use cpal::{
    traits::{DeviceTrait, HostTrait, StreamTrait},
    Sample, StreamConfig,
};
use miette::miette;
use tracing::info;

use super::error::EleanorError;

pub fn init_audio() -> Result<StreamConfig, EleanorError> {
    let host = cpal::default_host();
    let device = host.default_output_device().ok_or(
        miette!("Failed to initialize audio output").context("No output device is available"),
    )?;

    let output_cfg: StreamConfig = device.default_output_config()?.into();

    info!(
        "Starting audio output stream... (Sample Rate: {}Hz, Channels: {})",
        &output_cfg.sample_rate.0, &output_cfg.channels
    );

    let stream = device
        .build_output_stream(
            &output_cfg,
            move |data: &mut [f32], _: &cpal::OutputCallbackInfo| {
                for sample in data.iter_mut() {
                    *sample = Sample::EQUILIBRIUM;
                }
            },
            move |_err| {},
            None,
        )
        .unwrap();

    stream.play().unwrap();

    loop {}

    Ok(output_cfg)
}