/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.sdc.be.servlets;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Consumes;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.common.api.Constants;
import org.openecomp.sdc.exception.ResponseFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.gson.JsonSyntaxException;
import com.jcabi.aspects.Loggable;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;

@Loggable(prepend = true, value = Loggable.DEBUG, trim = false)
public class RequirementsServlet extends BeGenericServlet {

	private static Logger log = LoggerFactory.getLogger(RequirementsServlet.class.getName());

	@PUT
	@Path("resources/{resourceId}/requirements/{requirementId}")
	@Consumes(MediaType.APPLICATION_JSON)
	@Produces(MediaType.APPLICATION_JSON)
	@ApiOperation(value = "Update Resource Requirement", httpMethod = "PUT", notes = "Returns updated requirement", response = Response.class)
	@ApiResponses(value = { @ApiResponse(code = 200, message = "Resource requirement updated"), @ApiResponse(code = 403, message = "Restricted operation"), @ApiResponse(code = 400, message = "Invalid content / Missing content") })
	public Response updateRequirement(@ApiParam(value = "resource id to update with new requirement", required = true) @PathParam("resourceId") final String resourceId,
			@ApiParam(value = "requirement id to update", required = true) @PathParam("requirementId") final String requirementId, @ApiParam(value = "Resource property to update", required = true) String requirementData,
			@Context final HttpServletRequest request, @HeaderParam(value = Constants.USER_ID_HEADER) String userId) {

		// Convert RequirementDefinition from JSON
		// TODO: it's going to be another object, probably. This is placeholder
		// for sake of JSON validation
		// RequirementDefinition requirementDefinition;
		ResponseFormat responseFormat;
		try {
			// requirementDefinition = gson.fromJson(requirementData,
			// RequirementDefinition.class);
			// .....

			// TODO pass real entity
			return buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), null);
		} catch (JsonSyntaxException e) {
			// INVALID JSON
			responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
			return buildErrorResponse(responseFormat);
		} catch (Exception e) {
			log.debug("Unexpected error: {}", e);
			responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR);
			return buildErrorResponse(responseFormat);
		}
	}
}