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cache available languages and make translator shared

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Syping 2024-03-25 10:52:01 +01:00
parent 0e369f5a1d
commit b1329aa961
8 changed files with 69 additions and 52 deletions
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41
src/core/settings.cpp
View file

@ -220,23 +220,24 @@ void process_url(const std::string &url, translator &translator)
}
}
bool process_translator_settings(const dpp::json &json, translator &translator)
bool process_translator_settings(const dpp::json &json, std::shared_ptr<bot::translator::translator> &translator_instance)
{
if (!json.is_object()) {
std::cerr << "[Error] Value translator needs to be a object" << std::endl;
return false;
}
std::string translator_type = "libretranslate";
bot::settings::translator translator;
auto json_translator_type = json.find("type");
if (json_translator_type != json.end()) {
translator_type = *json_translator_type;
std::transform(translator_type.begin(), translator_type.end(), translator_type.begin(), ::tolower);
translator.type = *json_translator_type;
std::transform(translator.type.begin(), translator.type.end(), translator.type.begin(), ::tolower);
}
else {
translator.type = "libretranslate";
}
if (translator_type == "deepl") {
translator.type = TRANSLATOR_DEEPL;
if (translator.type == "deepl") {
auto json_deepl_hostname = json.find("hostname");
if (json_deepl_hostname != json.end())
translator.hostname = *json_deepl_hostname;
@ -249,10 +250,10 @@ bool process_translator_settings(const dpp::json &json, translator &translator)
return false;
}
translator.apiKey = *json_deepl_apiKey;
}
else if (translator_type == "libretranslate") {
translator.type = TRANSLATOR_LIBRETRANSLATE;
translator_instance = std::make_shared<bot::translator::deepl>(translator.hostname, translator.apiKey);
}
else if (translator.type == "libretranslate") {
auto json_lt_hostname = json.find("hostname");
if (json_lt_hostname != json.end())
translator.hostname = *json_lt_hostname;
@ -288,9 +289,11 @@ bool process_translator_settings(const dpp::json &json, translator &translator)
translator.apiKey = *json_lt_apiKey;
else
translator.apiKey.clear();
translator_instance = std::make_shared<bot::translator::libretranslate>(translator.hostname, translator.port, translator.url, translator.tls, translator.apiKey);
}
else if (translator_type == "stub") {
translator.type = TRANSLATOR_STUB;
else if (translator.type == "stub") {
translator_instance = std::make_shared<bot::translator::stub>();
}
else {
std::cerr << "[Error] Translator " << translator.type << " is unknown" << std::endl;
@ -471,20 +474,10 @@ std::shared_ptr<bot::database::database> settings::get_database() const
return m_database;
}
std::unique_ptr<bot::translator::translator> settings::get_translator() const
std::shared_ptr<bot::translator::translator> settings::get_translator() const
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
switch (m_translator.type) {
case TRANSLATOR_DEEPL:
return std::make_unique<bot::translator::deepl>(m_translator.hostname, m_translator.apiKey);
case TRANSLATOR_LIBRETRANSLATE:
return std::make_unique<bot::translator::libretranslate>(m_translator.hostname, m_translator.port, m_translator.url, m_translator.tls, m_translator.apiKey);
case TRANSLATOR_STUB:
return std::make_unique<bot::translator::stub>();
default:
return std::make_unique<bot::translator::translator>();
}
return m_translator;
}
const std::string settings::token() const

4
src/core/settings.h
View file

@ -47,7 +47,7 @@ namespace bot {
static const target* get_target(const channel *channel, const std::string &target);
const std::vector<std::string> preferred_languages() const;
std::shared_ptr<bot::database::database> get_database() const;
std::unique_ptr<bot::translator::translator> get_translator() const;
std::shared_ptr<bot::translator::translator> get_translator() const;
const std::string token() const;
/* is functions */
@ -73,7 +73,7 @@ namespace bot {
std::shared_ptr<bot::database::database> m_database;
std::vector<guild> m_guilds;
std::vector<std::string> m_prefLangs;
bot::settings::translator m_translator;
std::shared_ptr<bot::translator::translator> m_translator;
std::string m_token;
std::vector<dpp::snowflake> m_webhookIds;
};

7
src/core/settings_types.h
View file

@ -40,13 +40,8 @@ namespace bot {
dpp::snowflake id;
std::vector<bot::settings::channel> channel;
};
enum translator_type {
TRANSLATOR_DEEPL,
TRANSLATOR_LIBRETRANSLATE,
TRANSLATOR_STUB
};
struct translator {
translator_type type;
std::string type;
std::string hostname;
uint16_t port;
std::string url;

6
src/core/translator.h
View file

@ -19,6 +19,7 @@
#ifndef TRANSLATOR_H
#define TRANSLATOR_H
#include <chrono>
#include <string>
#include <vector>
@ -29,6 +30,11 @@ namespace bot {
std::string name;
};
struct supported_languages {
std::vector<language> languages;
std::chrono::system_clock::time_point query_time;
};
class translator {
public:
explicit translator() = default;

