// 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 CsvHelper.TypeConversion;
using System.Collections.Generic;
using System.Diagnostics;
using System.Reflection;

namespace CsvHelper.Configuration
{
	/// <summary>
	/// The constructor parameter data for the map.
	/// </summary>
	[DebuggerDisplay("Index = {Index}, Names = {string.Join(\", \", Names)}, Parameter = {Parameter}")]
	public class ParameterMapData
	{
		/// <summary>
		/// Gets the <see cref="ParameterInfo"/> that the data
		/// is associated with.
		/// </summary>
		public virtual ParameterInfo Parameter { get; private set; }

		/// <summary>
		/// Gets the list of column names.
		/// </summary>
		public virtual MemberNameCollection Names { get; } = new MemberNameCollection();

		/// <summary>
		/// Gets or sets the index of the name.
		/// This is used if there are multiple
		/// columns with the same names.
		/// </summary>
		public virtual int NameIndex { get; set; }

		/// <summary>
		/// Gets or sets a value indicating if the name was
		/// explicitly set. True if it was explicitly set,
		/// otherwise false.
		/// </summary>
		public virtual bool IsNameSet { get; set; }

		/// <summary>
		/// Gets or sets the column index.
		/// </summary>
		public virtual int Index { get; set; } = -1;

		/// <summary>
		/// Gets or sets a value indicating if the index was
		/// explicitly set. True if it was explicitly set,
		/// otherwise false.
		/// </summary>
		public virtual bool IsIndexSet { get; set; }

		/// <summary>
		/// Gets or sets the type converter.
		/// </summary>
		public virtual ITypeConverter TypeConverter { get; set; }

		/// <summary>
		/// Gets or sets the type converter options.
		/// </summary>
		public virtual TypeConverterOptions TypeConverterOptions { get; set; } = new TypeConverterOptions();

		/// <summary>
		/// Gets or sets a value indicating whether the field should be ignored.
		/// </summary>
		public virtual bool Ignore { get; set; }

		/// <summary>
		/// Gets or sets the default value used when a CSV field is empty.
		/// </summary>
		public virtual object? Default { get; set; }

		/// <summary>
		/// Gets or sets a value indicating whether this instance is default value set.
		/// the default value was explicitly set. True if it was
		/// explicitly set, otherwise false.
		/// </summary>
		public virtual bool IsDefaultSet { get; set; }

		/// <summary>
		/// Gets or sets the constant value used for every record.
		/// </summary>
		public virtual object? Constant { get; set; }

		/// <summary>
		/// Gets or sets a value indicating if a constant was explicitly set.
		/// </summary>
		public virtual bool IsConstantSet { get; set; }

		/// <summary>
		/// Gets or sets a value indicating if a field is optional.
		/// </summary>
		public virtual bool IsOptional { get; set; }

		/// <summary>
		/// Initializes a new instance of the <see cref="ParameterMapData"/> class.
		/// </summary>
		/// <param name="parameter">The constructor parameter.</param>
		public ParameterMapData(ParameterInfo parameter)
		{
			Parameter = parameter;
		}
	}
}