/*
	This file is part of Fennix Userspace.

	Fennix Userspace is free software: you can redistribute it and/or
	modify it under the terms of the GNU General Public License as
	published by the Free Software Foundation, either version 3 of
	the License, or (at your option) any later version.

	Fennix Userspace is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with Fennix Userspace. If not, see <https://www.gnu.org/licenses/>.
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>

#define PORT 8080
#define BUFFER_SIZE 1024

void HandleClient(int clientSocket)
{
	char buffer[BUFFER_SIZE];
	read(clientSocket, buffer, BUFFER_SIZE - 1);

	const char *response =
		"HTTP/1.1 200 OK\r\n"
		"Content-Type: text/html\r\n"
		"Content-Length: 12\r\n"
		"Connection: close\r\n"
		"\r\n"
		"Hello World!";

	write(clientSocket, response, strlen(response));
	close(clientSocket);
}

int main()
{
	int serverSocket = socket(AF_INET, SOCK_STREAM, 0);
	if (serverSocket == -1)
	{
		perror("Socket creation failed");
		return 1;
	}

	struct sockaddr_in serverAddr;
	serverAddr.sin_family = AF_INET;
	serverAddr.sin_addr.s_addr = INADDR_ANY;
	serverAddr.sin_port = htons(PORT);

	if (bind(serverSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0)
	{
		perror("Bind failed");
		return 1;
	}

	if (listen(serverSocket, 5) < 0)
	{
		perror("Listen failed");
		return 1;
	}

	printf("Server running on port %d\n", PORT);
	while (1)
	{
		struct sockaddr_in clientAddr;
		socklen_t addrLen = sizeof(clientAddr);
		int clientSocket = accept(serverSocket, (struct sockaddr *)&clientAddr, &addrLen);
		if (clientSocket < 0)
		{
			perror("Accept failed");
			continue;
		}
		HandleClient(clientSocket);
	}

	close(serverSocket);
	return 0;
}