public HttpResponseMessage GetTransactions([
ValueProvider(typeof(HeaderValueProviderFactory<string>))] string sessionKey)
{
var responseMessage = this.PerformOperationAndHandleExceptions(() =>
{
var context = new BankContext();
using (context)
{
this.ValidateSessionKey(context, sessionKey);
var user = context.Users.SingleOrDefault(u => u.SessionKey == sessionKey);
if (user == null)
{
throw new ServerErrorException("Identification failure");
}
var transactions = context.Transactions.Include("Owner").Include("Account").
Where(t => t.Owner.Id == user.Id).ToList();
var transactionModels = (from transaction in transactions
select new TransactionModel()
{
AccountId = transaction.Account.Id,
Amount = transaction.Amount,
TransactionType =
(transaction.TransactionType == TransactionType.Deposit) ? "deposit" : "withdrawal"
});
return Request.CreateResponse(HttpStatusCode.OK, transactionModels);
}
});
return responseMessage;
}
public HttpResponseMessage GetAccountsByUser(
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(() =>
{
BankContext context = new BankContext();
var user = context.Users.SingleOrDefault(u => u.SessionKey == sessionKey);
if (user == null)
{
throw new ServerErrorException("Identification failure");
}
var accounts = context.Accounts.Include("Owner").Where(a => a.Owner.Id == user.Id);
var accountModels = (from account in accounts
select new AccountModel()
{
Id = account.Id,
Balance = account.Balance
});
return Request.CreateResponse(HttpStatusCode.OK, accountModels);
});
return responseMsg;
}
public HttpResponseMessage UpdateAccount([FromBody] SumModel sum, int accountId,
[ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(() =>
{
BankContext context = new BankContext();
var user = context.Users.SingleOrDefault(u => u.SessionKey == sessionKey);
if (user == null)
{
throw new ServerErrorException("Identification failure");
}
var account = context.Accounts.Include("Owner").SingleOrDefault(a => a.Id == accountId);
if (account == null)
{
throw new ServerErrorException("Account does not exist");
}
if (account.Owner.Id != user.Id)
{
throw new ServerErrorException("Identification does not match account");
}
if ((sum.Sum < 0) && (account.Balance + sum.Sum < 0))
{
throw new ServerErrorException("Amount of money insufficient");
}
account.Balance += sum.Sum;
context.SaveChanges();
var transaction = new Transaction();
transaction.Amount = sum.Sum;
transaction.Owner = user;
transaction.Account = account;
if (sum.Sum < 0)
{
transaction.TransactionType = TransactionType.Withdrawal;
}
else
{
transaction.TransactionType = TransactionType.Deposit;
}
context.Transactions.Add(transaction);
context.SaveChanges();
return Request.CreateResponse(HttpStatusCode.OK);
});
return responseMsg;
}
public HttpResponseMessage GetById(int id, [ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(() =>
{
BankContext context = new BankContext();
var user = context.Users.SingleOrDefault(u => u.SessionKey == sessionKey);
if (user == null)
{
throw new ServerErrorException("Identification failure");
}
var account = context.Accounts.Include("Owner").SingleOrDefault(a => a.Id == id);
if (account == null)
{
throw new ServerErrorException("Account does not exist");
}
if (account.Owner.Id != user.Id)
{
throw new ServerErrorException("Identification does not match account");
}
var accountToReturn = new AccountModel()
{
Id= account.Id,
Balance = account.Balance
};
return Request.CreateResponse(HttpStatusCode.OK, accountToReturn);
});
return responseMsg;
}
