public ResultModel AddTransactionsByFile(IFormFile transactionsFile)
{
var resultModel = new ResultModel();
IEnumerable <Transaction> transactions;
var fileConverter = FileConverterToTransactionsListFactory.GetFileCOnverterToTransactionsList(Path.GetExtension(transactionsFile.FileName));
try
{
transactions = fileConverter.Convert(transactionsFile);
}
catch (Exception ex)
{
logger.LogError(Constants.PARSING_FILE_ERROR, ex);
resultModel.IsError = true;
resultModel.Errors.Add(Constants.PARSING_FILE_ERROR);
return(resultModel);
}
foreach (var item in transactions)
{
if (!item.IsValid())
{
if (!resultModel.IsError)
{
resultModel.IsError = true;
}
resultModel.Errors.Add($"{Constants.TRANSACTION_IS_INVALID} Transaction id: {item.ID}");
}
}
return(resultModel.IsError ? resultModel : transactionRepository.AddRange(transactions));
}
/// <summary>
/// Совершает покупку
/// </summary>
/// <returns></returns>
public async Task <bool> BuyAsync(List <OperationData> operationData)
{
if (operationData.Any(o => o.SellVolume == 0 || o.BuyVolume == 0))
{
return(false);
}
try
{
foreach (var item in operationData)
{
var reservedTransaction = _transactionRepository.GetList(item.UserId, item.CurrencyId, TransactionType.Reserve);
var reservedTransactionSum = await reservedTransaction.SumAsync(s => s.Volume) * -1;
if (reservedTransactionSum >= item.SellVolume)
{
var transactions = new List <Transaction> {
new Transaction {
Volume = item.SellVolume,
CreatedAt = DateTime.UtcNow,
CurrencyId = item.CurrencyId.ToUpper(),
TransactionType = TransactionType.Reserve,
UserId = item.UserId
},
new Transaction {
Volume = item.SellVolume * -1,
CreatedAt = DateTime.UtcNow,
CurrencyId = item.CurrencyId.ToUpper(),
TransactionType = TransactionType.Ask,
UserId = item.UserId
},
new Transaction {
Volume = item.BuyVolume,
CreatedAt = DateTime.UtcNow,
CurrencyId = item.BuyCurrencyId.ToUpper(),
TransactionType = TransactionType.Bid,
UserId = item.UserId
}
};
_transactionRepository.AddRange(transactions);
}
else
{
return(false);
}
}
await _unitOfWork.SaveChangesAsync();
await ReCreateReserves(operationData);
return(true);
}
catch
{
return(false);
}
}
private void CallCsvReader(IFormFile file, ref List <string> errorMesages)
{
List <CsvTransactionModel> csvTransactionModels = csvTransactionReader.Read(file);
if (csvTransactionModels.Count > 0)
{
foreach (CsvTransactionModel transaction in csvTransactionModels)
{
errorMesages.AddRange(csvValidator.Validate(transaction));
}
if (errorMesages.Count == 0)
{
IEnumerable <TransactionModel> transactionModels = csvTransactionModels.Select(s => s.MapToModel());
transactionRepository.AddRange(transactionModels);
}
}
}
public async Task <bool> Add(IEnumerable <Transaction> transactions)
{
await _transactionRepository.AddRange(transactions);
return(true);
}
