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use std::path::Component;
use std::path::Path;
use ratatui::buffer::Buffer;
use ratatui::layout::Rect;
use ratatui::style::{Color, Modifier, Style};
use ratatui::text::{Line, Span};
use ratatui::widgets::{Paragraph, Widget};
use unicode_width::UnicodeWidthStr;
use crate::context::AppContext;
use crate::{HOME_DIR, HOSTNAME, USERNAME};
pub struct TuiTopBar<'a> {
pub context: &'a AppContext,
path: &'a Path,
}
impl<'a> TuiTopBar<'a> {
pub fn new(context: &'a AppContext, path: &'a Path) -> Self {
Self { context, path }
}
}
impl<'a> Widget for TuiTopBar<'a> {
fn render(self, area: Rect, buf: &mut Buffer) {
let path_style = Style::default()
.fg(Color::LightBlue)
.add_modifier(Modifier::BOLD);
let mut ellipses = None;
let mut curr_path_str = self.path.to_string_lossy().into_owned();
let tab_width = self.context.tab_context_ref().tab_area_width();
let name_width = USERNAME.as_str().len() + HOSTNAME.as_str().len() + 2;
if tab_width + name_width > area.width as usize {
curr_path_str = "".to_owned();
} else if curr_path_str.width() > area.width as usize - tab_width - name_width {
if let Some(s) = self.path.file_name() {
let mut short_path = String::new();
let mut components: Vec<Component> = self.path.components().collect();
components.pop();
for component in components {
match component {
Component::RootDir => short_path.push('/'),
Component::Normal(s) => {
let ch = s.to_string_lossy().chars().next().unwrap();
short_path.push(ch);
short_path.push('/');
}
_ => {}
}
}
ellipses = Some(Span::styled(short_path, path_style));
curr_path_str = s.to_string_lossy().into_owned();
}
}
if self
.context
.config_ref()
.display_options_ref()
.tilde_in_titlebar()
{
if let Some(home_dir) = HOME_DIR.as_ref() {
let home_dir_str = home_dir.to_string_lossy().into_owned();
curr_path_str = curr_path_str.replace(&home_dir_str, "~");
}
}
let username_style = if USERNAME.as_str() == "root" {
Style::default().fg(Color::Red).add_modifier(Modifier::BOLD)
} else {
Style::default()
.fg(Color::LightGreen)
.add_modifier(Modifier::BOLD)
};
let mut text = vec![
Span::styled(USERNAME.as_str(), username_style),
Span::styled("@", username_style),
Span::styled(HOSTNAME.as_str(), username_style),
Span::styled(" ", username_style),
];
if let Some(s) = ellipses {
text.push(s);
}
text.extend([Span::styled(curr_path_str, path_style)]);
Paragraph::new(Line::from(text)).render(area, buf);
}
}
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