#ifndef PGSQLDATABASECATALOGUE_H
#define PGSQLDATABASECATALOGUE_H

#include <libpq-fe.h>
#include <QString>
#include <memory>
#include <vector>

namespace Pgsql {

	class Connection;

}

class PgAuthIdContainer;
class PgClassContainer;
class PgDatabaseContainer;
class PgTypeContainer;

class PgDatabaseCatalog: public std::enable_shared_from_this<PgDatabaseCatalog> {
public:
	PgDatabaseCatalog();
	PgDatabaseCatalog(const PgDatabaseCatalog&) = delete;
	PgDatabaseCatalog& operator = (const PgDatabaseCatalog&) = delete;

	~PgDatabaseCatalog();


	void loadAll(Pgsql::Connection &conn);
	void loadInfo(Pgsql::Connection &conn);
	void loadTypes(Pgsql::Connection &conn);
	void loadDatabases(Pgsql::Connection &conn);
	void loadAuthIds(Pgsql::Connection &conn);
	void loadClasses(Pgsql::Connection &conn);

	const QString& serverVersionString() const;
	int serverVersion() const;

	std::shared_ptr<const PgTypeContainer> types() const;
	std::shared_ptr<const PgDatabaseContainer> databases() const;
	std::shared_ptr<const PgAuthIdContainer> authIds() const;
	std::shared_ptr<const PgClassContainer> classes() const;
private:
	QString m_serverVersionString;
	int m_serverVersion;
	std::shared_ptr<PgTypeContainer> m_types;
	std::shared_ptr<PgDatabaseContainer> m_databases;
	std::shared_ptr<PgAuthIdContainer> m_authIds;
	std::shared_ptr<PgClassContainer> m_classes;
};

QString getRoleNameFromOid(const PgDatabaseCatalog &cat, Oid oid);
QString getRoleDisplayString(const PgDatabaseCatalog &cat, Oid oid);
QString getNamespaceDisplayString(const PgDatabaseCatalog &cat, Oid oid);
QString getTablespaceDisplayString(const PgDatabaseCatalog &cat, Oid oid);


#endif // PGSQLDATABASECATALOGUE_H