namespace AutoAgent.Domain.Models
{
    public class Key
    {
        public Button Code { get; private set; }

        public Key(Button code) { Code = code; }

        public Key(string key)
        {
            Button code;

            switch (key.ToLowerInvariant())
            {
                case "-": case "_": Code = Button.Sub; break;
                case "+": case "=": Code = Button.Add; break;
                case "~": case "`": Code = Button.Tilde; break;
                case "<": case ",": Code = Button.Comma; break;
                case ">": case ".": Code = Button.Period; break;
                case ":": case ";": Code = Button.Colon; break;
                case "{": case "[": Code = Button.LBracket; break;
                case "}": case "]": Code = Button.RBracket; break;
                case "\\": case "|": Code = Button.BSol; break;
                case "/": case "?": Code = Button.Sol; break;
                case "'": case "\"": Code = Button.Quote; break;
                case "num+": Code = Button.NumAdd; break;
                case "num-": Code = Button.NumSub; break;
                case "num*": Code = Button.NumMul; break;
                case "num/": Code = Button.NumDiv; break;
                case "num.": Code = Button.NumDec; break;

                case "a": case "b": case "c": case "d": case "e": case "f":
                case "g": case "h": case "i": case "j": case "k": case "l":
                case "m": case "n": case "o": case "p": case "q": case "r":
                case "s": case "t": case "u": case "v": case "w": case "x":
                case "y": case "z": case "0": case "1": case "2": case "3":
                case "4": case "5": case "6": case "7": case "8": case "9":
                    if (Enum.TryParse($"Key{key}", out code))
                    {
                        Code = code;
                        break;
                    }
                    else goto default;
                case "shift": case "ctrl": case "alt": case "win":
                    if (Enum.TryParse($"L{key}", out code))
                    {
                        Code = code;
                        break;
                    }
                    else goto default;
                default:
                    if (Enum.TryParse(key, out code))
                    {
                        Code = code;
                        break;
                    }
                    else throw new ArgumentException($"Unexpected key \"{key}\"");
            }
        }
    }
}