using GroupService.Domain.Enums;
using GroupService.Domain.Events;
using IM.DomainCommons;

namespace GroupService.Domain.Entities
{
    public class GroupMember : AggregateRootEntity
    {
        /// <summary>
        /// 用户编号
        /// </summary>
        public Guid UserId { get; private set; }
        public string GroupNickName { get; private set; }
        public string? Avatar { get; private set; }

        /// <summary>
        /// 群聊编号
        /// </summary>
        public Guid GroupId { get; private set; }

        /// <summary>
        /// 成员角色（0:普通成员,1:管理员,2:群主）
        /// </summary>
        public GroupMemberRole Role { get; private set; }

        private GroupMember() { }

        public GroupMember(Guid userId, Guid groupId, string groupNickname, string? avatar, GroupMemberRole role = GroupMemberRole.Normal)
        {
            UserId = userId;
            GroupId = groupId;
            Role = role;
            GroupNickName = groupNickname;
            Avatar = avatar;
            AddDomainEvent(new GroupMemberJoinedDomainEvent(this));
        }

        public void UpdateRole(GroupMemberRole role)
        {
            if (role == Role) return;
            Role = role;
        }

        public void UpdateAvatar(string avatar)
        {
            Avatar = avatar;
        }
        public void UpdateGroupNickname(string nickname)
        {
            GroupNickName = nickname;
        }

        public void Leave()
        {
            if (IsDeleted) return;
            SoftDelete();
            AddDomainEvent(new GroupMemberLeftDomainEvent(this));
        }
    }
}