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use std::{
error::Error,
io::{stdout, Stdout},
};
use crossterm::{
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
ExecutableCommand,
};
use rand::Rng;
use tokio::{
spawn,
sync::mpsc::{channel, Receiver, Sender},
};
use crate::event::{handle_input, Event};
pub const TICK_RATE: u64 = 1000 / 20;
pub struct App {
stdout: Stdout,
quote: Vec<String>,
pub event_tx: Sender<Event>,
event_rx: Receiver<Event>,
running: bool,
}
impl App {
pub fn new(quotes: &[Vec<String>]) -> App {
let mut rng = rand::thread_rng();
let chosen = rng.gen_range(0..quotes.len());
let (event_tx, event_rx): (Sender<Event>, Receiver<Event>) = channel(10);
App {
stdout: stdout(),
quote: quotes[chosen].clone(),
event_rx,
event_tx,
running: false,
}
}
pub async fn run(&mut self) -> Result<(), Box<dyn Error>> {
self.stdout.execute(EnterAlternateScreen)?;
enable_raw_mode()?;
let (ks_tx, ks_rx): (Sender<()>, Receiver<()>) = channel(1);
let ev = self.event_tx.clone();
spawn(async {
start_input_handler(ev, ks_rx).await;
});
self.running = true;
while self.running {
self.process().await?;
}
let _ = ks_tx.send(());
disable_raw_mode()?;
self.stdout.execute(LeaveAlternateScreen)?;
return Ok(());
}
async fn process(&mut self) -> Result<(), Box<dyn Error>> {
match self.event_rx.recv().await.unwrap() {
Event::Terminate => {
self.running = false;
}
Event::KeyPress(_) => todo!(),
Event::Backspace => todo!(),
}
return Ok(());
}
}
async fn start_input_handler(ev: Sender<Event>, mut kill_switch: Receiver<()>) {
loop {
tokio::select! {
_ = handle_input(&ev) => (),
_ = kill_switch.recv() => return,
}
}
}
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