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/*
 * Copyright 2008-2012 the original author or authors.
 *
 * 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.broadleafcommerce.openadmin.client.validation;

import com.smartgwt.client.widgets.form.validator.RegExpValidator;
import com.smartgwt.client.widgets.form.validator.Validator;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 
 * @author jfischer
 *
 */
public class ValidationFactoryManager extends ArrayList {
	
	private static final long serialVersionUID = 1L;
	
	public static final Map> EMAIL_CONFIG = new HashMap>();
	static {
		Map items = new HashMap();
		items.put("regularExpression", "^([a-zA-Z0-9_.\\-+])+@(([a-zA-Z0-9\\-])+\\.)+[a-zA-Z0-9]{2,4}$");
		items.put("errorMessage", "Invalid email address");
		EMAIL_CONFIG.put(RegExpValidator.class.getName(), items);
	}
	
	public static final Map> US_CURRENCY_CONFIG = new HashMap>();
	static {
		Map items = new HashMap();
		items.put("regularExpression", "^\\d+(\\.\\d{1,2})?$");
		items.put("errorMessage", "Invalid currency amount");
		US_CURRENCY_CONFIG.put(RegExpValidator.class.getName(), items);
	}
	
	private static ValidationFactoryManager manager = null;
	
	public static ValidationFactoryManager getInstance() {
		if (manager == null) {
			ValidationFactoryManager.manager = new ValidationFactoryManager();
			ValidationFactoryManager.manager.add(new PasswordMatchValidationFactory());
            ValidationFactoryManager.manager.add(new FieldMatchValidationFactory());
		}
		return ValidationFactoryManager.manager;
	}
	
	protected ValidationFactory defaultFactory = new BroadleafDefaultValidationFactory();

	public Validator[] createValidators(Map> validatorConfiguration, String fieldName) {
		List validators = new ArrayList();
		for (String validationClassname : validatorConfiguration.keySet()) {
			boolean factoryFound = false;
			for (ValidationFactory factory : this) {
				if (factory.isValidFactory(validationClassname, validatorConfiguration.get(validationClassname))) {
					Validator validator = factory.createValidator(validationClassname, validatorConfiguration.get(validationClassname), fieldName);
					validators.add(validator);
					factoryFound = true;
				}
			}
			if (!factoryFound) {
				//unable to find a validator factory registered - use the default factory
				Validator validator = defaultFactory.createValidator(validationClassname, validatorConfiguration.get(validationClassname), fieldName);
				validators.add(validator);
			}
		}
		
		return validators.toArray(new Validator[]{});
	}

	public ValidationFactory getDefaultFactory() {
		return defaultFactory;
	}

	public void setDefaultFactory(ValidationFactory defaultFactory) {
		this.defaultFactory = defaultFactory;
	}
	
}