ballista-cli 53.0.0

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

use crate::tui::TuiResult;
use crossterm::{
    execute,
    terminal::{
        EnterAlternateScreen, LeaveAlternateScreen, disable_raw_mode, enable_raw_mode,
    },
};
use ratatui::{Terminal, backend::CrosstermBackend};
use std::io::{self, Stdout};

pub type Tui = Terminal<CrosstermBackend<Stdout>>;

fn init() -> TuiResult<Tui> {
    execute!(io::stdout(), EnterAlternateScreen)?;
    enable_raw_mode()?;
    let backend = CrosstermBackend::new(io::stdout());
    let mut terminal = Terminal::new(backend)?;
    terminal.hide_cursor()?;
    terminal.clear()?;

    let original_hook = std::panic::take_hook();
    std::panic::set_hook(Box::new(move |panic_info| {
        let _ = restore();
        original_hook(panic_info);
    }));

    Ok(terminal)
}

fn restore() -> TuiResult<()> {
    execute!(io::stdout(), LeaveAlternateScreen)?;
    disable_raw_mode()?;
    Ok(())
}

pub struct TuiWrapper {
    pub terminal: Tui,
}

impl TuiWrapper {
    pub fn new() -> TuiResult<Self> {
        Ok(Self { terminal: init()? })
    }
}

impl Drop for TuiWrapper {
    fn drop(&mut self) {
        let _ = restore();
    }
}