backend/buisnesslogic/src/main/java/com/plannaplan/services/CommisionService.java

package com.plannaplan.services;

import java.util.List;
import java.util.Optional;

import com.plannaplan.entities.Commision;
import com.plannaplan.entities.User;
import com.plannaplan.repositories.AssignmentRepository;
import com.plannaplan.repositories.CommisionRepository;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 *  Service of CommisionService which can save commision, get user's commisions, get newest user's commision, get ammount of commisions.
 */

@Service
public class CommisionService {
    @Autowired
    private CommisionRepository repo;
    @Autowired
    private AssignmentRepository aRepository;

    public CommisionService() {
    }

    /*
     * save
     *
     * @param commision which assignment should be save in service
     * @return commision
     */
    public Commision save(Commision commision) {
        Optional<Commision> lastCommision = this.getNewestCommision(commision.getCommisionOwner());
        if (lastCommision.isPresent()) {
            final Commision lastCom = lastCommision.get();
            lastCom.getAssignments().forEach(assignment -> {
                assignment.setPastAssignment(true);
                this.aRepository.save(assignment);
            });
        }
        this.repo.save(commision);
        return commision;

    }

    /*
     * getUsersCommisions
     * Return given users id
     */
    public List<Commision> getUsersCommisions(User user) {
        return this.repo.getUsers(user.getId());
    }

    /*
     * getNewestCommision
     * Return the newest commision of the user
     */
    public Optional<Commision> getNewestCommision(User user) {
        return this.repo.getNewestCommision(user.getId()).stream().findFirst();
    }

    /*
     * getCommisionsAmmount
     * Return ammount of commisions
     */
    public long getCommisionsAmmount() {
        return this.repo.count();
    }
}