use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
use std::sync::{Arc, Mutex};

pub fn play_audio(signal: &[f32]) -> Result<(), Box<dyn std::error::Error>> {
    let host = cpal::default_host();
    let device = host.default_output_device().ok_or("No output device found")?;
    let config = device.default_output_config()?.config();

    let signal = Arc::new(Mutex::new(signal.to_vec()));
    let singal_clone = Arc::clone(&signal);
    let mut index = 0;

    let stream = device.build_output_stream(
        &config,
        move |data: &mut [f32], _: &cpal::OutputCallbackInfo| {
            let signal = singal_clone.lock().unwrap();

            for sample in data.iter_mut() {
                *sample = if index < signal.len() {
                    signal[index]
                } else {
                    0.0
                };
                index += 1;
            }
        },
        |err| eprintln!("Error: {:?}", err),
        None
    )?;

    stream.play()?;
    std::thread::sleep(std::time::Duration::from_secs(1));
    Ok(())
}