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/*******************************************************************************
 * Copyright (C) 2022-2023 WaveMaker, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package com.wavemaker.runtime.resolver;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.core.MethodParameter;
import org.springframework.data.domain.Pageable;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

import com.wavemaker.runtime.commons.WMAppContext;

/**
 * @author Uday Shankar
 */
public class ServiceBasedPageableHandlerMethodArgumentResolver extends WMPageableHandlerMethodArgumentResolver {

    private static final Logger logger = LoggerFactory.getLogger(ServiceBasedPageableHandlerMethodArgumentResolver.class);

    @Override
    public Pageable resolveArgument(MethodParameter methodParameter, ModelAndViewContainer mavContainer,
                                    NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        HttpServletRequest servletRequest = (HttpServletRequest) webRequest.getNativeRequest();
        String pathInfo = servletRequest.getPathInfo();
        String serviceId = null;
        if (pathInfo.indexOf('/') != -1) {
            String temp = pathInfo.substring(1);
            if (temp.indexOf('/') == -1) {
                serviceId = temp;
            } else {
                serviceId = temp.substring(0, temp.indexOf('/'));
            }
        }
        if (StringUtils.isNotBlank(serviceId)) {
            try {
                HandlerMethodArgumentResolver handlerMethodArgumentResolver = WMAppContext.getInstance().getSpringBean(serviceId + "PageableHandlerMethodResolver");
                return (Pageable) handlerMethodArgumentResolver.resolveArgument(methodParameter, mavContainer, webRequest, binderFactory);
            } catch (NoSuchBeanDefinitionException e) {
                logger.debug("No service level pageableHandlerMethodResolver found for request url {}, using the app default resolver", servletRequest.getRequestURI());
            }
        }
        return super.resolveArgument(methodParameter, mavContainer, webRequest, binderFactory);
    }
}