dl_language.h

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#pragma once
 
#include <string>
#include <vector>
#include <optional>
 
#include "dl_range.h"
#include "base/dl_unordered_map2.h"
#include "io/dl_log.h"
#include "base/dl_string.h"
 
namespace dl
{
class Language
{
public:
    enum Type : size_t
    {
        E_ENGLISH,
        E_CHINESE,
    };
    Language();
    void LoadXlsx(std::string_view path_name);

    std::string_view Get(std::string_view tag, std::string_view name);
 

    std::optional<std::string_view> GetCheck(std::string_view tag, std::string_view name);

    std::size_t GetTagSize(std::string_view tag);
 

    std::vector<std::string_view> GetTagVector(std::string_view tag);
    std::unordered_map<std::string, std::string> GetTagMap(std::string_view tag);

    std::vector<std::string_view> GetTagNameVector(std::string_view tag, std::string_view name);
    std::unordered_map<std::string, std::string_view> GetTagNameMap(std::string_view tag, std::string_view name);
        
    std::string_view GetTagNameRandom(std::string_view tag);

    const std::vector<std::string>& GetLangAll();

    void SetLangCurrent(Type type)
    {
        _typeCur = type;
        if (_data.size() < _typeCur)
            _data.resize(_typeCur);
    }
 
    ~Language();
 
    using MapName = std::unordered_map<std::string, std::string, string_hash, std::equal_to<>>;
    using MapTag = std::unordered_map<std::string, MapName, string_hash, std::equal_to<>>;
private:
    std::vector<MapTag> _data;
    Type _typeCur;
    std::vector<std::string> _allLang;
 
    const MapName* _get_tag_name_map(std::string_view tag);
};
 
extern Language* g_lang;
 

std::string_view lang(std::string_view tag_name);

std::string_view lang_auto(std::string_view tag_name);

template<typename... Args>
std::string lang(std::string_view tag_name, Args&& ...args)
{
    return fmt::vformat(lang(tag_name), fmt::make_format_args(args...));
}
 
}