/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.dolphinscheduler.api.controller;

import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpServletRequest;

import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class DsErrorController implements ErrorController {

    @RequestMapping("/error")
    public ModelAndView handleError(HttpServletRequest request) {
        Object status = request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE);
        ModelAndView modelAndView = new ModelAndView();

        if (status != null) {
            Integer statusCode = Integer.valueOf(status.toString());

            if (statusCode == HttpStatus.NOT_FOUND.value()) {
                modelAndView.setStatus(HttpStatus.OK);
                modelAndView.setViewName("forward:/ui/index.html");
                return modelAndView;
            }

            modelAndView.setStatus(HttpStatus.valueOf(statusCode));
        }
        return modelAndView;
    }
}
