using System.Text;

namespace MultiTerm.Protocols.Model;

/// <summary>
/// A class that represents a Character and contains some additional information and methods.
/// The time of instanciation is represented with the <see cref="TimeOfCreation"/> property.
/// Several methods to display the Character in other formats than Unicode are provided.
/// </summary>
public class ExtendedChar
{
    /// <summary>
    /// Data in the form of a character. UTF-16 code unit.
    /// </summary>
    public char Character { get; set; }

    /// <summary>
    /// Time of instanciation of this class.
    /// </summary>
    public TimeOnly TimeOfCreation { get; private set; }

    public ExtendedChar()
    {
        // initialize time with now
        this.TimeOfCreation = TimeOnly.FromDateTime(DateTime.Now);
    }

    public override string ToString()
    {
        return this.ToUtf16String();
    }

    public string ToUtf16String()
    {
        return this.Character.ToString();
    }

    public string ToHexString()
    {
        // extract bytes from utf16 character
        byte[] byteArray = Encoding.Unicode.GetBytes(this.ToUtf16String());  

        // convert to hexadecimal
        return Convert.ToHexString(byteArray); 
    }

    public string ToBinaryString()
    {
        // extract bytes from utf16 character
        byte[] byteArray = Encoding.Unicode.GetBytes(this.ToUtf16String());

        // foreach byte convert to binary and add to string
        string binaryString = String.Empty;
        foreach (byte b in byteArray)
        {
            binaryString += $"{Convert.ToString(b, 2)} ";
        }
        return binaryString;
    }
}