Backend-Api/Company.Domain/LawAgg/Law.cs

using System;
using System.Collections.Generic;
using _0_Framework.Domain;
using CompanyManagment.App.Contracts.Law;
using System.Text.Json;
using System.ComponentModel.DataAnnotations.Schema;

namespace Company.Domain.LawAgg
{
    public class Law : EntityBase
    {
        private Law(){}
        public string Title { get; private set; }
        public bool IsActive { get; private set; }
        public  List<LawItem> Items { get; private set; }
        public LawType Type { get; private set; }
        public string HeadTitle { get; private set; }
        public string NotificationsJson { get; private set; }
        public int Version { get; private set; }

        [NotMapped]
        public List<string> Notifications
        {
            get => string.IsNullOrEmpty(NotificationsJson)
                ? new List<string>()
                : JsonSerializer.Deserialize<List<string>>(NotificationsJson);
            set => NotificationsJson = JsonSerializer.Serialize(value);
        }

        public Law(string title, LawType lawType, List<string> notifications, string headTitle, int version = 1)
        {
            Title = title;
            IsActive = true; // آخرین نسخه فعال است
            Items = new List<LawItem>();
            Type = lawType;
            Notifications = notifications ?? new List<string>();
            HeadTitle = headTitle;
            Version = version;
        }

        public void Edit(string title)
        {
            Title = title;
        }

        public void AddItem(string header, string details, int orderNumber)
        {
            Items.Add(new LawItem(header, details, orderNumber));
        }

        public void SetItem(List<LawItem> items)
        {
            Items = items ?? new List<LawItem>();
        }
        public void RemoveItem(int orderNumber)
        {
            var item = Items.Find(x => x.OrderNumber == orderNumber);
            if (item != null)
                Items.Remove(item);
        }

        public void Activate()
        {
            IsActive = true;
        }

        public void Deactivate()
        {
            IsActive = false;
        }

        public void SetAsLatestVersion()
        {
            IsActive = true;
        }

        public void SetAsOldVersion()
        {
            IsActive = false;
        }

        public Law CreateNewVersion(string title, List<string> notifications, string headTitle, List<LawItem> items)
        {
            var newVersion = new Law(
                title,
                this.Type,
                notifications,
                headTitle,
                this.Version + 1
            );
            
            newVersion.SetItem(items);
            newVersion.SetAsLatestVersion();
            
            return newVersion;
        }
    }

    public class LawItem
    {
        public long Id { get; set; }
        public string Header { get; private set; }
        public string Details { get; private set; }
        public int OrderNumber { get; private set; }
        public long LawId { get; set; }

        protected LawItem() { }

        public LawItem(string header, string details, int orderNumber)
        {
            Header = header;
            Details = details;
            OrderNumber = orderNumber;
        }
    }
}