/// <summary>
/// Fetch the list of Providers from the CDN server.
/// </summary>
/// <remarks>
/// If any provider configurations are returned from the server then
/// override the local list of providers with the server's list.
/// This methods attemps to download the logo, URL, and other information
/// about the provider from the server.
/// </remarks>
/// <param>void</param>
/// <returns>Task<bool></returns>
private async Task <bool> LoadJsonProvidersAsync()
{
var imgCachePath = BuildStoragePath("img");
try
{
List <VATRPDomain> domains = await Utilities.JsonWebRequest.MakeJsonWebRequestAsync <List <VATRPDomain> >(CDN_DOMAIN_URL);
// Added 3/3/2017 fjr Override Local Providers with the server's List
if (m_OverRideLocalProvidersList)
{
if (domains != null &&
domains.Count > 0)
{
ProviderService.ClearProvidersList();
VATRPServiceProvider CustomProvider = new VATRPServiceProvider();
CustomProvider.Address = null;
CustomProvider.Label = "Custom";
ProviderService.AddProvider(CustomProvider);
}
}
// add these into the cache
foreach (VATRPDomain domain in domains)
{
VATRPServiceProvider provider = ProviderService.FindProviderLooseSearch(domain.name);
if (provider == null)
{
provider = new VATRPServiceProvider();
provider.Label = domain.name;
provider.Address = domain.domain;
provider.ImageURI = domain.icon2x;
provider.IconURI = domain.icon;
ProviderService.AddProvider(provider);
}
else
{
// update the provider information
provider.Label = domain.name;
provider.Address = domain.domain;
provider.ImageURI = domain.icon2x;
provider.IconURI = domain.icon;
}
if (provider.ImageURI.NotBlank())
{
provider.LoadImage(imgCachePath, false);
}
if (provider.IconURI.NotBlank())
{
provider.LoadImage(imgCachePath, true);
}
}
VATRPServiceProvider noLogoProvider = ProviderService.FindProviderLooseSearch("_nologo");
if (noLogoProvider == null)
{
noLogoProvider = new VATRPServiceProvider();
ProviderService.AddProvider(noLogoProvider);
}
return(true);
}
catch (Exception ex)
{
// either the domains were mal-formed or we are not able to get to the internet. If this is the case, then allow the cached/defaults.
return(false);
}
}