void HandleDoneCommand()
{
string userMessage = null;
bool doCollapseBlock, doRemoveBlock = false, doMarkDone = false;
//note we will save VM to persistent so we project using the correct repeats, but then we will modify the VM again
VM.WriteToPersistent();
//handle repeated task projection
if (VM.Persistent.Repeats != null)
{
var projector = new RepeatProjector();
string nextTime = projector.AdvanceTime(VM.Persistent.Box.BoxTime, VM.Persistent.Repeats);
if (nextTime != null)
{
//reschedule but don't mark done
VM.BoxTime_Date.Date = nextTime;
VM.BoxTime_Time.Time = nextTime;
userMessage = "Recheduled for " + DateUtil.ToReadableDate(nextTime, includeDOW: true);
doCollapseBlock = true;
}
else
{
//reached the last instance of a repeated task
doMarkDone = true;
doCollapseBlock = true;
}
}
else
{
doMarkDone = doCollapseBlock = doRemoveBlock = true;
}
//check if it is possible to really mark it done
if (doMarkDone)
{
userMessage = "Task done!";
long boxId = VM.Persistent.Box.RowId;
bool hasUndoneChildren = boxId > 0 && Globals.UI.CheckBoxesExist(parentRowId: boxId, filterByNotDone: true);
if (hasUndoneChildren)
{
doMarkDone = false;
doCollapseBlock = doRemoveBlock = false;
userMessage = "Cannot complete task because it has child items that are not done";
}
else if (VM.Importance == Constants.IMPORTANCE_HIGH)
{
if (!VisualUtils.Confirm("Careful: task is marked as 'keep-alive'. About to remove from calendar!"))
{
doMarkDone = false;
doCollapseBlock = doRemoveBlock = false;
userMessage = null;
}
}
}
if (doMarkDone)
{
VM.DoneDate = DateUtil.ToYMD(DateTime.Today);
}
if (doCollapseBlock)
{
bool saveOK = ChangeMode(Mode.ReadOnly, true);
if (saveOK)
{
CollapseRequested(this, doRemoveBlock);
}
else
{
//edge case: save failed because it has no title, so create a title so it can be saved as done
if (string.IsNullOrWhiteSpace(VM.Title))
{
VM.Title = VM.IsUnclass ? "quick note" : "task";
saveOK = ChangeMode(Mode.ReadOnly, true);
if (saveOK)
{
CollapseRequested(this, doRemoveBlock);
}
else
{
userMessage = "Saving failed, so cannot mark it as done";
}
}
}
}
if (userMessage != null)
{
UIGlobals.Do.ShowTimedMessge(userMessage);
}
}