/*
 * Copyright 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.storage;

import org.traccar.model.BaseModel;
import org.traccar.model.Permission;
import org.traccar.storage.query.Request;

import java.util.List;

public abstract class Storage {

    public abstract <T> List<T> getObjects(Class<T> clazz, Request request) throws StorageException;

    public abstract <T> long addObject(T entity, Request request) throws StorageException;

    public abstract <T> void updateObject(T entity, Request request) throws StorageException;

    public abstract void removeObject(Class<?> clazz, Request request) throws StorageException;

    public abstract List<Permission> getPermissions(
            Class<? extends BaseModel> ownerClass, long ownerId,
            Class<? extends BaseModel> propertyClass, long propertyId) throws StorageException;

    public abstract void addPermission(Permission permission) throws StorageException;

    public abstract void removePermission(Permission permission) throws StorageException;

    public List<Permission> getPermissions(
            Class<? extends BaseModel> ownerClass,
            Class<? extends BaseModel> propertyClass) throws StorageException {
        return getPermissions(ownerClass, 0, propertyClass, 0);
    }

    public <T> T getObject(Class<T> clazz, Request request) throws StorageException {
        var objects = getObjects(clazz, request);
        return objects.isEmpty() ? null : objects.get(0);
    }

}