OpenSim-Test/OpenSim/Region/Framework/Scenes/Scripting/ScriptUtils.cs

/*
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 * modification, are permitted provided that the following conditions are met:
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 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
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 *       derived from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 */

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

namespace OpenSim.Region.Framework.Scenes.Scripting
{
    /// <summary>
    /// Utility functions for use by scripts manipulating the scene.
    /// </summary>
    public static class ScriptUtils
    {
        /// <summary>
        /// Get an asset id given an item name and an item type.
        /// </summary>
        /// <returns>UUID.Zero if the name and type did not match any item.</returns>
        /// <param name='part'></param>
        /// <param name='name'></param>
        /// <param name='type'></param>
        public static UUID GetAssetIdFromItemName(SceneObjectPart part, string name, int type)
        {
            TaskInventoryItem item = part.Inventory.GetInventoryItem(name);

            if (item != null && item.Type == type)
                return item.AssetID;
            else
                return UUID.Zero;
        }

        /// <summary>
        /// accepts a valid UUID, -or- a name of an inventory item.
        /// Returns a valid UUID or UUID.Zero if key invalid and item not found
        /// in prim inventory.
        /// </summary>
        /// <param name="part">Scene object part to search for inventory item</param>
        /// <param name="key"></param>
        /// <returns></returns>
        public static UUID GetAssetIdFromKeyOrItemName(SceneObjectPart part, string identifier)
        {
            UUID key;

            // if we can parse the string as a key, use it.
            // else try to locate the name in inventory of object. found returns key,
            // not found returns UUID.Zero
            if (!UUID.TryParse(identifier, out key))
            {
                TaskInventoryItem item = part.Inventory.GetInventoryItem(identifier);

                if (item != null)
                    key = item.AssetID;
                else
                    key = UUID.Zero;
            }

            return key;
        }

        /// <summary>
        /// Return the UUID of the asset matching the specified key or name
        /// and asset type.
        /// </summary>
        /// <param name="part">Scene object part to search for inventory item</param>
        /// <param name="identifier"></param>
        /// <param name="type"></param>
        /// <returns></returns>
        public static UUID GetAssetIdFromKeyOrItemName(SceneObjectPart part, string identifier, AssetType type)
        {
            UUID key;
            if (UUID.TryParse(identifier, out key))
                return key;

            TaskInventoryItem item = part.Inventory.GetInventoryItem(identifier);
            if (item != null && item.Type == (int)type)
                return item.AssetID;

            return UUID.Zero;
        }

        public static UUID GetAssetIdFromKeyOrItemName(SceneObjectPart part, SceneObjectPart host, string identifier, AssetType type)
        {
            UUID key;
            if (UUID.TryParse(identifier, out key))
                return key;

            TaskInventoryItem item = part.Inventory.GetInventoryItem(identifier);
            if (item != null && item.Type == (int)type)
                return item.AssetID;

            if (part.LocalId != host.LocalId)
            {
                item = host.Inventory.GetInventoryItem(identifier);
                if (item != null && item.Type == (int)type)
                    return item.AssetID;
            }
            return UUID.Zero;
        }
    }
}