/*
 * 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 System;
using System.Text;
using OpenMetaverse;
using OpenMetaverse.StructuredData;

namespace OpenSim.Framework
{
    /// <summary>
    /// Inventory Item - contains all the properties associated with an individual inventory piece.
    /// </summary>
    public class InventoryItemBase : InventoryNodeBase, ICloneable
    {
        /// <value>
        /// The inventory type of the item.  This is slightly different from the asset type in some situations.
        /// </value>
        public int InvType
        {
            get
            {
                return m_invType;
            }

            set
            {
                m_invType = value;
            }
        }
        protected int m_invType;

        /// <value>
        /// The folder this item is contained in
        /// </value>
        public UUID Folder
        {
            get
            {
                return m_folder;
            }

            set
            {
                m_folder = value;
            }
        }
        protected UUID m_folder;

        /// <value>
        /// The creator of this item
        /// </value>
        public string CreatorId
        {
            get
            {
                return m_creatorId;
            }

            set
            {
                m_creatorId = value;

                if ((m_creatorId == null) || !UUID.TryParse(m_creatorId, out m_creatorIdAsUuid))
                    m_creatorIdAsUuid = UUID.Zero;
            }
        }
        protected string m_creatorId;

        /// <value>
        /// The CreatorId expressed as a UUID.
        /// </value>
        public UUID CreatorIdAsUuid
        {
            get
            {
                if (UUID.Zero == m_creatorIdAsUuid)
                {
                    UUID.TryParse(CreatorId, out m_creatorIdAsUuid);
                }

                return m_creatorIdAsUuid;
            }
        }
        protected UUID m_creatorIdAsUuid = UUID.Zero;

        /// <summary>
        /// Extended creator information of the form <profile url>;<name>
        /// </summary>
        public string CreatorData // = <profile url>;<name>
        {
            get { return m_creatorData; }
            set { m_creatorData = value; }
        }
        protected string m_creatorData = string.Empty;

        /// <summary>
        /// Used by the DB layer to retrieve / store the entire user identification.
        /// The identification can either be a simple UUID or a string of the form
        /// uuid[;profile_url[;name]]
        /// </summary>
        public string CreatorIdentification
        {
            get
            {
                if (!string.IsNullOrEmpty(m_creatorData))
                    return m_creatorId + ';' + m_creatorData;
                else
                    return m_creatorId;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    m_creatorData = string.Empty;
                    return;
                }

                if (!value.Contains(";")) // plain UUID
                {
                    m_creatorId = value;
                }
                else // <uuid>[;<endpoint>[;name]]
                {
                    string name = "Unknown User";
                    string[] parts = value.Split(';');
                    if (parts.Length >= 1)
                        m_creatorId = parts[0];
                    if (parts.Length >= 2)
                        m_creatorData = parts[1];
                    if (parts.Length >= 3)
                        name = parts[2];

                    m_creatorData += ';' + name;
                }
            }
        }

        /// <value>
        /// The description of the inventory item (must be less than 64 characters)
        /// </value>
        
        public osUTF8 UTF8Description;
        public string Description
        {
            get { return UTF8Description == null ? string.Empty : UTF8Description.ToString();}
            set { UTF8Description = string.IsNullOrWhiteSpace(value) ? null : new osUTF8(value);}
        }

        /// <value>
        ///
        /// </value>
        public uint NextPermissions
        {
            get
            {
                return m_nextPermissions;
            }

            set
            {
                m_nextPermissions = value;
            }
        }
        protected uint m_nextPermissions;

        /// <value>
        /// A mask containing permissions for the current owner (cannot be enforced)
        /// </value>
        public uint CurrentPermissions
        {
            get
            {
                return m_currentPermissions;
            }

            set
            {
                m_currentPermissions = value;
            }
        }
        protected uint m_currentPermissions;

        /// <value>
        ///
        /// </value>
        public uint BasePermissions
        {
            get
            {
                return m_basePermissions;
            }

            set
            {
                m_basePermissions = value;
            }
        }
        protected uint m_basePermissions;

        /// <value>
        ///
        /// </value>
        public uint EveryOnePermissions
        {
            get
            {
                return m_everyonePermissions;
            }

            set
            {
                m_everyonePermissions = value;
            }
        }
        protected uint m_everyonePermissions;

