Setting.h

/* Setting.h */
 
/* Copyright (C) 2011-2024 Michael Lugmair (Lucio Carreras)
 *
 * This file is part of sayonara player
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
#ifndef SAYONARA_PLAYER_SETTING_H
#define SAYONARA_PLAYER_SETTING_H
 
#include "Utils/Settings/SettingConverter.h"
#include "Utils/Settings/SettingKey.h"
#include "Utils/Pimpl.h"
 
class AbstrSetting
{
    PIMPL(AbstrSetting)
 
    private:
        AbstrSetting();
        AbstrSetting(const AbstrSetting& other);
        AbstrSetting& operator=(const AbstrSetting& other);
        AbstrSetting(AbstrSetting&& other) noexcept;
        AbstrSetting& operator=(AbstrSetting&& other) noexcept;
 
    protected:
        explicit AbstrSetting(SettingKey key);
        AbstrSetting(SettingKey key, const char* dbKey);
 
    public:
        virtual ~AbstrSetting();
 
        [[nodiscard]] SettingKey getKey() const;
        [[nodiscard]] QString dbKey() const;
        [[nodiscard]] bool isDatabaseSetting() const;
 
        void assignValue(const QString& value);
 
        virtual bool loadValueFromString(const QString& str) = 0;
        [[nodiscard]] virtual QString valueToString() const = 0;
        virtual void assignDefaultValue() = 0;
};
 
template<typename KeyClass>
class Setting :
    public AbstrSetting
{
    public:
        Setting() = delete;
        Setting(const Setting&) = delete;
 
        Setting(const char* databaseKey, const typename KeyClass::Data& value) :
            AbstrSetting(KeyClass::key, databaseKey),
            m_value {value},
            m_defaultValue {value} {}
 
        explicit Setting(const typename KeyClass::Data& value) :
            AbstrSetting(KeyClass::key),
            m_value {value},
            m_defaultValue {value} {}
 
        ~Setting() override = default;
 
        void assignDefaultValue() override { m_value = m_defaultValue; }
 
        [[nodiscard]] QString valueToString() const override { return SettingConverter::toString(m_value); }
 
        bool loadValueFromString(const QString& str) override { return SettingConverter::fromString(str, m_value); }
 
        const typename KeyClass::Data& value() const { return m_value; }
 
        //const typename KeyClass::Data& default_value() const      {           return m_defaultValue;      }
 
        bool assignValue(const typename KeyClass::Data& val)
        {
            if(m_value == val)
            {
                return false;
            }
 
            m_value = val;
 
            return true;
        }
 
    private:
        typename KeyClass::Data m_value;
        typename KeyClass::Data m_defaultValue;
};
 
#endif // SAYONARA_PLAYER_SETTING_H