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* Copyright (c) Contributors, http://www.openmetaverse.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
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* modification, are permitted provided that the following conditions are met:
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*     * Redistributions in binary form must reproduce the above copyright
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*       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
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*/
using System;
using System.Collections.Generic;
using Db4objects.Db4o;
using Db4objects.Db4o.Query;

using libsecondlife;
using OpenSim.Framework.Interfaces;
using OpenSim.Framework.Types;
using OpenSim.Framework.Terrain;
using OpenSim.Framework.Console;


namespace OpenSim.Storage.LocalStorageDb4o
{
	/// <summary>
	/// 
	/// </summary>
	public class Db4LocalStorage : ILocalStorage
	{
		private IObjectContainer db;
        private string datastore;
		
		public Db4LocalStorage()
		{
			
		}

        public void Initialise(string dfile)
        {
            OpenSim.Framework.Console.MainConsole.Instance.Warn("Db4LocalStorage Opening " + dfile);
            datastore = dfile;
            try
            {
                db = Db4oFactory.OpenFile(datastore);
                OpenSim.Framework.Console.MainConsole.Instance.Verbose("Db4LocalStorage creation");
            }
            catch (Exception e)
            {
                db.Close();
                OpenSim.Framework.Console.MainConsole.Instance.Warn("Db4LocalStorage :Constructor - Exception occured");
                OpenSim.Framework.Console.MainConsole.Instance.Warn(e.ToString());
            }
        }
		
		public void StorePrim(PrimData prim)
		{
			IObjectSet result = db.Query(new UUIDPrimQuery(prim.FullID));
			if(result.Count>0)
			{
				//prim already in storage
				//so update it
				PrimData found = (PrimData) result.Next();
				found.PathBegin = prim.PathBegin;
				found.PathCurve= prim.PathCurve;
				found.PathEnd = prim.PathEnd;
				found.PathRadiusOffset = prim.PathRadiusOffset;
				found.PathRevolutions = prim.PathRevolutions;
				found.PathScaleX= prim.PathScaleX;
				found.PathScaleY = prim.PathScaleY;
				found.PathShearX = prim.PathShearX;
				found.PathShearY = prim.PathShearY;
				found.PathSkew = prim.PathSkew;
				found.PathTaperX = prim.PathTaperX;
				found.PathTaperY = prim.PathTaperY;
				found.PathTwist = prim.PathTwist;
				found.PathTwistBegin = prim.PathTwistBegin;
				found.PCode = prim.PCode;
				found.ProfileBegin = prim.ProfileBegin;
				found.ProfileCurve = prim.ProfileCurve;
				found.ProfileEnd = prim.ProfileEnd;
				found.ProfileHollow = prim.ProfileHollow;
				found.Position = prim.Position;
				found.Rotation = prim.Rotation;
                found.Texture = prim.Texture;
				db.Set(found);
				db.Commit();
			}
			else
			{
				//not in storage
				db.Set(prim);
				db.Commit();
			}
		}
		
		public void RemovePrim(LLUUID primID)
		{
			IObjectSet result = db.Query(new UUIDPrimQuery(primID));
			if(result.Count>0)
			{
				PrimData found = (PrimData) result.Next();
				db.Delete(found);
			}
		}
		
		
		public void LoadPrimitives(ILocalStorageReceiver receiver)
		{
			IObjectSet result = db.Get(typeof(PrimData));
			OpenSim.Framework.Console.MainConsole.Instance.Verbose("Db4LocalStorage.cs: LoadPrimitives() - number of prims in storages is "+result.Count);
			foreach (PrimData prim in result) {
				receiver.PrimFromStorage(prim);
			}
		}

        public float[] LoadWorld()
        {
            OpenSim.Framework.Console.MainConsole.Instance.Verbose("LoadWorld() - Loading world....");
            float[] heightmap = null;
            OpenSim.Framework.Console.MainConsole.Instance.Verbose("LoadWorld() - Looking for a heightmap in local DB");
            IObjectSet world_result = db.Get(typeof(MapStorage));
            if (world_result.Count > 0)
            {
                OpenSim.Framework.Console.MainConsole.Instance.Verbose("LoadWorld() - Found a heightmap in local database, loading");
                MapStorage map = (MapStorage)world_result.Next();
                //blank.LandMap = map.Map;
                heightmap = map.Map;
            }
            return heightmap;
        }

