#pragma once

#include <sodium.h>

#include <QByteArray>
#include <QDateTime>
#include <QObject>
#include <QString>

struct PasswordEntry {
	int id;
	QString origin;
	QString username;
	QString password;
	QDateTime created_at;
	QDateTime updated_at;
};

class VaultManager : public QObject {
	Q_OBJECT
public:
	static VaultManager &instance() {
		static VaultManager inst;
		return inst;
	}

	bool init();
	bool isInitialized();
	bool setup(const QString &masterPassword);
	bool unlock(const QString &masterPassword);
	void lock();
	bool isUnlocked() const { return !databaseKey.isEmpty(); }

	bool savePassword(const QString &origin, const QString &username, const QString &password);
	QList<PasswordEntry> getPasswords(const QString &origin = QString());

private:
	VaultManager();
	~VaultManager();

	QByteArray databaseKey;	 // The DEK

	QByteArray deriveKEK(const QString &password, const QByteArray &salt, unsigned long long memlimit, unsigned long long opslimit);
};