// See https://aka.ms/new-console-template for more information

using System.Text;
using PoyoLang.Dictionary;

var dictionary = new Dictionary<string, string>();

var text = "Lorem ipsum dolor sit amet";

var output = new StringBuilder(text.Length);
var span = text.AsSpan();

NextLetter(ref span, output);

Console.Write(output.ToString());

void NextLetter(ref ReadOnlySpan<char> text, StringBuilder output)
{

    if (text.Length > 0)
    {
        var isCaps = char.IsUpper(text[0]);

        switch (text[0])
        {
            case 'a' or 'A':

                if (text.Length > 1)
                {
                    switch (text[1])
                    {
                        case 'm':

                            text = text[2..];

                            output.Append(isCaps ? "Payo" : "payo");

                            return;
                    }
                }

                text = text[1..];

                output.Append(isCaps ?  "Piyo" : "piyo");

                return;

            case 'b' or 'B':

                text = text[1..];

                output.Append(isCaps ? "Pïyo" : "pïyo");

                return;
        }

        text = text[1..];

        output.Append(text[0]);
    }
}