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/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSimulator Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using OpenSim.Framework;
using System.Collections.Generic;
using OpenMetaverse;

namespace OpenSim.Services.Interfaces
{
    public interface IGridService
    {
        /// <summary>
        /// Register a region with the grid service.
        /// </summary>
        /// <param name="regionInfos"> </param>
        /// <returns></returns>
        /// <exception cref="System.Exception">Thrown if region registration failed</exception>
        bool RegisterRegion(UUID scopeID, SimpleRegionInfo regionInfos);

        /// <summary>
        /// Deregister a region with the grid service.
        /// </summary>
        /// <param name="regionID"></param>
        /// <returns></returns>
        /// <exception cref="System.Exception">Thrown if region deregistration failed</exception>
        bool DeregisterRegion(UUID regionID);   

        /// <summary>
        /// Get information about the regions neighbouring the given co-ordinates (in meters).
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        List<SimpleRegionInfo> GetNeighbours(UUID scopeID, int x, int y);

        SimpleRegionInfo GetRegionByUUID(UUID scopeID, UUID regionID);

        /// <summary>
        /// Get the region at the given position (in meters)
        /// </summary>
        /// <param name="scopeID"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        SimpleRegionInfo GetRegionByPosition(UUID scopeID, int x, int y);
        
        SimpleRegionInfo GetRegionByName(UUID scopeID, string regionName);

        /// <summary>
        /// Get information about regions starting with the provided name. 
        /// </summary>
        /// <param name="name">
        /// The name to match against.
        /// </param>
        /// <param name="maxNumber">
        /// The maximum number of results to return.
        /// </param>
        /// <returns>
        /// A list of <see cref="RegionInfo"/>s of regions with matching name. If the
        /// grid-server couldn't be contacted or returned an error, return null. 
        /// </returns>
        List<SimpleRegionInfo> GetRegionsByName(UUID scopeID, string name, int maxNumber);

        List<SimpleRegionInfo> GetRegionRange(UUID scopeID, int xmin, int xmax, int ymin, int ymax);

    }
}