election.h

#ifndef ELECTION_H
#define ELECTION_H
 
// Shared Library Support
#include "star/star_base_export.h"
 
// Qt Includes
#include "qdatetime.h"
#include <QString>
#include <QList>
 
// Project Includes
#include "star/rank.h"
 
namespace Star
{
 
class STAR_BASE_EXPORT Election
{
//-Inner Classes----------------------------------------------------------------------------------------------------
public:
    struct Vote;
    struct Voter;
    class Ballot;
    class Builder;
 
//-Instance Variables--------------------------------------------------------------------------------------------------
private:
    QString mName;
    QList<Ballot> mBallots;
    int mSeats;
    QMap<QString, int> mTotals;
    QList<Rank> mScoreRankings;
 
//-Constructor---------------------------------------------------------------------------------------------------------
public:
    Election();
 
//-Instance Functions-------------------------------------------------------------------------------------------------
public:
    bool isValid() const;
 
    QString name() const;
    QStringList candidates() const;
    const QList<Ballot>& ballots() const;
    int seatCount() const;
 
    int totalScore(const QString& candidate) const;
    const QList<Rank>& scoreRankings() const;
};
 
struct Election::Voter
{
    QString name;
    QString anonymousName;
};
 
struct Election::Vote
{
    QString candidate;
    int score = 0;
};
 
class STAR_BASE_EXPORT Election::Ballot
{
    friend class Election::Builder;
//-Instance Variables--------------------------------------------------------------------------------------------------
private:
    Voter mVoter;
    QHash<QString, int> mVotes;
 
//-Constructor--------------------------------------------------------------------------------------------------------
private:
    Ballot();
 
//-Instance Functions-------------------------------------------------------------------------------------------------
public:
    const Voter& voter() const;
 
    int score(const QString& candidate) const;
    QString preference(const QString& candidateA, const QString& candidateB) const;
};
 
class STAR_BASE_EXPORT Election::Builder
{
//-Instance Variables--------------------------------------------------------------------------------------------------
private:
    Election mConstruct;
 
//-Constructor---------------------------------------------------------------------------------------------------------
public:
    Builder(const QString& name = QString());
 
//-Instance Functions-------------------------------------------------------------------------------------------------
public:
    Builder& wName(const QString& name);
    Builder& wBallot(const Voter& voter, const QList<Vote>& votes);
    Builder& wSeatCount(int count);
    void reset();
    Election build();
};
 
}
 
#endif // ELECTION_H