src/developer/ffx/plugins/audio/list-devices/src/lib.rs

// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

use async_trait::async_trait;
use ffx_audio_common::ffxtool::{exposed_dir, optional_moniker};
use ffx_audio_device::{
    device_list_untagged,
    list::{get_devices, ListResult},
};
use ffx_audio_listdevices_args::ListDevicesCommand;
use fho::{FfxMain, FfxTool, MachineWriter};
use fidl_fuchsia_audio_device as fadevice;
use fidl_fuchsia_io as fio;

#[derive(FfxTool)]
pub struct ListDevicesTool {
    #[command]
    _cmd: ListDevicesCommand,
    #[with(exposed_dir("/bootstrap/devfs", "dev-class"))]
    dev_class: fio::DirectoryProxy,
    #[with(optional_moniker("/core/audio_device_registry"))]
    registry: Option<fadevice::RegistryProxy>,
}

fho::embedded_plugin!(ListDevicesTool);
#[async_trait(?Send)]
impl FfxMain for ListDevicesTool {
    type Writer = MachineWriter<ListResult>;

    async fn main(self, writer: Self::Writer) -> fho::Result<()> {
        let selectors = get_devices(&self.dev_class, self.registry.as_ref()).await?;
        device_list_untagged(selectors, writer)
    }
}