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#include "client/pch.hh"
#include "client/gui/language.hh"
#include "core/config/string.hh"
#include "core/io/config_map.hh"
#include "client/gui/settings.hh"
#include "client/globals.hh"
constexpr static std::string_view DEFAULT_LANGUAGE = "en_US";
// Available languages are kept in a special manifest file which
// is essentially a key-value map of semi-IETF-compliant language tags
// and the language's endonym; after reading the manifest, the translation
// system knows what language it can load and will act accordingly
constexpr static std::string_view MANIFEST_PATH = "lang/manifest.json";
static gui::LanguageManifest manifest;
static gui::LanguageIterator current_language;
static std::unordered_map<std::string, std::string> language_map;
static std::unordered_map<std::string, gui::LanguageIterator> ietf_map;
static config::String config_language(DEFAULT_LANGUAGE);
static void send_language_event(gui::LanguageIterator new_language)
{
gui::LanguageSetEvent event;
event.new_language = new_language;
globals::dispatcher.trigger(event);
}
void gui::language::init(void)
{
globals::client_config.add_value("language", config_language);
settings::add_language_select(0, settings_location::GENERAL, "language");
auto file = PHYSFS_openRead(std::string(MANIFEST_PATH).c_str());
if(file == nullptr) {
spdlog::critical("language: {}: {}", MANIFEST_PATH, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
std::terminate();
}
auto source = std::string(PHYSFS_fileLength(file), char(0x00));
PHYSFS_readBytes(file, source.data(), source.size());
PHYSFS_close(file);
auto jsonv = json_parse_string(source.c_str());
const auto json = json_value_get_object(jsonv);
const auto count = json_object_get_count(json);
if((jsonv == nullptr) || (json == nullptr) || (count == 0)) {
spdlog::critical("language: {}: parse error", MANIFEST_PATH);
json_value_free(jsonv);
std::terminate();
}
for(std::size_t i = 0; i < count; ++i) {
const auto ietf = json_object_get_name(json, i);
const auto value = json_object_get_value_at(json, i);
const auto endonym = json_value_get_string(value);
if(ietf && endonym) {
LanguageInfo info;
info.ietf = std::string(ietf);
info.endonym = std::string(endonym);
info.display = std::format("{} ({})", endonym, ietf);
manifest.push_back(info);
}
}
for(auto it = manifest.cbegin(); it != manifest.cend(); ++it) {
ietf_map.emplace(it->ietf, it);
}
json_value_free(jsonv);
// This is temporary! This value will
// be overriden in init_late after the
// config system updates config_language
current_language = manifest.cend();
}
void gui::language::init_late(void)
{
auto user_language = ietf_map.find(config_language.get_value());
if(user_language != ietf_map.cend()) {
gui::language::set(user_language->second);
return;
}
auto fallback = ietf_map.find(std::string(DEFAULT_LANGUAGE));
if(fallback != ietf_map.cend()) {
gui::language::set(fallback->second);
return;
}
spdlog::critical("language: we're doomed!");
spdlog::critical("language: {} doesn't exist!", DEFAULT_LANGUAGE);
std::terminate();
}
void gui::language::set(LanguageIterator new_language)
{
if(new_language != manifest.cend()) {
auto path = std::format("lang/lang.{}.json", new_language->ietf);
auto file = PHYSFS_openRead(path.c_str());
if(file == nullptr) {
spdlog::warn("language: {}: {}", path, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
send_language_event(new_language);
return;
}
auto source = std::string(PHYSFS_fileLength(file), char(0x00));
PHYSFS_readBytes(file, source.data(), source.size());
PHYSFS_close(file);
auto jsonv = json_parse_string(source.c_str());
const auto json = json_value_get_object(jsonv);
const auto count = json_object_get_count(json);
if((jsonv == nullptr) || (json == nullptr) || (count == 0)) {
spdlog::warn("language: {}: parse error", path);
send_language_event(new_language);
json_value_free(jsonv);
return;
}
language_map.clear();
for(size_t i = 0; i < count; ++i) {
const auto key = json_object_get_name(json, i);
const auto value = json_object_get_value_at(json, i);
const auto value_str = json_value_get_string(value);
if(key && value_str) {
language_map.emplace(key, value_str);
continue;
}
}
json_value_free(jsonv);
current_language = new_language;
config_language.set(new_language->ietf.c_str());
}
send_language_event(new_language);
}
gui::LanguageIterator gui::language::get_current(void)
{
return current_language;
}
gui::LanguageIterator gui::language::find(std::string_view ietf)
{
const auto it = ietf_map.find(std::string(ietf));
if(it != ietf_map.cend()) {
return it->second;
}
else {
return manifest.cend();
}
}
gui::LanguageIterator gui::language::cbegin(void)
{
return manifest.cbegin();
}
gui::LanguageIterator gui::language::cend(void)
{
return manifest.cend();
}
std::string_view gui::language::resolve(std::string_view key)
{
const auto it = language_map.find(std::string(key));
if(it != language_map.cend()) {
return it->second;
}
return key;
}
std::string gui::language::resolve_gui(std::string_view key)
{
// We need window tags to retain their hierarchy when a language
// dynamically changes; ImGui allows to provide hidden unique identifiers
// to GUI primitives that have their name change dynamically, so we're using this
return std::format("{}###{}", gui::language::resolve(key), key);
}
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