private async Task GetControlInfoDataAsync()

in ApplicationUnderTests/AppUIBasics/DataModel/ControlInfoDataSource.cs [144:202]
53 lines of code
9 McCabe index (conditional complexity)

        private async Task GetControlInfoDataAsync()
        {
            lock (_lock)
            {
                if (this._groups.Count != 0)
                    return;
            }

            Uri dataUri = new Uri("ms-appx:///DataModel/ControlInfoData.json");

            StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(dataUri);
            string jsonText = await FileIO.ReadTextAsync(file);

            JsonObject jsonObject = JsonObject.Parse(jsonText);
            JsonArray jsonArray = jsonObject["Groups"].GetArray();

            lock (_lock)
            {
                foreach (JsonValue groupValue in jsonArray)
                {
                    JsonObject groupObject = groupValue.GetObject();
                    ControlInfoDataGroup group = new ControlInfoDataGroup(groupObject["UniqueId"].GetString(),
                                                                          groupObject["Title"].GetString(),
                                                                          groupObject["Subtitle"].GetString(),
                                                                          groupObject["ImagePath"].GetString(),
                                                                          groupObject["Description"].GetString());


                    foreach (JsonValue itemValue in groupObject["Items"].GetArray())
                    {
                        JsonObject itemObject = itemValue.GetObject();
                        var item = new ControlInfoDataItem(itemObject["UniqueId"].GetString(),
                                                                itemObject["Title"].GetString(),
                                                                itemObject["Subtitle"].GetString(),
                                                                itemObject["ImagePath"].GetString(),
                                                                itemObject["Description"].GetString(),
                                                                itemObject["Content"].GetString());
                        if (itemObject.ContainsKey("Docs"))
                        {
                            foreach (JsonValue docValue in itemObject["Docs"].GetArray())
                            {
                                JsonObject docObject = docValue.GetObject();
                                item.Docs.Add(new ControlInfoDocLink(docObject["Title"].GetString(), docObject["Uri"].GetString()));
                            }
                        }
                        if (itemObject.ContainsKey("RelatedControls"))
                        {
                            foreach (JsonValue relatedControlValue in itemObject["RelatedControls"].GetArray())
                            {
                                item.RelatedControls.Add(relatedControlValue.GetString());
                            }
                        }
                        group.Items.Add(item);
                    }
                    if (!this.Groups.Any(g => g.Title == group.Title))
                        this.Groups.Add(group);
                }
            }
        }