#include "Webserv.hpp"

#define BUFSIZE 8192
#define MAX_HEADER_SIZE 42000
#define MAX_BODY_SIZE 500000 // test macro, replace with server config

void	Webserv::_request(Client *client)
{
	_read_request(client);
	if (g_last_signal)
		_handle_last_signal();	
}

void	Webserv::_read_request(Client *client)
{
	char	buf[BUFSIZE];
	ssize_t	ret;

	std::cerr << "call recv()" << "\n" ;
	ret = ::recv(client->fd, buf, BUFSIZE, 0);
	std::cerr << "recv() on fd(" << client->fd << ") returned = " << ret << "\n" ;
	if (ret == -1)
	{
		std::perror("err recv()");
		std::cerr << "client ptr =" << client << "\n"; // DEBUG
		std::cerr << "client.fd =" << client->fd << "\n"; // DEBUG
		_close_client(client->fd);
		return ;
	}
	if (ret == 0)
	{
		_close_client(client->fd);
		return ;
	}

	client->raw_request.append(buf, ret);
	if (!client->header_complete)
	{
		if (client->raw_request.find(CRLF CRLF) != std::string::npos)
		{
			client->header_complete = true;
			client->parse_request(); // TODO : split function to avoid useless parsing ?
			// TODO : determine server here for body size limit
			if (!client->get_headers("Content-Length").empty()
			&& ::atoi(client->get_headers("Content-Length").c_str()) > MAX_BODY_SIZE)
			{
				client->status = 413;
				_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD);
				return;
			}
		}
		else if (client->raw_request.size() > MAX_HEADER_SIZE)
		{
			client->status = 400;
			_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD);
			return;
		}
	}
	else if (client->header_complete)
	{
		client->read_body_size += ret;
		if (client->read_body_size > MAX_BODY_SIZE)
		{
			client->status = 413;
			_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD);
			return;
		}
		if ((int)client->read_body_size > ::atoi(client->get_headers("Content-Length").c_str()))
		{
			client->parse_request(); // reparse for the body
			_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD);
			return;
		}
	}


	if (client->header_complete && client->get_headers("Content-Type").empty() && client->get_headers("Content-Length").empty() )
	{
		_epoll_update(client->fd, EPOLLOUT, EPOLL_CTL_MOD);
		return;
	}
}