source: sources/app/src/main/java/parkup/services/ParkingZoneService.java@ 9504a09

package parkup.services;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.stereotype.Service;
import parkup.data.ParkingZoneLocation;
import parkup.entities.ParkingSpace;
import parkup.entities.ParkingZone;
import parkup.repositories.ParkingZoneRepository;

import javax.transaction.Transactional;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;

@Service
public class ParkingZoneService {
    private final ParkingZoneRepository parkingZoneRepository;

    @Autowired
    public ParkingZoneService(ParkingZoneRepository parkingZoneRepository) {
        this.parkingZoneRepository = parkingZoneRepository;
    }

    public List<ParkingZone> getAllParkingZones() {
        return parkingZoneRepository.findAll();
    }

    public ParkingZone findById(int parkingZoneId) {
        Optional<ParkingZone> parkingZone = Optional.ofNullable(this.parkingZoneRepository.findByPzId(parkingZoneId));
        return parkingZone.orElse(null);
    }

    public List<String> getAllParkingZoneNames() {
        List<ParkingZone> parkingZones = this.parkingZoneRepository.findAll();
        List<String> parkingZonesNames = new ArrayList<>();
        for (ParkingZone pz : parkingZones){
            parkingZonesNames.add(pz.getPzName());
        }
        return parkingZonesNames;
    }

    public Optional<ParkingZone> addParkingZone(ParkingZone parkingZone) {   //zavisno vo koj grad ili opstina i napravi proverki pred dodavanje, implementiraj u naredna faza
        Optional<ParkingZone> parkingZoneOpt = Optional.ofNullable(parkingZoneRepository.findByPzName(parkingZone.getPzName()));
        if (parkingZoneOpt.isPresent()) {
            throw new IllegalStateException("Name already taken, try adding a ParkingZone with a different name");
        } else {
            System.out.println(parkingZone);
            parkingZoneRepository.save(parkingZone);
        }
        return parkingZoneOpt;
    }

    public ParkingZone addParkingZoneNameOnly(String name) {
        Optional<ParkingZone> parkingZoneOpt = Optional.ofNullable(parkingZoneRepository.findByPzName(name));
        if (parkingZoneOpt.isPresent()) {
            throw new IllegalStateException("Name already taken, try adding a ParkingZone with a different name");
        } else {
            ParkingZone parkingZone = new ParkingZone(name.trim());
            parkingZoneRepository.save(parkingZone);
            return parkingZone;
        }
    }

    //TODO prati niza od objekti ParkingSpaces i prati objekt ParkingZoneLocation
    @Transactional
    public ParkingZone updateParkingZone(int parkingZoneId, String pzName, int price, int capacity,
                                         String location, int from, int to, String color,
                                         List<ParkingSpace> parkingSpaces, ParkingZoneLocation parkingZoneLocation) {
        Optional<ParkingZone> parkingZoneOpt = Optional.ofNullable(parkingZoneRepository.findByPzId(parkingZoneId));
        if (parkingZoneOpt.isPresent()) {
            ParkingZone parkingZoneNov = parkingZoneRepository.findByPzId(parkingZoneId);
            if (pzName != null && pzName.length() > 1 && !Objects.equals(parkingZoneNov.getPzName(), pzName)) {
                Optional<ParkingZone> parkingZoneOpt1 = Optional.ofNullable(parkingZoneRepository.findByPzName(pzName));
                if (parkingZoneOpt1.isPresent()) {
                    throw new IllegalStateException("There is already a ParkingZone with the same name");
                }

                parkingZoneNov.setPzName(pzName);
            }

            if (price != 0 && !Objects.equals(parkingZoneNov.getPrice(), price)) {
                parkingZoneNov.setPrice(price);
            }

            if (capacity != 0 && !Objects.equals(parkingZoneNov.getCapacity(), capacity)) {
                parkingZoneNov.setCapacity(capacity);
            }

            if (location != null && location.length() > 0 && !Objects.equals(parkingZoneNov.getLocation(), location)) {
                parkingZoneNov.setLocation(location);
            }

            if (from != 0 && !Objects.equals(parkingZoneNov.getFrom(), from)) {
                parkingZoneNov.setFrom(from);
            }

            if (to != 0 && !Objects.equals(parkingZoneNov.getTo(), to)) {
                parkingZoneNov.setTo(to);
            }

            if (color != null && color.length() > 0 && !Objects.equals(parkingZoneNov.getColor(), color)) {
                parkingZoneNov.setColor(color);
            }

            if(parkingZoneLocation!=null){
                parkingZoneNov.setParkingZoneLocation(parkingZoneLocation);
            }

            if(!parkingSpaces.isEmpty()){
                //TODO kreiraj lista od parkingSpaces, ni gi prakja false isHandicaped i isTaken
                parkingZoneNov.setParkingSpaces(parkingSpaces);
            }

            return parkingZoneNov;
        } else {
            throw new IllegalStateException("There ParkingZone does not exist");
        }
    }

    @Transactional
    public Optional<ParkingZone> deleteParkingZone(int parkingZoneId) {
        Optional<ParkingZone> parkingZoneOpt = Optional.ofNullable(parkingZoneRepository.findByPzId(parkingZoneId));
        if (parkingZoneOpt.isPresent()) {
            parkingZoneRepository.deleteByPzId(parkingZoneId);
        } else {
            throw new IllegalStateException("ParkingZone doesn't exist, therefore can't be deleted");
        }
        return parkingZoneOpt;
    }
}