waveformchart 0.1.0

mod app;

use std::io;
use anyhow::Result;
use crossterm::{
    event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
    execute,
    terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use ratatui::{backend::CrosstermBackend, Terminal};

use crate::app::App;

fn main() -> Result<()> {
    // Setup terminal
    enable_raw_mode()?;
    let mut stdout = io::stdout();
    execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
    let backend = CrosstermBackend::new(stdout);
    let mut terminal = Terminal::new(backend)?;

    // Create app
    let mut app = App::new();

    // Run loop
    let res = run_app(&mut terminal, &mut app);

    // Restore terminal
    disable_raw_mode()?;
    execute!(
        terminal.backend_mut(),
        LeaveAlternateScreen,
        DisableMouseCapture
    )?;
    terminal.show_cursor()?;

    if let Err(err) = res {
        println!("{:?}", err);
    }

    Ok(())
}

fn run_app<B: ratatui::backend::Backend>(terminal: &mut Terminal<B>, app: &mut App) -> Result<()> {
    loop {
        terminal.draw(|f| app.draw::<B>(f))?;

        if event::poll(app.tick_rate)? {
            if let event::Event::Key(key) = event::read()? {
                // Pass key event to app
                app.handle_event(event::Event::Key(key))?;
            }
        }

        if !app.running {
            return Ok(());
        }

        // Check if it's time to tick
        if app.last_tick.elapsed() >= app.tick_rate {
            app.on_tick();
            app.last_tick = std::time::Instant::now();
        }
    }
}