use tek::*;
use clap::{self, Parser, Subcommand};
#[derive(Debug, Parser)]
#[command(version, about, long_about = None)]
pub struct TekCli {
    /// Which app to initialize
    #[command(subcommand)] mode: TekMode,
    /// Name of JACK client
    #[arg(short='n', long)] name: Option<String>,
    /// Whether to attempt to become transport master
    #[arg(short='S', long, default_value_t = false)] sync_lead: bool,
    /// Whether to sync to external transport master
    #[arg(short='s', long, default_value_t = true)] sync_follow: bool,
    /// Initial tempo in beats per minute
    #[arg(short='b', long, default_value = None)] bpm: Option<f64>,
    /// Whether to include a transport toolbar (default: true)
    #[arg(short='t', long, default_value_t = true)] show_clock: bool,
    /// MIDI outs to connect to (multiple instances accepted)
    #[arg(short='I', long)] midi_from: Vec<String>,
    /// MIDI outs to connect to (multiple instances accepted)
    #[arg(short='i', long)] midi_from_re: Vec<String>,
    /// MIDI ins to connect to (multiple instances accepted)
    #[arg(short='O', long)] midi_to: Vec<String>,
    /// MIDI ins to connect to (multiple instances accepted)
    #[arg(short='o', long)] midi_to_re: Vec<String>,
    /// Audio outs to connect to left input
    #[arg(short='l', long)] left_from: Vec<String>,
    /// Audio outs to connect to right input
    #[arg(short='r', long)] right_from: Vec<String>,
    /// Audio ins to connect from left output
    #[arg(short='L', long)] left_to: Vec<String>,
    /// Audio ins to connect from right output
    #[arg(short='R', long)] right_to: Vec<String>,
}
#[derive(Debug, Clone, Subcommand)] pub enum TekMode {
    /// A standalone transport clock.
    Clock,
    /// A MIDI sequencer.
    Sequencer,
    /// A MIDI-controlled audio sampler.
    Sampler,
    /// Sequencer and sampler together.12
    Groovebox,
    /// Multi-track MIDI sequencer.
    Arranger {
        /// Number of scenes
        #[arg(short = 'y', long, default_value_t = 1)] scenes:      usize,
        /// Number of tracks
        #[arg(short = 'x', long, default_value_t = 1)] tracks:      usize,
        /// Width of tracks
        #[arg(short = 'w', long, default_value_t = 9)] track_width: usize,
    },
    /// TODO: A MIDI-controlled audio mixer
    Mixer,
    /// TODO: A customizable channel strip
    Track,
    /// TODO: An audio plugin host
    Plugin,
}
/// Application entrypoint.
pub fn main () -> Usually<()> {
    let cli         = TekCli::parse();
    let name        = cli.name.as_ref().map_or("tek", |x|x.as_str());
    //let color       = ItemPalette::random();
    let jack        = JackConnection::new(name)?;
    let engine      = Tui::new()?;
    let empty       = &[] as &[&str];
    let midi_froms  = PortConnection::collect(&cli.midi_from,  &cli.midi_from_re, empty);
    let midi_tos    = PortConnection::collect(&cli.midi_to,    &cli.midi_to_re,   empty);
    let left_froms  = PortConnection::collect(&cli.left_from,  empty, empty);
    let left_tos    = PortConnection::collect(&cli.left_to,    empty, empty);
    let right_froms = PortConnection::collect(&cli.right_from, empty, empty);
    let right_tos   = PortConnection::collect(&cli.right_to,   empty, empty);
    let audio_froms = &[left_froms.as_slice(), right_froms.as_slice()];
    let audio_tos   = &[left_tos.as_slice(),   right_tos.as_slice()  ];
    Ok(match cli.mode {
        TekMode::Clock =>
            engine.run(&jack.activate_with(|jack|App::clock(
                jack, cli.bpm))?)?,
        TekMode::Sequencer =>
            engine.run(&jack.activate_with(|jack|App::sequencer(
                jack, cli.bpm, &midi_froms, &midi_tos))?)?,
        TekMode::Groovebox =>
            engine.run(&jack.activate_with(|jack|App::groovebox(
                jack, cli.bpm, &midi_froms, &midi_tos, &audio_froms, &audio_tos))?)?,
        TekMode::Arranger { scenes, tracks, track_width, .. } =>
            engine.run(&jack.activate_with(|jack|App::arranger(
                jack, cli.bpm, &midi_froms, &midi_tos, &audio_froms, &audio_tos,
                scenes, tracks, track_width,
            ))?)?,
        //TekMode::Sampler => engine.run(&jack.activate_with(|jack|Ok(
            //SamplerTui {
                //cursor: (0, 0),
                //editing: None,
                //mode:    None,
                //note_lo: 36.into(),
                //note_pt: 36.into(),
                //size:    Measure::new(),
                //state:   Sampler::new(jack, &"sampler", &midi_froms,
                    //&[&left_froms, &right_froms],
                    //&[&left_tos, &right_tos])?,
                //color,
            //}
        //))?)?,
        _ => todo!()
    })
}
#[test] fn verify_cli () {
    use clap::CommandFactory;
    TekCli::command().debug_assert();
}