package org.jboss.resteasy.plugins.providers.multipart;

import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.core.Context;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.ext.MessageBodyReader;
import jakarta.ws.rs.ext.Provider;
import jakarta.ws.rs.ext.Providers;

import org.jboss.resteasy.annotations.providers.multipart.XopWithMultipartRelated;
import org.jboss.resteasy.core.ResteasyContext;
import org.jboss.resteasy.plugins.providers.multipart.i18n.Messages;
import org.jboss.resteasy.spi.util.FindAnnotation;

/**
 * This provider is for reading xop packages packed as multipart/related. For
 * more information see {@link XopWithMultipartRelated}.
 *
 * @author Attila Kiraly
 * @version $Revision: 1 $
 */
@Provider
@Consumes("multipart/related")
public class XopWithMultipartRelatedReader implements MessageBodyReader<Object> {
    protected @Context Providers workers;

    public boolean isReadable(Class<?> type, Type genericType,
            Annotation[] annotations, MediaType mediaType) {
        return FindAnnotation.findAnnotation(annotations,
                XopWithMultipartRelated.class) != null
                || type.isAnnotationPresent(XopWithMultipartRelated.class);
    }

    public Object readFrom(Class<Object> type, Type genericType,
            Annotation[] annotations, MediaType mediaType,
            MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
            throws IOException, WebApplicationException {
        String boundary = mediaType.getParameters().get("boundary");
        if (boundary == null)
            throw new IOException(Messages.MESSAGES.unableToGetBoundary());
        MultipartRelatedInputImpl input = new MultipartRelatedInputImpl(
                mediaType, workers);
        Providers providers = ResteasyContext.getContextData(Providers.class);
        input.setProviders(providers);
        input.parse(entityStream);

        XopWithMultipartRelatedJAXBProvider xopWithMultipartRelatedJAXBProvider = new XopWithMultipartRelatedJAXBProvider(
                workers);
        return xopWithMultipartRelatedJAXBProvider.readFrom(type, genericType,
                annotations, mediaType, httpHeaders, entityStream, input);
    }
}
