/// <summary>
/// Changes currency (and amount) of the transaction according to the wallet currency
/// </summary>
/// <param name="transaction">Transaction of a changed currency</param>
/// <param name="walletCurrency">Currency of a wallet, according to this currency will be the transaction currency changed</param>
/// <returns> same instance of transaction with changed currency</returns>
public static Transaction ChangeCurrency(Transaction transaction, Currency walletCurrency)
{
transaction.Amount = transaction.Amount*
ExchangeRateReader.GetExchangeRate(transaction.Currency.Code, walletCurrency.Code);
transaction.Currency = walletCurrency;
return transaction;
}
public Transaction(Transaction transaction)
{
Amount = transaction.Amount;
Budget = transaction.Budget;
Category = transaction.Category;
Currency = transaction.Currency;
Wallet = transaction.Wallet;
Guid = transaction.Guid;
Date = transaction.Date;
Description = transaction.Description;
}
public async Task<bool> AddOrUpdateAsync(Transaction entity)
{
if (entity == null)
throw new ArgumentNullException(nameof(entity));
var existingTransaction = entity.Guid == Guid.Empty
? null
: await Transactions.FindAsync(entity.Guid);
Transactions.AddOrUpdate(x => x.Guid, entity);
await this.SaveChangesAsync();
return existingTransaction == null;
}
public async Task<DeletedEntity<Transaction>> DeteleAsync(Transaction entity)
{
await Task.CompletedTask;
return new DeletedEntity<Transaction>(null);
}
public async Task<bool> AddOrUpdateAsync(Transaction entity)
{
await Task.CompletedTask;
return false;
}
public async Task<DeletedEntity<Transaction>> DeteleAsync(Transaction entity)
{
var transactionToDelete = entity.Guid == Guid.Empty
? null
: await Transactions.FindAsync(entity.Guid);
var deletedTransaction = transactionToDelete == null
? null
: Transactions.Remove(transactionToDelete);
await this.SaveChangesAsync();
return new DeletedEntity<Transaction>(deletedTransaction);
}
public void AttachTransaction(Transaction transaction)
{
Transactions.Attach(transaction);
}
public void AttachTransaction(Transaction transaction)
{
throw new NotImplementedException();
}
/// <summary>
/// Changes currency (and amount) of the transaction according to the wallet currency
/// </summary>
/// <param name="transaction">Transaction of a changed currency</param>
/// <param name="walletCurrency">Currency of a wallet, according to this currency will be the transaction currency changed</param>
/// <returns> new instance of transaction with changed currency</returns>
public static Transaction ChangeCurrencyForNewTransaction(Transaction transaction, Currency walletCurrency)
{
var newTransaction = new Transaction(transaction);
return ChangeCurrency(newTransaction, walletCurrency);
}
