using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var produtos = new List<Produto>();

        produtos.Add(new Produto(1, "Arroz", 20.0m, DateTime.Now));

        produtos.Add(new Produto(2, "Feijao", 12.0m, DateTime.Now));

        produtos.Add(new Produto(3, "Oleo", 14.0m, DateTime.Now));

        produtos.Add(new Produto(4, "Ovo 30un", 18.0m, DateTime.Now));

​

        var grid = new Grid("lista de produtos", 4, 25, 10, 11);

        grid.ColumnsTitle("Id", "Descricao", "Valor", "Data");

        grid.ColumnsFormat(string.Empty, string.Empty, "{0:c2}", "{0:dd/MM/yyyy}");

        grid.DataSource(produtos);

        grid.Print("Total: " + produtos.Sum(p => p.Valor).ToString("c2"));

    }

}

​

public class Grid

{

    private readonly List<Row> _rows;

    private readonly int[] _columnsWidth;

    private readonly string[] _columnsFormat;

    private readonly string? _title;

​

    public Grid(string title, params int[] widthColumns)

        : this(widthColumns)

    {

        _title = title;

    }

​

    public Grid(params int[] columnsWidth)

    {

        _columnsWidth = columnsWidth;

        _rows = new List<Row>();

        _columnsFormat = new string[_columnsWidth.Length];

    }

​

    public void ColumnsTitle(params string[] titles)

    {

        _rows.Clear();

        var columns = new Column[titles.Length];

​

        for (var i = 0; i < titles.Length; i++)

            columns[i] = new Column(titles[i], _columnsWidth[i]);

​

        _rows.Add(new Row(columns));

    }

​

    public void ColumnsFormat(params string[] formats)

    {

        for (var i = 0; i < _columnsFormat.Length; i++)

            _columnsFormat[i] = formats[i];

    }

​

    public void DataSource<T>(IEnumerable<T> dataSource)

    {

        foreach (var obj in dataSource)

        {

            var columns = new Column[_columnsWidth.Length];

            var i = 0;

            foreach (var prop in obj.GetType().GetProperties())

            {

                var fmt = _columnsFormat[i];

                var value = string.IsNullOrEmpty(fmt) ? $"{prop.GetValue(obj)}" : string.Format(fmt, prop.GetValue(obj));

                columns[i] = new Column(value, _columnsWidth[i], format: fmt);

                i++;

            }

            _rows.Add(new Row(columns));

        }

    }

​

    public void Print(string footer = "")

    {

        if (!string.IsNullOrEmpty(_title))

            PrintTitle();

​

        foreach (var row in _rows)

            Console.WriteLine(row);

​

        if (!string.IsNullOrEmpty(footer))

            PrintFooter(footer);

    }

​

    private void PrintTitle()

    {

        var width = _rows?.FirstOrDefault()?.Width;

        PrintBorder(width.Value);

​

        var title = "| " + _title.ToUpper();

        Console.WriteLine(title.PadRight(width.Value - 1, ' ') + "|");

​

        PrintBorder(width.Value);

    }

​

    private void PrintBorder(int width)

    {

        Console.WriteLine(new string('-', width));

    }

​

    private void PrintFooter(string label)

    {

        var width = _rows?.FirstOrDefault()?.Width;

        Console.WriteLine("|" + label.PadLeft(width.Value - 3, ' ') + " |");

        PrintBorder(width.Value);

    }

}

​

public class Row

{

    private readonly string _separtor;

    private readonly Column[] _columns;

​

    public int Width { get => Value.Length - 1; }

    public string Value { get; }

​

    public Row(params Column[] columns)

    {

        _separtor = "| ";

        _columns = columns;

        Value = _separtor + string.Join<Column>(_separtor, _columns) + _separtor;

    }

​

    public Column this[int index]

    {

        get => _columns[index];

    }

​

    public override string ToString()

    {

        var rowBaseBorder = new string('-', Width);

        return Value + "\n" + rowBaseBorder;

    }

}

​

public class Column

{

    private readonly string _value;

​

    public int Length { get; private set; }

​

    public Column(string value, int length = 0, char paddingChar = ' ', string format = "")

    {

        if (value.Length > length)

            value = value.Substring(0, length - 3) + "...";

​

        if (!string.IsNullOrEmpty(format))

            value = string.Format(format, value);

​

        _value = value.PadRight(length, paddingChar);

        Length = length;

    }

​

    public override string ToString()

    {

        return _value;

    }

}

​

public class Produto

{

    public Produto(int id, string descricao, decimal valor, DateTime data)

    {

        Id = id;

        Descricao = descricao;

        Valor = valor;

        Data = data;

    }

​

    public int Id { get; set; }

    public string Descricao { get; set; }

    public decimal Valor { get; set; }

    public DateTime Data { get; set; }

}