Terraria.Chat/ChatMessage.cs

using System;
using System.IO;
using System.Text;
using Terraria.Chat.Commands;

namespace Terraria.Chat;

public sealed class ChatMessage
{
	public ChatCommandId CommandId { get; private set; }

	public string Text { get; set; }

	public bool IsConsumed { get; private set; }

	public ChatMessage(string message)
	{
		CommandId = ChatCommandId.FromType<SayChatCommand>();
		Text = message;
		IsConsumed = false;
	}

	private ChatMessage(string message, ChatCommandId commandId)
	{
		CommandId = commandId;
		Text = message;
	}

	public void Serialize(BinaryWriter writer)
	{
		if (IsConsumed)
		{
			throw new InvalidOperationException("Message has already been consumed.");
		}
		CommandId.Serialize(writer);
		writer.Write(Text);
	}

	public int GetMaxSerializedSize()
	{
		if (IsConsumed)
		{
			throw new InvalidOperationException("Message has already been consumed.");
		}
		return 0 + CommandId.GetMaxSerializedSize() + (4 + Encoding.UTF8.GetByteCount(Text));
	}

	public static ChatMessage Deserialize(BinaryReader reader)
	{
		ChatCommandId commandId = ChatCommandId.Deserialize(reader);
		return new ChatMessage(reader.ReadString(), commandId);
	}

	public void SetCommand(ChatCommandId commandId)
	{
		if (IsConsumed)
		{
			throw new InvalidOperationException("Message has already been consumed.");
		}
		CommandId = commandId;
	}

	public void SetCommand<T>() where T : IChatCommand
	{
		if (IsConsumed)
		{
			throw new InvalidOperationException("Message has already been consumed.");
		}
		CommandId = ChatCommandId.FromType<T>();
	}

	public void Consume()
	{
		IsConsumed = true;
	}
}