PIbd-23_Elatomtsev_L.K._Cou.../Bank/BankBusinessLogic/BusinessLogics/CurrencyLogic.cs

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C#
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using BankContracts.BindingModels;
using BankContracts.BusinessLogicsContracts;
using BankContracts.SearchModels;
using BankContracts.StoragesContracts;
using BankContracts.ViewModels;
using Microsoft.Extensions.Logging;
namespace BankBusinessLogic.BusinessLogics
{
public class CurrencyLogic : ICurrencyLogic
{
private readonly ILogger _logger;
private readonly ICurrencyStorage _currencyStorage;
public CurrencyLogic(ILogger<CurrencyLogic> logger,
ICurrencyStorage currencyStorage)
{
_logger = logger;
_currencyStorage = currencyStorage;
}
public bool Create(CurrencyBindingModel model)
{
CheckModel(model);
if (_currencyStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Update(CurrencyBindingModel model)
{
CheckModel(model);
if (_currencyStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
public bool Delete(CurrencyBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id: {Id}", model.Id);
if (_currencyStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
public List<CurrencyViewModel>? ReadList(CurrencySearchModel? model)
{
_logger.LogInformation(
"ReadList. CurrencyName: {CurrencyName}. Id: {Id}",
model?.CurrencyName, model?.Id);
var list = model == null ? _currencyStorage.GetFullList() :
_currencyStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count: {Count}", list.Count);
return list;
}
public CurrencyViewModel? ReadElement(CurrencySearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation(
"ReadElement. CurrencyName: {CurrencyName}. Id: {Id}",
model.CurrencyName, model.Id);
var element = _currencyStorage.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(CurrencyBindingModel model,
bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.CurrencyName))
{
throw new ArgumentNullException(
"Отсутствует название валюты",
nameof(model.CurrencyName));
}
if (model.Course <= 0)
{
throw new ArgumentNullException(
"Курс должен быть больше 0",
nameof(model.Course));
}
_logger.LogInformation("Currency. Id: {Id}. CurrencyName: " +
"{CurrencyName}. Course: {Course}.",
model.Id, model.CurrencyName, model.Course);
var element = _currencyStorage.GetElement(new CurrencySearchModel
{
CurrencyName = model.CurrencyName,
});
if (element != null && element.Id != model.Id)
{
throw new InvalidOperationException(
"Курс с таким названием уже существует");
}
}
}
}