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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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*       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.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.MainLog.Instance.Warn("Db4LocalStorage Opening " + dfile);
            datastore = dfile;
            try
            {
                db = Db4oFactory.OpenFile(datastore);
                OpenSim.Framework.Console.MainLog.Instance.Verbose("Db4LocalStorage creation");
            }
            catch (Exception e)
            {
                db.Close();
                OpenSim.Framework.Console.MainLog.Instance.Warn("Db4LocalStorage :Constructor - Exception occured");
                OpenSim.Framework.Console.MainLog.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.MainLog.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.MainLog.Instance.Verbose("LoadWorld() - Loading world....");
            float[] heightmap = null;
            OpenSim.Framework.Console.MainLog.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.MainLog.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.MainLog.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.landingType = parcel.landingType;
                updateParcel.mediaAutoScale = parcel.mediaAutoScale;
                updateParcel.mediaID = parcel.mediaID;
                updateParcel.mediaURL = parcel.mediaURL;
                updateParcel.musicURL = parcel.musicURL;
                updateParcel.localID = parcel.localID;
                updateParcel.ownerID = parcel.ownerID;
                updateParcel.passHours = parcel.passHours;
                updateParcel.passPrice = parcel.passPrice;
                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;
                updateParcel.snapshotID = parcel.snapshotID;
                updateParcel.userLocation = parcel.userLocation;
                updateParcel.userLookAt = parcel.userLookAt;

                db.Set(updateParcel);
            }
            else
            {
                db.Set(parcel);
            }
            db.Commit();
        }

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

                SaveParcel(parcel_data[i]);

            }
            MainLog.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()
        {
            MainLog.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)
        {
            MainLog.Instance.Notice("Parcel Backup: Loading Parcels...");
            IObjectSet result = db.Get(typeof(ParcelData));
            if (result.Count > 0)
            {
                MainLog.Instance.Notice("Parcel Backup: Parcels exist in database.");
                foreach (ParcelData parcelData in result)
                {

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