using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace Cowain.Bake.Common.Models
{
    [StructLayout(LayoutKind.Explicit, Size = 4)]
    public class VarValue
    {
        // Fields
        [FieldOffset(0)]
        public bool Boolean;
        [FieldOffset(0)]
        public byte Byte;
        [FieldOffset(0)]
        public short Int16;
        [FieldOffset(0)]
        public ushort UInt16;
        [FieldOffset(0)]
        public int Int32;
        [FieldOffset(0)]
        public uint UInt32;
        [FieldOffset(0)]
        public float Single;

        public string GetValue(string tp)
        {
            if (string.IsNullOrEmpty(tp))
            {
                return "";
            }
            else if (tp == "BOOL")
            {
                return this.Boolean == true ? "TRUE" : "FALSE";
            }
            else
            {
                return this.Int32.ToString();
            }
        }

        public override bool Equals(object obj)
        {
            if (obj == null)
                return false;
            Type type = obj.GetType();
            if (type == typeof(VarValue))
                return this.Int32 == ((VarValue)obj).Int32;
            else
            {
                if (type == typeof(int))
                    return this.Int32 == (int)obj;
                if (type == typeof(uint))
                    return this.UInt32 == (uint)obj;
                if (type == typeof(short))
                    return this.Int16 == (short)obj;
                if (type == typeof(ushort))
                    return this.UInt16 == (ushort)obj;
                if (type == typeof(byte))
                    return this.Byte == (byte)obj;
                if (type == typeof(bool))
                    return this.Boolean == (bool)obj;
                if (type == typeof(float))
                    return this.Single == (float)obj;
                if (type == typeof(string))
                    return this.ToString() == obj.ToString();
                else
                    return false;
            }
        }

        public override int GetHashCode()
        {
            return Int32.GetHashCode();
        }
        public static bool Equals(VarValue a, VarValue b)
        {

            if (a == null || b == null)
            {
                return false;
            }

            if (a.Int32 != b.Int32)
            {
                return false;
            }
            else
                return false;

        }


        public override string ToString()
        {
            return this.Int32.ToString();
        }
    }
}