/// <summary>
/// Figure out the group(s) this item belongs in
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
private IEnumerable <DashboardGroupViewModel> GetTargetGroups(ElementStateViewModel item)
{
IEnumerable <DashboardGroupViewModel> targets = null;
if (!string.IsNullOrEmpty(item.Group))
{
targets = _groups.Where(g => g.Id == item.Group);
}
if (targets == null || !targets.Any())
{
targets = _defaultGroups;
}
return(targets);
}
/// <summary>
/// Add item to a group (or groups)
/// </summary>
/// <param name="item"></param>
private void AssignGroup(ElementStateViewModel item)
{
var targetGroups = GetTargetGroups(item);
// Remove from any groups this item already exists in (excluding the 'target' groups)
foreach (var group in _groups.Where(g => !targetGroups.Contains(g) && g.ElementStates.Select(i => i.Id).Contains(item.Id)))
{
group.ElementStates.Remove(item);
}
// Add to target groups
foreach (var group in targetGroups)
{
if (!group.ElementStates.Contains(item))
{
group.ElementStates.Add(item);
}
}
}
/// <summary>
/// Update / Add DashItems based on source. Optionally remove those not in the list.
/// </summary>
private void Update(IEnumerable <ElementState> source, bool isFullRefresh = false)
{
foreach (var elementState in source)
{
var definition = GetElementDefinition(elementState.ElementId);
// @todo: Having multiple test definitions with same test id on same dash breaks this
var item = _groups.SelectMany(g => g.ElementStates).Where(d => d.Id == elementState.Id).Distinct().SingleOrDefault();
if (item == null)
{
IEnumerable <Map> metaData = null;
var test = _dashboard.Tests?.SingleOrDefault(t => t.Id == elementState.Id);
if (test == null)
{
metaData = _dashboard.Mapping;
}
else
{
metaData = test.Mapping;
}
item = new ElementStateViewModel(_dashboard, definition, elementState.Id);
}
item.Update(elementState);
AssignGroup(item);
}
if (isFullRefresh)
{
// Remove any DashItems that do not appear in source
foreach (var id in _groups.SelectMany(g => g.ElementStates).Where(i => !source.Select(s => s.Id).Contains(i.Id)).Select(x => x.Id).ToArray())
{
foreach (var group in _groups)
{
group.ElementStates.Remove(group.ElementStates.SingleOrDefault(i => i.Id == id));
}
}
}
LastUpdate = DateTime.Now;
}
