using Amazon.Auth.AccessControlPolicy;
using BeautySaloonContracts.BindingModels;
using BeautySaloonContracts.SearchModels;
using BeautySaloonContracts.StoragesContracts;
using BeautySaloonContracts.ViewModels;
using MongoDB.Bson;
using MongoDB.Driver;

namespace BeautySaloonNoSQLDatabaseImplement.Implements
{
    public class ServiceStorage : IServiceStorage
    {
        private readonly NewdbContext _source;
        public ServiceStorage()
        {
            _source = NewdbContext.GetInstance();
        }
        public ServiceViewModel? Delete(ServiceBindingModel model)
        {
            var element = _source.Services
               .FindOneAndDelete(new BsonDocument("id", model.Id));
            if (element != null)
                return element.GetViewModel;
            return null;
        }

        public ServiceViewModel? GetElement(ServiceSearchModel model)
        {
            if (model.Id.HasValue)
                return _source.Services
                    .Find(new BsonDocument("id", model.Id)).FirstOrDefault()?.GetViewModel;
            if (!string.IsNullOrEmpty(model.Name))
                return _source.Services
                    .Find(new BsonDocument("name", model.Name)).FirstOrDefault()?.GetViewModel;
            return null;
        }

        public List<ServiceViewModel> GetFilteredList(ServiceSearchModel model)
        {
            if (string.IsNullOrEmpty(model.Name))
            {
                return new();
            }
            var filter = Builders<Service>.Filter.Regex("name", new BsonRegularExpression(model.Name));
            return _source.Services.Find(filter).ToList().Select(x => x.GetViewModel).ToList();
        }

        public List<ServiceViewModel> GetFullList()
        {
            var filterDefinition = Builders<Service>.Filter.Empty;
            return _source.Services.Find(filterDefinition).ToList().Select(x => x.GetViewModel).ToList();
        }

        public ServiceViewModel? Insert(ServiceBindingModel model)
        {
            model.Id = _source.Services.AsQueryable()
                .Count() > 0 ? _source.Services.AsQueryable().Max(x => x.Id) + 1 : 1;
            var newElement = Service.Create(model);
            if (newElement == null)
            {
                return null;
            }
            _source.Services.InsertOne(newElement);
            return newElement.GetViewModel;
        }

        public List<ReportViewModel> ReadMostPopular()
        {
            /*var filterDefinition = Builders<Order>.Filter.Empty;
            _source.Orders.Find(filterDefinition).ToList().Select(x => x.ServiceOrders)
            */
            return new();
        }

        public ServiceViewModel? Update(ServiceBindingModel model)
        {
            var element = _source.Services.Find(new BsonDocument("id", model.Id)).FirstOrDefault();
            if (element == null)
            {
                return null;
            }
            element.Update(model);
            _source.Services.FindOneAndReplace(new BsonDocument("id", model.Id), element);
            return element.GetViewModel;
        }
    }
}