private async Task <bool> PrepareAndReadInputFile()
{
switch (_userSession.InputSource)
{
case InputSource.LocalFile:
ViewModel.InputFileName = _userSession.InputUri;
return(true);
case InputSource.GoogleMyMapsUrl:
var errorMessage = "Cannot download KML file for provided URL. Make sure the map is shared publicly.";
var uri = _googleMyMapAdapter.GetKmlDownloadUrl(new Uri(_userSession.InputUri));
if (uri == null)
{
await _dialog.InvalidOperationMessage(errorMessage);
return(false);
}
try
{
var inputData = await _webClient.GetAsync(uri);
ViewModel.InputFileName = $"{Path.GetTempPath()}{_resourceName.GetTempFolderPrefix()}{Guid.NewGuid()}.kmz";
await _file.WriteBytesAsync(ViewModel.InputFileName, inputData);
_tempFilesCreated.Add(ViewModel.InputFileName);
return(true);
}
catch (Exception)
{
await _dialog.InvalidOperationMessage(errorMessage);
}
break;
default:
throw new NotSupportedException($"Input source type is invalid: {_userSession.InputSource}");
}
return(false);
}
