pica/database/dbinterface.h

//  SPDX-FileCopyrightText: 2023 Yury Gubich <blue@macaw.me>
//  SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <stdexcept>
#include <string>
#include <memory>
#include <stdint.h>

class DBInterface {
public:
    enum class Type {
        mysql
    };
    enum class State {
        disconnected,
        connecting,
        connected
    };
    static std::unique_ptr<DBInterface> create(Type type);

    virtual ~DBInterface();

    State currentState() const;

    const Type type;

    class Duplicate;
    class DuplicateLogin;
    class EmptyResult;
    class NoLogin;

public:
    virtual void connect(const std::string& path) = 0;
    virtual void disconnect() = 0;
    virtual void setDatabase(const std::string& newDatabase) = 0;
    virtual void setCredentials(const std::string& login, const std::string& password) = 0;

    virtual void migrate(uint8_t targetVersion) = 0;
    virtual uint8_t getVersion() = 0;
    virtual void setVersion(uint8_t version) = 0;

    virtual unsigned int registerAccount(const std::string& login, const std::string& hash) = 0;
    virtual std::string getAccountHash(const std::string& login) = 0;
    virtual unsigned int createSession(const std::string& login, const std::string& access, const std::string& renew) = 0;

protected:
    DBInterface(Type type);

protected:
    State state;
};