package com.nayidisha.pointy.services.reporting;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.inject.Inject;
import org.joda.time.DateMidnight;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import com.nayidisha.pointy.dao.patient.PatientDAO;
import com.nayidisha.pointy.domain.Patient;
import com.nayidisha.pointy.dto.VisitFrequency;
@Service
public class ReportingServiceImpl implements ReportingService {
private static Logger LOG = LoggerFactory.getLogger(ReportingServiceImpl.class);
private PatientDAO patientDAO;
@Inject
public ReportingServiceImpl(PatientDAO patientDAO) {
this.patientDAO = patientDAO;
}
@Override
public List<VisitFrequency> getVisitFrequency() {
List<VisitFrequency> visitFrequencyList = new ArrayList<VisitFrequency>();
List<Patient> patientList = patientDAO.loadAll();
Map<Date, Integer> freqMap = new Hashtable<Date, Integer>();
for (Patient patient : patientList) {
if (patient.valid()){
DateMidnight dm = new DateMidnight(patient.getVisitDate());
int i = (freqMap.get(dm.toDate()) == null? 0: freqMap.get(dm.toDate()));
freqMap.put(dm.toDate(), ++i);
}
}
Set<Date> keys = freqMap.keySet();
for (Date date : keys) {
VisitFrequency v = new VisitFrequency();
v.setVisitDate(date);
int i = freqMap.get(date);
v.setNumberOfVisits(i);
LOG.debug("VisitDate: " + date + ", Freq: " + i);
visitFrequencyList.add(v);
}
LOG.debug("Found " + visitFrequencyList.size() + " visits!");
return visitFrequencyList;
}
}