#ifndef DATAMANAGER_H
#define DATAMANAGER_H

#include "token.h"
#include "subject.h"
#include "requestmanager.h"
#include "databasemanager.h"
#include <QJsonDocument>
#include <qjsonarray.h>


class DataManager : public QObject
{

    Q_OBJECT

public:
    DataManager();

    void getAndSetLastSync();
    void fillFullTokensColnod(QString jsonResponse);

    void fillTokensColnod(QString jsonResponse);
    void fillSubjectsColnod(QString jsonResponse);
    void fillSubjectsToDeleteColnod(QString jsonResponse);
    void fillTokensToDeleteColnod(QString jsonResponse);

    void fillTokensDB();
    void fillSubjectsDB();
    void fillSubjectsToDeleteDB();
    void fillTokensToDeleteDB();

    void pushSubjectsToDB();
    void pushTokensToDB();
    void deleteSubjectsFromDB();
    void deleteTokensFromDB();

    void updateLastSync();

    bool haveData();
    bool haveChangedData();
    bool haveProcessData();

    void emptyDatabase();
    void clear();

    void loadTokensToAdd();
    void loadTokensToDelete();

    QHash<QString, QPointer<Token>>* getTokens() {return &tokensColnod;}
    QList<QString>* getTokensToDelete() {return &tokensToDeleteColnod;}

    const uint64_t &getLastSync() {return lastSync;}

private:
    DatabaseManager *db = nullptr;

    uint64_t lastSync;

    QHash<QString, QPointer<Subject>> subjectsColnod;
    QHash<QString, QPointer<Token>> tokensColnod;
    QHash<QString, QPointer<Token>> fullTokensColnod;
    QHash<QString, QPointer<Subject>> subjectsDB; // in future
    QHash<QString, QPointer<Token>> tokensDB;


    QList<QString> subjectsToDeleteColnod;
    QList<QString> tokensToDeleteColnod;
    QList<QString> subjectsToDeleteDB;
    QList<QString> tokensToDeleteDB;

};

#endif // DATAMANAGER_H