using CarCenterContracts.BindingModels;
using CarCenterContracts.BusinessLogicsContracts;
using CarCenterContracts.SearchModels;
using CarCenterContracts.StoragesContracts;
using CarCenterContracts.ViewModels;
using CarCenterDataModels.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;

namespace CarCenterBusinessLogic.BusinessLogics
{
    public class InspectionLogic : IInspectionLogic
    {
        private readonly ILogger _logger;
        private readonly IInspectionStorage _inspectionStorage;

        public InspectionLogic(ILogger<InspectionLogic> logger, IInspectionStorage inspectionStorage)
        {
            _logger = logger;
            _inspectionStorage = inspectionStorage;
        }

        public bool Create(InspectionBindingModel model)
        {
            CheckModel(model);
            model.InspectionCars = new();

            var result = _inspectionStorage.Insert(model);

            if (result == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }

            return true;
        }

        public bool Delete(InspectionBindingModel model)
        {
            CheckModel(model, false);

            _logger.LogInformation("Delete. Id:{Id}", model.Id);

            var result = _inspectionStorage.Delete(model);

            if (result == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }

            return true;
        }

        public InspectionViewModel? ReadElement(InspectionSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);

            var element = _inspectionStorage.GetElement(model);

            if (element == null)
            {
                _logger.LogWarning("ReadElement element not found");
                return null;
            }

            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);

            return element;
        }

        public List<InspectionViewModel>? ReadList(InspectionSearchModel? model)
        {
            _logger.LogInformation("ReadList. Id:{ Id}", model?.Id);

            var list = model == null ? _inspectionStorage.GetFullList() : _inspectionStorage.GetFilteredList(model);

            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }

            _logger.LogInformation("ReadList. Count:{Count}", list.Count);

            return list;
        }

        public bool Update(InspectionBindingModel model)
        {
            CheckModel(model);

            if (_inspectionStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }

            return true;
        }

        public bool AddCarToInspection(InspectionSearchModel model, ICarModel car)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            _logger.LogInformation("AddCarToInspection. InspectionName:{InspectionName}.Id:{ Id}", model.InspectionName, model.Id);
            var element = _inspectionStorage.GetElement(model);

            if (element == null)
            {
                _logger.LogWarning("AddCarToInspection element not found");
                return false;
            }

            _logger.LogInformation("AddCarToInspection find. Id:{Id}", element.Id);

            element.InspectionCars[car.Id] = car;

            _inspectionStorage.Update(new()
            {
                Id = element.Id,
                InspectionName = element.InspectionName,
                InspectionDate = element.InspectionDate,
                AdministratorId = element.AdministratorId,
                EmployeeId = element.EmployeeId,
                InspectionCars = element.InspectionCars
            });

            return true;
        }

        private void CheckModel(InspectionBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            if (!withParams)
            {
                return;
            }

            if (string.IsNullOrEmpty(model.InspectionName))
            {
                throw new ArgumentNullException("Нет названия осмотра", nameof(model.InspectionName));
            }

            _logger.LogInformation("Inspection. Id: { Id}", model.Id);

        }
    }
}