public async Task PopulateTimedWorkItemOccurences(RecurringWorkItem workItem, int userId, List <int> assigneeUserIds, DateTime now, bool populateWorkItemAssignments = true)
{
var existingWorkItems = (await _workItemRepository.GetWorkItems(workItem.Id, now)).ToList();
var calculatedWorkItems = new List <WorkItem>();
for (var scheduledAt = workItem.RecurStart.Value; scheduledAt <= workItem.RecurEnd.Value; scheduledAt = AddInterval(scheduledAt, workItem.RecurInterval.Value, workItem.RecurIntervalCount.Value))
{
if (scheduledAt >= now)
{
calculatedWorkItems.Add(new WorkItem()
{
AdminGroupId = workItem.AdminGroupId,
CompletionMode = workItem.CompletionMode,
CreatedAt = now,
CreatedByUserId = userId,
DescriptionMarkup = workItem.DescriptionMarkup,
Location = workItem.Location,
Name = workItem.Name,
PatrolId = workItem.PatrolId,
RecurringWorkItemId = workItem.Id,
ScheduledAt = scheduledAt,
});
}
}
var allAssignments = await _workItemRepository.GetWorkItemAssignments(workItem.Id, now);
var missing = calculatedWorkItems.Where(x => !existingWorkItems.Any(y => y.ScheduledAt == x.ScheduledAt)).ToList();
var toRemove = existingWorkItems.Where(x => x.ScheduledAt > now && !calculatedWorkItems.Any(y => y.ScheduledAt == x.ScheduledAt));
var toUpdate = existingWorkItems.Where(x => x.ScheduledAt > now && calculatedWorkItems.Any(y => y.ScheduledAt == x.ScheduledAt));
foreach (var wi in missing)
{
await _workItemRepository.InsertWorkItem(wi);
if (populateWorkItemAssignments && assigneeUserIds != null)
{
foreach (var uid in assigneeUserIds)
{
var assignment = new WorkItemAssignment()
{
WorkItemId = wi.Id,
UserId = uid
};
await _workItemRepository.InsertWorkItemAssignment(assignment);
}
}
}
foreach (var wi in toRemove)
{
var toRemoveAssignments = allAssignments.Where(x => x.WorkItemId == wi.Id).ToList();
foreach (var wis in toRemoveAssignments)
{
await _workItemRepository.DeleteWorkItemAssignment(wis);
}
await _workItemRepository.DeleteWorkItem(wi);
}
foreach (var wi in toUpdate)
{
wi.AdminGroupId = workItem.AdminGroupId;
wi.CompletionMode = workItem.CompletionMode;
wi.DescriptionMarkup = workItem.DescriptionMarkup;
wi.Location = workItem.Location;
wi.Name = workItem.Name;
await _workItemRepository.UpdateWorkItem(wi);
if (populateWorkItemAssignments)
{
var assignees = allAssignments.Where(x => x.WorkItemId == wi.Id).ToList();
if (assigneeUserIds != null)
{
await assignees.DifferenceWith(assigneeUserIds,
(a, id) => a.UserId == id,
id => _workItemRepository.InsertWorkItemAssignment(new WorkItemAssignment()
{
WorkItemId = wi.Id,
UserId = id
}), wia => _workItemRepository.DeleteWorkItemAssignment(wia));
}
}
}
}
