public Date getNextPickupDateByWasteTypeLabel(String wasteTypeLabel) {
Pickup pickup = getPickupByWasteTypeLabel(wasteTypeLabel);
if (pickup == null) return null;
List<String> dates = pickup.getDates();
if (dates.isEmpty()) return null;
for (int i = 0; i <= 32; i++) {
Date date = Date.inDays(i);
String dateAsString = date.toString();
if (dates.contains(dateAsString)) return date;
}
return null;
}
public void addDate(Date date) {
Set<String> dates = new HashSet<String>(getDates());
dates.add(date.toString());
json.put("dates", Utl.sort(dates));
}