/*
 * This file is part of espanso.
 *
 * Copyright (C) 2019-2021 Federico Terzi
 *
 * espanso is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * espanso is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with espanso.  If not, see <https://www.gnu.org/licenses/>.
 */

use std::path::Path;

use anyhow::Result;
use crossbeam::channel::Sender;
use espanso_ipc::{EventHandlerResponse, IPCServer};
use log::{error, warn};

use crate::{exit_code::DAEMON_SUCCESS, ipc::IPCEvent};

pub fn initialize_and_spawn(runtime_dir: &Path, exit_notify: Sender<i32>) -> Result<()> {
    let server = crate::ipc::create_daemon_ipc_server(runtime_dir)?;

    std::thread::Builder::new()
        .name("daemon-ipc-handler".to_string())
        .spawn(move || {
            server
                .run(Box::new(move |event| match event {
                    IPCEvent::Exit => {
                        if let Err(err) = exit_notify.send(DAEMON_SUCCESS) {
                            error!(
                "experienced error while sending exit signal from daemon ipc handler: {err}"
              );
                        }

                        EventHandlerResponse::NoResponse
                    }
                    unexpected_event => {
                        warn!(
                            "received unexpected event in daemon ipc handler: {unexpected_event:?}"
                        );

                        EventHandlerResponse::NoResponse
                    }
                }))
                .expect("unable to start IPC handler");
        })?;

    Ok(())
}
