import pl.jrj.mdb.IMdbManager;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

/**
 *
 * @author Sebastian Bartczak
 */

@Path("/cntrl")
public class RControl {

    private static int state = 0;
    private static int counter = 0;
    private static int error = 0;
    private static int sessionId = 0;


    public void lookupContext() {
        String lookupPath =
                "java:global/mdb-project/MdbManager!pl.jrj.mdb.IMdbManager";
        try {
            InitialContext context = new InitialContext();
            IMdbManager manager = (IMdbManager) context.lookup(lookupPath);
            sessionId = getNumber(manager.sessionId("117535"));

        } catch (NamingException e) {
            e.printStackTrace();
        }
    }

    private int getNumber(String number) {

        if (number.toLowerCase().startsWith("0b")) {
            return Integer.parseInt(number.substring(2), 2);
        }

        if (number.toLowerCase().startsWith("0x")) {
            return Integer.parseInt(number.substring(2), 16);
        }

        if (number.toLowerCase().startsWith("0") && number.length() > 0) {
            return Integer.parseInt(number.substring(1), 8);
        }

        return Integer.parseInt(number);
    }

    @GET
    @Path("/start")
    public void start() {
        this.lookupContext();
        if (state==0) {
            state = 1;
        } else {
            error++;
        }
    }


    @GET
    @Path("/stop")
    public void stop() {
        if (state==1) {
            state = 0;
        } else {
            error++;
        }
    }

    @GET
    @Path("/clr")
    public void clr() {
        counter = 0;
        error = 0;
    }


    @GET
    @Path("/icr")
    public void inc() {
        if (state==1) {
            counter++;
        } else {
            error++;
        }
    }


    @GET
    @Path("/dcr")
    public void dec() {
        if (state==1) {
            counter--;
        } else {
            error++;
        }
    }


    @GET
    @Path("/icr/{n}")
    public void incN(@PathParam("n") String n) {
        if (state==1) {
            counter += getNumber(n);
        } else {
            error++;
        }
    }


    @GET
    @Path("/dcr/{n}")
    public void decN(@PathParam("n") String n) {
        if (state==1) {
            counter -= getNumber(n);
        } else {
            error++;
        }
    }


    @GET
    @Produces(MediaType.TEXT_PLAIN)
    @Path("/res")
    public String res() {
        return String.valueOf(sessionId % counter);
    }


    @GET
    @Produces(MediaType.TEXT_PLAIN)
    @Path("/err")
    public String err() {
        return String.valueOf(sessionId % error);
    }



}