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#ifndef BBGENERATIONS_H

#define BBGENERATIONS_H

#include <QVector>

class ResourceUnit; // forward

class BBGenerations

{

public:

    BBGenerations();

    /// calculate the number of barbeetle generations for the given resource unit.

    double calculateGenerations(const ResourceUnit *ru);

    /// number of sister broods (reaching at least 60% of thermal development)

    int sisterBroods() const { return mNSisterBroods; }

    /// number consecutive broods (reaching at least 60% of thermal development)

    int filialBroods() const { return mNFilialBroods; }

    /// returns true, if the sister broods of the same generation were also developed

    /// (e.g. 2 gen + 2 sister -> true, 2 gen + 1 sister -> false)

    bool hasSisterBrood() const { return mNSisterBroods == mNFilialBroods && mNSisterBroods>0; }

    /// number of cold days (tmin < -15 degrees) in the first half of the year

    int frostDaysEarly() const { return mFrostDaysEarly; }

    /// number of cold days (tmin < -15 degrees) in the second half of the year

    int frostDaysLate() const { return mFrostDaysLate; }

private:

    void calculateBarkTemperature(const ResourceUnit *ru);

    struct BBGeneration {

        BBGeneration(): start_day(-1), gen(0), is_sister_brood(false), value(0.) {}

        BBGeneration(int start, bool is_filial, int generation) { start_day=start; is_sister_brood=is_filial; value=0.; gen=generation; }

        int start_day;

        int gen;

        bool is_sister_brood;

        double value;

    };

    QVector<BBGeneration> mGenerations;

    int mNSisterBroods; ///< number of sister broods (reaching at least 60% of thermal development)

    int mNFilialBroods; ///< number consecutive broods (reaching at least 60% of thermal development)

    int mFrostDaysEarly; ///< frost days (tmin<-15) from Jan 1 to summer

    int mFrostDaysLate; ///< frost days from summer to Dec 31

    double mEffectiveBarkTemp[366];

};

#endif // BBGENERATIONS_H