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package com.oracle.jmx.remote.rest.http;

import javax.management.AttributeNotFoundException;

import javax.management.InstanceNotFoundException;

import javax.management.ReflectionException;

import com.oracle.jmx.remote.rest.json.JSONElement;

import com.oracle.jmx.remote.rest.json.JSONObject;

import com.oracle.jmx.remote.rest.json.JSONPrimitive;

import com.oracle.jmx.remote.rest.mapper.JSONDataException;

import com.oracle.jmx.remote.rest.mapper.JSONMappingException;

import com.oracle.jmx.remote.rest.json.parser.ParseException;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.net.HttpURLConnection;

/**

 * @author harsha

 */

public class HttpResponse {

    public static final HttpResponse OK = new HttpResponse(HttpURLConnection.HTTP_OK, "Success");

    public static final HttpResponse SERVER_ERROR = new HttpResponse(HttpURLConnection.HTTP_INTERNAL_ERROR, "Internal server error");

    public static final HttpResponse METHOD_NOT_ALLOWED = new HttpResponse(HttpURLConnection.HTTP_BAD_METHOD, "Method not allowed");

    public static final HttpResponse BAD_REQUEST = new HttpResponse(HttpURLConnection.HTTP_BAD_REQUEST, "Bad request");

    public static final HttpResponse REQUEST_NOT_FOUND = new HttpResponse(HttpURLConnection.HTTP_NOT_FOUND, "Request not found");

    private final int code;

    private final String message;

    private final String detail;

    public HttpResponse(int code, String message) {

        this(code, message, "");

    }

    public HttpResponse(int code, String message, String detail) {

        this.code = code;

        this.message = message;

        this.detail = detail;

    }

    public HttpResponse(HttpResponse response, String detail) {

    }

    public int getCode() {

        return code;

    }

    }

    static int getHttpErrorCode(Exception ex) {

        if (ex instanceof JSONDataException

                || ex instanceof ParseException || ex instanceof IllegalArgumentException) {

            return HttpURLConnection.HTTP_BAD_REQUEST;

        } else if (ex instanceof JSONMappingException) {

            return HttpURLConnection.HTTP_INTERNAL_ERROR;

        } else if (ex instanceof AttributeNotFoundException

                || ex instanceof InstanceNotFoundException

                || ex instanceof ReflectionException) {

            return HttpURLConnection.HTTP_NOT_FOUND;

        }

        return HttpURLConnection.HTTP_BAD_REQUEST;

    }

    public static String getErrorMessage(Exception ex) {

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        ex.printStackTrace(pw);

        return sw.toString();

    }

    static JSONObject getJsonObject(int code, JSONElement request, JSONElement response) {

        JSONObject jobj = new JSONObject();

        jobj.put("status", new JSONPrimitive(code));

        jobj.put("request", request);

        jobj.put("response", response);

        return jobj;

    }

}