using System.Data;

namespace Terminal.Gui;

/// <summary>
///     <see cref="ITableSource"/> implementation that wraps a <see cref="System.Data.DataTable"/>.  This class is
///     mutable: changes are permitted to the wrapped <see cref="System.Data.DataTable"/>.
/// </summary>
public class DataTableSource : ITableSource
{
    /// <summary>Creates a new instance based on the data in <paramref name="table"/>.</summary>
    /// <param name="table"></param>
    public DataTableSource (DataTable table) { DataTable = table; }

    /// <summary>The data table this source wraps.</summary>
    public DataTable DataTable { get; }

    /// <inheritdoc/>
    public object this [int row, int col] => DataTable.Rows [row] [col];

    /// <inheritdoc/>
    public int Rows => DataTable.Rows.Count;

    /// <inheritdoc/>
    public int Columns => DataTable.Columns.Count;

    /// <inheritdoc/>
    public string [] ColumnNames => DataTable.Columns.Cast<DataColumn> ().Select (c => c.Caption).ToArray ();
}