// Config
import {getDeviceID} from '../utilities/configHandler.js'
// Modules
import portAudio from 'naudiodon';
// Debug
import ModuleDebugBuilder from "../utilities/moduleDebugBuilder.js";
const log = new ModuleDebugBuilder("bot", "audioController");

/**
 * Checks to make sure the selected audio device is available and returns the device object (PortAudio Device Info)
 * At least one option must be supplied, it will prefer ID to device name
 *
 * @param deviceName The name of the device being queried
 * @param deviceId The ID of the device being queried
 * @returns {unknown}
 */
export function confirmAudioDevice({deviceName = undefined, deviceId = undefined}){
    const deviceList = getAudioDevices();
    if (!deviceName && !deviceId) throw new Error("No device given");
    if (deviceId) return deviceList.find(device => device.id === deviceId);
    if (deviceName) return deviceList.find(device => device.name === deviceName);
}

/**
 * Return a list of the audio devices connected with input channels
 *
 * @returns {unknown[]}
 */
export function getAudioDevices(){
    const deviceList = portAudio.getDevices().map((device) => {
        if (device.defaultSampleRate === 48000 || device.maxInputChannels > 0) {
            return device;
        }
        else {
            return null;
        }
    }).filter(Boolean);
    log.DEBUG("Device List: ", deviceList);
    return deviceList;
}

/**
 * Create and return the audio instance from the saved settings
 * TODO Allow the client to save and load these settings dynamically
 *
 * @returns new portAudio.AudioIO
 */
export function createAudioInstance() {
    const selectedDevice = confirmAudioDevice({deviceId: getDeviceID()});//{deviceName: "VoiceMeeter VAIO3 Output (VB-Au"});
    log.DEBUG("Device selected from config: ", selectedDevice);
    // Create an instance of AudioIO with outOptions (defaults are as below), which will return a WritableStream
    return new portAudio.AudioIO({
        inOptions: {
            channelCount: 2,
            sampleFormat: portAudio.SampleFormat16Bit,
            sampleRate: 48000,
            deviceId: selectedDevice.id, // Use -1 or omit the deviceId to select the default device
            closeOnError: true, // Close the stream if an audio error is detected, if set false then just log the error
            framesPerBuffer: 100, //(48000 / 1000) * 20, //(48000 * 16 * 2) / 1000 * 20 // (48000 * (16 / 8) * 2) / 60 / 1000 * 20  //0.025 * 48000 / 2
            highwaterMark: 3840
        },
    });
}