private static WaracleCakeList UnsortedDuplicateList()
{
//Create test cake list which is unsorted and contains duplicates
var unsortedDuplicateList = new WaracleCakeList();
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 3", "This is a test cake 3", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 1", "This is a test cake 1", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 5", "This is a test cake 5", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 4", "This is a test cake 4", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 4", "This is a test cake 4", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 2", "This is a test cake 2", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 1", "This is a test cake 1", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 4", "This is a test cake 4", ""));
unsortedDuplicateList.Cakes.Add(new WaracleCake("Test Cake 3", "This is a test cake 3", ""));
return(unsortedDuplicateList);
}
/// <returns><c>WaracleCakeList</c> which will be have duplicates removed, sorted by title, first letter of title and description upper cased</returns>
public static async Task <WaracleCakeList> GetCakeList()
{
var waracleCakeList = new WaracleCakeList();
var networkHelper = ServiceLocator.Current.GetInstance <INetworkHelper>();
var isNetworkAvailable = networkHelper.CheckNetworkStatus(out var networkMessage);
try
{
if (!isNetworkAvailable)
{
throw new Exception(networkMessage);
}
var dl = ServiceLocator.Current.GetInstance <IDownloadCakeList>();
var cakeList = await dl.GetCakeList();
if (cakeList == null || cakeList.Count == 0)
{
throw new Exception("Error retrieving cake list, please try again");
}
//Create list from REST API response data
//1) Removes any duplicate entries
//2) Sorts the list by title
//3) Uppercase fist letter of title and desc
waracleCakeList.AddRangeWithSort(cakeList);
}
catch (Exception ex)
{
//Display appropriate message to user if cake list retrieval failed
//The error message is stored in the cake list object
waracleCakeList.ErrorMessage = ex.Message;
}
return(waracleCakeList);
}
public async void DownLoadCakeList(Action done = null)
{
// Record call back function
_doneFunc = done;
// If we are already loading just return
if (Loading)
{
return;
}
// If we have already loaded the data just call the callback function and return
if (Loaded)
{
_doneFunc();
return;
}
// We are loading now
Loading = true;
try
{
DownlodedCakeList = await CakesHelper.GetCakeList();
Loaded = true;
Loading = false;
// if there is a callback function call it.
_doneFunc?.Invoke();
}
catch (Exception ex)
{
ErrorMessage = ex.Message;
}
}