namespace LicenseGenerator
{
    internal class InputArgs
    {
        internal string Command { get; private set; }
        internal string KeyPath { get; private set; }
        internal string Fingerprint { get; private set; }
        internal string OutPath { get; private set; }

        private InputArgs() { }

        internal static InputArgs Parse(string[] args)
        {
            var result = new InputArgs
            {
                Command = args.Length > 0 ? args[0].ToLowerInvariant() : string.Empty,
                OutPath = "license.lic"
            };

            for (int i = 1; i < args.Length; i++)
            {
                string arg = args[i];
                int eq = arg.IndexOf('=');
                if (eq < 0) continue;
                string key = arg.Substring(0, eq).TrimStart('-').ToLowerInvariant();
                string val = arg.Substring(eq + 1);
                switch (key)
                {
                    case "key": result.KeyPath = val; break;
                    case "fingerprint": result.Fingerprint = val; break;
                    case "out": result.OutPath = val; break;
                }
            }

            return result;
        }
    }
}