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package io.hyperfoil.tools.horreum.server;

import jakarta.json.Json;
import jakarta.json.JsonArrayBuilder;
import jakarta.validation.ConstraintViolation;
import jakarta.validation.ConstraintViolationException;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.ext.ExceptionMapper;
import jakarta.ws.rs.ext.Provider;

import org.jboss.logging.Logger;

@Provider
public class ConstraintViolationExceptionMapper implements ExceptionMapper {
    private static final Logger log = Logger.getLogger(ConstraintViolationExceptionMapper.class);

    @Override
    public Response toResponse(ConstraintViolationException exception) {
        log.error("Mapping exception to response", exception);
        JsonArrayBuilder arrayBuilder = Json.createArrayBuilder();
        for (ConstraintViolation cv : exception.getConstraintViolations()) {
            arrayBuilder.add(Json.createObjectBuilder()
                    .add("message", cv.getMessage())
                    .add("class", cv.getRootBeanClass().getName())
                    .add("path", cv.getPropertyPath().toString())
                    .build());
        }
        return Response.status(Response.Status.BAD_REQUEST).entity(Json.createObjectBuilder()
                .add("error", exception.getClass().getName())
                .add("violations", arrayBuilder).build()).build();
    }
}