/*
 * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
 *
 * 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.traccar.api.resource;

import org.traccar.api.BaseResource;
import org.traccar.helper.model.UserUtil;
import org.traccar.mail.MailManager;
import org.traccar.geocoder.Geocoder;
import org.traccar.helper.Log;
import org.traccar.helper.LogAction;
import org.traccar.model.Server;
import org.traccar.model.User;
import org.traccar.session.cache.CacheManager;
import org.traccar.storage.StorageException;
import org.traccar.storage.query.Columns;
import org.traccar.storage.query.Condition;
import org.traccar.storage.query.Request;

import javax.annotation.Nullable;
import javax.annotation.security.PermitAll;
import javax.inject.Inject;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.Arrays;
import java.util.Collection;
import java.util.TimeZone;

@Path("server")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public class ServerResource extends BaseResource {

    @Inject
    private CacheManager cacheManager;

    @Inject
    private MailManager mailManager;

    @Inject
    @Nullable
    private Geocoder geocoder;

    @PermitAll
    @GET
    public Server get() throws StorageException {
        Server server = storage.getObject(Server.class, new Request(new Columns.All()));
        server.setEmailEnabled(mailManager.getEmailEnabled());
        server.setGeocoderEnabled(geocoder != null);
        User user = permissionsService.getUser(getUserId());
        if (user != null) {
            if (user.getAdministrator()) {
                server.setStorageSpace(Log.getStorageSpace());
            }
        } else {
            server.setNewServer(UserUtil.isEmpty(storage));
        }
        if (user != null && user.getAdministrator()) {
            server.setStorageSpace(Log.getStorageSpace());
        }
        return server;
    }

    @PUT
    public Response update(Server entity) throws StorageException {
        permissionsService.checkAdmin(getUserId());
        storage.updateObject(entity, new Request(
                new Columns.Exclude("id"),
                new Condition.Equals("id", entity.getId())));
        cacheManager.updateOrInvalidate(true, entity);
        LogAction.edit(getUserId(), entity);
        return Response.ok(entity).build();
    }

    @Path("geocode")
    @GET
    public String geocode(@QueryParam("latitude") double latitude, @QueryParam("longitude") double longitude) {
        if (geocoder != null) {
            return geocoder.getAddress(latitude, longitude, null);
        } else {
            throw new RuntimeException("Reverse geocoding is not enabled");
        }
    }

    @Path("timezones")
    @GET
    public Collection<String> timezones() {
        return Arrays.asList(TimeZone.getAvailableIDs());
    }

}