IM_NEW/ContactService.Domain/Entities/Friend.cs

using ContactService.Domain.Events;
using ContactService.Domain.ValueObjects;
using IM.DomainCommons;

namespace ContactService.Domain.Entities
{
    public class Friend : AggregateRootEntity
    {
        public UserProfile Owner { get; private set; }
        public UserProfile Target { get; private set; }
        /// <summary>
        /// 好友备注名
        /// </summary>
        public string? RemarkName { get; private set; }
        public FriendStatus Status { get; private set; }

        private Friend() { }

        public Friend(UserProfile owner, UserProfile target, string? remarkName)
        {
            Owner = owner;
            Target = target;
            RemarkName = remarkName;
            Status = FriendStatus.Added;

            AddDomainEvent(new FriendAddedDomainEvent(this));
        }

        public void setRemarkName(string? remarkName)
        {
            if (remarkName.Length > 20)
            {
                throw new DomainException("备注名过长");
            }
            RemarkName = remarkName ?? RemarkName;
        }

        public void Block()
        {
            Status = FriendStatus.Blocked;
            AddDomainEvent(new FriendBlockDomainEvent(this));
        }

        public void UpdateUserInfo(UserProfile profile)
        {
            if (profile.Id != Target.Id)
            {
                return;
            }

            Target = profile;
        }
    }
}