package com.t2404e.aihealthcoach.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.t2404e.aihealthcoach.common.ApiResponse;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import java.io.IOException;

@Component
public class CustomAuthenticationEntryPoint implements AuthenticationEntryPoint {

    private final ObjectMapper objectMapper;

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

    @Override
    public void commence(HttpServletRequest request,
                         HttpServletResponse response,
                         AuthenticationException authException)
            throws IOException {

        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        response.setContentType("application/json");

        ApiResponse<?> apiResponse =
                ApiResponse.error("Authentication required or invalid token");

        response.getWriter().write(
                objectMapper.writeValueAsString(apiResponse)
        );
    }
}