/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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 org.apereo.portal.portlets.sqlquery;

import java.io.IOException;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletMode;
import javax.portlet.PortletModeException;
import javax.portlet.PortletPreferences;
import javax.portlet.PortletRequest;
import javax.portlet.ReadOnlyException;
import javax.portlet.ValidatorException;
import org.apache.commons.lang.StringUtils;
import org.apereo.portal.jpa.BasePortalJpaDao;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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.RequestParam;

/**
 * Handles CONFIG mode for the SQL query portlet.
 *
 */
@Controller
@RequestMapping("CONFIG")
public class SqlQueryConfigurationController {

    private String defaultDataSource = BasePortalJpaDao.PERSISTENCE_UNIT_NAME;
    private String defaultView = "jsp/SqlQuery/results";

    @RequestMapping
    public String getAccountFormView(PortletRequest request, Model model) {
        model.addAttribute("form", getConfigurationForm(request));
        return "jsp/SqlQuery/config";
    }

    @RequestMapping(params = "action=updateConfiguration")
    public void saveConfiguration(
            ActionRequest request,
            ActionResponse response,
            @ModelAttribute("form") SqlQueryConfigForm form,
            BindingResult errors,
            @RequestParam(value = "Save", required = false) String save)
            throws PortletModeException, IOException, ValidatorException, ReadOnlyException {

        if (StringUtils.isNotBlank(save)) {

            PortletPreferences prefs = request.getPreferences();
            prefs.setValue(
                    SqlQueryPortletController.DATASOURCE_BEAN_NAME_PARAM_NAME,
                    form.getDataSource());
            prefs.setValue(SqlQueryPortletController.SQL_QUERY_PARAM_NAME, form.getSqlQuery());
            prefs.setValue(SqlQueryPortletController.VIEW_PARAM_NAME, form.getViewName());
            prefs.setValue(SqlQueryPortletController.PREF_CACHE_NAME, form.getCacheName());
            prefs.store();
        }

        response.setPortletMode(PortletMode.VIEW);
    }

    public SqlQueryConfigForm getConfigurationForm(PortletRequest request) {
        PortletPreferences prefs = request.getPreferences();
        SqlQueryConfigForm form = new SqlQueryConfigForm();

        form.setDataSource(
                prefs.getValue(
                        SqlQueryPortletController.DATASOURCE_BEAN_NAME_PARAM_NAME,
                        defaultDataSource));
        form.setViewName(prefs.getValue(SqlQueryPortletController.VIEW_PARAM_NAME, defaultView));
        form.setSqlQuery(prefs.getValue(SqlQueryPortletController.SQL_QUERY_PARAM_NAME, ""));
        form.setCacheName(
                prefs.getValue(
                        SqlQueryPortletController.PREF_CACHE_NAME,
                        SqlQueryPortletController.DEFAULT_CACHE_NAME));

        return form;
    }
}