public async Task<Expense> Save(string description, double cost, IEnumerable<User> splitees)
{
Expense expense = new Expense();
expense.Cost = cost.ToString();
expense.Description = description;
expense.Users = new List<Payment>();
// Add your friends to the payment
foreach (User user in splitees)
{
Payment payment = new Payment();
payment.OwedShare = Math.Round((cost / (splitees.Count() + 1)), 2).ToString(); // Split the cost evenly (+1 because we need to count the current user)
payment.PaidShare = "0.0";
payment.User = user;
expense.Users.Add(payment);
}
// Add you
double remainingShare = cost - expense.Users.Select(payment => double.Parse(payment.OwedShare)).Aggregate((sum, next) => sum + next);
expense.Users.Add(new Payment() { OwedShare = remainingShare.ToString(), PaidShare = expense.Cost, User = proxy.CurrentUser });
Expense savedExpense = await proxy.CreateExpense(expense);
return savedExpense;
}
public async Task<Expense> CreateExpense(Expense expense)
{
var request = new RestRequest("create_expense", Method.POST);
JObject payload = new JObject();
payload["cost"] = expense.Cost;
payload["payment"] = false;
payload["description"] = expense.Description;
for (int i = 0; i < expense.Users.Count; i++)
{
Payment payment = expense.Users[i];
payload.AddIfNotDefault("users__" + i + "__user_id", payment.User.Id);
payload.AddIfNotDefault("users__" + i + "__fist_name", payment.User.FirstName);
payload.AddIfNotDefault("users__" + i + "__last_name", payment.User.LastName);
payload.AddIfNotDefault("users__" + i + "__email", payment.User.Email);
payload.AddIfNotDefault("users__" + i + "__paid_share", payment.PaidShare);
payload.AddIfNotDefault("users__" + i + "__owed_share", payment.OwedShare);
}
var str = payload.ToString();
request.AddParameter("application/json", str, ParameterType.RequestBody);
ExpenseWrapper result = await this.client.ExecuteRequestAsync<ExpenseWrapper>(request);
if (result.Expenses.Count == 1)
{
// Success
return result.Expenses[0];
}
return null;
}