public async Task CancelShift(int scheduledShiftId)
{
var scheduledShift = await _shiftRepository.GetScheduledShift(scheduledShiftId);
var scheduledShiftAssignments = await _shiftRepository.GetScheduledShiftAssignmentsForScheduledShift(scheduledShiftId);
var patrol = await _patrolRepository.GetPatrol(scheduledShift.PatrolId);
foreach (var ssa in scheduledShiftAssignments)
{
await _shiftRepository.DeleteScheduledShiftAssignment(ssa);
//send notification to any trainees that the shift has been cancelled
var trainees = await _shiftRepository.GetTrainees(ssa.Id);
if (trainees.Any() && ssa.AssignedUserId.HasValue)
{
var trainer = await _userRepository.GetUser(ssa.AssignedUserId.Value);
var shift = await _shiftRepository.GetScheduledShift(ssa.ScheduledShiftId);
var traineeUsers = await _userRepository.GetUsers(trainees.Select(x => x.TraineeUserId).ToList());
await _emailService.SendTrainerShiftRemoved(trainer, traineeUsers.ToList(), patrol, shift);
}
}
//remove any work items related to the shift
await _shiftWorkItemService.RemoveWorkItemsFromShiftOccurence(scheduledShift);
await _shiftRepository.DeleteScheduledShift(scheduledShift);
//notify users in the shift
var assignedUsers = await _userRepository.GetUsers(scheduledShiftAssignments.Where(x => x.AssignedUserId.HasValue).Select(x => x.AssignedUserId.Value).ToList());
await _emailService.SendShiftCancelled(assignedUsers.ToList(), patrol, scheduledShift);
}