package com.codebyte.api.auth.security;

import com.codebyte.api.common.error.ErrorCode;
import com.codebyte.api.common.web.ProblemDetailResponder;
import com.fasterxml.jackson.databind.ObjectMapper;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

/**
 * Returns a 401 problem for missing/invalid authentication instead of the default HTML/empty body.
 */
@Component
public class RestAuthenticationEntryPoint implements AuthenticationEntryPoint {

    private final ObjectMapper objectMapper;

    public RestAuthenticationEntryPoint(ObjectMapper objectMapper) {
        this.objectMapper = objectMapper;
    }

    @Override
    public void commence(
            HttpServletRequest request,
            HttpServletResponse response,
            AuthenticationException authException)
            throws IOException {
        ProblemDetailResponder.write(response, objectMapper, ErrorCode.UNAUTHENTICATED);
    }
}