using SYBDContracts.BindingModels;
using SYBDContracts.BusinessLogicsContracts;
using SYBDContracts.SearchModels;
using SYBDContracts.StoragesContracts;
using SYBDContracts.ViewModels;
using Microsoft.Extensions.Logging;

namespace SYBDBusinessLogic.BusinessLogics
{
    public class WorkerLogic : IWorkerLogic
    {
        private readonly ILogger _logger;

        private readonly IWorkerStorage _workerStorage;
        public WorkerLogic(ILogger<WorkerLogic> logger, IWorkerStorage workerStorage)
        {
            _logger = logger;
            _workerStorage = workerStorage;
        }
        public bool Create(WorkerBindingModel model)
        {
            CheckModel(model);
            CheckModel(model);
            if (_workerStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }
        public bool Update(WorkerBindingModel model)
        {
            CheckModel(model);
            if (_workerStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }

        public bool Delete(WorkerBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_workerStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }

        public WorkerViewModel? ReadElement(WorkerSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. Fullname:{Fullname}. Id:{Id}", model.Fullname, model.Id);
            var element = _workerStorage.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<WorkerViewModel>? ReadList(WorkerSearchModel? model)
        {
            _logger.LogInformation("ReadList. Fullname:{Fullname}. Id:{Id}", model?.Fullname, model?.Id);
            var list = model == null ? _workerStorage.GetFullList() : _workerStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
            return list;
        }

        private void CheckModel(WorkerBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.Fullname))
            {
                throw new ArgumentNullException("Нет ФИО работника", nameof(model.Fullname));
            }
            if (string.IsNullOrEmpty(model.Address))
            {
                throw new ArgumentNullException("Нет адреса работника", nameof(model.Address));
            }
            if (model.Salary <= 0)
            {
                throw new ArgumentNullException("Зарплата работника должна быть больше 0", nameof(model.Salary));
            }
            _logger.LogInformation("Component. Fullname:{Fullname}. Address:{Address}.Salary:{Salary}. Id:{Id}", model.Fullname, model.Address, model.Salary, model.Id);
            var element = _workerStorage.GetElement(new WorkerSearchModel
            {
                Fullname = model.Fullname
            });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("Работа с таким названием уже есть");
            }
        }
    }
}