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

namespace Esiur.Data
{
    public enum DataType : byte
    {
        Void = 0x0,
        //Variant,
        Bool,
        Int8,
        UInt8,
        Char,
        Int16,
        UInt16,
        Int32,
        UInt32,
        Int64,
        UInt64,
        Float32,
        Float64,
        Decimal,
        DateTime,
        Resource,
        DistributedResource,
        ResourceLink,
        String,
        Structure,
        //Stream,
        //Array = 0x80,
        VarArray = 0x80,
        BoolArray,
        UInt8Array,
        Int8Array,
        CharArray,
        Int16Array,
        UInt16Array,
        Int32Array,
        UInt32Array,
        Int64Array,
        UInt64Array,
        Float32Array,
        Float64Array,
        DecimalArray,
        DateTimeArray,
        ResourceArray,
        DistributedResourceArray,
        ResourceLinkArray,
        StringArray,
        StructureArray,
        NotModified = 0x7f,
        Unspecified = 0xff,
    }

    public static class DataTypeExpansions
    {
        public static int Size(this DataType t)
        {
            switch (t)
            {
                case DataType.Void:
                case DataType.NotModified:
                    return 0;
                case DataType.Bool:
                case DataType.UInt8:
                case DataType.Int8:
                    return 1;
                case DataType.Char:
                case DataType.UInt16:
                case DataType.Int16:
                    return 2;
                case DataType.Int32:
                case DataType.UInt32:
                case DataType.Float32:
                case DataType.Resource:
                    return 4;
                case DataType.Int64:
                case DataType.UInt64:
                case DataType.Float64:
                case DataType.DateTime:
                    return 8;
                case DataType.DistributedResource:
                    return 4;

                default:
                    return -1;
            }
        }


    }
}