ruscode 1.0.0

ruscode - A visual studio code's workspaces organizer written in Rust
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use crate::application::app::App;
use crate::presentation::ui;
use crossterm::{
    event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
    execute,
    terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use std::{
    error::Error,
    io,
    time::{Duration, Instant},
};
use tui::{
    backend::{Backend, CrosstermBackend},
    Terminal,
};

pub fn run(show_splash_screen: bool) -> Result<(), Box<dyn Error>> {
    // 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 ruscode app and run it
    let app = App::new(" Ruscode ", show_splash_screen);
    let res = run_app(&mut terminal, 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: Backend>(terminal: &mut Terminal<B>, mut app: App) -> io::Result<()> {
    let mut last_tick = Instant::now();
    loop {
        match app.status {
            // Exit the app without any error
            super::app::ApplicationStatus::Quit => {
                return Ok(());
            }
            super::app::ApplicationStatus::Running => {
                terminal.draw(|f| ui::draw(f, &mut app))?;

                if crossterm::event::poll(Duration::from_secs(0))? {
                    if let Event::Key(key) = event::read()? {
                        match key.code {
                            KeyCode::Esc => app.on_escape_application(),
                            KeyCode::Tab => app.next_tab(),
                            KeyCode::Up => app.on_up_list(),
                            KeyCode::Down => app.on_down_list(),
                            KeyCode::Right => app.enter_detail_mode(),
                            KeyCode::Left => app.enter_search_mode(),
                            KeyCode::Char(c) => app.on_key(c),
                            KeyCode::Enter => app.on_enter(),
                            KeyCode::Backspace => app.on_backspace(),
                            _ => {}
                        }
                    }
                }
            }
            super::app::ApplicationStatus::SplashScreenReveal => {
                terminal.draw(|f| ui::draw(f, &mut app))?;
                if last_tick.elapsed() >= Duration::from_secs(1) {
                    app.state_change(super::app::ApplicationStatus::Running)
                }
            }
            super::app::ApplicationStatus::PrepareEnvironment => match app.init_environment() {
                Ok(()) => {
                    if app.show_splash_screen {
                        last_tick = Instant::now();
                        app.state_change(super::app::ApplicationStatus::SplashScreenReveal);
                    } else {
                        app.state_change(super::app::ApplicationStatus::Running)
                    }
                }
                Err(_) => panic!("Fail to prepare environment!"),
            },
        }
    }
}