extern crate mpd;

use comm;
use comm::Channel;
use config::Config;
use self::mpd::client::Client;
use self::mpd::song::Song;
use self::mpd::idle;
use self::mpd::idle::Idle;
use self::mpd::status::State;

pub fn music(tx: &Channel, _cfg: &Config) {
    let mut conn = Client::connect("127.0.0.1:6600").unwrap();
    loop {
        let state = match conn.status().unwrap().state {
            State::Play => "",
            State::Pause => "",
            State::Stop => ""
        };

        let song = conn.currentsong().unwrap();
        let stopped = "Stopped".to_string();
        let display = song.as_ref().map(get_display).unwrap_or(stopped);
        comm::send(tx, "mpd", &format!("{{\"name\":\"mpd\",\"separator\":false,\"markup\":\"pango\",\"align\":\"left\",\"full_text\":\"<span face=\\\"Ionicons\\\">{}</span> {}\"}}", state, display));
        conn.wait(&[idle::Subsystem::Player]).ok();
    }
}

fn get_display(song: &Song) -> String {
    let unknown = "Unknown".to_string();
    let artist = song.tags.get("Artist").unwrap_or(&unknown);
    let title = song.title.as_ref().unwrap_or(&unknown);

    format!("{} - {}", artist, title)
}