using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EVCB_OCPP.WSServer.Helper;

public static class StringBuilderExtention
{
    private readonly static char[] m_CrCf;

    static StringBuilderExtention()
    {
        m_CrCf = "\r\n".ToArray();
    }

    /// <summary>
    /// Appends in the format with CrCf as suffix.
    /// </summary>
    /// <param name="builder">The builder.</param>
    /// <param name="format">The format.</param>
    /// <param name="arg">The arg.</param>
    public static void AppendFormatWithCrCf(this StringBuilder builder, string format, object arg)
    {
        builder.AppendFormat(format, arg);
        builder.Append(m_CrCf);
    }

    /// <summary>
    /// Appends in the format with CrCf as suffix.
    /// </summary>
    /// <param name="builder">The builder.</param>
    /// <param name="format">The format.</param>
    /// <param name="args">The args.</param>
    public static void AppendFormatWithCrCf(this StringBuilder builder, string format, params object[] args)
    {
        builder.AppendFormat(format, args);
        builder.Append(m_CrCf);
    }

    /// <summary>
    /// Appends with CrCf as suffix.
    /// </summary>
    /// <param name="builder">The builder.</param>
    /// <param name="content">The content.</param>
    public static void AppendWithCrCf(this StringBuilder builder, string content)
    {
        builder.Append(content);
        builder.Append(m_CrCf);
    }

    /// <summary>
    /// Appends with CrCf as suffix.
    /// </summary>
    /// <param name="builder">The builder.</param>
    public static void AppendWithCrCf(this StringBuilder builder)
    {
        builder.Append(m_CrCf);
    }
}