/// <summary>
/// Deletes the selected object in the listview. If the target has been uploaded to the server, we will mark it to delete.
/// If the target is only local, we ask before deleting it forever.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DeleteTarget_Click(object sender, RoutedEventArgs e)
{
ODLC objectToDelete = (ODLC)Listbox_ODLC.SelectedItem;
//Object is local, we don't have to make changes on the server.
if (objectToDelete.SyncStatus == ODLC.ODLCSyncStatus.UNSYNCED)
{
MessageBoxResult result = MessageBox.Show("Are you sure you want to delete this target?\r\nThis cannot be undone.", "Confirm Delete", MessageBoxButton.YesNo);
if (result == MessageBoxResult.Yes)
{
try
{
odlcList.Remove((ODLC)Listbox_ODLC.SelectedItem);
}
catch
{
throw new NotImplementedException();
}
}
}
//Object is on the server. We instruct the server to delete the object next time we sync.
else
{
objectToDelete.SyncStatus = ODLC.ODLCSyncStatus.DELETE;
}
}
/// <summary>
/// Gets a single ODLC object uploaded from the server. Returns NULL if id is invalid.
/// </summary>
/// <returns>
/// A single ODLC object with the given id. Null if ID is invalid.
/// </returns>
private ODLC getOLDC(int id)
{
if (!gLoggedIn)
{
return(null);
}
ODLC odlcObject = null;
try
{
HttpResponseMessage response = gHttpClient.GetAsync(Properties.Settings.Default.url + "/api/odlcs/" + id.ToString()).Result;
if (response.StatusCode == HttpStatusCode.OK)
{
odlcObject = JsonConvert.DeserializeObject <ODLC>(response.Content.ReadAsStringAsync().Result);
}
else
{
//Response code was not "ok"
MessageBox.Show("Error: " + response.StatusCode.ToString(), "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
catch (Exception Ex)
{
//Log something
return(null);
}
return(odlcObject);
}
/// <summary>
/// Posts the image for the sepcific ODLC object. We get the target ID from the object itself.
/// </summary>
/// <param name="odlcObject"></param>
/// <returns>
/// True if post succeeded, False if post failed.
/// </returns>
private async Task <bool> postImage(ODLC odlcObject)
{
try
{
int?id = odlcObject.ID;
if (id == null)
{
return(false);
}
//convert filestream to byte array
MemoryStream stream = new MemoryStream();
odlcObject.ThumbnailImage.Save(stream, ImageFormat.Jpeg);
byte[] fileBytes;
fileBytes = stream.ToArray();
stream.Close();
//load the image byte[] into a System.Net.Http.ByteArrayContent
ByteArrayContent imageBinaryContent = new ByteArrayContent(fileBytes);
//create a System.Net.Http.MultiPartFormDataContent
ByteArrayContent content2 = new ByteArrayContent(fileBytes);
content2.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("image/jpeg");
//make the POST request using the URI enpoint and the MultiPartFormDataContent
HttpResponseMessage response = await gHttpClient.PostAsync(Properties.Settings.Default.url + "/api/odlcs/" + id + "/image", content2);
if (response.StatusCode == HttpStatusCode.OK)
{
string result = await response.Content.ReadAsStringAsync();
return(true);
}
else
{
//Response code was not "ok"
MessageBox.Show("Error: " + response.StatusCode.ToString(), "Error", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
}
catch (Exception ex)
{
return(false);
}
}
/// <summary>
/// Used to copy the object returned from the server, since it has been validated.
/// </summary>
/// <param name="odlcObject"></param>
public void CopyObjectSettingsFromServer(ODLC odlcObject)
{
ID = odlcObject.id;
Mission = odlcObject.mission;
Type = odlcObject.type;
Latitude = odlcObject.latitude;
Longitude = odlcObject.longitude;
Orientation = odlcObject.orientation;
Shape = odlcObject.shape;
ShapeColor = odlcObject.shapeColor;
Alphanumeric = odlcObject.alphanumeric;
AlphanumericColor = odlcObject.alphanumericColor;
Description = odlcObject.description;
Autonomous = false;
SyncStatus = ODLCSyncStatus.SYNCED;
ServerResponse = odlcObject.serverResponse;
}
/// <summary>
/// Updates the uploaded ODLC object and image on the server. Returns the updated object.
/// </summary>
/// <param name="odlcObject"></param>
/// <returns>
/// Null if invalid call. The ODLC object being uploaded with any updated fields, or error codes.
/// </returns>
private async Task <ODLC> updateODLC(ODLC odlcObject)
{
if (!gLoggedIn)
{
return(null);
}
//If the ID is not set, then the object has not been uploaded yet.
if (odlcObject.ID == null)
{
return(null);
}
ODLC odlcResponse = null;
string id = odlcObject.ID.ToString();
try
{
StringContent content = new StringContent(odlcObject.getJson(), Encoding.UTF8, "application/json");
HttpResponseMessage response = await gHttpClient.PutAsync(Properties.Settings.Default.url + "/api/odlcs/" + id, content);
if (response.StatusCode == HttpStatusCode.OK)
{
string temp = await response.Content.ReadAsStringAsync();
odlcResponse = JsonConvert.DeserializeObject <ODLC>(await response.Content.ReadAsStringAsync());
odlcResponse.ServerResponse = response.ReasonPhrase;
}
else
{
//Response code was not "ok"
MessageBox.Show("Error: " + response.StatusCode.ToString(), "Error", MessageBoxButton.OK, MessageBoxImage.Error);
return(null);
}
//await postImage(odlcObject, (int)odlcObject.ID);
}
catch (Exception Ex)
{
//Log something
return(null);
}
return(odlcResponse);
}
