using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using Microsoft.EntityFrameworkCore;

namespace IM_API.Models;

[Table("conversations")]
[Index("Userid", Name = "Userid")]
[Index("LastMessageId", Name = "lastMessageId")]
[MySqlCharSet("utf8mb4")]
[MySqlCollation("utf8mb4_general_ci")]
public partial class Conversation
{
    [Key]
    [Column("ID", TypeName = "int(11)")]
    public int Id { get; set; }

    /// <summary>
    /// 用户
    /// </summary>
    [Column(TypeName = "int(11)")]
    public int Userid { get; set; }

    /// <summary>
    /// 对方ID（群聊为群聊ID，单聊为单聊ID）	
    /// </summary>
    [Column(TypeName = "int(11)")]
    public int Targetid { get; set; }

    /// <summary>
    /// 消息类型（同Messages.MsgType）	
    /// </summary>
    [Column(TypeName = "int(11)")]
    public int MsgType { get; set; }

    /// <summary>
    /// 最后一条消息ID	
    /// </summary>
    [Column("lastMessageId", TypeName = "int(11)")]
    public int LastMessageId { get; set; }

    /// <summary>
    /// 未读消息数	
    /// </summary>
    [Column("unreadCount", TypeName = "int(11)")]
    public int UnreadCount { get; set; }

    [ForeignKey("LastMessageId")]
    [InverseProperty("Conversations")]
    public virtual Message LastMessage { get; set; } = null!;

    [ForeignKey("Userid")]
    [InverseProperty("Conversations")]
    public virtual User User { get; set; } = null!;
}