//! Print an ASCII preview of a file's waveform shape.
//!   cargo run -p player --example wf -- "C:\path\to\file.flac"

fn main() {
    let path = std::path::PathBuf::from(std::env::args().nth(1).expect("usage: wf <file>"));
    let t = std::time::Instant::now();
    let peaks = player::compute_waveform(&path, 80);
    println!("{} buckets in {:?}", peaks.len(), t.elapsed());
    let glyphs = [' ', '▁', '▂', '▃', '▄', '▅', '▆', '▇', '█'];
    let bars: String = peaks
        .iter()
        .map(|&v| glyphs[((v * 8.0) as usize).min(8)])
        .collect();
    println!("{bars}");
    let flat = peaks.iter().filter(|&&v| v > 0.95).count();
    println!("buckets >0.95: {flat}/{}", peaks.len());
}