package org.jboss.resteasy.core;

import java.io.UnsupportedEncodingException;
import java.lang.annotation.Annotation;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Type;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.List;

import jakarta.ws.rs.BadRequestException;
import jakarta.ws.rs.NotFoundException;
import jakarta.ws.rs.QueryParam;

import org.jboss.resteasy.resteasy_jaxrs.i18n.Messages;
import org.jboss.resteasy.spi.HttpRequest;
import org.jboss.resteasy.spi.HttpResponse;
import org.jboss.resteasy.spi.ResteasyProviderFactory;
import org.jboss.resteasy.spi.ValueInjector;

/**
 * @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
 * @version $Revision: 1 $
 */
public class QueryParamInjector extends StringParameterInjector implements ValueInjector {
    private boolean encode;
    private String encodedName;

    public QueryParamInjector(final Class<?> type, final Type genericType, final AccessibleObject target,
            final String paramName, final String defaultValue, final boolean encode, final Annotation[] annotations,
            final ResteasyProviderFactory factory) {
        super(type, genericType, paramName, QueryParam.class, defaultValue, target, annotations, factory);
        this.encode = encode;
        try {
            this.encodedName = URLDecoder.decode(paramName, StandardCharsets.UTF_8.name());
        } catch (UnsupportedEncodingException e) {
            throw new BadRequestException(Messages.MESSAGES.unableToDecodeQueryString());
        }
    }

    @Override
    protected void throwProcessingException(String message, Throwable cause) {
        throw new NotFoundException(message, cause);
    }

    @Override
    public Object inject(HttpRequest request, HttpResponse response, boolean unwrapAsync) {
        if (encode) {
            List<String> list = request.getUri().getQueryParameters(false).get(encodedName);
            return extractValues(list);
        } else {
            List<String> list = request.getUri().getQueryParameters().get(paramName);
            return extractValues(list);

        }
    }

    @Override
    public Object inject(boolean unwrapAsync) {
        throw new RuntimeException(Messages.MESSAGES.illegalToInjectQueryParam());
    }

}
