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#ifndef RESOURCEUNITSPECIES_H

#define RESOURCEUNITSPECIES_H

#include "production3pg.h"

#include "standstatistics.h"

#include "speciesresponse.h"

#include "establishment.h"

class Species;

class ResourceUnit;

class ResourceUnitSpecies

{

public:

    ResourceUnitSpecies() : mLAIfactor(0.), mSpecies(0), mRU(0) {}

    void setup(Species *species, ResourceUnit *ru);

    // access

    const SpeciesResponse *speciesResponse() const { return &mResponse; }

    const Species *species() const { return mSpecies; } ///< return pointer to species

    const ResourceUnit *ru() const { return mRU; } ///< return pointer to resource unit

    const Production3PG &prod3PG() const { return m3PG; } ///< the 3pg production model of this speies x resourceunit

    StandStatistics &statistics() { return mStatistics; } ///< statistics of this species on the resourceunit

    StandStatistics &statisticsDead() { return mStatisticsDead; } ///< statistics of died trees

    StandStatistics &statisticsMgmt() { return mStatisticsMgmt; } ///< statistics of removed trees

    const StandStatistics &constStatistics() const { return mStatistics; } ///< const accessor

    const StandStatistics &constStatisticsDead() const { return mStatisticsDead; } ///< const accessor

    const StandStatistics &constStatisticsMgmt() const { return mStatisticsMgmt; } ///< const accessor

   // actions

    void updateGWL();

    double removedVolume() const { return mRemovedGrowth; } ///< sum of volume with was remvoved because of death/management (m3)

    double LAIfactor() const { return mLAIfactor; } ///< relative fraction of LAI of this species (0..1)

    void setLAIfactor(const double newLAIfraction) { mLAIfactor=newLAIfraction; if (mLAIfactor<0 || mLAIfactor>1.00001) qDebug() << "invalid LAIfactor"<<mLAIfactor; }

    // properties

    double leafArea() const; ///< total leaf area of the species on the RU (m2).

    // action

    void calculate(const bool fromEstablishment=false); ///< calculate response for species, calculate actual 3PG production

    void calclulateEstablishment(); ///< perform establishment calculations

private:

    double mLAIfactor; ///< relative amount of this species' LAI on this resource unit (0..1). Is calculated once a year.

    double mRemovedGrowth; ///< m3 volume of trees removed/managed (to calculate GWL)

    StandStatistics mStatistics; ///< statistics of a species on this resource unit

    StandStatistics mStatisticsDead; ///< statistics of died trees (this year) of a species on this resource unit

    StandStatistics mStatisticsMgmt; ///< statistics of removed trees (this year) of a species on this resource unit

    Production3PG m3PG; ///< NPP prodution unit of this species

    SpeciesResponse mResponse; ///< calculation and storage of species specific respones on this resource unit

    Establishment mEstablishment; ///< establishment for seedlings and sapling growth

    Species *mSpecies; ///< speices

    ResourceUnit *mRU; ///< resource unit

    int mLastYear;

};

#endif // RESSOURCEUNITSPECIES_H