/*

 *  Copyright 2006 The National Library of New Zealand

 *

 *  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 org.webcurator.ui.admin.validator;



import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.springframework.validation.Errors;

import org.springframework.validation.ValidationUtils;

import org.webcurator.ui.admin.command.AgencyCommand;

import org.webcurator.ui.admin.command.TemplateCommand;

import org.webcurator.ui.admin.controller.TemplateController;

import org.webcurator.ui.common.validation.AbstractBaseValidator;

import org.webcurator.ui.common.validation.ValidatorUtil;

import org.webcurator.domain.model.core.PermissionTemplate;



/**

 * Validates the Template Creation action, and checks all the fields used in creating a Permission Template

 * @author bprice

 */

public class TemplateValidator extends AbstractBaseValidator {



    

	/** @see org.springframework.validation.Validator#supports(Class).*/

    public boolean supports(Class aClass) {

        return aClass.equals(TemplateCommand.class);

    }

    /** @see org.springframework.validation.Validator#validate(Object, Errors). */

    public void validate(Object aCmd, Errors aErrors) {

        TemplateCommand tempCmd = (TemplateCommand) aCmd;

        

        ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_ACTION, "required", getObjectArrayForLabel(TemplateCommand.PARAM_ACTION), "Action command is a required field.");  

                

        if (AgencyCommand.ACTION_SAVE.equals(tempCmd.getAction())) {   

            ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_AGENCY_OID, "required", getObjectArrayForLabel(TemplateCommand.PARAM_AGENCY_OID), "A specified Agency is a required field.");

            ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_TEMPLATE_NAME, "required", getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_NAME), "The template name is a required field.");

            ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_TEMPLATE_TYPE, "required", getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_TYPE), "The template type is a required field.");

            ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_TEMPLATE_TEXT, "required", getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_TEXT), "The template text is a required field.");

            

            if (tempCmd.getTemplateType().equals(PermissionTemplate.EMAIL_TYPE_TEMPLATE))

            {

	            ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_TEMPLATE_SUBJECT, "required", getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_SUBJECT), "The template subject is a required field.");

	            ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_TEMPLATE_OVERWRITE_FROM, "required", getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_OVERWRITE_FROM), "The template overwrite from is a required field.");

	            if (tempCmd.getTemplateOverwriteFrom())

	            	ValidationUtils.rejectIfEmptyOrWhitespace(aErrors, TemplateCommand.PARAM_TEMPLATE_FROM, "required", getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_FROM), "The template from is a required field when the template overwrite option is selected.");

	        

	            if (tempCmd.getTemplateFrom() != null && tempCmd.getTemplateFrom().length() > 0) {

	                ValidatorUtil.validateRegEx(aErrors, tempCmd.getTemplateFrom(), ValidatorUtil.EMAIL_VALIDATION_REGEX, "invalid.email",getObjectArrayForLabel(TemplateCommand.PARAM_TEMPLATE_FROM),"the template from email address is invalid" );

	            }

	            

	            checkEmails(aErrors, tempCmd.getTemplateCc(), TemplateCommand.PARAM_TEMPLATE_CC, "template CC");

	            checkEmails(aErrors, tempCmd.getTemplateBcc(), TemplateCommand.PARAM_TEMPLATE_BCC, "template BCC");

            }

            

            TemplateValidatorHelper validatorHelper = new TemplateValidatorHelper(tempCmd.getTemplateText(), tempCmd.getTemplateType());

            validatorHelper.parseForErrors(aErrors);

        }

    }

    

	private void checkEmails(Errors aErrors, String emails,

			String fieldConstant, String label) {

		if (emails != null && emails.length() > 0) {

			if (emails.contains(";"))

			{

		    	for (String email: emails.split(";"))

		    	{

		    		ValidatorUtil.validateRegEx(aErrors, email, ValidatorUtil.EMAIL_VALIDATION_REGEX, "invalid.email",getObjectArrayForLabel(fieldConstant),"the "+label+" email address is invalid" );

		    	}

			}

			else

			{

				ValidatorUtil.validateRegEx(aErrors, emails, ValidatorUtil.EMAIL_VALIDATION_REGEX, "invalid.email",getObjectArrayForLabel(fieldConstant),"the "+label+" email address is invalid" );

			}

		}

	}

}