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use anyhow::Result;
use crossterm::event::{Event, KeyCode, KeyModifiers};
use tui::{
backend::Backend,
layout::{Constraint, Direction, Layout, Rect},
style::{Modifier, Style},
text::{Span, Spans},
widgets::{Block, Borders, List, ListItem, Paragraph},
Frame,
};
use crate::{
common::{OverflowText, StatefulList, Widget},
model::Command,
storage::SqliteStorage,
theme::Theme,
WidgetOutput,
};
pub struct SearchWidget<'s> {
storage: &'s mut SqliteStorage,
filter: String,
commands: StatefulList<Command>,
}
impl<'s> SearchWidget<'s> {
pub fn new(storage: &'s mut SqliteStorage, filter: String) -> Result<Self> {
let commands = storage.find_commands(&filter)?;
Ok(Self {
commands: StatefulList::with_items(commands),
filter,
storage,
})
}
}
impl<'s> Widget for SearchWidget<'s> {
fn min_height(&self) -> usize {
(self.commands.len() + 1).clamp(4, 15)
}
fn peek(&mut self) -> Result<Option<WidgetOutput>> {
if self.commands.len() == 1 {
Ok(self.commands.current().map(|c| c.cmd.clone()).map(WidgetOutput::output))
} else {
Ok(None)
}
}
fn render<B: Backend>(&mut self, frame: &mut Frame<B>, area: Rect, inline: bool, theme: Theme) {
let chunks = Layout::default()
.direction(Direction::Vertical)
.margin(!inline as u16)
.constraints([
if inline {
Constraint::Length(1)
} else {
Constraint::Length(3)
},
Constraint::Min(1),
])
.split(area);
let header = chunks[0];
let body = chunks[1];
let max_width = header.width as usize - 1 - (2 * (!inline as usize));
let text_inline = format!("(filter): {}", self.filter);
let filter_text = if inline {
OverflowText::new(max_width, &text_inline)
} else {
OverflowText::new(max_width, &self.filter)
};
let filter_text_width = filter_text.width() as u16;
let mut filter_input = Paragraph::new(filter_text).style(Style::default().fg(theme.main));
if !inline {
filter_input = filter_input.block(Block::default().borders(Borders::ALL).title(" Filter "));
}
frame.render_widget(filter_input, header);
frame.set_cursor(
header.x + filter_text_width + (!inline as u16),
header.y + (!inline as u16),
);
let (commands, state) = self.commands.borrow();
let commands: Vec<ListItem> = commands
.iter()
.map(|c| {
let content = Spans::from(vec![
Span::raw(&c.cmd),
Span::styled(" # ", Style::default().fg(theme.secondary)),
Span::styled(&c.description, Style::default().fg(theme.secondary)),
]);
ListItem::new(content)
})
.collect();
let mut commands = List::new(commands)
.style(Style::default().fg(theme.main))
.highlight_style(
Style::default()
.bg(theme.selected_background)
.add_modifier(Modifier::BOLD),
)
.highlight_symbol(">> ");
if !inline {
commands = commands.block(
Block::default()
.border_style(Style::default().fg(theme.main))
.borders(Borders::ALL)
.title(" Commands "),
);
}
frame.render_stateful_widget(commands, body, state);
}
fn process_event(&mut self, event: Event) -> Result<Option<WidgetOutput>> {
if let Event::Key(key) = event {
let has_ctrl = key.modifiers.contains(KeyModifiers::CONTROL);
match key.code {
KeyCode::Char(c) if has_ctrl && c == 'd' => {
if let Some(cmd) = self.commands.delete_current() {
self.storage.delete_command(cmd.id)?;
}
}
KeyCode::Enter | KeyCode::Tab => {
if let Some(cmd) = self.commands.current_mut() {
cmd.increment_usage();
self.storage.update_command(cmd)?;
return Ok(Some(WidgetOutput::output(cmd.cmd.clone())));
} else if self.filter.is_empty() {
return Ok(Some(WidgetOutput::empty()));
} else {
return Ok(Some(WidgetOutput::output(self.filter.clone())));
}
}
KeyCode::Char(c) => {
self.filter.push(c);
self.commands.update_items(self.storage.find_commands(&self.filter)?);
}
KeyCode::Backspace => {
self.filter.pop();
self.commands.update_items(self.storage.find_commands(&self.filter)?);
}
KeyCode::Down => {
self.commands.next();
}
KeyCode::Up => {
self.commands.previous();
}
KeyCode::Esc => {
if self.filter.is_empty() {
return Ok(Some(WidgetOutput::empty()));
} else {
return Ok(Some(WidgetOutput::output(self.filter.clone())));
}
}
_ => (),
}
}
Ok(None)
}
}