use crate::core::*;

pub struct Mixer {
    pub name:            String,
    pub tracks:          Vec<MixerTrack>,
    pub selected_track:  usize,
    pub selected_column: usize,
}
//render!(Mixer = crate::view::mixer::render);
handle!(Mixer = crate::control::mixer::handle);
process!(Mixer = process);

impl Mixer {
    pub fn new (name: &str) -> Usually<Self> {
        let (client, _status) = Client::new(name, ClientOptions::NO_START_SERVER)?;
        Ok(Self {
            name: name.into(),
            selected_column: 0,
            selected_track:  1,
            tracks: vec![
                MixerTrack::new(&client, 1, "Mono 1")?,
                MixerTrack::new(&client, 1, "Mono 2")?,
                MixerTrack::new(&client, 2, "Stereo 1")?,
                MixerTrack::new(&client, 2, "Stereo 2")?,
                MixerTrack::new(&client, 2, "Stereo 3")?,
                MixerTrack::new(&client, 2, "Bus 1")?,
                MixerTrack::new(&client, 2, "Bus 2")?,
                MixerTrack::new(&client, 2, "Mix")?,
            ],
        })
    }
}

pub fn process (
    _: &mut Mixer,
    _: &Client,
    _: &ProcessScope
) -> Control {
    Control::Continue
}

pub struct MixerTrack {
    pub name:              String,
    pub channels:          u8,
    pub input_ports:       Vec<Port<AudioIn>>,
    pub pre_gain_meter:    f64,
    pub gain:              f64,
    pub insert_ports:      Vec<Port<AudioOut>>,
    pub return_ports:      Vec<Port<AudioIn>>,
    pub post_gain_meter:   f64,
    pub post_insert_meter: f64,
    pub level:             f64,
    pub pan:               f64,
    pub output_ports:      Vec<Port<AudioOut>>,
    pub post_fader_meter:  f64,
    pub route:             String,
}

impl MixerTrack {
    pub fn new (jack: &Client, channels: u8, name: &str) -> Usually<Self> {
        let mut input_ports  = vec![];
        let mut insert_ports = vec![];
        let mut return_ports = vec![];
        let mut output_ports = vec![];
        for channel in 1..=channels {
            input_ports.push(jack.register_port(&format!("{name} [input {channel}]"),   AudioIn::default())?);
            output_ports.push(jack.register_port(&format!("{name} [out {channel}]"),    AudioOut::default())?);
            let insert_port = jack.register_port(&format!("{name} [pre {channel}]"),    AudioOut::default())?;
            let return_port = jack.register_port(&format!("{name} [insert {channel}]"), AudioIn::default())?;
            jack.connect_ports(&insert_port, &return_port)?;
            insert_ports.push(insert_port);
            return_ports.push(return_port);
        }
        Ok(Self {
            name:              name.into(),
            channels,
            input_ports,
            pre_gain_meter:    0.0,
            gain:              0.0,
            post_gain_meter:   0.0,
            insert_ports,
            return_ports,
            post_insert_meter: 0.0,
            level:             0.0,
            pan:               0.0,
            post_fader_meter:  0.0,
            route:             "---".into(),
            output_ports,
        })
    }
}

//impl<W: Write> Input<TUI<W>, bool> for Mixer {
    //fn handle (&mut self, engine: &mut TUI<W>) -> Result<Option<bool>> {
        //Ok(None)
    //}
//

//impl<W: Write> Output<TUI<W>, [u16;2]> for Mixer {
    //fn render (&self, envine: &mut TUI<W>) -> Result<Option<[u16;2]>> {

        //let tracks_table = Columns::new()
            //.add(titles)
            //.add(input_meters)
            //.add(gains)
            //.add(gain_meters)
            //.add(pres)
            //.add(pre_meters)
            //.add(levels)
            //.add(pans)
            //.add(pan_meters)
            //.add(posts)
            //.add(routes)

        //Rows::new()
            //.add(Columns::new()
                //.add(Rows::new()
                    //.add("[Arrows]".bold())
                    //.add("Navigate"))
                //.add(Rows::new()
                    //.add("[+/-]".bold())
                    //.add("Adjust"))
                //.add(Rows::new()
                    //.add("[Ins/Del]".bold())
                    //.add("Add/remove track")))
            //.add(tracks_table)
            //.render(engine)
    //}
//}