using PrecastConcretePlantContracts.BindingModels;
using PrecastConcretePlantContracts.SearchModels;
using PrecastConcretePlantContracts.StoragesContract;
using PrecastConcretePlantContracts.ViewModels;
using PrecastConcretePlantFileImplement.Models;

namespace PrecastConcretePlantFileImplement
{
    public class ReinforcedStorage : IReinforcedStorage
    {
        private readonly DataFileSingleton _source;
        public ReinforcedStorage()
        {
            _source = DataFileSingleton.GetInstance();
        }

        public ReinforcedViewModel? Delete(ReinforcedBindingModel model)
        {
            var element = _source.Reinforceds.FirstOrDefault(x => x.Id == model.Id);
            if (element != null)
            {
                _source.Reinforceds.Remove(element);
                _source.SaveReinforceds();
                return element.GetViewModel;
            }
            return null;
        }

        public ReinforcedViewModel? GetElement(ReinforcedSearchModel model)
        {
            if (string.IsNullOrEmpty(model.ReinforcedName) && !model.Id.HasValue)
            {
                return null;
            }
            return _source.Reinforceds.FirstOrDefault
                (x => (!string.IsNullOrEmpty(model.ReinforcedName) && x.ReinforcedName == model.ReinforcedName) ||
                      (model.Id.HasValue && x.Id == model.Id)
                )?.GetViewModel;
        }

        public List<ReinforcedViewModel> GetFilteredList(ReinforcedSearchModel model)
        {
            if (string.IsNullOrEmpty(model.ReinforcedName))
            {
                return new();
            }
            return _source.Reinforceds
                .Select(x => x.GetViewModel)
                .Where(x => x.ReinforcedName.Contains(model.ReinforcedName))
                .ToList();
        }

        public List<ReinforcedViewModel> GetFullList()
        {
            return _source.Reinforceds
                .Select(x => x.GetViewModel)
                .ToList();
        }

        public ReinforcedViewModel? Insert(ReinforcedBindingModel model)
        {
            model.Id = _source.Reinforceds.Count > 0 ? _source.Reinforceds.Max(x => x.Id) + 1 : 1;
            var newReinforced = Reinforced.Create(model);
            if (newReinforced == null)
            {
                return null;
            }
            _source.Reinforceds.Add(newReinforced);
            _source.SaveReinforceds();
            return newReinforced.GetViewModel;
        }

        public ReinforcedViewModel? Update(ReinforcedBindingModel model)
        {
            var reinforced = _source.Reinforceds.FirstOrDefault(x => x.Id == model.Id);
            if (reinforced == null)
            {
                return null;
            }
            reinforced.Update(model);
            _source.SaveReinforceds();
            return reinforced.GetViewModel;
        }
    }
}