import java.net.*;
import java.io.*;
import tcpclient.TCPClient;

public class HTTPAsk {
    public static void main( String[] args) throws IOException{

        int port = Integer.parseInt(args[0]);
        ServerSocket welcomeSocket = new ServerSocket(port);

        while(true){

            Socket connectionSocket = welcomeSocket.accept();

            //buffer what the browser sends us, url etc
            BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
            //output stream to browser
            DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());

            String line;
            String fin = "";
            StringBuilder sb = new StringBuilder();
            //vi tar in hela GET + URL från browser
            //STOPP VID HTTP/1.1
            while(!(line = inFromClient.readLine()).isEmpty()) {
            sb.append(line);
            fin = sb.toString(); //hela adressen
            //line = inFromClient.readLine(); räcker det att ta in en line?????
            }
            //ANDRA KOMPONENT FÖRSTA RADEN
            //GET /ask?hostname=time.nist.gov&port=13 HTTP/1.1
            String[] finparam = fin.split(" ");
            String path = finparam[1]; //inte GET men URL och ej version
            //om adressen inte stämmer eller ngt
            //File file = new File(path);
            //not found för det finns inget där
            /*if(!file.exists()) {
                outToClient.writeBytes("HTTP/1.1 404 Not Found \r\n\r\n");
                connectionSocket.close();
            }*/
            // bad request om det är felformulerat
            //om typ någon del i urlen inte kan framkallas
            /*if(finparam.length() < 3) {
                outToClient.writeBytes("HTTP/1.1 400 Bad Request \r\n\r\n");
                connectionSocket.close();
            }*/
            //no protocol???? hur??? vi kan tydligen inte stopppa in stringröv här
            /*URL url = new URL(path);
            String hostname = url.getHost();
            int port2 = url.getPort(); //WHY TWO PORTS???
            String serverInput = url.getQuery();*/
            //vi bör skicka iväg vad vi snippade upp ovan tcpclientanv
            //String serverOutput = TCPClient.askServer(hostname, port2, serverInput);
            //then we should just throw what we got out to the browser page
            //header
            outToClient.writeBytes("HTTP/1.1 200 OK \r\n\r\n");
            outToClient.writeBytes("YOOOOOOOOOOOOO\r\n\r\n");
            outToClient.writeBytes(path + "\r\n\r\n");
            //outToClient.writeBytes(hostname);
            connectionSocket.close();
        }
    }
}