package be.mentoringsystems.merke.presentation;

import be.mentoringsystems.merke.model.FilterMap;
import be.mentoringsystems.merke.model.SortingMap;
import be.mentoringsystems.merke.model.dto.ApiDTO;
import be.mentoringsystems.merke.presentation.conversion.FilterMapEditor;
import be.mentoringsystems.merke.presentation.conversion.SortingMapEditor;
import java.util.ArrayList;
import java.util.List;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.http.HttpStatus;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.WebRequest;

/**
 *
 * @author anthonyarents
 */
@ControllerAdvice(annotations = RestController.class)
public class Advice {

    private static final Logger LOGGER = LogManager.getLogger(Advice.class);

    @InitBinder("queryParams")
    public void initBinderForQueryParams(final WebDataBinder binder) {
        binder.registerCustomEditor(FilterMap.class, new FilterMapEditor());
        binder.registerCustomEditor(SortingMap.class, new SortingMapEditor());
    }

    @ExceptionHandler(value = AccessDeniedException.class)
    @ResponseStatus(HttpStatus.FORBIDDEN)
    @ResponseBody
    public ApiDTO accessDeniedException(final AccessDeniedException exception, final WebRequest request) {
        LOGGER.error(exception.getMessage());
        final List<String> messageList = new ArrayList<String>();
        messageList.add(exception.getMessage());
        return ApiDTO.error(messageList);
        //return ApiDTO.error(Throwables.toStringList(exception));
    }

    @ExceptionHandler(value = Exception.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    @ResponseBody
    public ApiDTO exception(final Exception exception, final WebRequest request) {
        final List<String> messageList = new ArrayList<String>();
        if ("org.apache.catalina.connector.ClientAbortException".equals(exception.getClass().getCanonicalName())) {
            LOGGER.debug(exception.getMessage());
            //LOGGER.info("ignored client abort");
            return null;
        } else {
            LOGGER.error(exception.getMessage(), exception);
            messageList.add(exception.getMessage());
        }
        return ApiDTO.error(messageList);
    }
}