Program.cs

using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using OSCLock.Bluetooth;
using OSCLock.Configs;
using OSCLock.Logic;
using System.IO;
using FluentColorConsole;
using VRC.OSCQuery;

namespace OSCLock {
    internal class Program {
        public static bool isAllowedToUnlock = false;
        public static bool isEncrypted = false;
        public static string appPassword = "";

        public static async Task Main(string[] args) {

            Console.WriteLine("OSCLock Version v1.0\n");

            if (File.Exists("app.pass"))
            {
                isEncrypted = true;
                //VERY Secure app password, I know. It's not meant to be real, this is just fun security theater. 
                appPassword = Encryption.Read("app.pass", "7b7079bb6379001dce"); 
                Console.WriteLine("Application Config is encrypted.\n");
                //Console.WriteLine(appPassword);
            }

            VRChatConnector.Start();
            //Console.WriteLine("Going to home screen...");
            //Thread.Sleep(500);

            //Delay for reading the config readout if in debug mode.
            if (VRChatConnector.debugging) Thread.Sleep(1500);

            await CmdPrompt();
        }


        public static async Task PrintHelp() {
            Console.WriteLine("■■■■■■■ HELP SCREEN ■■■■■■■");
            

            Console.WriteLine("  H -- Prints this menu");
            Console.WriteLine("  T -- Starts a new timer");
            Console.WriteLine("  S -- Status of app & lock");
            Console.WriteLine("  U -- Unlock device");
            Console.WriteLine("  Q -- Quits the app");
            if (isEncrypted) Console.WriteLine("  } -- Decrypts files");

            //Decided to not inform the user about accessing encryption, since it's documented in the readme.
            //if (!isEncrypted)  Console.WriteLine("{ -- Encrypts Config & Timer files\n");
            //else Console.WriteLine("} -- Decrypts Config & Timer filesu\n");

            //Bumper
            Console.WriteLine("");
        }

        private static async Task PrintStatus() {
            var appConfig = ConfigManager.ApplicationConfig;
            Console.WriteLine($"Operating in {appConfig.mode} mode.");

            if (appConfig.mode == ApplicationMode.Timer) {
                Console.WriteLine("Time left: " + (int)OSCTimer.GetTimeLeftTotal() + " minutes \n");
            }

            await PrintHelp();

            //Console.WriteLine("Allowed to unlock: " + isAllowedToUnlock + "\n");
        }

        private static ESmartLock connectedLock;
        public static async Task UnlockDevice() {
            if (!isAllowedToUnlock) {
                ColorConsole.WithYellowText.WriteLine("You are not allowed to unlock yet!\n");

                if (isEncrypted && OSCTimer.HasTimeElapsed()) {
                    ColorConsole.WithYellowText.WriteLine("Encryption requires a complete timer to allow unlocking.");
                    Thread.Sleep(1500);
                    Console.Clear();
                    await PrintHelp();
                }
                
                else await PrintStatus();
                return;
            }

            if (connectedLock == null) {
                Console.WriteLine("You are not connected to a lock yet, starting bluetooth scanner\n");
                connectedLock = await BleScanner.FindESmartLock();
            }
            
            Console.WriteLine("Found device");
            
            //todo: Attempt unlock here
            await connectedLock.Unlock();
            
            Console.WriteLine("Removing lock as it turned of by now\n");
            connectedLock = null;

            Thread.Sleep(1500);
            Console.Clear();
            await PrintHelp();
        }

        private static async Task StartTimer() {
            if (ConfigManager.ApplicationConfig.mode == ApplicationMode.Timer) {
                await OSCTimer.Start();
            } else ColorConsole.WithYellowText.WriteLine("Not operating in timer mode, change mode in config and restart");
        }

        private static async Task EncryptApp() { 

            //if OSCTimer.HasTimeElapsed is false, don't allow encryption
            if (!OSCTimer.HasTimeElapsed()) {
                ColorConsole.WithYellowText.WriteLine("A timer is already running, you need to finish that before attempting encryption.\n");
                await PrintHelp();
                return;
            }

            if (isEncrypted)
            {
                ColorConsole.WithYellowText.WriteLine("Application is already encrypted!\n");
                await PrintHelp();
                return;
            }
            
            Encryption.EncryptApp();
            
            Console.Clear();
            await PrintHelp();
        }

        private static async Task DecryptApp()
        {
            if (!isEncrypted)
            {
                ColorConsole.WithYellowText.WriteLine("Application is already decrypted!\n");
                await PrintHelp();
                return;
            }

            Encryption.DecryptApp();
         
            Console.Clear();
            await PrintHelp();
        }

        private static async Task CmdPrompt() {
            char Key = 'h';

            do {
                Console.Clear();
                //Switch statements for the possible UI options

                switch (Key) {
                    case 's':
                        await PrintStatus();
                        break;
                    case 'h':
                        await PrintHelp();
                        break;
                    case 't':
                        await StartTimer();
                        break;
                    case 'u':
                        await UnlockDevice();
                        break; 
                    case '{':
                        await EncryptApp();
                        break;
                    case '}':
                       await DecryptApp();
                        break;
                    default:
                        ColorConsole.WithRedText.WriteLine($"Unknown command {Key}");
                        await PrintHelp();
                        break;
                }

                Console.Write(">");
            } while ((Key = Console.ReadKey().KeyChar.ToString().ToLower().ToCharArray().First()) != 'q');
        }

        private static void Exit() {
            VRChatConnector.oscQueryDispose();
        }
    }
}