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use std::io::{
BufferedReader,
TcpStream,
IoError
};
use std::sync::Arc;
use std::sync::Mutex;
use callback::Callback;
use event;
use event::Event;
#[deriving(Show, PartialEq, Eq, Clone)]
pub enum Failure {
AlreadyConnected,
NotConnected,
Io(IoError)
}
#[deriving(Clone)]
pub struct Server {
stream: Arc<Mutex<Option<TcpStream>>>,
pub events: Arc<Mutex<Callback<(Server, Event)>>>,
}
impl Server {
pub fn new() -> Server {
Server {
stream: Arc::new(Mutex::new(None)),
events: {
let mut c = Callback::new();
c.register(&Server::handle_event);
Arc::new(Mutex::new(c))
}
}
}
fn handle_event(arg: (Server, Event)) {
let (mut server, event) = arg;
match event.command[] {
event::PING => {
server.sendraw(format!("PONG {}", event.content).as_slice(), true).unwrap();
}
_ => ()
}
}
pub fn connect(&mut self, host: String, port: u16) -> Result<(), Failure> {
let mut s = self.stream.lock();
match *s { Some(_) => return Err(AlreadyConnected), _ => () };
*s = match TcpStream::connect(host.as_slice(), port) {
Ok(tcp) => Some(tcp),
Err(e) => return Err(Io(e))
};
Ok(())
}
#[inline]
fn sendraw(&mut self, s: &str, newline: bool) -> Result<(), Failure> {
println!("{}", s);
let mut locked_stream = self.stream.lock();
if locked_stream.is_some() {
locked_stream.as_mut().map(|stream| {
match stream.write_str(s) {
Ok(_) => match { if newline { stream.write_str("\r\n") } else { Ok(()) } } {
Ok(_) => match stream.flush() {
Ok(_) => Ok(()),
Err(e) => return Err(Io(e))
},
Err(e) => return Err(Io(e))
},
Err(e) => return Err(Io(e))
}
}).unwrap()
} else {
Err(NotConnected)
}
}
pub fn join(&mut self, channel: &str) -> Result<(), Failure> {
self.sendraw(format!("JOIN {}", channel).as_slice(), true)
}
pub fn nick(&mut self, nick: &str) -> Result<(), Failure> {
self.sendraw(format!("NICK {}", nick).as_slice(), true)
}
pub fn user(&mut self, username: &str, hostname: &str, servername: &str, realname: &str) -> Result<(), Failure> {
self.sendraw(format!("USER {} {} {} :{}", username, hostname, servername, realname).as_slice(), true)
}
pub fn password(&mut self, password: &str) -> Result<(), Failure> {
self.sendraw(format!("PASS {}", password).as_slice(), true)
}
pub fn msg(&mut self, target: &str, message: &str) -> Result<(), Failure> {
self.sendraw(format!("PRIVMSG {} :{}", target, message).as_slice(), true)
}
pub fn listen(&mut self) -> Result<(), Failure> {
let stream = {
let lock = self.stream.lock();
match *lock {
Some(ref s) => s.clone(),
None => return Err(NotConnected)
}
};
let mut reader = BufferedReader::new(stream);
loop {
let line = reader.read_line().unwrap();
let mut parts = line.as_slice().split(' ').collect::<Vec<&str>>();
println!("{}", parts);
if parts.len() == 0 {
continue;
}
// if message has a prefix
let prefix = if parts[0].chars().next().unwrap() == ':' {
parts.remove(0).unwrap()
} else { "" };
let cmd = parts.remove(0).unwrap();
let event = Event {
prefix: prefix.into_string(),
command: cmd.into_string(),
content: parts.iter().map(|p| p.into_string()).collect()
};
self.events.lock().fire(&(self.clone(), event));
}
}
}
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