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use crossterm::event::Event;
use eyre::Result;
use std::time::Duration;
use crate::app_action::AppAction;
use crate::app_event::AppEvent;
use crate::component::Component;
use crate::components;
use crate::keys::key_commands::KeyCommand;
use crate::tui;
pub struct App {
pub tui: tui::Tui,
pub tick_rate: Duration,
pub components: Vec<Box<dyn Component>>,
pub key_commands: Vec<KeyCommand>,
should_quit: bool,
}
impl App {
pub fn new(tick_rate: Duration) -> Result<Self> {
let tui = tui::init()?;
let key_commands = vec![
KeyCommand {
key_code: "q".to_string(),
description: "Quit molehole".to_string(),
action: Some(AppAction::Quit),
},
KeyCommand {
key_code: "g".to_string(),
description: "Scroll to top".to_string(),
action: None,
},
KeyCommand {
key_code: "G".to_string(),
description: "Scroll to bottom".to_string(),
action: None,
},
KeyCommand {
key_code: "k".to_string(),
description: "Scroll up one line".to_string(),
action: None,
},
KeyCommand {
key_code: "j".to_string(),
description: "Scroll down one line".to_string(),
action: None,
},
];
let global_keys = components::global_keys::GlobalKeys {
key_commands: key_commands.clone(),
..Default::default()
};
Ok(Self {
tui,
tick_rate,
components: vec![Box::new(global_keys)],
key_commands,
should_quit: false,
})
}
pub fn run(&mut self) -> Result<()> {
for component in &mut self.components {
component.init()?;
}
loop {
if self.should_quit {
break Ok(());
}
self.draw()?;
}
}
pub fn draw(&mut self) -> Result<()> {
let event: Option<AppEvent> = match tui::get_event(self.tick_rate)? {
Some(event) => match event {
Event::Key(key) => Some(AppEvent::Key(key)),
Event::Mouse(mouse) => Some(AppEvent::Mouse(mouse)),
Event::FocusGained => todo!(),
Event::FocusLost => todo!(),
Event::Paste(_) => todo!(),
Event::Resize(_, _) => todo!(),
},
None => None,
};
if let Some(event) = event {
let mut actions: Vec<AppAction> = vec![];
for component in &mut self.components {
if let Some(action) = component.handle_event(event)? {
actions.push(action);
}
}
for action in actions {
self.handle_action(action)?;
}
}
if self.should_quit {
return Ok(());
}
self.tui.draw(|frame| {
for component in &mut self.components {
let _ = component.render(frame, frame.size());
}
})?;
Ok(())
}
pub fn quit(&mut self) -> Result<()> {
tui::restore()?;
self.should_quit = true;
Ok(())
}
fn handle_action(&mut self, action: AppAction) -> Result<()> {
match action {
AppAction::Quit => Ok(self.quit()?),
}
}
}
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