// -----------------------------------------------------------------------------
// file="glException"
// Project: StgSharp
// Copyright (c) Nitload.
// SPDX-License-Identifier: MIT
// -----------------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
using System.Text;

namespace StgSharp.Graphics.OpenGL
{
    public sealed class GlErrorOverflowException : Exception
    {

        public GlErrorOverflowException(
               int errorCount,
               uint errorCode
        )
            : base(
            "Too many opengl error detected at certain position. " + $"The amount of errors exceeds {errorCount}. " + $"Code of the last error is {errorCode}") { }

    }

    public sealed class GlExecutionException : Exception
    {

        public GlExecutionException(
               uint errorCode
        )
            : base($"Critical OpenGL error: {errorCode}") { }

    }

    public sealed class GlArrayFormatException : Exception
    {

        internal GlArrayFormatException(
                 string message
        )
            : base(message) { }

        internal GlArrayFormatException(
                 SerializationInfo info,
                 StreamingContext context
        )
            : base(info, context) { }

        internal GlArrayFormatException(
                 string message,
                 Exception innerException
        )
            : base(message, innerException) { }

        public GlArrayFormatException(
               PixelChannelLayout layout,
               string arrayname
        )
            : base($"{arrayname} cannot be used as layout of {layout}") { }

    }

    public static partial class GlHelper
    {

        public static bool CheckArrayFormat(
                           this Array array,
                           PixelChannelLayout layout
        )
        {
            return layout switch
            {
                PixelChannelLayout.Byte or PixelChannelLayout.UByte332 or PixelChannelLayout.UByte233Rev => (array is byte[]) ||
                                                                                                            (array is sbyte[]),
                PixelChannelLayout.Short => array is short[],
                PixelChannelLayout.UShort => array is ushort[],
                PixelChannelLayout.Int => array is int[],
                PixelChannelLayout.Float => array is float[],
                PixelChannelLayout.UShort4444 => (array is ushort[]) || (array is byte[]),
                PixelChannelLayout.UByte => (array is byte[]) || (array is sbyte[]),
                PixelChannelLayout.UInt => array is uint[],
                PixelChannelLayout.UShort565 or
                PixelChannelLayout.UShort565Rev or
                PixelChannelLayout.UShort4444Rev or
                PixelChannelLayout.UShort5551 or
                PixelChannelLayout.UShort1555Rev => array is ushort[],
                PixelChannelLayout.UInt8888Rev or
                PixelChannelLayout.UInt1010102 or
                PixelChannelLayout.UInt2101010Rev => array is int[],
                PixelChannelLayout.UInt8888 => array is uint[] or byte[],
                _ => false,
            };
        }

    }
}