protected async Task <bool> EnsureWebAPIsessionStarted()
{
if (webAPIsessionStarted)
{
return(true);
}
string url = new Uri(base_webAPI_uri).Append("exec?command=start&webapi_client_id=" + guid).AbsoluteUri;
#if DEBUG
Console.WriteLine("btnStartWebAPIsession_onClick: HTTP GET");
Console.WriteLine("URL = " + url);
#endif
HttpClient http = new HttpClient();
string strRepl = await http.GetStringAsync(url);
WebAPI_response resp = null;
try
{
resp = JsonConvert.DeserializeObject <WebAPI_response>(strRepl, new JsonSerializerSettings {
TypeNameHandling = TypeNameHandling.All
});
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine(e);
#endif
throw;
}
if (resp == null)
{
#if DEBUG
Console.WriteLine("ERROR: failed deserializing WebAPI response");
#endif
return(false);
}
if (resp.ResponseCode == ResponseCodes.Error)
{
#if DEBUG
Console.WriteLine("ERROR : failed starting a WebAPI session:");
Console.WriteLine("Error code: " + resp.Error.ErrorCode);
Console.WriteLine("Error message: " + resp.Error.ErrorDescription);
#endif
return(false);
}
else if (resp.ResponseCode == ResponseCodes.OK)
{
Console.WriteLine("OK : WebAPI session started successfully!");
webAPIsessionStarted = true;
return(true);
}
return(false);
}
protected async Task <bool> RequestExistingLabels()
{
WebAPI_response resp = null;
string url = new Uri(base_webAPI_uri).Append("labels?command=get_current_example_labels&webapi_client_id=" + guid + "&img_basename=" + CurrentImageBasename).AbsoluteUri;
#if DEBUG
Console.WriteLine("URL = " + url);
#endif
string strRepl = await http.GetStringAsync(url);
try
{
resp = JsonConvert.DeserializeObject <WebAPI_response>(strRepl, new JsonSerializerSettings {
TypeNameHandling = TypeNameHandling.All
});
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine(e);
Console.WriteLine("ERROR: failed deserializing WebAPI response");
return(false);
#endif
}
if (resp != null)
{
if (resp.ResponseCode == ResponseCodes.Error)
{
#if DEBUG
WebAPI_error currError = resp.Error;
Console.WriteLine("WebAPI ERROR code : " + currError.ErrorCode);
Console.WriteLine("WebAPI ERROR description : " + currError.ErrorDescription);
Console.WriteLine("Response JSON: ");
return(false);
#endif
}
else
{
try
{
ExampleLabels received_labels = JsonConvert.DeserializeObject <ExampleLabels>(resp.StringAttributes["found_example_labels"], new JsonSerializerSettings {
TypeNameHandling = TypeNameHandling.All
});
#if DEBUG
Console.WriteLine("got received_labels: " + received_labels.ToJSON());
#endif
foreach (BPaintObject bpobj in received_labels.LabelsList)
{
try
{
#if DEBUG
Console.WriteLine("post-processing BPaintObject");
#endif
bpobj.PostJsonDeserializationCleaning();
}
catch (Exception e)
{
Console.WriteLine(e);
}
ObjectsList.Add(bpobj);
if (ObjectsList.Any())
{
bpobj.ObjectID = ObjectsList.Max(x => x.ObjectID) + 1;
cmd_Clear_Selection();
cmd_Clear_Editing();
}
else
{
bpobj.ObjectID = 1;
}
foreach (BPaintVertex v in bpobj.VerticesList)
{
#if DEBUG
Console.WriteLine("Adding " + bpobj.VerticesList.Count.ToString() + " vertices to this frame");
#endif
VerticesList.Add(v);
}
}
cmd_RefreshSVG();
return(true);
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine("ERROR : failed extracting found_example_labels from JSON response.");
Console.WriteLine("got JSON response:");
Console.Write(strRepl);
Console.WriteLine("converted it to the WebAPI_response instance:");
Console.Write(resp.ToJSON());
Console.WriteLine(e);
#endif
return(false);
}
}
}
return(true);
}
protected async Task <bool> RequestImageURL(string request_type = "get_next_image")
{
string url = new Uri(base_webAPI_uri).Append("images?command=" + request_type + "&webapi_client_id=" + guid).AbsoluteUri;
#if DEBUG
Console.WriteLine("URL = " + url);
#endif
string strRepl = await http.GetStringAsync(url);
WebAPI_response resp = null;
try
{
resp = JsonConvert.DeserializeObject <WebAPI_response>(strRepl, new JsonSerializerSettings {
TypeNameHandling = TypeNameHandling.All
});
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine(e);
#endif
throw;
}
if (resp == null)
{
#if DEBUG
Console.WriteLine("ERROR: failed deserializing WebAPI response");
#endif
return(false);
}
if (resp.ResponseCode == ResponseCodes.Error)
{
WebAPI_error currError = resp.Error;
#if DEBUG
Console.WriteLine("WebAPI ERROR code : " + currError.ErrorCode);
Console.WriteLine("WebAPI ERROR description : " + currError.ErrorDescription);
Console.WriteLine("Response JSON: ");
Console.Write(resp.ToJSON());
#endif
}
else
{
try
{
CurrentBackgroundImageURI = resp.StringAttributes["imageURL"];
#if DEBUG
Console.WriteLine("got CurrentBackgroundImageURI value: " + CurrentBackgroundImageURI);
#endif
CurrentBackgroundImageURI = new Uri(MyNavigationManager.Uri).Append(CurrentBackgroundImageURI).AbsoluteUri;
#if DEBUG
Console.WriteLine("now CurrentBackgroundImageURI: " + CurrentBackgroundImageURI);
#endif
CurrentImageBasename = resp.StringAttributes["imgBaseName"];
StateHasChanged();
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine("ERROR : failed extracting CurrentBackgroundImageURI from JSON response.");
Console.WriteLine("got JSON response:");
Console.Write(strRepl);
Console.WriteLine("converted it to the WebAPI_response instance:");
Console.Write(resp.ToJSON());
Console.WriteLine(e);
#endif
return(false);
}
}
return(true);
}