Studety/Demo/Data/Repository/GroupRepositoryImpl.cs

using Demo.Data.LocalData;
using Demo.domain.Models;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;

namespace Demo.Data.Repository
{
    [DebuggerDisplay($"{{{nameof(GetDebuggerDisplay)}(),nq}}")]
    public class GroupRepositoryImpl
    {
        public List<GroupLocalEntity> GetAllGroups() => LocalStaticData.groups;

        public void AddGroup(GroupLocalEntity newGroup)
        {
            LocalStaticData.groups.Add(newGroup);
        }

        public void UpdateGroupName(int groupId, string newName)
{
    var group = LocalStaticData.groups.FirstOrDefault(g => g.Id == groupId);
    if (group != null)
    {
        group.Name = newName;
    }
}


        public GroupLocalEntity GetGroupById(int groupId)
        {
            return LocalStaticData.groups.FirstOrDefault(g => g.Id == groupId);
        }

        private static string GetDebuggerDisplay()
        {
            return $"GroupRepository with {LocalStaticData.groups.Count} groups";
        }

        internal void AddGroup(Group group)
        {
            throw new NotImplementedException();
        }
    }
}