/*
 * Copyright 2019-2025, Andrew Lindesay <apl@lindesay.co.nz>.
 * All rights reserved. Distributed under the terms of the MIT License.
 */
#ifndef LOCALE_UTILS_H
#define LOCALE_UTILS_H


#include <vector>

#include <String.h>

#include "Language.h"


class BCollator;


class LocaleUtils {

public:
        static  BCollator*              GetSharedCollator();

        static  BString                 TimestampToDateTimeString(uint64 millis);
        static  BString                 TimestampToDateString(uint64 millis);

        static  BString                 CreateTranslatedIAmMinimumAgeSlug(int minimumAge);

        static  LanguageRef             DeriveDefaultLanguage(const std::vector<LanguageRef>& languages);
        static  std::vector<LanguageRef>
                                                        WellKnownLanguages();

        static  void                    SetForcedSystemDefaultLanguageID(const BString& id);
                // exposed for testing

private:

        static  LanguageRef             _FindBestMatchingLanguage(const std::vector<LanguageRef>& languages,
                                                                const char* code, const char* countryCode,
                                                                const char* scriptCode);

        static  LanguageRef             _DeriveSystemDefaultLanguage();

        static  int32                   _IndexOfBestMatchingLanguage(const std::vector<LanguageRef>& languages,
                                                                const char* code, const char* countryCode,
                                                                const char* scriptCode);

        static  void                    _GetCollator(BCollator* collator);

private:
        static  BCollator*              sSharedCollator;

        static  BString                 sForcedSystemDefaultLanguageID;
};


#endif // LOCALE_UTILS_H