IM_NEW/GroupService.Domain/Entities/GroupInvitation.cs

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

namespace GroupService.Domain.Entities
{
    public class GroupInvitation : AggregateRootEntity
    {
        /// <summary>
        /// 群聊编号
        /// </summary>
        public Guid GroupId { get; private set; }
        public GroupProfile GroupProfile { get; private set; }

        /// <summary>
        /// 被邀请用户
        /// </summary>
        public Guid UserId { get; private set; }
        public UserProfile UserProfile { get; private set; }

        /// <summary>
        /// 邀请用户
        /// </summary>
        public Guid OperatorId { get; private set; }
        public UserProfile OperatorProfile { get; private set; }

        /// <summary>
        /// 当前状态(0:待被邀请人同意
        /// 1:被邀请人已同意)
        /// </summary>
        public GroupInvitationState State { get; private set; } = GroupInvitationState.Pending;


        private GroupInvitation() { }
        public GroupInvitation(Guid groupId, GroupProfile groupProfile, Guid userId, UserProfile userProfile, Guid operatorId, UserProfile operatorProfile)
        {
            GroupId = groupId;
            GroupProfile = groupProfile;
            UserId = userId;
            UserProfile = userProfile;
            OperatorId = operatorId;
            OperatorProfile = operatorProfile;
            AddDomainEvent(new GroupInvitationCreateDomainEvent(this));
        }

        public void Accept()
        {
            if (State != GroupInvitationState.Pending) return;
            State = GroupInvitationState.Passed;
            ModificationTime = DateTime.Now;
            AddDomainEvent(new GroupInvitationAcceptDomainEvent(this));
        }

        public void Reject()
        {
            if (State != GroupInvitationState.Pending) return;
            State = GroupInvitationState.Reject;
            ModificationTime = DateTime.Now;
        }
    }
}