/*
* 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 OpenSim 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
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* 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 System.IO;
using System.Xml;
using libsecondlife;
using Nini.Config;
using OpenSim.Framework.Console;

namespace OpenSim.Framework.Communications.Cache
{
    /// <summary>
    /// Basically a hack to give us a Inventory library while we don't have a inventory server
    /// once the server is fully implemented then should read the data from that
    /// </summary>
    public class LibraryRootFolder : InventoryFolderImpl
    {
        private LLUUID libOwner = new LLUUID("11111111-1111-0000-0000-000100bba000");
        private InventoryFolderImpl m_textureFolder;

        public LibraryRootFolder()
        {
            agentID = libOwner;
            folderID = new LLUUID("00000112-000f-0000-0000-000100bba000");
            name = "OpenSim Library";
            parentID = LLUUID.Zero;
            type = (short) -1;
            version = (ushort) 1;

            InventoryFolderImpl folderInfo = new InventoryFolderImpl();
            folderInfo.agentID = libOwner;
            folderInfo.folderID = new LLUUID("00000112-000f-0000-0000-000100bba001");
            folderInfo.name = "Texture Library";
            folderInfo.parentID = folderID;
            folderInfo.type = -1;
            folderInfo.version = 1;
            SubFolders.Add(folderInfo.folderID, folderInfo);
            m_textureFolder = folderInfo;

            CreateLibraryItems();

            string filePath = Path.Combine(Util.configDir(), "inventory/OpenSimLibrary.xml");
            if (File.Exists(filePath))
            {
                try
                {
                    XmlConfigSource source = new XmlConfigSource(filePath);
                    ReadItemsFromFile(source);
                }
                catch (XmlException e)
                {
                    MainLog.Instance.Error("AGENTINVENTORY", "Error loading " + filePath + ": " + e.ToString());
                }
            }
        }

        private void CreateLibraryItems()
        {
            InventoryItemBase item =
                CreateItem(new LLUUID("66c41e39-38f9-f75a-024e-585989bfaba9"),
                           new LLUUID("66c41e39-38f9-f75a-024e-585989bfab73"), "Default Shape", "Default Shape",
                           (int) AssetType.Bodypart, (int) InventoryType.Wearable, folderID);
            item.inventoryCurrentPermissions = 0;
            item.inventoryNextPermissions = 0;
            Items.Add(item.inventoryID, item);

            item =
                CreateItem(new LLUUID("77c41e39-38f9-f75a-024e-585989bfabc9"),
                           new LLUUID("77c41e39-38f9-f75a-024e-585989bbabbb"), "Default Skin", "Default Skin",
                           (int) AssetType.Bodypart, (int) InventoryType.Wearable, folderID);
            item.inventoryCurrentPermissions = 0;
            item.inventoryNextPermissions = 0;
            Items.Add(item.inventoryID, item);

            item =
                CreateItem(new LLUUID("77c41e39-38f9-f75a-0000-585989bf0000"),
                           new LLUUID("00000000-38f9-1111-024e-222222111110"), "Default Shirt", "Default Shirt",
                           (int) AssetType.Clothing, (int) InventoryType.Wearable, folderID);
            item.inventoryCurrentPermissions = 0;
            item.inventoryNextPermissions = 0;
            Items.Add(item.inventoryID, item);

            item =
                CreateItem(new LLUUID("77c41e39-38f9-f75a-0000-5859892f1111"),
                           new LLUUID("00000000-38f9-1111-024e-222222111120"), "Default Pants", "Default Pants",
                           (int) AssetType.Clothing, (int) InventoryType.Wearable, folderID);
            item.inventoryCurrentPermissions = 0;
            item.inventoryNextPermissions = 0;
            Items.Add(item.inventoryID, item);
        }

        public InventoryItemBase CreateItem(LLUUID inventoryID, LLUUID assetID, string name, string description,
                                            int assetType, int invType, LLUUID parentFolderID)
        {
            InventoryItemBase item = new InventoryItemBase();
            item.avatarID = libOwner;
            item.creatorsID = libOwner;
            item.inventoryID = inventoryID;
            item.assetID = assetID;
            item.inventoryDescription = description;
            item.inventoryName = name;
            item.assetType = assetType;
            item.invType = invType;
            item.parentFolderID = parentFolderID;
            item.inventoryBasePermissions = 0x7FFFFFFF;
            item.inventoryEveryOnePermissions = 0x7FFFFFFF;
            item.inventoryCurrentPermissions = 0x7FFFFFFF;
            item.inventoryNextPermissions = 0x7FFFFFFF;
            return item;
        }

        private void ReadItemsFromFile(IConfigSource source)
        {
            for (int i = 0; i < source.Configs.Count; i++)
            {
                InventoryItemBase item = new InventoryItemBase();
                item.avatarID = libOwner;
                item.creatorsID = libOwner;
                item.inventoryID =
                    new LLUUID(source.Configs[i].GetString("inventoryID", folderID.ToString()));
                item.assetID = new LLUUID(source.Configs[i].GetString("assetID", LLUUID.Random().ToString()));
                item.parentFolderID 
                    = new LLUUID(source.Configs[i].GetString("folderID", LLUUID.Random().ToString()));
                item.inventoryDescription = source.Configs[i].GetString("description", "");
                item.inventoryName = source.Configs[i].GetString("name", "");
                item.assetType = source.Configs[i].GetInt("assetType", 0);
                item.invType = source.Configs[i].GetInt("inventoryType", 0);
                item.inventoryCurrentPermissions = (uint) source.Configs[i].GetLong("currentPermissions", 0x7FFFFFFF);
                item.inventoryNextPermissions = (uint) source.Configs[i].GetLong("nextPermissions", 0x7FFFFFFF);
                item.inventoryEveryOnePermissions = (uint) source.Configs[i].GetLong("everyonePermissions", 0x7FFFFFFF);
                item.inventoryBasePermissions = (uint) source.Configs[i].GetLong("basePermissions", 0x7FFFFFFF);
                
                if (item.parentFolderID == folderID)
                {
                    Items.Add(item.inventoryID, item);
                }
                else
                {
                    // Very temporary - will only work for immediate child folders
                    if (SubFolders.ContainsKey(item.parentFolderID))
                    {
                        SubFolders[item.parentFolderID].Items.Add(item.inventoryID, item);
                    }
                }              
            }
        }
    }
}