// Modules
const { promisify } = require('util');
const { exec } = require("child_process");
// Debug
const { DebugBuilder } = require("../utilities/debugBuilder.js");
// Global Vars
const log = new DebugBuilder("client-bot", "executeConsoleCommands");
const execCommand = promisify(exec);


exports.executeAsyncConsoleCommand = async function executeAsyncConsoleCommand(consoleCommand) {
    // Check to see if the command is a real command
    // TODO needs to be improved
    const acceptableCommands = [ "arecord -L" ];
    if (!acceptableCommands.includes(consoleCommand)) {
        log.WARN("Console command is not acceptable: ", consoleCommand);        
        return undefined;
    }
    log.DEBUG("Running console command: ", consoleCommand);

    const tempOutput = await execCommand(consoleCommand);
    const output = tempOutput.stdout.trim();

    log.DEBUG("Executed Console Command Response: ", output)

    // TODO add some error checking
    return output;
}

exports.returnAlsaDeviceObject = async function returnAlsaDeviceObject() {
    const listAlsaDevicesCommand = "arecord -L";
    const commandResponse = await executeAsyncConsoleCommand(listAlsaDevicesCommand);
    const brokenCommand = String(commandResponse).split('\n');
    var devices = [];
    var i = 0;
    
    for (const responseLine of brokenCommand) {
        if (String(responseLine) && !String(responseLine).match(/^\s/g)) {
            const tempDevice = {
                id: i,
                name: responseLine
            }
            devices.push(tempDevice);
            i += 1;
        }
    }    

    return devices;
}