using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
using UserService.DatabaseLayer.DataModels;
using UserService.Infrastructure.DataModels;

namespace UserService.DatabaseLayer.Repositories
{
    public class SecurityGroupsRepository : BaseRepository<SecurityGroup>, ISecurityGroupsRepository
    {
        public SecurityGroupsRepository() : base(x => x.SecurityGroups)
        {
        }

        public override async Task<IReadOnlyList<SecurityGroup>> GetAllAsync(Expression<Func<SecurityGroup, bool>>? predicate = null, CancellationToken token = default)
        {
            await using var db = new UserServiceDbContext();
            return await Context(db)
                .Include(x => x.Parent)
                .Include(x => x.Members)
                .ThenInclude(x=> x.AttachedMember)
                .WhereOrDefault(predicate)
                .ToListAsync(token).ConfigureAwait(false);
        }

        public override async Task<SecurityGroup?> GetAsync(Expression<Func<SecurityGroup, bool>> predicate, CancellationToken token = default)
        {
            await using var db = new UserServiceDbContext();
            return await Context(db)
                .Include(x => x.Parent)
                .Include(x => x.Members)
                .ThenInclude(x=> x.AttachedMember)
                .FirstOrDefaultAsync(predicate, token).ConfigureAwait(false);
        }

        public override async Task<bool> UpdateAsync(SecurityGroup entity, CancellationToken token = default)
        {
            await using var db = new UserServiceDbContext();
            Context(db).Update(entity);
            var items = await db.SaveChangesAsync(token).ConfigureAwait(false);
            return items > 0;
        }
    }
}