public MainViewModel()
{
_authenticationVM = new AuthenticationViewModel();
_authenticationVM.Authentication += GoToProductVM;
_filter = new FilterViewModel();
BuyOfferVMCommand = new AsyncRelayCommand(execute => GoToBuyOfferVM(), canExecute => { return(true); });
SellOfferVMCommand = new AsyncRelayCommand(execute => GoToSellOfferVM(), canExecute => { return(true); });
ProductVMCommand = new AsyncRelayCommand(execute => GoToProductVM(null, null), canExecute => { return(true); });
SearchCommand = new AsyncRelayCommand(execute => Search(), canExecute => { return(true); });
BuyTransactionVMCommand = new AsyncRelayCommand(execute => GoToBuyTransactionVM(), canExecute => { return(true); });
SellTransactionVMCommand = new AsyncRelayCommand(execute => GoToSellTransactionVM(), canExecute => { return(true); });
ManageAccountVMCommand = new AsyncRelayCommand(execute => GoToManageAccountVM(), canExecute => { return(true); });
LogoutCommand = new RelayCommand(execute => Logout(), canExecute => { return(true); });
IsUserAuthenticated = false;
DisplayedView = _authenticationVM;
}
public async Task AddOffer()
{
if (CreatedOffer.Name == null || CreatedOffer.Product == null ||
CreatedOffer.Amount <= 0 || CreatedOffer?.Price <= 0)
{
CreatedOffer = SellOfferWrapper.CreateSellOffer(_user);
ErrorString = (string)Application.Current.FindResource("InvalidSellOfferError");
return;
}
using (var client = new HttpClient())
{
CreatedOffer.ProductId = CreatedOffer.Product.Id;
FilterViewModel filter = new FilterViewModel(_filter);
filter.Name = _createdOffer.Product.Name;
URLBuilder url = new URLBuilder(filter, controler);
url.URL += "&ShowMyOffers=true";
var request = new HttpRequestMessage()
{
RequestUri = new Uri(url.URL),
Method = HttpMethod.Get
};
request.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes(string.Format("{0}:{1}", _authenticationUser.UserId.ToString(), _authenticationUser.Password))));
var response = await client.SendAsync(request);
var contents = await response.Content.ReadAsStringAsync();
List <SellOfferDto> result = JsonConvert.DeserializeObject <List <SellOfferDto> >(contents);
var totalAmount = result.Sum(offer => offer.Amount);
if (CreatedOffer.Amount + totalAmount > CreatedOffer.Product.Stock)
{
CreatedOffer = SellOfferWrapper.CreateSellOffer(_user);
ErrorString = (string)Application.Current.FindResource("StockError");
return;
}
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
SellOfferDto content = createOffer(_createdOffer);
var json = Newtonsoft.Json.JsonConvert.SerializeObject(content);
url = new URLBuilder(controler);
var request2 = new HttpRequestMessage()
{
RequestUri = new Uri(url.URL),
Method = HttpMethod.Post,
Content = new StringContent(json,
Encoding.UTF8,
"application/json")
};
request2.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes(string.Format("{0}:{1}", _authenticationUser.UserId.ToString(), _authenticationUser.Password))));
var response1 = await client.SendAsync(request2);
if (response.IsSuccessStatusCode)
{
await Load();
_createdOffer = SellOfferWrapper.CreateSellOffer(_user);
}
else
{
ErrorString = (string)Application.Current.FindResource("InsertSellOfferError");
return;
}
}
ErrorString = null;
}
