// Copyright 2009-2022 Josh Close
// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
// https://github.com/JoshClose/CsvHelper
using System;
using System.Text;

namespace CsvHelper.Configuration.Attributes
{
	/// <summary>
	/// A value indicating whether the number of bytes should
	/// be counted while parsing. Default is false. This will slow down parsing
	/// because it needs to get the byte count of every char for the given encoding.
	/// The <see cref="Encoding"/> needs to be set correctly for this to be accurate.
	/// </summary>
	[AttributeUsage(AttributeTargets.Class, AllowMultiple = false, Inherited = true)]
	public class CountBytesAttribute : Attribute, IClassMapper
	{
		/// <summary>
		/// A value indicating whether the number of bytes should
		/// be counted while parsing. Default is false. This will slow down parsing
		/// because it needs to get the byte count of every char for the given encoding.
		/// The <see cref="Encoding"/> needs to be set correctly for this to be accurate.
		/// </summary>
		public bool CountBytes { get; private set; }

		/// <summary>
		/// A value indicating whether the number of bytes should
		/// be counted while parsing. Default is false. This will slow down parsing
		/// because it needs to get the byte count of every char for the given encoding.
		/// The <see cref="Encoding"/> needs to be set correctly for this to be accurate.
		/// </summary>
		/// <param name="countBytes"></param>
		public CountBytesAttribute(bool countBytes)
		{
			CountBytes = countBytes;
		}

		/// <inheritdoc />
		public void ApplyTo(CsvConfiguration configuration)
		{
			configuration.CountBytes = CountBytes;
		}
	}
}