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path: root/src/server/client.cpp
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#include "libsock/server/client.hpp"
#include "libsock/types.hpp"
#include "misc/FileDescriptor.hpp"
// #include "chatManager.hpp"
#include "libsock/server/server.hpp"
// #include "sessionManager.hpp"
#include <algorithm>
#include <arpa/inet.h>
#include <cerrno>
#include <cstring>
#include <format>
#include <optional>
#include <sys/socket.h>

using namespace LibSock::Client;

Client::Client(bool track, bool oneShot) : m_track(track), m_oneShot(oneShot) {
	m_sockfd = std::make_shared<LibSock::CFileDescriptor>(
		accept(LibSock::Server::pServer->getSocket()->get(),
			   reinterpret_cast<sockaddr *>(&m_addr),
			   &m_addrLen)); // if this is in the init list, it will run before
							 // m_addrLen, so it won't work :/

	if (!m_sockfd->isValid())
		throw std::runtime_error("session: Failed to create socket");

	m_ip.resize(INET_ADDRSTRLEN);
	inet_ntop(AF_INET, &m_addr.sin_addr, &m_ip[0], INET_ADDRSTRLEN);
	m_ip.resize(strlen(m_ip.c_str()));
	m_port = ntohs(m_addr.sin_port);
}

Client::~Client() {
#ifdef DEBUG
	onDisconnect();
#endif
	m_sockfd.reset();
}

void Client::recvLoop() {
	while (true) {
		auto recvData = read(std::format("{}: ", m_name));
		if (!recvData->good)
			break;

		recvData->sanitize();
		if (recvData->isEmpty())
			continue;

		// pChatManager->newMessage({.msg = recvData->data, .username = m_name,
		// .sender = self, .admin = isCommand});
	}
}

bool SRecvData::isEmpty() const {
	return data.empty() ||
		   std::ranges::all_of(data, [](char c) { return std::isspace(c); });
}

void SRecvData::sanitize() {
	if (!data.empty() && data.back() == '\n')
		data.pop_back();

	data.erase(std::remove(data.begin(), data.end(), asciiEscape),
			   data.end()); // don't accept ASCII code, might mess up terminal
							// // NOLINT

	if (const auto start = data.find_first_not_of(" \t\r\n");
		start != std::string::npos) {
		const auto end = data.find_last_not_of(" \t\r\n");
		data = data.substr(start, end - start + 1);
	} else
		data.clear();
}

UP<SRecvData>
Client::read(std::optional<std::function<void(const SRecvData &)>> cb) {
	auto recvData = std::make_unique<SRecvData>();

	recvData->data.resize(recvData->size);
	ssize_t size = recv(m_sockfd->get(), &recvData->data[0], recvData->size, 0);

	if (size < 0) {
	} else if (size == 0) {
		recvData->good = false;
		if (cb)
			(*cb)(*recvData);
	} else {
		recvData->data.resize(size);
		recvData->good = true;
	}

#ifdef DEBUG
	onRecv(*recvData);
#endif
	m_szReading.reset();
	return recvData;
}

UP<SRecvData>
Client::read(const std::string &msg,
			 std::optional<std::function<void(const SRecvData &)>> cb) {
	write("{}", msg);
	m_szReading = msg;
	return read();
}

void Client::run() {
	for (const auto &chat : pClients->getDatas()) {
		write(chat.msg);
		recvLoop();

		pClients->kick(self);
	}
}

bool Client::isValid() {
	if (!m_sockfd->isValid() || m_name.empty())
		return false;

	int err = 0;
	socklen_t size = sizeof(err);
	return getsockopt(m_sockfd->get(), SOL_SOCKET, SO_ERROR, &err, &size) >=
			   0 &&
		   err == 0;
}

bool Client::write(const std::string &msg,
				   std::optional<std::function<void(const SRecvData &)>> cb) {
	const auto r = write("{}", msg);
	if (cb) {
		auto recvData = std::make_unique<SRecvData>();
		recvData->data = msg;
		recvData->good = r;
		(*cb)(*recvData);
	}
	return r;
}

const std::string &Client::getName() const { return m_name; }

const std::string &Client::getIp() const { return m_ip; }

template <typename... Args>
bool Client::write(std::format_string<Args...> fmt, Args &&...args) {
	std::string msg = std::format(fmt, std::forward<Args>(args)...);
	if (m_szReading) {
		msg.insert(0, "\r");
		msg.append(*m_szReading);
	}

	if (send(m_sockfd->get(), msg.c_str(), msg.size(), 0) < 0) {
		// cb somehow
		return false;
	}
	return true;
}