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use ratatui::{
Frame,
layout::{Constraint, Direction, Layout},
prelude::Rect,
style::{Color, Modifier, Style, Stylize},
text::{Line, Span},
widgets::{Block, Borders, Clear, List, ListItem, ListState, Paragraph, Wrap},
};
use crate::app::App;
pub fn ui(frame: &mut Frame, app: &mut App) {
let constraints = [Constraint::Fill(1), Constraint::Length(3)];
let layout = Layout::vertical(constraints);
let [top, bottom] = frame.area().layout(&layout);
let split =
Layout::horizontal([Constraint::Percentage(50), Constraint::Percentage(50)]).split(top);
let split_vert =
Layout::vertical([Constraint::Percentage(50), Constraint::Percentage(50)]).split(split[1]);
render_packages(frame, split[0], app);
render_use_flags(frame, split_vert[0], app);
render_package_metadata(frame, split_vert[1], app);
let text = match app.showing_search_window {
false => {
let mut main_key_hint = "(q) to quit | (j) down | (k) up | (/) to search".to_string();
if let (Some(current), Some(total)) = (app.current_search_index, app.search_indexes_len)
{
main_key_hint.push_str(&format!(
" | (n) for next search | (N) for previous search | Searches found: {} / {}",
current + 1,
total
));
}
main_key_hint
}
true => "(esc) to quit search | (enter) to search".to_string(),
};
let key_hint = Span::styled(text, Style::default().fg(Color::Yellow));
let key_notes_footer =
Paragraph::new(Line::from(key_hint)).block(Block::default().borders(Borders::ALL));
frame.render_widget(key_notes_footer, bottom);
if app.showing_search_window {
let mut popup_block = Block::default()
.title("Search")
.borders(Borders::ALL)
.border_type(ratatui::widgets::BorderType::Rounded);
if let Some(found) = app.search_found {
if found {
popup_block = popup_block.border_style(Style::default().fg(Color::Green))
} else {
popup_block = popup_block.border_style(Style::default().fg(Color::Red))
}
}
app.textarea.set_block(popup_block);
app.textarea.set_style(Style::default().fg(Color::Yellow));
app.textarea.set_cursor_line_style(Style::default());
let area = search_popup_rect(70, frame.area());
frame.render_widget(Clear, area);
frame.render_widget(&app.textarea, area);
}
}
fn render_package_metadata(frame: &mut Frame, area: Rect, app: &mut App) {
let pkg = app.current_package();
let bold_style = Style::default().add_modifier(Modifier::BOLD);
let maintainer = Line::from_iter([
Span::styled("Maintainer: ", bold_style),
Span::raw(pkg.maintainer.as_deref().unwrap_or("Unknown")),
]);
let version = Line::from_iter([
Span::styled("Version: ", bold_style),
Span::raw(pkg.version),
]);
let repository = Line::from_iter([
Span::styled("Repository: ", bold_style),
Span::raw(pkg.repository),
]);
let license = Line::from_iter([
Span::styled("License: ", bold_style),
Span::raw(pkg.license.as_deref().unwrap_or("Unknown")),
]);
let description = Line::from_iter([
Span::styled("Description: ", bold_style),
Span::raw(pkg.description.as_deref().unwrap_or("Unknown")),
]);
// let homepage = Line::from_iter([
// Span::styled("Homepage: ", bold_style),
// Span::styled(
// pkg.homepage.as_deref().unwrap_or("Unknown"),
// Style::default().fg(Color::LightBlue),
// ),
// ]);
let mut lines = Vec::new();
// First line: label
lines.push(Line::from(vec![
Span::styled("Homepage: ", bold_style),
Span::raw(""),
]));
// Following lines: one URL per line, indented
if let Some(homepages) = pkg.homepage {
for url in homepages.into_iter().filter(|s| !s.is_empty()) {
lines.push(Line::from(vec![
Span::raw(" "), // indentation
Span::styled(
url,
Style::default()
.fg(Color::LightBlue)
.add_modifier(Modifier::UNDERLINED),
),
]));
}
} else {
lines.push(Line::from(vec![
Span::raw(" "),
Span::styled("Unknown", Style::default().fg(Color::DarkGray)),
]));
}
let mut homepage = lines;
let mut lines = vec![maintainer, version, repository, license, description];
lines.append(&mut homepage);
let paragraph = Paragraph::new(lines)
.block(Block::default().title("Metadata").borders(Borders::ALL))
.wrap(Wrap { trim: false });
frame.render_widget(paragraph, area);
}
fn search_popup_rect(percent_x: u16, r: Rect) -> Rect {
// Cut the given rectangle into three vertical pieces
let popup_layout = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Length(10), Constraint::Length(3)])
.split(r);
// Then cut the middle vertical piece into three width-wise pieces
Layout::default()
.direction(Direction::Horizontal)
.constraints([
Constraint::Percentage((100 - percent_x) / 2),
Constraint::Percentage(percent_x),
Constraint::Percentage((100 - percent_x) / 2),
])
.split(popup_layout[1])[1] // Return the middle chunk
}
fn render_packages(frame: &mut Frame, area: Rect, app: &mut App) {
let items = app.installed_packages().into_iter().map(|x| x.name.clone());
let list = List::new(items)
.style(Color::White)
.highlight_style(Modifier::REVERSED)
.highlight_symbol("> ")
.block(
Block::new()
.borders(Borders::ALL)
.title("Installed packages"),
);
frame.render_stateful_widget(list, area, &mut app.list_state);
}
fn render_use_flags(frame: &mut Frame, area: Rect, app: &mut App) {
let selected_package = app.current_package();
let items = selected_package.use_flags.into_iter().map(|x| {
let color = if x.enabled {
Color::Green
} else if x.default {
Color::Blue
} else {
Color::Red
};
let text_style = if x.default {
Style::default().add_modifier(Modifier::ITALIC).fg(color)
} else {
Style::default().fg(color)
};
ListItem::new(x.name).style(text_style)
});
let list = List::new(items)
.style(Color::White)
.scroll_padding(1)
.direction(ratatui::widgets::ListDirection::TopToBottom)
.block(Block::new().borders(Borders::ALL).title("USE Flags"));
let mut list_state = ListState::default();
list_state.select_first();
frame.render_stateful_widget(list, area, &mut list_state);
}
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