        public void SaveMap(float[] heightmap)
        {
            IObjectSet world_result = db.Get(typeof(MapStorage));
            if (world_result.Count > 0)
            {
                OpenSim.Framework.Console.MainConsole.Instance.Verbose("SaveWorld() - updating saved copy of heightmap in local database");
                MapStorage map = (MapStorage)world_result.Next();
                db.Delete(map);
            }
            MapStorage map1 = new MapStorage();
            map1.Map = heightmap; //OpenSim_Main.local_world.LandMap;
            db.Set(map1);
            db.Commit();
        }

        public void SaveParcel(ParcelData parcel)
        {
            IObjectSet result = db.Query(new UUIDParcelQuery(parcel.globalID));
            if (result.Count > 0)
            {
                //Old Parcel
                ParcelData updateParcel = (ParcelData)result.Next();
                updateParcel.AABBMax = parcel.AABBMax;
                updateParcel.AABBMin = parcel.AABBMin;
                updateParcel.area = parcel.area;
                updateParcel.auctionID = parcel.auctionID;
                updateParcel.authBuyerID = parcel.authBuyerID;
                updateParcel.category = parcel.category;
                updateParcel.claimDate = parcel.claimDate;
                updateParcel.claimPrice = parcel.claimPrice;
                updateParcel.groupID = parcel.groupID;
                updateParcel.groupPrims = parcel.groupPrims;
                updateParcel.isGroupOwned = parcel.isGroupOwned;
                updateParcel.localID = parcel.localID;
                updateParcel.ownerID = parcel.ownerID;
                updateParcel.parcelBitmapByteArray = (byte[])parcel.parcelBitmapByteArray.Clone();
                updateParcel.parcelDesc = parcel.parcelDesc;
                updateParcel.parcelFlags = parcel.parcelFlags;
                updateParcel.parcelName = parcel.parcelName;
                updateParcel.parcelStatus = parcel.parcelStatus;
                updateParcel.salePrice = parcel.salePrice;
                
                db.Set(updateParcel);
            }
            else
            {
                db.Set(parcel);
            }
            db.Commit();                
        }

        public void SaveParcels(ParcelData[] parcel_data)
        {
            MainConsole.Instance.Notice("Parcel Backup: Saving Parcels...");
            int i;
            for (i = 0; i < parcel_data.GetLength(0); i++)
            {

                SaveParcel(parcel_data[i]);

            }
            MainConsole.Instance.Notice("Parcel Backup: Parcel Save Complete");
        }

        public void RemoveParcel(ParcelData parcel)
        {
            IObjectSet result = db.Query(new UUIDParcelQuery(parcel.globalID));
            if (result.Count > 0)
            {
                db.Delete(result[0]);
            }
            db.Commit();
        }
        public void RemoveAllParcels()
        {
            MainConsole.Instance.Notice("Parcel Backup: Removing all parcels...");
            IObjectSet result = db.Get(typeof(ParcelData));
            if (result.Count > 0)
            {
                foreach (ParcelData parcelData in result)
                {
                    RemoveParcel(parcelData);
                }
            }
        }

        public void LoadParcels(ILocalStorageParcelReceiver recv)
        {
            MainConsole.Instance.Notice("Parcel Backup: Loading Parcels...");
            IObjectSet result = db.Get(typeof(ParcelData));
            if (result.Count > 0)
            {
                MainConsole.Instance.Notice("Parcel Backup: Parcels exist in database.");
                foreach (ParcelData parcelData in result)
                {

                    recv.ParcelFromStorage(parcelData);
                }
            }
            else
            {
                MainConsole.Instance.Notice("Parcel Backup: No parcels exist. Creating basic parcel.");
                recv.NoParcelDataFromStorage();
            }
            MainConsole.Instance.Notice("Parcel Backup: Parcels Restored");
        }
		public void ShutDown()
		{
			db.Commit();
			db.Close();
		}
	}
}