PN

package ordination;

import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;

public class PN extends Medication {
    private double numberOfUnits;
    private ArrayList<LocalDate> numberOfTimes = new ArrayList<>();
    private Medicine medicine;

    public PN(LocalDate start, LocalDate end, Medicine medicine, double number) {
        super(start, end, medicine);
        this.numberOfUnits = number;
        this.medicine = medicine;
    }

    public ArrayList<LocalDate> getnumberOfTimes() {
        return numberOfTimes;
    }

    /**
     * Register that a dosis have been given on the day givenThe
     *
     * @param givenThe
     * @return true if givenThe is within the medications valid period, and the date is remembered. Else return false, and the date is ignored
     */
    public boolean givDosis(LocalDate givenThe) {
        if (givenThe.isEqual(getStartDay()) || givenThe.isAfter(getStartDay()) && givenThe.isBefore(getEndDay())
                || givenThe.isEqual(getEndDay())) {
            numberOfTimes.add(givenThe);
            return true;
        } else {
            return false;
        }
    }

    public double dayDosis() {
        LocalDate first = null;
        LocalDate last = null;
        if (numberOfTimes.isEmpty()) {
            return 0.0;
        }
        for (LocalDate s : numberOfTimes) {
            if (first == null || s.isBefore(first)) {
                first = s;
            }
            if (last == null || s.isAfter(first)) {
                last = s;
            }
        }
        int numberofdays = (int) ChronoUnit.DAYS.between(first, last) + 1;
        double daydosis = getNumberOfTimesGiven() * getNumberOfUnits() / numberofdays;
        return daydosis;
    }

    public double totalDosis() {
        double totaldosis = getNumberOfTimesGiven() * getNumberOfUnits();
        return totaldosis;
    }

    public int getNumberOfTimesGiven() {
        int numberoftimesint = 0;
        for (LocalDate s : numberOfTimes) {
            numberoftimesint++;
        }
        return numberoftimesint;
    }

    public double getNumberOfUnits() {
        return numberOfUnits;
    }

    @Override
    public Medicine getMedicine() {
        return medicine;
    }

    @Override
    public String getType() {
        return "PN";
    }
}