/*
 * Copyright (c) 2005-2011 Grameen Foundation USA
 * All rights reserved.
 *
 * 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.
 *
 * See also http://www.apache.org/licenses/LICENSE-2.0.html for an
 * explanation of the license and how it is applied.
 */

package org.mifos.ui.core.controller;

import javax.validation.Valid;

import org.apache.commons.lang.StringUtils;
import org.mifos.application.admin.servicefacade.AdminServiceFacade;
import org.mifos.dto.screen.ProductCategoryDetailsDto;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/editCategoryInformation")
@SessionAttributes("formBean")
public class EditProductCategoryController {

    private static final String CANCEL_PARAM = "CANCEL";
    private static final String REDIRECT_TO_ADMIN_SCREEN = "redirect:/AdminAction.do?method=load";

    @Autowired
    private AdminServiceFacade adminServiceFacade;

    protected EditProductCategoryController(){
        //empty controller for spring auto wiring
    }

    public EditProductCategoryController(final AdminServiceFacade adminServiceFacade){
        this.adminServiceFacade=adminServiceFacade;
    }

    @edu.umd.cs.findbugs.annotations.SuppressWarnings
    @RequestMapping(method = RequestMethod.POST)
    public ModelAndView processFormSubmit(@RequestParam(value = CANCEL_PARAM, required = false) String cancel,
                                            @ModelAttribute("formBean") @Valid ProductCategoryFormBean formBean,
                                            BindingResult result) {
        ModelAndView modelAndView = new ModelAndView();
        if (StringUtils.isNotBlank(cancel)) {
            modelAndView.setViewName(REDIRECT_TO_ADMIN_SCREEN);
        } else if (result.hasErrors()) {
            modelAndView.setViewName("editCategoryInformation");
            modelAndView.addObject("formBean", formBean);
        }else{
            modelAndView.setViewName("categoryPreview");
            modelAndView.addObject("formBean", formBean);
        }
        modelAndView.addObject("breadcrumbs", new AdminBreadcrumbBuilder().withLink("admin.viewproductcategories", "viewProductCategories.ftl").withLink(formBean.getProductCategoryName(),"").build());
        return modelAndView;
    }


    @RequestMapping(method = RequestMethod.GET)
    @ModelAttribute("formBean")
    public ProductCategoryFormBean showCategory(@RequestParam(value = "globalPrdCategoryNum", required = true) String globalPrdCategoryNum) {

        ProductCategoryDetailsDto productCategoryDetailsDto = adminServiceFacade.retrieveProductCateogry(globalPrdCategoryNum);

        ProductCategoryFormBean productCategoryFormBean=new ProductCategoryFormBean();
        productCategoryFormBean.setGlobalPrdCategoryNum(globalPrdCategoryNum);
        productCategoryFormBean.setProductCategoryDesc(productCategoryDetailsDto.getProductCategoryDesc());
        productCategoryFormBean.setProductCategoryName(productCategoryDetailsDto.getProductCategoryName());
        productCategoryFormBean.setProductCategoryStatusId(productCategoryDetailsDto.getProductCategoryStatusId().toString());
        productCategoryFormBean.setProductType(productCategoryDetailsDto.getProductTypeName());
        productCategoryFormBean.setProductTypeId(productCategoryDetailsDto.getProductTypeId().toString());

        return productCategoryFormBean;
    }
}