export

use superb::export::{self, Bounce, Stems};
use superb::primitives::buffers::PlanarBuffer;
use superb::primitives::io::wav::WavFormat;
use superb::primitives::session::TrackKind;
use superb::primitives::{Result, SampleRate, TimeDuration, TimePosition};
use superb::{clip, session, track};

fn main() -> Result<()> {
    let rate = SampleRate::HZ_48K;
    let mut session = session::create(std::env::temp_dir().join("bounce"), rate, 256)?;
    let lead = track::add(&mut session, "lead", TrackKind::Audio)?;
    let mut tone = PlanarBuffer::new(2, rate.hz() as usize);
    tone.fill(0.25);
    session.audio.insert("audio/tone.wav", tone);
    clip::add(&mut session, lead, "audio/tone.wav", TimePosition::ZERO)?;
    let layout = session::layout(&session);

    // The whole session, 16-bit, at the session's rate, into bounces/mix.wav.
    let audio = export::bounce(&mut session, layout.bounce("mix"), Bounce::default())?;
    println!("{} frames, peak {:.3}", audio.frames(), audio.peak());

    // A range, as 32-bit float, resampled to CD rate (feature `files`).
    export::bounce(&mut session, layout.bounce("chorus"), Bounce {
        start: TimePosition::from_seconds(0.25, rate),
        length: Some(TimeDuration::from_seconds(0.5, rate)),
        sample_rate: Some(SampleRate::CD),
        format: WavFormat::Float32,
    })?;

    // Every strip and the mix into stems/final/, with manifest.json.
    let set = export::stems(&mut session, "final", Stems::default())?;
    for stem in set.stems.iter().chain(std::iter::once(&set.mix)) {
        println!("{} → {}: {:?} LUFS", stem.file,
            stem.output.as_deref().unwrap_or("master"), stem.loudness_lufs);
    }
    Ok(())
}