private void UpdateGroupDisplayElements(TipInfo nextTip)
{
GroupNameLabel.Content = $"{nextTip.groupName}";
GroupNameCheckBox.IsChecked = !_tipHistoryManager.IsTipGroupExcluded(nextTip.groupId);
}
private TipInfo GetNextTipAlgorithm(string lastSeenGroupId)
{
// Algorithm:
// Go through tips in order, *order determined by priGroup, then natural list ordering, round-robin by rowId.
for (int priorityBand = 2; priorityBand <= (3 + 3); priorityBand++)
{
// Loop increasing scanRow until a scan of a row returns no tips. Then move to next priorityBand.
int scanRow = 0;
bool tipFound;
do
{
// Search the whole priorityBand (ie, [3][1], [2][2], [1][3] for each scanRow.
// If a viable item is found, return it immediately.
// If the scan finishes and there's a holdItem, return it.
// If tips found, but none to show scan whoe priorityBand at next scanRow.
// Stop when no tips found in the whole priorityBand for the given scanRow.
tipFound = false;
TipInfo sameGroupTip = null;
for (int i = 1; i <= 3; i++)
{
int groupPri = priorityBand - i;
if (groupPri < 1 || groupPri > 3)
{
break;
}
int tipPri = priorityBand - groupPri;
if (tipPri < 1 || tipPri > 3)
{
break;
}
// For each group in the groupPri bucket,
List <GroupOfTips> tipGroups = TipManager.GetPrioritizedTipGroups()[groupPri - 1];
if (tipGroups == null)
{
// No groups in this group priority
continue;
}
foreach (GroupOfTips tipGroup in tipGroups)
{
// If Group is an excluded group, skip to the next group
if (IsExcludedGroup(tipGroup.groupId))
{
// Group exlcuded. Move to the next group.
continue;
}
// Look into the tipPri bucket (if it exists)
List <TipInfo>[] tipGroupTipsPriList = tipGroup.TipsPriList;
if (tipGroupTipsPriList == null || tipGroupTipsPriList.Length < tipPri)
{
// This tipGroup has no tips at this tipPri level. Move to next group.
continue;
}
List <TipInfo> tipsAtPriBand = tipGroupTipsPriList[tipPri - 1];
// Look at scanRow posn for a tip
if (tipsAtPriBand == null || scanRow >= tipsAtPriBand.Count)
{
// No tips left in this group at this scanRow. Move to the next group.
continue;
}
// Assume tipInfo will not be null at this point.
TipInfo tipInfo = tipsAtPriBand[scanRow];
// TipInfo is not null! We found a tip at this scanRow in this tipPri in this groupPri
// Note: Tip might have already been seen.
tipFound = true;
// If we've seen the tip, move to the next group.
if (TipHistoryManager.HasTipBeenSeen(tipInfo.globalTipId))
{
// Already seen this tip. Skip to the next group.
continue;
}
// If tip is from same group as last tip, hold then show if priGroup exhausted at that scanRow
// If tip is NOT from the same group as the last tip shown, we have a good tip to return.
if (!WasFromLastSeenTipGroup(tipInfo, lastSeenGroupId))
{
return(tipInfo);
}
// Hold this tip. It should be shown if no other tip found at this scanRow for groupPri/tipPri.
sameGroupTip = tipInfo;
}
}
// If we are holding a tip from the last seen tip group, we can return this tip now,
// as it is more important than any tip from the next priorityBand.
if (sameGroupTip != null)
{
return(sameGroupTip);
}
// Prepare to scan the priorityBand at the next scanRow.
scanRow++;
// If no tips were found at this scan row, we have exhuasted the scan for this priorityBand.
} while (tipFound);
}
// if none found at the priGroup level, go to next priGroup level and search again.
return(null);
}
private bool WasFromLastSeenTipGroup(TipInfo tipInfo, string lastSeenGroupId)
{
return(tipInfo.groupId == lastSeenGroupId);
}
public string GetNextTipPath()
{
TipInfo tipInfo = GetNextTip();
return(tipInfo?.contentUri);
}
private string GetGlobalTipId(TipInfo tipInfo)
{
return($"{tipInfo.groupId}{GLOBAL_TIP_ID_SEPARATOR}{tipInfo.tipId}");
}
