keybr-tui 0.2.0

A terminal typing trainer inspired by keybr.com with adaptive learning
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use std::io::{self, stdout, Stdout};
use std::panic;

use crossterm::{
    execute,
    terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use ratatui::{backend::CrosstermBackend, Terminal};

/// Initialize the terminal: enable raw mode, enter alternate screen.
pub fn init() -> color_eyre::Result<Terminal<CrosstermBackend<Stdout>>> {
    install_panic_hook();
    enable_raw_mode()?;
    execute!(stdout(), EnterAlternateScreen)?;
    let backend = CrosstermBackend::new(stdout());
    let terminal = Terminal::new(backend)?;
    Ok(terminal)
}

/// Restore the terminal to its original state.
pub fn restore() -> color_eyre::Result<()> {
    disable_raw_mode()?;
    execute!(io::stdout(), LeaveAlternateScreen)?;
    Ok(())
}

/// Install a panic hook that restores the terminal before printing the panic.
fn install_panic_hook() {
    let original_hook = panic::take_hook();
    panic::set_hook(Box::new(move |info| {
        let _ = restore();
        original_hook(info);
    }));
}