mod handle;
mod jack;
mod render;
pub use self::handle::*;
pub use self::jack::*;
pub use self::render::*;
use crate::prelude::*;

pub const ACTIONS: [(&'static str, &'static str);3] = [
    ("(Shift-)Tab",   "Switch pane"),
    ("Arrows",        "Navigate"),
    ("(Shift-)Space", "⯈ Play/pause"),
];

pub struct Transport {
    exited:    bool,
    title:     String,
    transport: ::jack::Transport,
}

impl Transport {
    pub fn new (client: &Client) -> Result<Self, Box<dyn Error>> {
        Ok(Self {
            exited:    false,
            title:     String::from("Untitled project"),
            transport: client.transport(),
        })
    }

    pub fn play_from_start_or_stop_and_rewind (&mut self) {
    }

    pub fn play_or_pause (&mut self) -> Result<(), Box<dyn Error>> {
        match self.transport.query_state()? {
            TransportState::Stopped => self.play(),
            TransportState::Rolling => self.stop(),
            _ => Ok(())
        }
    }

    pub fn play (&mut self) -> Result<(), Box<dyn Error>> {
        Ok(self.transport.start()?)
    }

    pub fn stop (&mut self) -> Result<(), Box<dyn Error>> {
        Ok(self.transport.stop()?)
    }
}

impl Exitable for Transport {
    fn exit (&mut self) {
        self.exited = true
    }
    fn exited (&self) -> bool {
        self.exited
    }
}