/*
 * Created by victoria on 2021-05-13.
 */

#pragma once

#include <QBuffer>
#include <QString>
#include <lmdb.h>

#include "key.h"

namespace QXmpp::Omemo {

    class Bundle;

    class Database {
    public:
        explicit Database(QString jid);
        ~Database();
        Database(const Database &) = delete;
        Database(Database &&) = delete;
        Database &operator=(const Database &) = delete;

        // For local user
        std::optional<int> loadActiveDeviceId();
        bool saveActiveDeviceId(int deviceId);

        std::optional<QByteArray> loadIdentityKeySecret(int deviceId);
        bool saveIdentityKeySecret(int deviceId, const QByteArray &identityKeySecret);

        std::optional<Bundle> loadBundle(int deviceId);
        bool saveBundle(int deviceId, const Bundle& bundle);

        // For any user
        std::optional<QByteArray> loadIdentityKey(int deviceId);
        bool saveIdentityKey(int deviceId, const QByteArray &identityKey);

        bool containsPreKey();
        std::optional<KeyPair> loadPreKey(int deviceId, int id);
        bool savePreKey(int deviceId, int id, const KeyPair &preKey);

        std::optional<SignedPreKey> loadSignedPreKey(int deviceId);
        bool saveSignedPreKey(int deviceId, const SignedPreKey& signedPreKey);

        const QString jid;

    private:
        MDB_env *env{};
        MDB_dbi dbiDevices{};
        MDB_dbi dbiKeys{};
        MDB_dbi dbiPreKeys{};
        MDB_dbi dbiIdentityKeys{};
    };

} // namespace QXmpp::Omemo