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

namespace DeviceBusinessLogic.BusinessLogics
{
    public class StaffLogic : IStaffLogic
    {
        private readonly ILogger _logger;
        private readonly IStaffStorage _staffStorage;
        public StaffLogic(ILogger<StaffLogic> logger,
            IStaffStorage staffStorage)
        {
            _logger = logger;
            _staffStorage = staffStorage;
        }
        public bool Create(StaffBindingModel model)
        {
            CheckModel(model);
            if (_staffStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }
        public bool Update(StaffBindingModel model)
        {
            CheckModel(model);
            if (_staffStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }
        public bool Delete(StaffBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id: {Id}", model.Id);
            if (_staffStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }
        public List<StaffViewModel>? ReadList(StaffSearchModel? model)
        {
            _logger.LogInformation(
                "ReadList. Id: {Id}, FullName: {FullName}, Department: " +
                "{Department}, Email: {Email}, AccessLevel: {AccessLevel},", 
                model?.Id, model?.FullName, 
                model?.Department, model?.Email, model?.AccessLevel);
            var list = model == null ? _staffStorage.GetFullList() :
                _staffStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
            return list;
        }
        public StaffViewModel? ReadElement(StaffSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation(
                "ReadList. Id: {Id}, FullName: {FullName}, Department: " +
                "{Department}, Email: {Email}, AccessLevel: {AccessLevel},",
                model?.Id, model?.FullName,
                model?.Department, model?.Email, model?.AccessLevel);
            var element = _staffStorage.GetElement(model);
            if (element == null)
            {
                _logger.LogWarning("ReadElement element not found");
                return null;
            }
            _logger.LogInformation("ReadElement find. Id: {Id}",
                element.Id);
            return element;
        }
        private void CheckModel(StaffBindingModel model,
            bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (model.Id <= 0)
            {
                throw new ArgumentNullException(
                    "Идентификатор должен быть больше 0",
                    nameof(model.Id));
            }
            if (string.IsNullOrEmpty(model.FullName))
            {
                throw new ArgumentNullException(
                    "Отсутствует ФИО",
                    nameof(model.FullName));
            }
            if (string.IsNullOrEmpty(model.Department))
            {
                throw new ArgumentNullException(
                    "Отсутствует ФИО",
                    nameof(model.Department));
            }
            if (string.IsNullOrEmpty(model.Email))
            {
                throw new ArgumentNullException(
                    "Отсутствует ФИО",
                    nameof(model.Email));
            }
            if (string.IsNullOrEmpty(model.Password))
            {
                throw new ArgumentNullException(
                    "Отсутствует ФИО",
                    nameof(model.Password));
            }
            _logger.LogInformation(
                "ReadList. Id: {Id}, FullName: {FullName}, Department: " +
                "{Department}, Email: {Email}, AccessLevel: {AccessLevel},",
                model?.Id, model?.FullName,
                model?.Department, model?.Email, model?.AccessLevel);
            var elementByFullName = _staffStorage.GetElement(
                new StaffSearchModel
                {
                    FullName = model.FullName,
                });
            var elementByDepartment = _staffStorage.GetElement(
                new StaffSearchModel
                {
                    Department = model.Department,
                });
            var elementByEmail = _staffStorage.GetElement(
                new StaffSearchModel
                {
                    Email = model.Email,
                });
        }
    }
}