/*
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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.
 *     * 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.
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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
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System.Collections.Generic;
using libsecondlife;
using OpenSim.Framework.Communications.Cache;

namespace OpenSim.Framework.Communications
{

    /// <summary>
    /// Defines all the operations one can perform on a user's inventory.
    /// </summary>
    public interface ISecureInventoryService
    {
        string Host
        {
            get;
        }
        /// <summary>
        /// Request the inventory for a user.  This is an asynchronous operation that will call the callback when the
        /// inventory has been received
        /// </summary>
        /// <param name="userID"></param>
        /// <param name="callback"></param>
        void RequestInventoryForUser(LLUUID userID, LLUUID session_id, InventoryReceiptCallback callback);

        /// <summary>
        /// Add a new folder to the user's inventory
        /// </summary>
        /// <param name="folder"></param>
        /// <returns>true if the folder was successfully added</returns>
        bool AddFolder(InventoryFolderBase folder, LLUUID session_id);

        /// <summary>
        /// Update a folder in the user's inventory
        /// </summary>
        /// <param name="folder"></param>
        /// <returns>true if the folder was successfully updated</returns>
        bool UpdateFolder(InventoryFolderBase folder, LLUUID session_id);

        /// <summary>
        /// Move an inventory folder to a new location
        /// </summary>
        /// <param name="folder">A folder containing the details of the new location</param>
        /// <returns>true if the folder was successfully moved</returns>
        bool MoveFolder(InventoryFolderBase folder, LLUUID session_id);

        /// <summary>
        /// Purge an inventory folder of all its items and subfolders.
        /// </summary>
        /// <param name="folder"></param>
        /// <returns>true if the folder was successfully purged</returns>
        bool PurgeFolder(InventoryFolderBase folder, LLUUID session_id);

        /// <summary>
        /// Add a new item to the user's inventory
        /// </summary>
        /// <param name="item"></param>
        /// <returns>true if the item was successfully added</returns>
        bool AddItem(InventoryItemBase item, LLUUID session_id);

        /// <summary>
        /// Update an item in the user's inventory
        /// </summary>
        /// <param name="item"></param>
        /// <returns>true if the item was successfully updated</returns>
        bool UpdateItem(InventoryItemBase item, LLUUID session_id);

        /// <summary>
        /// Delete an item from the user's inventory
        /// </summary>
        /// <param name="item"></param>
        /// <returns>true if the item was successfully deleted</returns>
        bool DeleteItem(InventoryItemBase item, LLUUID session_id);

        /// <summary>
        /// Create a new inventory for the given user.
        /// </summary>
        /// <param name="user"></param>
        /// <returns>true if the inventory was successfully created, false otherwise</returns>
        bool CreateNewUserInventory(LLUUID user);

        bool HasInventoryForUser(LLUUID userID);

        /// <summary>
        /// Retrieve the root inventory folder for the given user.
        /// </summary>
        /// <param name="userID"></param>
        /// <returns>null if no root folder was found</returns>
        InventoryFolderBase RequestRootFolder(LLUUID userID);

        /// <summary>
        /// Returns a list of all the folders in a given user's inventory.
        /// </summary>
        /// <param name="userId"></param>
        /// <returns>A flat list of the user's inventory folder tree,
        /// null if there is no inventory for this user</returns>
        List<InventoryFolderBase> GetInventorySkeleton(LLUUID userId);
    }
}