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

namespace FurnitureAssemblyBusinessLogic.BusinessLogics
{
    public class WorkpieceLogic : IWorkpieceLogic
    {
        private readonly ILogger _logger;
        private readonly IWorkpieceStorage _workpieceStorage;
        public WorkpieceLogic(ILogger<WorkpieceLogic> logger, IWorkpieceStorage workpieceStorage)
        {
            _logger = logger;
            _workpieceStorage = workpieceStorage;
        }
        public List<WorkpieceViewModel>? ReadList(WorkpieceSearchModel? model)
        {
           _logger.LogInformation("ReadList. WorkpieceName:{WorkpieceName}.Id:{ Id} ", model?.WorkpieceName, model?.Id);
            var list = model == null ? _workpieceStorage.GetFullList() : _workpieceStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
            return list;
        }
        public WorkpieceViewModel? ReadElement(WorkpieceSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. WorkpieceName:{WorkpieceName}.Id:{ Id}", model.WorkpieceName, model.Id);
        var element = _workpieceStorage.GetElement(model);
            if (element == null)
            {
                _logger.LogWarning("ReadElement element not found");
                return null;
            }
            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
            return element;
        }
        public bool Create(WorkpieceBindingModel model)
        {
            CheckModel(model);
            if (_workpieceStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }
        public bool Update(WorkpieceBindingModel model)
        {
            CheckModel(model);
            if (_workpieceStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }
        public bool Delete(WorkpieceBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_workpieceStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }
        private void CheckModel(WorkpieceBindingModel model, bool withParams =
       true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.WorkpieceName))
            {
                throw new ArgumentNullException("Нет названия компонента",
               nameof(model.WorkpieceName));
            }
            if (model.Cost <= 0)
            {
                throw new ArgumentNullException("Цена компонента должна быть больше 0", nameof(model.Cost));
            }
            _logger.LogInformation("Workpiece. WorkpieceName:{WorkpieceName}.Cost:{ Cost}. Id: { Id}", model.WorkpieceName, model.Cost, model.Id);
            var element = _workpieceStorage.GetElement(new WorkpieceSearchModel {WorkpieceName = model.WorkpieceName});
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("Компонент с таким названием уже есть");
            }
        }
    }
}