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use std::sync::Arc;
use tokio::io::*;
use tokio::net::TcpStream;
use super::events::*;
use super::commands::Command;
pub fn event_handler<F>(f: F) -> Box<dyn FnMut(Event)>
where F: FnMut(Event) + 'static
{
Box::new(f)
}
pub struct FlicClient {
reader: Arc<TcpStream>,
writer: Arc<TcpStream>,
map: Vec<Box<dyn FnMut(Event)>>,
is_running: bool,
}
impl FlicClient {
pub async fn new(conn: &str) -> Result<FlicClient> {
match TcpStream::connect(conn).await {
Ok(stream) => {
let reader = Arc::new(stream);
let writer = reader.clone();
Ok(FlicClient{
reader,
writer,
map: vec![],
is_running: true,
})
}
Err(err) => Err(err)
}
}
pub fn register_event_handler(mut self, event: Box<dyn FnMut(Event)>) -> Self {
self.map.push(event);
self
}
pub async fn listen(&mut self) {
while self.is_running {
if let Some(mut r) = Arc::get_mut(&mut self.reader) {
if let Ok(value) = r.read_u8().await {
for ref mut f in self.map.as_mut_slice() {
f(Event::read_event(value, &mut r));
}
}
}
}
}
pub fn stop(&mut self) {
self.is_running = false;
}
pub fn submit(&mut self, cmd: Command) -> Result<()> {
if let Some(mut w) = Arc::get_mut(&mut self.writer) {
cmd.write_command(&mut w)?;
}
Ok(())
}
}
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