/*
 * JBoss, Home of Professional Open Source
 *
 * Copyright 2013 Red Hat, Inc. and/or its affiliates.
 *
 * 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.picketlink.scim.endpoints;

import javax.enterprise.context.RequestScoped;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
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.jboss.logging.Logger;
import org.picketlink.scim.codec.SCIMParser;
import org.picketlink.scim.codec.SCIMWriter;
import org.picketlink.scim.codec.SCIMWriterException;
import org.picketlink.scim.model.v11.SCIMUser;

/**
 * REST Endpoint for Users
 *
 * @author anil saldhana
 * @since Apr 9, 2013
 */
@Path("/Users")
@RequestScoped
public class UsersEndpoint extends AbstractSCIMEndpoint {
    private static Logger log = Logger.getLogger(UsersEndpoint.class);

    // Get an user
    @GET
    @Path("{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public Response getUser(@Context HttpServletRequest request, @Context ServletContext sc, @PathParam("id") String userId) {
        verifyDataProvider(sc);
        try {
            dataProvider.initializeConnection();

            SCIMUser user = dataProvider.getUser(userId);
            SCIMWriter writer = new SCIMWriter();

            String json = "";
            try {
                json = writer.json(user);
            } catch (SCIMWriterException e) {
                throw new RuntimeException(e);
            }
            return Response.status(200).entity(json).build();
        } finally {
            dataProvider.closeConnection();
        }
    }

    // Create an user
    @POST
    @Produces(MediaType.APPLICATION_JSON)
    public Response createUser(@Context HttpServletRequest request, @Context ServletContext sc) {
        verifyDataProvider(sc);
        try {
            // Parse the data
            SCIMParser parser = new SCIMParser();
            SCIMUser user = null;
            try {
                user = parser.parseUser(request.getInputStream());
            } catch (Exception e1) {
                throw new RuntimeException(e1);
            }

            dataProvider.initializeConnection();
            String id = dataProvider.createUser(user);

            user.setId(id);

            SCIMWriter writer = new SCIMWriter();

            String json = "";
            try {
                json = writer.json(user);
            } catch (SCIMWriterException e) {
                throw new RuntimeException(e);
            }
            return Response.status(200).entity(json).build();
        } finally {
            dataProvider.closeConnection();
        }
    }

    @DELETE
    @Path("{id}")
    public Response deleteUser(@Context HttpServletRequest request, @Context ServletContext sc,@PathParam("id") String userId) {
        verifyDataProvider(sc);
        try{
            dataProvider.initializeConnection();
            boolean result = dataProvider.deleteUser(userId);
            int responseCode = 404;
            if(result){
                responseCode = 200;
            }
            return Response.status(responseCode).build();
        } finally {
            dataProvider.closeConnection();
        }
    }
}