configuration.h

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/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2019  The ManaPlus Developers
 *  Copyright (C) 2019-2021  Andrei Karas
 *
 *  This file is part of The ManaPlus Client.
 *
 *  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 2 of the License, or
 *  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/>.
 */
 
#ifndef CONFIGURATION_H
#define CONFIGURATION_H
 
#include "utils/stringutils.h"
#ifdef ENABLE_PUGIXML
#include "utils/xmlwriter.h"
#else
#include "utils/xml.h"
#endif  // ENABLE_PUGIXML
 
#include "defaults.h"
#include "localconsts.h"
 
class ConfigListener;
class ConfigurationObject;
 
template <class T, class CONT>
class ConfigurationListManager notfinal
{
    public:
        ConfigurationListManager()
        { }
 
        A_DELETE_COPY(ConfigurationListManager)
 
        
        virtual ConfigurationObject *writeConfigItem(const T &value,
                                                     ConfigurationObject
                                                     *const obj) const = 0;
 
        virtual CONT readConfigItem(const ConfigurationObject *const obj,
                                    CONT container)
                                    const A_WARN_UNUSED = 0;
 
        virtual ~ConfigurationListManager()
        { }
};
 
class ConfigurationObject notfinal
{
    friend class Configuration;
 
    public:
        A_DELETE_COPY(ConfigurationObject)
 
        virtual ~ConfigurationObject();
 
        virtual void setValue(const std::string &key,
                              const std::string &value);
 
        void deleteKey(const std::string &key);
 
        std::string getValue(const std::string &key,
                             const std::string &deflt) const A_WARN_UNUSED;
 
        int getValue(const std::string &key,
                     const int deflt) const A_WARN_UNUSED;
 
        int getValueInt(const std::string &key,
                        const int deflt) const A_WARN_UNUSED;
 
        bool getValueBool(const std::string &key,
                          const bool deflt) const A_WARN_UNUSED;
 
        unsigned getValue(const std::string &key,
                          const unsigned deflt) const A_WARN_UNUSED;
 
        double getValue(const std::string &key,
                        const double deflt) const A_WARN_UNUSED;
 
        void clear();
 
        template <class IT, class T, class CONT>
        void setList(const std::string &name, IT begin, IT end,
                     ConfigurationListManager<T, CONT> *manager)
        {
            if (!manager)
                return;
 
            ConfigurationObject *nextobj = new ConfigurationObject;
            deleteList(name);
            ConfigurationList *list = &(mContainerOptions[name]);
 
            for (IT it = begin; it != end; it++)
            {
                ConfigurationObject *const wrobj
                    = manager->writeConfigItem(*it, nextobj);
                if (wrobj)
                {   // wrote something
                    nextobj = new ConfigurationObject;
                    list->push_back(wrobj);
                }
                else
                {
                    nextobj->clear();  // you never know...
                }
            }
 
            delete nextobj;
        }
 
        template<class T, class CONT>
        CONT getList(const std::string &name, CONT empty,
                     ConfigurationListManager<T, CONT> *manager)
        {
            ConfigurationList *const list = &(mContainerOptions[name]);
            CONT container = empty;
 
            if (!manager)
                return container;
 
            for (ConfigurationList::const_iterator it = list->begin();
                 it != list->end();
                 ++ it)
            {
                container = manager->readConfigItem(*it, container);
            }
 
            return container;
        }
 
#ifdef DEBUG_CONFIG
        void enableKeyLogging()
        { mLogKeys = true; }
 
        void setIsMain(bool b)
        { mIsMain = b; }
#endif  // DEBUG_CONFIG
 
    protected:
        ConfigurationObject();
 
        virtual void initFromXML(XmlNodeConstPtrConst parentNode);
        virtual void writeToXML(XmlTextWriterPtr writer);
 
        void deleteList(const std::string &name);
 
        typedef std::map<std::string, std::string> Options;
        Options mOptions;
 
        typedef std::list<ConfigurationObject *> ConfigurationList;
        std::map<std::string, ConfigurationList> mContainerOptions;
 
