private Expense RegisterSimpleExpense(RegisterExpense simpleExpense, Payee payee)
{
var entity = (SimpleExpense)simpleExpense;
entity.Payee = payee;
#region Validations
if (simpleExpense.Payers?.Any() != true)
{
ModelState.AddModelError("Payers", "When registering a Simple Expense, you must specify at least one Payer.");
return(null);
}
#region Validate Payers
// TODO: validate duplications before calling the database
var payers = _roommates.GetByIds(simpleExpense.Payers.Select(x => x.Id).Distinct());
if (payers.Count() != simpleExpense.Payers.Count())
{
ModelState.AddModelError("Payers", "At least one Payer is invalid, does not represent a registered Roommate, or is duplicated.");
return(null);
}
else if (payers.Count() == 1 && payers.First().Id == payee.Id)
{
ModelState.AddModelError("Payers", "At this moment, self expenses are not supported. Please consider other alternatives.");
return(null);
}
var sum = simpleExpense.Payers.Sum(x => x.Amount * (decimal)x.Multiplier);
if (sum > 0)
{
ModelState.AddModelError("Payers", "An Expense cannot be proportional and even at the same time. Amount and Multiplier cannot be filled at the same time. Please, select only one.");
return(null);
}
entity.Payers = simpleExpense.Payers.Select(x => new Payer
{
Id = x.Id,
Amount = simpleExpense.Distribution.GetAmount(simpleExpense, x),
Name = payers.Single(p => p.Id == x.Id).Name
});
var total = entity.Payers.Sum(x => x.Amount);
if (total != simpleExpense.Total)
{
ModelState.AddModelError("Payers", "The total amount for this expense and the total amount by payers' distribution differ.");
return(null);
}
#endregion
#endregion
var result = _expenses.Add(entity);
if (result != null)
{
UpdateBalances(entity.Payers, entity.Payee, entity.Total);
}
return(result);
}
public IActionResult Post([FromBody] Expense expense)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
_expensesRepository.Add(expense);
return(StatusCode(StatusCodes.Status201Created));
}
public IActionResult CreateExpense(Expense expense)
{
if (!ModelState.IsValid)
{
return(BadRequest());
}
_repo.Add(expense);
_repo.SaveAll();
// var expenseToReturn = _mapper.Map<ExpensesForListDto>(expense);
return(Created(new Uri(Request.Path + "/" + expense.Id), expense));
}
public IActionResult AddRandom()
{
var categories = new[]
{
"food", "fuel", "clothes", "bills"
};
_expensesRepository.Add(new Expense()
{
Amount = DateTime.Now.Ticks % 100,
Category = categories[new Random().Next(0, categories.Length)],
Date = DateTime.UtcNow
});
return(RedirectToAction(nameof(Index)));
}
protected AddEditViewModel()
{
_expensesRepository = new ExpensesRepository();
RegisterCommand = new RelayCommand <Expense>(async(exp) =>
{
if (!exp.IsValid)
{
return;
}
if (exp.Id == Guid.Empty)
{
exp.Id = Guid.NewGuid();
_expensesRepository.Add(exp);
}
else
{
_expensesRepository.Update(exp);
}
await Application.Current.MainPage.Navigation.PopAsync(animated: true);
}, (exp) => exp != null && exp.IsValid);
}