use std::net::TcpListener;
use std::thread;
use tungstenite::accept;
use crate::util::pattern;

pub fn websocket(pattern: &mut Vec<Box<dyn pattern::Pattern>>) {
    let server = TcpListener::bind("0.0.0.0:29999").unwrap();
    for stream in server.incoming() {
        thread::spawn (move || {
            let mut websocket = accept(stream.unwrap()).unwrap();
            loop {
                let input = websocket.read_message().unwrap();
                if input.is_text() {
                    let string = input.to_text().unwrap_or("unit");
                    let mul_string = pattern::format_multiline(string);
                    match mul_string.iter().cloned().map(pattern::parse_line).collect() {
                        Ok(patterns) => { 
                            *pattern = patterns;
                            let text = format!("Ok!\n\n{}", string);
                            let msg = tungstenite::Message::from(text);
                            websocket.write_message(msg).unwrap();
                        }
                        Err(err) => {
                            println!("ret err {:?}", err);
                            let msg = tungstenite::Message::from(err.to_string());
                            websocket.write_message(msg).unwrap();
                        }
                    }
                }
                else {
                    let msg = tungstenite::Message::from("Not text");
                    websocket.write_message(msg).unwrap();
                }
            }
        });
    }
}