32
src/translator/deepl/deepl.cpp
View file

@ -20,6 +20,7 @@
#include <dpp/httpsclient.h>
#include "deepl.h"
using namespace bot::translator;
using namespace std::chrono_literals;
using namespace std::string_literals;
deepl::deepl(const std::string &hostname, const std::string apiKey) :
@ -33,31 +34,41 @@ deepl::~deepl()
const std::vector<language> deepl::get_languages()
{
std::vector<language> languages;
if (!m_languages.languages.empty()) {
auto current_time = std::chrono::system_clock::now();
auto threshold_time = m_languages.query_time + 24h;
if (current_time <= threshold_time)
return m_languages.languages;
}
try {
dpp::https_client http_request(m_hostname, 443, "/v2/languages?type=target", "GET", {}, { {"Authorization"s, "DeepL-Auth-Key " + m_apiKey} }, false);
if (http_request.get_status() == 200) {
const dpp::json response = dpp::json::parse(http_request.get_content());
if (response.is_array()) {
for (const auto &json_language : response) {
if (json_language.is_object()) {
m_languages.languages.clear();
for (auto json_language = response.begin(); json_language != response.end(); json_language++) {
if (json_language->is_object()) {
language language;
auto json_lang_code = json_language.find("language");
if (json_lang_code != json_language.end())
auto json_lang_code = json_language->find("language");
if (json_lang_code != json_language->end())
language.code = *json_lang_code;
if (language.code.size() > 2)
std::transform(language.code.begin(), language.code.begin() + 2, language.code.begin(), ::tolower);
else
std::transform(language.code.begin(), language.code.end(), language.code.begin(), ::tolower);
auto json_lang_name = json_language.find("name");
if (json_lang_name != json_language.end())
auto json_lang_name = json_language->find("name");
if (json_lang_name != json_language->end())
language.name = *json_lang_name;
if (!language.code.empty() && !language.name.empty())
languages.push_back(std::move(language));
m_languages.languages.push_back(std::move(language));
}
}
m_languages.query_time = std::chrono::system_clock::now();
}
}
}
@ -65,18 +76,19 @@ const std::vector<language> deepl::get_languages()
std::cerr << "[Exception] " << exception.what() << std::endl;
}
return languages;
return m_languages.languages;
}
const std::string deepl::translate(const std::string &text, const std::string &source, const std::string &target)
{
const dpp::http_headers http_headers = {
{"Authorization"s, "DeepL-Auth-Key "s + m_apiKey},
{"Authorization"s, "DeepL-Auth-Key " + m_apiKey},
{"Content-Type"s, "application/json"s}
};
dpp::json json_body = {
{"text"s, { text } },
{"source_lang"s, source},
{"target_lang"s, target},
};

1
src/translator/deepl/deepl.h
View file

@ -33,6 +33,7 @@ namespace bot {
private:
std::string m_apiKey;
std::string m_hostname;
supported_languages m_languages;
};
}
}

26
src/translator/libretranslate/libretranslate.cpp
View file

@ -20,6 +20,7 @@
#include <dpp/httpsclient.h>
#include "libretranslate.h"
using namespace bot::translator;
using namespace std::chrono_literals;
using namespace std::string_literals;
libretranslate::libretranslate(const std::string &hostname, uint16_t port, const std::string &url, bool tls, const std::string apiKey) :
@ -33,29 +34,36 @@ libretranslate::~libretranslate()
const std::vector<language> libretranslate::get_languages()
{
std::vector<language> languages;
if (!m_languages.languages.empty()) {
auto current_time = std::chrono::system_clock::now();
auto threshold_time = m_languages.query_time + 24h;
if (current_time <= threshold_time)
return m_languages.languages;
}
try {
dpp::https_client http_request(m_hostname, m_port, m_url + "languages", "GET", {}, {}, !m_tls);
if (http_request.get_status() == 200) {
const dpp::json response = dpp::json::parse(http_request.get_content());
if (response.is_array()) {
for (const auto &json_language : response) {
if (json_language.is_object()) {
m_languages.languages.clear();
for (auto json_language = response.begin(); json_language != response.end(); json_language++) {
if (json_language->is_object()) {
language language;
auto json_lang_code = json_language.find("code");
if (json_lang_code != json_language.end())
auto json_lang_code = json_language->find("code");
if (json_lang_code != json_language->end())
language.code = *json_lang_code;
auto json_lang_name = json_language.find("name");
if (json_lang_name != json_language.end())
auto json_lang_name = json_language->find("name");
if (json_lang_name != json_language->end())
language.name = *json_lang_name;
if (!language.code.empty() && !language.name.empty())
languages.push_back(std::move(language));
m_languages.languages.push_back(std::move(language));
}
}
m_languages.query_time = std::chrono::system_clock::now();
}
}
}
@ -63,7 +71,7 @@ const std::vector<language> libretranslate::get_languages()
std::cerr << "[Exception] " << exception.what() << std::endl;
}
return languages;
return m_languages.languages;
}
const std::string libretranslate::translate(const std::string &text, const std::string &source, const std::string &target)

2
src/translator/libretranslate/libretranslate.h
View file

@ -25,6 +25,7 @@
namespace bot {
namespace translator {
class libretranslate : public translator {
public:
explicit libretranslate(const std::string &hostname, uint16_t port, const std::string &url, bool tls, const std::string apiKey = {});
~libretranslate() override;
@ -34,6 +35,7 @@ namespace bot {
private:
std::string m_apiKey;
std::string m_hostname;
supported_languages m_languages;
uint16_t m_port;
std::string m_url;
bool m_tls;