// Copyright 2009-2024 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.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;
	}
}
