public StrokeModel GetStroke(string id)
{
StrokeModel stroke;
StrokesMap.TryGetValue(id, out stroke);
return(stroke);
}
public void UpdateStroke(string id, StrokeModel stroke)
{
if (stroke != null)
{
stroke.AuthorId = AuthService.CurrentUser?.Id ?? AuthService.OfflineClientId;
stroke.LastModificationDate = DateTime.Now;
Logger.Debug($"Adding stroke ${id}");
if (IsOffline)
{
StrokesMap[id] = stroke;
}
}
else
{
Logger.Debug($"Removing stroke ${id}");
if (IsOffline)
{
StrokeModel _;
StrokesMap.TryRemove(id, out _);
}
}
StrokesToUpdate[id] = stroke;
StrokesMapOverride[id] = stroke;
if (IsOffline)
{
StrokesUpdated?.Invoke();
}
}
/// <summary>
/// Merges the strokes map with the strokes map override to give the most recent strokes list available.
/// </summary>
public StrokeModelsList GetMergedStrokeMaps()
{
StrokeModel _;
foreach (var stroke in StrokesMapOverride)
{
if (stroke.Value == null)
{
StrokesMap.TryRemove(stroke.Key, out _);
}
else
{
StrokesMap[stroke.Key] = stroke.Value;
}
}
var strokes = StrokesMap.Select(x => x.Value).ToList();
strokes.Sort((x, y) => DateTime.Compare(x.CreatedDate, y.CreatedDate));
return(strokes);
}
private void PurgeOverrideMap()
{
StrokeModel _;
foreach (var stroke in StrokesMapOverride)
{
if (stroke.Value != null && StrokesMap.ContainsKey(stroke.Key))
{
StrokeModel currentStroke;
StrokesMap.TryGetValue(stroke.Value.Id, out currentStroke);
if (currentStroke.LastModificationDate >= stroke.Value.LastModificationDate)
{
StrokesMapOverride.TryRemove(stroke.Key, out _);
}
}
else if (stroke.Value == null && !StrokesMap.ContainsKey(stroke.Key))
{
StrokesMapOverride.TryRemove(stroke.Key, out _);
}
}
}