        /// <value>
        ///
        /// </value>
        public uint GroupPermissions
        {
            get
            {
                return m_groupPermissions;
            }

            set
            {
                m_groupPermissions = value;
            }
        }
        protected uint m_groupPermissions;

        /// <value>
        /// This is an enumerated value determining the type of asset (eg Notecard, Sound, Object, etc)
        /// </value>
        public int AssetType
        {
            get
            {
                return m_assetType;
            }

            set
            {
                m_assetType = value;
            }
        }
        protected int m_assetType;

        /// <value>
        /// The UUID of the associated asset on the asset server
        /// </value>
        public UUID AssetID
        {
            get
            {
                return m_assetID;
            }

            set
            {
                m_assetID = value;
            }
        }
        protected UUID m_assetID;

        /// <value>
        ///
        /// </value>
        public UUID GroupID
        {
            get
            {
                return m_groupID;
            }

            set
            {
                m_groupID = value;
            }
        }
        protected UUID m_groupID;

        /// <value>
        ///
        /// </value>
        public bool GroupOwned
        {
            get
            {
                return m_groupOwned;
            }

            set
            {
                m_groupOwned = value;
            }
        }
        protected bool m_groupOwned;

        /// <value>
        ///
        /// </value>
        public int SalePrice
        {
            get
            {
                return m_salePrice;
            }

            set
            {
                m_salePrice = value;
            }
        }
        protected int m_salePrice;

        /// <value>
        ///
        /// </value>
        public byte SaleType
        {
            get
            {
                return m_saleType;
            }

            set
            {
                m_saleType = value;
            }
        }
        protected byte m_saleType;

        /// <value>
        ///
        /// </value>
        public uint Flags
        {
            get
            {
                return m_flags;
            }

            set
            {
                m_flags = value;
            }
        }
        protected uint m_flags;

        /// <value>
        ///
        /// </value>
        public int CreationDate
        {
            get
            {
                return m_creationDate;
            }

            set
            {
                m_creationDate = value;
            }
        }
        protected int m_creationDate = (int)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;

        public InventoryItemBase()
        {
        }

        public InventoryItemBase(UUID id)
        {
            ID = id;
        }

        public InventoryItemBase(UUID id, UUID owner)
        {
            ID = id;
            Owner = owner;
        }

        public object Clone()
        {
            return MemberwiseClone();
        }

        public void ToLLSDxml(osUTF8 lsl, uint flagsMask = 0xffffffff)
        {
            LLSDxmlEncode2.AddMap(lsl);
                LLSDxmlEncode2.AddElem_parent_id(Folder, lsl);
                LLSDxmlEncode2.AddElem_asset_id( AssetID, lsl);
                LLSDxmlEncode2.AddElem_item_id( ID, lsl);

                LLSDxmlEncode2.AddMap("permissions",lsl);
                    LLSDxmlEncode2.AddElem_creator_id(CreatorIdAsUuid, lsl);
                    LLSDxmlEncode2.AddElem_owner_id(Owner, lsl);
                    LLSDxmlEncode2.AddElem_group_id(GroupID, lsl);
                    LLSDxmlEncode2.AddElem("base_mask", (int)CurrentPermissions, lsl);
                    LLSDxmlEncode2.AddElem("owner_mask", (int)CurrentPermissions, lsl);
                    LLSDxmlEncode2.AddElem("group_mask", (int)GroupPermissions, lsl);
                    LLSDxmlEncode2.AddElem("everyone_mask", (int)EveryOnePermissions, lsl);
                    LLSDxmlEncode2.AddElem("next_owner_mask", (int)NextPermissions, lsl);
                    LLSDxmlEncode2.AddElem("is_owner_group", GroupOwned, lsl);
                LLSDxmlEncode2.AddEndMap(lsl);

                LLSDxmlEncode2.AddElem("type", AssetType, lsl);
                LLSDxmlEncode2.AddElem("inv_type", InvType, lsl);
                LLSDxmlEncode2.AddElem("flags", (int)(Flags & flagsMask), lsl);

                LLSDxmlEncode2.AddElem_sale_info(SalePrice, SaleType, lsl);

                LLSDxmlEncode2.AddElem_name(Name, lsl);
                LLSDxmlEncode2.AddElem("desc", Description, lsl);
                LLSDxmlEncode2.AddElem("created_at", CreationDate, lsl);

            LLSDxmlEncode2.AddEndMap(lsl);
        }
    }
}