using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;

namespace PdfGenerator.Generator
{
    public class Generator
    {
        public byte[] CreateFile(string name)
        {
            // Default
            if (string.IsNullOrEmpty(name)) name = "World";

            // Document initiation
            Document document = new Document(PageSize.A4);

            using (MemoryStream stream = new MemoryStream())
            {
                using (PdfWriter writer = PdfWriter.GetInstance(document, stream))
                {
                    // Opening the document allow us to write content
                    document.Open();
                    // Add a simple phrase to the document
                    document.Add(new Paragraph($"Hello {name}!"));
                    // Close the document
                    document.Close();

                    return stream.ToArray();
                }
            }
        }
    }
}