/**

 * The contents of this file are subject to the OpenMRS Public License

 * Version 1.0 (the "License"); you may not use this file except in

 * compliance with the License. You may obtain a copy of the License at

 * http://license.openmrs.org

 *

 * Software distributed under the License is distributed on an "AS IS"

 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the

 * License for the specific language governing rights and limitations

 * under the License.

 *

 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.

 */

package org.openmrs.web.attribute.handler;



import java.util.HashMap;

import java.util.Map;



import javax.servlet.http.HttpServletRequest;



import org.apache.commons.lang.StringUtils;

import org.openmrs.Concept;

import org.openmrs.api.context.Context;

import org.openmrs.customdatatype.CustomDatatype;

import org.openmrs.customdatatype.InvalidCustomValueException;

import org.openmrs.customdatatype.datatype.ConceptDatatype;

import org.openmrs.messagesource.MessageSourceService;

import org.springframework.stereotype.Component;



/**

 * Handler for the concept custom datatype

 */

@Component

public class ConceptDatatypeHandler implements FieldGenDatatypeHandler<ConceptDatatype, Concept> {



	/**

	 * @see org.openmrs.customdatatype.CustomDatatypeHandler#setHandlerConfiguration(java.lang.String)

	 */

	@Override

	public void setHandlerConfiguration(String arg0) {

		// not used

	}



	/**

	 * @see org.openmrs.web.attribute.handler.FieldGenDatatypeHandler#getWidgetName()

	 */

	@Override

	public String getWidgetName() {

		return "concept";

	}



	/**

	 * @see org.openmrs.web.attribute.handler.FieldGenDatatypeHandler#getWidgetConfiguration()

	 */

	@Override

	public Map<String, Object> getWidgetConfiguration() {

		MessageSourceService mss = Context.getMessageSourceService();

		Map<String, Object> ret = new HashMap<String, Object>();

		ret.put("isNullable", "false");

		ret.put("trueLabel", mss.getMessage("general.true"));

		ret.put("falseLabel", mss.getMessage("general.false"));

		return ret;

	}



	/**

	 * @see org.openmrs.web.attribute.handler.FieldGenDatatypeHandler#getValue(org.openmrs.customdatatype.CustomDatatype, javax.servlet.http.HttpServletRequest, java.lang.String)

	 */

	@Override

	public Concept getValue(org.openmrs.customdatatype.datatype.ConceptDatatype datatype, HttpServletRequest request,

	        String formFieldName) throws InvalidCustomValueException {

		String result = request.getParameter(formFieldName);

		if (StringUtils.isBlank(result))

			return null;

		try {

			return new Concept();

		}

		catch (Exception e) {

			throw new InvalidCustomValueException("Invalid concept: " + result);

		}

	}



	/**

	 * @see org.openmrs.web.attribute.handler.HtmlDisplayableDatatypeHandler#toHtmlSummary(org.openmrs.customdatatype.CustomDatatype, java.lang.String)

	 */

	@Override

	public CustomDatatype.Summary toHtmlSummary(CustomDatatype<Concept> datatype, String valueReference) {

		return new CustomDatatype.Summary(valueReference, true);

	}



	/**

	 * @see org.openmrs.web.attribute.handler.HtmlDisplayableDatatypeHandler#toHtml(org.openmrs.customdatatype.CustomDatatype, java.lang.String)

	 */

	@Override

	public String toHtml(CustomDatatype<Concept> datatype, String valueReference) {

		return valueReference;

	}

}