/// <summary>
/// Initializes a new instance of the <see cref="Irc.ChannelModeEventArgs"/> class.
/// </summary>
/// <param name="channelName">The channel that is the source of the mode change.</param>
/// <param name="modeChanger">The nickname of the user that changed the channel modes, or null if none exists.</param>
/// <param name="modeString">The mode string containing a list of added and removed channel modes.</param>
/// <exception cref="System.ArgumentNullException">Thrown if channelName is null.</exception>
public ChannelModeEventArgs(IrcChannelName channelName, IrcNickname modeChanger, ChannelModeString modeString)
: base(modeChanger)
{
if (channelName == null)
{
throw new ArgumentNullException(nameof(channelName));
}
ChannelName = channelName;
ModeString = modeString;
}
/// <summary>
///
/// </summary>
/// <param name="modeString"></param>
/// <param name="mode"></param>
/// <returns></returns>
public static ChannelModeString operator +(ChannelModeString modeString, Mode mode)
{
ChannelModeString retVal = null;
if (modeString == null)
{
retVal = new ChannelModeString(mode);
}
else
{
Mode[] newModeArray = new Mode[modeString.Length + 1];
modeString._modes.CopyTo(newModeArray, 0);
newModeArray[newModeArray.Length - 1] = mode;
retVal = new ChannelModeString(newModeArray);
}
return(retVal);
}
/// <summary>
///
/// </summary>
/// <param name="first"></param>
/// <param name="second"></param>
/// <returns></returns>
public static ChannelModeString operator +(ChannelModeString first, ChannelModeString second)
{
ChannelModeString retVal = null;
if (first != null && second == null)
{
retVal = first;
}
else if (first == null && second != null)
{
retVal = second;
}
else if (first != null && second != null)
{
Mode[] newModeArray = new Mode[first.Length + second.Length];
first._modes.CopyTo(newModeArray, 0);
second._modes.CopyTo(newModeArray, first.Length);
retVal = new ChannelModeString(newModeArray);
}
return(retVal);
}
/// <summary>
/// Deletes the specified number of <see cref="Irc.Mode">Irc.Modes</see> from this
/// <see cref="Irc.ChannelModeString"/> starting from the specified index.
/// </summary>
/// <param name="startIndex">The zero-based index from which
/// to start deleting <see cref="Irc.Mode">Irc.Modes</see>.</param>
/// <param name="count">The number of <see cref="Irc.Mode">Irc.Modes</see> to delete.</param>
/// <returns>A new <see cref="Irc.ChannelModeString"/> with the specified number of modes removed.</returns>
/// <exception cref="System.ArgumentOutOfRangeException">Thrown if startIndex or count is not in the bounds of the array.</exception>
public ChannelModeString Remove(int startIndex, int count)
{
if (startIndex < 0 || startIndex >= Length)
{
throw new ArgumentOutOfRangeException(nameof(startIndex));
}
if (count < 0 || count > Length - startIndex)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
ChannelModeString retVal = null;
if (startIndex > 0)
{
Mode[] newModeArray = new Mode[Length - count];
Array.Copy(_modes, 0, newModeArray, 0, startIndex);
Array.Copy(_modes, startIndex + count, newModeArray, startIndex, Length - startIndex - count);
retVal = new ChannelModeString(newModeArray);
}
return(retVal);
}
