use notify::RecommendedWatcher;
use std::sync::Arc;
use std::sync::Mutex;

pub struct WatcherState {
    watcher: Option<RecommendedWatcher>,
}

impl WatcherState {
    pub fn new() -> Self {
        Self { watcher: None }
    }

    pub fn set_watcher(&mut self, watcher: RecommendedWatcher) {
        self.watcher = Some(watcher);
    }

    pub fn clear_watcher(&mut self) {
        self.watcher = None;
    }
}

pub type SharedWatcherState = Arc<Mutex<WatcherState>>;

pub fn new_shared_watcher_state() -> SharedWatcherState {
    Arc::new(Mutex::new(WatcherState::new()))
}