/// <summary>
/// 移除消息中的 <see cref="Quote"/> 元素
/// </summary>
/// <param name="message">消息</param>
private static ComplexMessage RemoveQuote(ComplexMessage message)
{
message = new ComplexMessage(message ?? throw new ArgumentNullException(nameof(message)));
message.RemoveAll(x => x is Quote);
return(message);
}
/// <inheritdoc/>
public static ComplexMessage operator +(ComplexMessage left, ComplexMessage right)
{
var complexMessage = new ComplexMessage(left);
complexMessage.AddRange(right);
return(complexMessage);
}
/// <inheritdoc/>
public static ComplexMessage operator +(MessageElement left, ComplexMessage right)
{
var complexMessage = new ComplexMessage(right);
complexMessage.Insert(0, left);
return(complexMessage);
}
/// <summary>
/// 异步发送消息到当前 <see cref="Chat"/> 实例
/// </summary>
/// <param name="message">要发送的消息</param>
/// <returns>所发送消息的 <see cref="Message"/> 实例</returns>
public async Task <Message> SendAsync(ComplexMessage message)
{
message = message ?? throw new ArgumentNullException(nameof(message));
var result = JObject.Parse((await InternalSendAsync(RemoveQuote(message).ToArray(), GetQuote(message))).CheckError());
return(new Message(Session, GetSource(result.Value <int>("messageId")), message));
}
/// <inheritdoc/>
public static ComplexMessage operator +(ComplexMessage left, MessageElement right)
{
var complexMessage = new ComplexMessage(left)
{
right
};
return(complexMessage);
}
/// <summary>
/// 获取所发送消息的引用
/// </summary>
/// <param name="message">消息</param>
/// <returns>所发送消息需引用的消息 ID</returns>
private static int?GetQuote(ComplexMessage message)
{
message = message ?? throw new ArgumentNullException(nameof(message));
try
{
var quote = message.OfType <Quote>().SingleOrDefault();
return(quote?.Message.Id);
}
catch (InvalidOperationException)
{
throw new MessageFormatException(nameof(Quote));
}
}
/// <summary>
/// 创建 <see cref="Message"/> 实例
/// </summary>
/// <param name="session">指定 <see cref="Message"/> 实例所使用的 Session</param>
/// <param name="content">指定 <see cref="Message"/> 实例的完整内容</param>
internal Message(Session session, List <MessageElement> content) : base(session)
{
content = content ?? throw new ArgumentNullException(nameof(content));
var sources = content.OfType <Source>();
try
{
Source = sources.SingleOrDefault() ?? throw new MessageFormatException(nameof(Messaging.Source));
}
catch (InvalidOperationException)
{
throw new MessageFormatException(nameof(Messaging.Source));
}
Content = new ComplexMessage(content.Except(sources));
FullContent = new ComplexMessage(content);
}
/// <summary> /// 回复当前 <see cref="MessageReceivedEventArgs"/> 实例 /// </summary> /// <param name="e">指定 <see cref="MessageReceivedEventArgs"/> 实例</param> /// <param name="message">要发送的消息</param> /// <returns>所发送消息的 <see cref="Message"/> 实例</returns> public static Task <Message> ReplyAsync(this MessageReceivedEventArgs e, ComplexMessage message) => e?.Source.SendAsync(GetReplyMessage(e, message ?? throw new ArgumentNullException(nameof(message)))) ?? throw new ArgumentNullException(nameof(e));
/// <summary>
/// 创建 <see cref="Message"/> 实例
/// </summary>
/// <param name="session">指定 <see cref="Message"/> 实例所使用的 Session</param>
/// <param name="source">指定 <see cref="Message"/> 实例的来源</param>
/// <param name="content">指定 <see cref="Message"/> 实例的内容</param>
internal Message(Session session, Source source, ComplexMessage content) : base(session)
{
Source = source ?? throw new ArgumentNullException(nameof(source));
Content = content ?? throw new ArgumentNullException(nameof(content));
FullContent = Source + Content;
}
