.iter()
.enumerate()
.map(|(i, pkg)| {
let ver: String = if pkg.version.is_empty() {
"—".to_string()
} else {
pkg.version.chars().take(12).collect()
};
let desc: String = pkg.description.chars().take(desc_max).collect();
grid_table::GridRow {
cells: vec![
grid_table::GridCell {
text: format!("{}", i + 1),
style: theme::number(),
},
grid_table::GridCell {
text: pkg.source.clone(),
style: theme::source_tag(),
},
grid_table::GridCell {
text: ver,
style: theme::version(),
},
grid_table::GridCell {
text: desc,
style: theme::desc(),
},
],
}
})
.collect();
let columns = [
grid_table::Column {
header: "#",
width: Constraint::Length(4),
},
grid_table::Column {
header: "Source",
width: Constraint::Length(16),
},
grid_table::Column {
header: "Version",
width: Constraint::Length(14),
},
grid_table::Column {
header: "Description",
width: Constraint::Min(10),
},
];
f.render_widget(
grid_table::GridTable {
columns: &columns,
rows: &rows,
selected: Some(selected),
header_style: theme::grid_header(),
separator_style: theme::grid_separator(),
selected_style: theme::highlight(),
},
chunks[1],
);
// Help bar
f.render_widget(
Paragraph::new(Span::styled(
" ↑↓ navigate • Enter select • q / Esc cancel",
theme::status_text(),
)),
chunks[2],
);
})
.ok();
if event::poll(Duration::from_millis(100)).unwrap_or(false) {
if let Ok(Event::Key(key)) = event::read() {
match key.code {
KeyCode::Up => {
selected = selected.saturating_sub(1);
}
KeyCode::Down => {
if selected + 1 < candidates.len() {
selected += 1;
}
}
KeyCode::Enter => return Some(selected),
KeyCode::Char('q') | KeyCode::Esc => return None,
_ => {}
}
}
}
}
}