using MotorPlantContracts.BindingModels;
using MotorPlantContracts.SearchModels;
using MotorPlantContracts.StoragesContracts;
using MotorPlantContracts.VeiwModels;
using MotorPlantListImplement.Models;


namespace MotorPlantListImplement
{
    public class Motortorage : IMotorStorage
    {
        private readonly DataListSingleton _source;

        public Motortorage()
        {
            _source = DataListSingleton.GetInstance();
        }

        public List<MotorViewModel> GetFullList()
        {
            var result = new List<MotorViewModel>();
            foreach (var Motor in _source.Motor)
            {
                result.Add(Motor.GetViewModel);
            }
            return result;
        }

        public List<MotorViewModel> GetFilteredList(MotorSearchModel model)
        {
            var result = new List<MotorViewModel>();
            if (string.IsNullOrEmpty(model.MotorName))
            {
                return result;
            }
            foreach (var Motor in _source.Motor)
            {
                if (Motor.MotorName.Contains(model.MotorName))
                {
                    result.Add(Motor.GetViewModel);
                }
            }
            return result;
        }

        public MotorViewModel? GetElement(MotorSearchModel model)
        {
            if (string.IsNullOrEmpty(model.MotorName) && !model.Id.HasValue)
            {
                return null;
            }
            foreach (var Motor in _source.Motor)
            {
                if ((!string.IsNullOrEmpty(model.MotorName) && Motor.MotorName == model.MotorName) ||
                    (model.Id.HasValue && Motor.Id == model.Id))
                {
                    return Motor.GetViewModel;
                }
            }
            return null;
        }

        public MotorViewModel? Insert(MotorBindingModel model)
        {
            model.Id = 1;
            foreach (var Motor in _source.Motor)
            {
                if (model.Id <= Motor.Id)
                {
                    model.Id = Motor.Id + 1;
                }
            }
            var newMotor = Motor.Create(model);
            if (newMotor == null)
            {
                return null;
            }
            _source.Motor.Add(newMotor);
            return newMotor.GetViewModel;
        }

        public MotorViewModel? Update(MotorBindingModel model)
        {
            foreach (var Motor in _source.Motor)
            {
                if (Motor.Id == model.Id)
                {
                    Motor.Update(model);
                    return Motor.GetViewModel;
                }
            }
            return null;
        }

        public MotorViewModel? Delete(MotorBindingModel model)
        {
            for (int i = 0; i < _source.Motor.Count; ++i)
            {
                if (_source.Motor[i].Id == model.Id)
                {
                    var element = _source.Motor[i];
                    _source.Motor.RemoveAt(i);
                    return element.GetViewModel;
                }
            }
            return null;
        }
    }
}