public ExpensesViewModel()
{
instance = this;
this.apiService = new ApiService();
this.dataService = new DataService();
LoadExpenses();
//this.IsRefreshing = false;
}
private static ExpensesViewModel instance; // Atributo
public static ExpensesViewModel GetInstance()
{
if (instance == null)
{
instance = new ExpensesViewModel();
}
return(instance);
}
private async void Delete()
{
var answer = await Application.Current.MainPage.DisplayAlert(
Languages.Confirm,
Languages.DeleteConfirmation,
Languages.Yes,
Languages.No);
if (!answer)
{
return;
}
this.IsRunning = true;
this.isEnabled = false;
var connection = await this.apiService.CheckConnection();
if (!connection.IsSuccess)
{
this.IsRunning = false;
this.isEnabled = true;
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
connection.Message,
Languages.Accept);
return;
}
var url = Application.Current.Resources["UrlAPI"].ToString(); // Obtengo la url del diccionario de recursos.
var prefix = Application.Current.Resources["UrlPrefix"].ToString(); // Obtengo el prefijo del diccionario de recursos.
var controller = Application.Current.Resources["UrlExpensesController"].ToString(); // Obtengo el controlador del diccionario de recursos.
var response = await this.apiService.Delete(url, prefix, controller, this.Expense.ExpenseId, Settings.TokenType, Settings.AccessToken);
if (!response.IsSuccess)
{
this.IsRunning = false;
this.isEnabled = true;
await Application.Current.MainPage.DisplayAlert(Languages.Error, response.Message, Languages.Accept);
return;
}
var expensesViewModel = ExpensesViewModel.GetInstance();
var deletedExpense = expensesViewModel.MyExpenses.Where(p => p.ExpenseId == this.Expense.ExpenseId).FirstOrDefault(); // LinQ
if (deletedExpense != null)
{
expensesViewModel.MyExpenses.Remove(deletedExpense); // con esto me lo debe refrescar automaticamente en la lista
}
expensesViewModel.RefreshList();
this.IsRunning = false;
this.isEnabled = true;
await App.Navigator.PopAsync();
}
public ExpensesViewModel(Request request)
{
instance = this;
this.apiService = new ApiService();
this.dataService = new DataService();
this.Request = request;
RequestDescription = request.Description;
LoadExpenses();
//this.IsRefreshing = false;
}
private async void Save()
{
if (this.ExpenseDate > this.Request.ExpenseDateEnd ||
this.ExpenseDate < this.Request.ExpenseDateStart)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.DateRangeError,
Languages.Accept);
return;
}
if (string.IsNullOrEmpty(this.DocumentNumber))
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.DocumentNumberError,
Languages.Accept);
return;
}
if (this.Amount <= 0)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountInvalid,
Languages.Accept);
return;
}
if (this.AmountIVA > this.Amount)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountIvaInvalid,
Languages.Accept);
return;
}
if (this.AmountPercepcion > this.Amount)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountPercepcionInvalid,
Languages.Accept);
return;
}
if (this.AmountIVA + this.AmountPercepcion > this.Amount)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountPercepcionInvalid,
Languages.Accept);
return;
}
this.IsRunning = true; // Esto muestra el activity indicator
this.IsEnabled = false; // Desabilito el botón de SAVE para que el usuario no le pegue varias veces.
var connection = await this.apiService.CheckConnection();
if (!connection.IsSuccess)
{
this.IsRunning = false;
this.IsEnabled = true;
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
connection.Message,
Languages.Accept);
return;
}
byte[] imageArray = null;
if (this.file != null)
{
imageArray = FilesHelper.ReadFully(this.file.GetStream());
}
var expense = new Expense();
expense.ExpenseDate = this.ExpenseDate;
expense.CurrencyId = this.CurrencySelected.CurrencyId;
//expense.Currency = this.CurrencySelected;
expense.DocumentTypeId = this.DocumentTypeSelected.DocumentTypeId;
//expense.DocumentType = this.DocumentTypeSelected;
expense.ExpenseTypeId = this.ExpenseTypeSelected.ExpenseTypeId;
//expense.ExpenseType = this.ExpenseTypeSelected;
expense.PaymentTypeId = this.PaymentTypeSelected.PaymentTypeId;
//expense.PaymentType = this.PaymentTypeSelected;
expense.VendorId = this.VendorSelected.VendorId;
//expense.Vendor = this.VendorSelected;
expense.RequestId = this.Request.RequestId;
//expense.Request = this.Request;
expense.Amount = this.Amount;
expense.AmountIVA = this.AmountIVA;
expense.AmountPercepcion = this.AmountPercepcion;
expense.TotalAmount = expense.Amount + expense.AmountIVA + expense.AmountPercepcion;
expense.DocumentNumber = this.DocumentNumber;
expense.Comments = this.Comments;
expense.ImageArray = imageArray;
var url = Application.Current.Resources["UrlAPI"].ToString();
var prefix = Application.Current.Resources["UrlPrefix"].ToString();
