namespace BuildFlow.IM.Integration.Tests;

/// <summary>
/// ChatHub 客户端事件的强类型载荷。
/// 使用强类型而非 dynamic 解析，避免 JSON 序列化命名差异（PascalCase/CamelCase）与
/// Guid↔字符串类型转换在 dynamic 下抛 InvalidCastException（SignalR 客户端回调吞异常，难定位）。
/// 字段使用可空类型，配合缺省构造，容忍服务端载荷字段增减。
/// </summary>
public static class HubEvents
{
    /// <summary>已读回执事件：OnMessageRead。</summary>
    public sealed class MessageReadEvent
    {
        public string? MessageId { get; set; }
        public Guid? UserId { get; set; }
    }

    /// <summary>消息撤回事件：OnMessageRecalled。</summary>
    public sealed class MessageRecalledEvent
    {
        public Guid? ConversationId { get; set; }
        public string? MessageId { get; set; }
        public Guid? UserId { get; set; }
    }

    /// <summary>输入状态事件：OnUserTyping。</summary>
    public sealed class UserTypingEvent
    {
        public Guid? ConversationId { get; set; }
        public Guid? UserId { get; set; }
    }

    /// <summary>上下线事件：OnUserOnline / OnUserOffline。</summary>
    public sealed class UserPresenceEvent
    {
        public Guid? UserId { get; set; }
    }
}