#ifdef DEBUG_CONFIG
        bool mLogKeys;
        bool mIsMain;
#endif  // DEBUG_CONFIG
};
 
#define valTest(num) mStatsRe##num
 
class Configuration final : public ConfigurationObject
{
    public:
        Configuration();
 
        A_DELETE_COPY(Configuration)
 
        ~Configuration() override final;
 
        void init(const std::string &filename,
                  const UseVirtFs useResManager,
                  const SkipError skipError);
 
        void reInit();
 
        void unload();
 
        DefaultsData &getDefaultValues()
        { return mDefaultsData; }
 
        void write();
 
        void addListener(const std::string &key,
                         ConfigListener *const listener);
 
        void removeListener(const std::string &key,
                            ConfigListener *const listener);
 
        void removeListeners(ConfigListener *const listener);
 
#ifdef ENABLE_CHECKS
        void checkListeners(ConfigListener *const listener,
                            const char *const file,
                            const unsigned line);
#endif  // ENABLE_CHECKS
 
        void setValue(const std::string &key,
                      const std::string &value) override;
 
        void incValue(const std::string &key);
 
        void setSilent(const std::string &key,
                       const std::string &value);
 
        inline void setValue(const std::string &key,
                             const char *const value)
        { if (value != nullptr) setValue(key, std::string(value)); }
 
        inline void setSilent(const std::string &key,
                              const char *const value)
        { if (value != nullptr) setSilent(key, std::string(value)); }
 
        inline void setValue(const std::string &key,
                             const float value)
        { setValue(key, toString(value)); }
 
        inline void setValue(const std::string &key,
                             const double value)
        { setValue(key, toString(value)); }
 
        inline void setValue(const std::string &key,
                             const int value)
        { setValue(key, toString(value)); }
 
        inline void setValueInt(const std::string &key,
                                const int value)
        { setValue(key, toString(value)); }
 
        inline void setValue(const std::string &key,
                             const unsigned value)
        { setValue(key, toString(value)); }
 
        inline void setValue(const std::string &key,
                             const bool value)
        { setValue(key, value ? "1" : "0"); }
 
        inline void setSilent(const std::string &key,
                              const bool value)
        { setSilent(key, value ? "1" : "0"); }
 
        int resetIntValue(const std::string &key);
 
        bool resetBoolValue(const std::string &key);
 
        const std::string &getConfigPath() const noexcept2 A_WARN_UNUSED
        { return mConfigPath; }
 
        int getIntValue(const std::string &key) const A_WARN_UNUSED_NON_TESTS;
 
        float getFloatValue(const std::string &key) const
                            A_WARN_UNUSED_NON_TESTS;
 
        std::string getStringValue(const std::string &key) const
                                   A_WARN_UNUSED_NON_TESTS;
 
        bool getBoolValue(const std::string &key) const
                          A_WARN_UNUSED_NON_TESTS;
 
        std::string getDirectory() const noexcept2 A_WARN_UNUSED
        { return mDirectory; }
 
        void removeOldKeys();
 
        std::string getFileName() const noexcept2 A_WARN_UNUSED
        { return mFilename; }
 
        void writeUpdated();
 
        void cleanDefaults();
 
    private:
        typedef std::list<ConfigListener*> Listeners;
        typedef Listeners::iterator ListenerIterator;
        typedef std::map<std::string, Listeners> ListenerMap;
        typedef ListenerMap::iterator ListenerMapIterator;
        ListenerMap mListenerMap;
 
        // Location of config file
        std::string mConfigPath;
        DefaultsData mDefaultsData;
        std::string mDirectory;
        std::string mFilename;
        UseVirtFs mUseResManager;
        bool mUpdated;
};
 
extern Configuration branding;
extern Configuration config;
extern Configuration serverConfig;
extern Configuration paths;
extern Configuration features;
 
#endif  // CONFIGURATION_H