using System;
using LicenseGenerator.Commands;

namespace LicenseGenerator
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var input = InputArgs.Parse(args);
            switch (input.Command)
            {
                case "keygen":
                    KeygenCommand.Execute();
                    break;
                case "fingerprint":
                    FingerprintCommand.Execute();
                    break;
                case "sign":
                    SignCommand.Execute(input);
                    break;
                default:
                    PrintUsage();
                    Environment.Exit(1);
                    break;
            }
        }

        private static void PrintUsage()
        {
            Console.WriteLine("LicenseGenerator — NcProgramManager license tool");
            Console.WriteLine();
            Console.WriteLine("Commands:");
            Console.WriteLine("  keygen");
            Console.WriteLine("      Generate RSA 2048-bit key pair.");
            Console.WriteLine("      Writes private.key.xml to current dir.");
            Console.WriteLine("      Prints public key XML to stdout.");
            Console.WriteLine();
            Console.WriteLine("  fingerprint");
            Console.WriteLine("      Print machine fingerprint (Windows + WMI required).");
            Console.WriteLine();
            Console.WriteLine("  sign -key=<private.key.xml> -fingerprint=<fp> [-out=<license.lic>]");
            Console.WriteLine("      Sign machine fingerprint, write .lic file.");
        }
    }
}