shortener-bot/telegram_client.cpp
2024-10-10 19:06:59 +00:00

123 lines
3.6 KiB
C++

#include <unistd.h>
#include <spdlog/spdlog.h>
#include "common.h"
#include "telegram_client.h"
TelegramClient::TelegramClient(uv_loop_t *eventLoop)
: m_eventLoop(eventLoop) {}
bool TelegramClient::start() {
spdlog::debug("tg: start");
if (m_running) return false;
m_running = true;
spdlog::debug("tg: creating uv handle");
m_uvHandle = new uv_async_t;
m_uvHandle->data = (void*)this;
uv_async_init(m_eventLoop, m_uvHandle, TelegramClient::uv_callback);
spdlog::debug("tg: starting telegram thread");
m_thread = std::thread([this](){
run_thread();
});
return true;
}
TelegramClient::~TelegramClient() {
if (m_thread.joinable()) {
send_query(td_api::make_object<td_api::close>(), {});
m_thread.join();
if (m_uvHandle)
uv_close((uv_handle_t*)m_uvHandle, TelegramClient::uv_close_handle_callback);
}
}
void TelegramClient::run_thread() {
spdlog::debug("tg: i am telegram thread");
td::ClientManager::execute(td_api::make_object<td_api::setLogVerbosityLevel>(0));
m_clientManager = std::make_unique<td::ClientManager>();
m_clientId = m_clientManager->create_client_id();
send_query(td_api::make_object<td_api::getOption>("version"), {});
run_telegram_main_loop();
}
void TelegramClient::run_telegram_main_loop() {
spdlog::info("tg: begin telegram main loop");
while (m_running) {
if (!process_response(m_clientManager->receive(500))) {
spdlog::info("tg: closed");
return;
}
}
}
void TelegramClient::send_query(td_api::object_ptr<td_api::Function> f, std::function<void(TgObject)> callback) {
std::uint64_t query_id = m_nextQueryId++;
if (callback) {
m_handlers.emplace(query_id, std::move(callback));
}
m_clientManager->send(m_clientId, query_id, std::move(f));
}
bool TelegramClient::process_response(td::ClientManager::Response response) {
if (!response.object) {
return true;
}
if (response.object->get_id() == td_api::updateAuthorizationState::ID) {
auto authUpdate = (td_api::updateAuthorizationState*) response.object.get();
if (authUpdate->authorization_state_->get_id() == td_api::authorizationStateClosed::ID) {
return false;
}
}
m_responseQueueMutex.lock();
m_responseQueue.push_back(std::move(response));
m_responseQueueMutex.unlock();
uv_async_send(m_uvHandle);
return true;
}
void TelegramClient::uv_callback(uv_async_t *h) {
//spdlog::debug("tg: libuv callback");
TelegramClient *self = (TelegramClient*)h->data;
self->m_responseQueueMutex.lock();
while (self->m_responseQueue.size() > 0) {
auto response = std::move(self->m_responseQueue.front());
self->m_responseQueue.pop_front();
if (response.request_id == 0) {
self->dispatch_update(response.object);
} else {
self->dispatch_response(response.request_id, std::move(response.object));
}
}
self->m_responseQueueMutex.unlock();
}
void TelegramClient::dispatch_update(TgObject &update) {
//spdlog::debug("tg: update");
for (auto i = m_updateHandlers.begin(); i != m_updateHandlers.end(); i++) {
i->first(i->second, *update.get());
}
}
void TelegramClient::dispatch_response(std::uint64_t queryId, TgObject response) {
spdlog::debug("tg: response to {}", queryId);
auto queryHandler = m_handlers.find(queryId);
if (queryHandler != m_handlers.end()) {
queryHandler->second(std::move(response));
}
}
void TelegramClient::uv_close_handle_callback(uv_handle_t *h) {
spdlog::debug("tg: closing uv handle");
delete h;
}
void TelegramClient::add_update_handler(std::function<void(void*, td_api::Object&)> handler, void *context) {
m_updateHandlers.push_back({std::move(handler), context});
}