private IDictionary <Guid, Guid?> ExerciseCredits(Guid creditId, IEnumerable <Guid> hierarchyPath, bool adjustAllocation, Guid exercisedById, IEnumerable <Guid> exercisedOnIds, Guid?referenceId)
{
var exercisedCredits = new Dictionary <Guid, ExercisedCredit>();
var exercisedOwnerIds = new List <Guid>();
var allocations = _repository.GetActiveAllocations(hierarchyPath, new[] { creditId });
var originalRemainingQuantities = allocations.SelectMany(a => a.Value).ToDictionary(a => a.Id, a => a.RemainingQuantity);
foreach (var exercisedOnId in exercisedOnIds)
{
// Iterate through the owners looking for someone who can exercise the credit.
ExercisedCredit exercisedCredit = null;
foreach (var ownerId in hierarchyPath)
{
exercisedCredit = ExerciseCredit(allocations[ownerId], adjustAllocation, exercisedById, exercisedOnId, referenceId);
if (exercisedCredit != null)
{
if (!exercisedOwnerIds.Contains(ownerId))
{
exercisedOwnerIds.Add(ownerId);
}
break;
}
}
exercisedCredits[exercisedOnId] = exercisedCredit;
}
// Create all exercised credits.
_repository.CreateExercisedCredits(from c in exercisedCredits where c.Value != null select c.Value);
// Now update all allocations where needed.
var changedAllocations = from a in allocations.SelectMany(a => a.Value)
where a.RemainingQuantity != originalRemainingQuantities[a.Id]
select a;
if (changedAllocations.Any())
{
_repository.UpdateAllocations(changedAllocations);
}
// Fire events.
if (exercisedOwnerIds.Count > 0)
{
var handlers = CreditExercised;
if (handlers != null)
{
foreach (var exercisedOwnerId in exercisedOwnerIds)
{
handlers(this, new CreditExercisedEventArgs(creditId, exercisedOwnerId, (from a in changedAllocations where a.OwnerId == exercisedOwnerId select a).Any()));
}
}
}
return(exercisedCredits.ToDictionary(c => c.Key, c => c.Value == null ? (Guid?)null : c.Value.Id));
}