using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Windows;
using System.Windows.Media.Imaging;

namespace chatclient.Data
{
    /// <summary>
    /// 聊天消息类，表示一条消息的内容和显示属性
    /// </summary>
    public class ChatMessage
    {
        /// <summary>
        /// 发送者名称
        /// </summary>
        public required string Sender { get; set; }
        /// <summary>
        /// 消息类型（文本、图片、文件、系统消息等）
        /// </summary>
        public required MessageType Type { get; set; } = MessageType.Text;
        /// <summary>
        /// 消息发送者的头像图片
        /// </summary>
        public required BitmapImage Image { get; set; }
        /// <summary>
        /// 消息内容
        /// </summary>
        public required string Content { get; set; }
        /// <summary>
        /// 消息发送时间
        /// </summary>
        public DateTime Timestamp { get; set; }
        /// <summary>
        /// 消息在界面中的对齐方式（左/右）
        /// </summary>
        public HorizontalAlignment Alignment { get; set; } = HorizontalAlignment.Left;
        /// <summary>
        /// 发送者名称的显示颜色
        /// </summary>
        public Brush SenderColor { get; set; } = Brushes.Black;
    }
    public enum MessageType
    {
        Text,
        Image,//图片
        File,//文件
        System//系统信息
    }
}