var controller = Application.Current.Resources["UrlExpensesController"].ToString();
var response = await this.apiService.Post(url, prefix, controller, expense, Settings.TokenType, Settings.AccessToken);
if (!response.IsSuccess)
{
this.IsRunning = false;
this.IsEnabled = true;
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
response.Message,
Languages.Accept);
return;
}
var newExpense = (Expense)response.Result;
var expensesViewModel = ExpensesViewModel.GetInstance();
// Le agrego las clases
newExpense.Currency = this.CurrencySelected;
newExpense.DocumentType = this.DocumentTypeSelected;
newExpense.ExpenseType = this.ExpenseTypeSelected;
newExpense.PaymentType = this.PaymentTypeSelected;
newExpense.Vendor = this.VendorSelected;
newExpense.Request = this.Request;
expensesViewModel.MyExpenses.Add(newExpense);
expensesViewModel.RefreshList();
this.IsRunning = false;
this.IsEnabled = true;
/*
* await Application.Current.MainPage.DisplayAlert(
* Languages.Atention,
* Languages.DataSaved,
* Languages.Accept);
*/
await App.Navigator.PopAsync();
}
private async void Save()
{
if (Expense.ExpenseDate > RequestSelected.ExpenseDateEnd ||
Expense.ExpenseDate < RequestSelected.ExpenseDateStart)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.DateRangeError,
Languages.Accept);
return;
}
if (string.IsNullOrEmpty(this.Expense.DocumentNumber))
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.DocumentNumberError,
Languages.Accept);
return;
}
if (Expense.Amount <= 0)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountInvalid,
Languages.Accept);
return;
}
if (Expense.AmountIVA > Expense.Amount)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountIvaInvalid,
Languages.Accept);
return;
}
if (Expense.AmountPercepcion > Expense.Amount)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountPercepcionInvalid,
Languages.Accept);
return;
}
if (Expense.AmountIVA + Expense.AmountPercepcion > Expense.Amount)
{
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
Languages.AmountPercepcionInvalid,
Languages.Accept);
return;
}
this.IsRunning = true; // Esto muestra el activity indicator
this.IsEnabled = false; // Desabilito el botón de SAVE para que el usuario no le pegue varias veces.
var connection = await this.apiService.CheckConnection();
if (!connection.IsSuccess)
{
this.IsRunning = false;
this.IsEnabled = true;
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
connection.Message,
Languages.Accept);
return;
}
this.expense.CurrencyId = this.CurrencySelected.CurrencyId;
this.expense.Currency = this.CurrencySelected;
this.expense.DocumentTypeId = this.DocumentTypeSelected.DocumentTypeId;
this.expense.DocumentType = this.DocumentTypeSelected;
this.expense.ExpenseTypeId = this.ExpenseTypeSelected.ExpenseTypeId;
this.expense.ExpenseType = this.ExpenseTypeSelected;
this.expense.PaymentTypeId = this.PaymentTypeSelected.PaymentTypeId;
this.expense.PaymentType = this.PaymentTypeSelected;
this.expense.VendorId = this.VendorSelected.VendorId;
this.expense.Vendor = this.VendorSelected;
this.expense.RequestId = this.RequestSelected.RequestId;
this.expense.Request = this.RequestSelected;
this.expense.TotalAmount = this.expense.Amount + this.expense.AmountIVA + this.expense.AmountPercepcion;
byte[] imageArray = null;
if (this.file != null)
{
imageArray = FilesHelper.ReadFully(this.file.GetStream());
this.expense.ImageArray = imageArray;
}
var url = Application.Current.Resources["UrlAPI"].ToString();
var prefix = Application.Current.Resources["UrlPrefix"].ToString();
var controller = Application.Current.Resources["UrlExpensesController"].ToString();
var response = await this.apiService.Put(url, prefix, controller, this.expense, this.Expense.ExpenseId, Settings.TokenType, Settings.AccessToken);
//var response = await this.apiService.Put(url, prefix, controller, this.expense, this.Expense.ExpenseId);
if (!response.IsSuccess)
{
this.IsRunning = false;
this.IsEnabled = true;
await Application.Current.MainPage.DisplayAlert(
Languages.Error,
response.Message,
Languages.Accept);
return;
}
/*
* Refrescamos la ListView eliminado y agregando el producto.
* (Es la unica manera en que refresca. Bug de xamarin)
*/
var newExpense = (Expense)response.Result;
var expensesViewModel = ExpensesViewModel.GetInstance();
var oldExpense = expensesViewModel.MyExpenses.Where(p => p.ExpenseId == this.Expense.ExpenseId).FirstOrDefault();
if (oldExpense != null)
{
expensesViewModel.MyExpenses.Remove(oldExpense);
}
expensesViewModel.MyExpenses.Add(newExpense);
expensesViewModel.RefreshList();
this.IsRunning = false;
this.IsEnabled = true;
await Application.Current.MainPage.DisplayAlert(
Languages.Atention,
Languages.DataSaved,
Languages.Accept);
await App.Navigator.PopAsync();
}
