package core;

import org.apache.commons.io.IOUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

public class BridgeServlet extends HttpServlet {

    protected static final String MISP_CLIENT_URL = "http://localhost:9090/mispclient/core";

    public final Map<Long, Ride> rideMap = new HashMap<>();
    protected RideMapHelper mapHelper = new RideMapHelper(rideMap);

    // #######
    //
    // #######

    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {

        String jsonPayload = IOUtils.toString(request.getReader());

        Ride ridePayload = new Ride(jsonPayload);
        boolean hasID = ridePayload.getID() != null;
        boolean hasRequest = ridePayload.getRequest() != null;
        boolean hasData = ridePayload.getData() != null;


        if (hasID & hasRequest & !hasData) {
            Thread handleGetUserRequestThread = new Thread(() -> {
                try {
                    handleGetRequest(request, response);
                } catch (IOException | InterruptedException e) {e.printStackTrace(); }
            });
            handleGetUserRequestThread.setName("handleGetUserRequestThread");
            handleGetUserRequestThread.start();
        }

        if (hasID && hasRequest && hasData) {
            Thread handleGetRideRequestDataThread = new Thread(() -> {
                try {
                    handleGetRideRequestData(request, response);
                } catch (IOException | InterruptedException e) { e.printStackTrace(); }
            });
            handleGetRideRequestDataThread.setName("handleGetRideRequestDataThread");
            handleGetRideRequestDataThread.start();
        }

    }


    /**
     * handle GET (Link)
     * remove Ride from AvailableRides
     * add Ride to ReservedRides
     * send OK (Ride) to mispclient
     * send OK (Ride) to public
     */
    protected void handleGetRequest(HttpServletRequest request, HttpServletResponse response) throws IOException, InterruptedException {
        // # send OK (Ride) to public
    }


    /**
     * handle GET (Ride)(Data)
     * if Ride in ForwardedRequest
     * remove Ride from ForwardedRequest
     * add Ride to NewData
     * send OK (Ride)(Data)
     * remove Ride from NewData
     * add Ride to ForwardedData
     * send OK (EOL)
     * remove Ride from ForwardedData
     * add Ride to EOL
     */
    protected void handleGetRideRequestData(HttpServletRequest request, HttpServletResponse response) throws IOException, InterruptedException {
        // # send OK (EOL)
    }

    // #######
    //
    // #######

    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        Thread handlePostRideThread = new Thread(() -> {
            try {handlePostRide(request, response); } catch (IOException | InterruptedException e) { e.printStackTrace(); }
        });
        handlePostRideThread.setName("handlePostRideThread");
        handlePostRideThread.start();
    }


    /**
     * handle POST (Ride)
     * add Ride to AvailableRides
     */
    protected void handlePostRide(HttpServletRequest request, HttpServletResponse response) throws IOException, InterruptedException {
        // # send OK (Ride) to mispclient
    }
}