using System;
using libsecondlife;
using System.Collections.Generic;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Framework.Communications.Cache;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;

namespace OpenSim.Region.Environment.Modules
{
    public class AvatarFactoryModule : IAvatarFactory
    {
        private Scene m_scene = null;
        private Dictionary<LLUUID, AvatarAppearance> m_avatarsAppearance = new Dictionary<LLUUID, AvatarAppearance>();

        public bool TryGetAvatarAppearance(LLUUID avatarId, out AvatarAppearance appearance)
        {
            if (m_avatarsAppearance.ContainsKey(avatarId))
            {
                appearance = m_avatarsAppearance[avatarId];
                return true;
            }
            else
            {
                AvatarWearable[] wearables;
                byte[] visualParams;
                GetDefaultAvatarAppearance(out wearables, out visualParams);
                appearance = new AvatarAppearance(avatarId, wearables, visualParams);
                m_avatarsAppearance[avatarId] = appearance;
                return true;
            }
        }


        public void Initialise(Scene scene, IConfigSource source)
        {
            scene.RegisterModuleInterface<IAvatarFactory>(this);
            scene.EventManager.OnNewClient += NewClient;

            if (m_scene == null)
            {
                m_scene = scene;
            }
        }

        public void PostInitialise()
        {
        }

        public void Close()
        {
        }

        public string Name
        {
            get { return "Default Avatar Factory"; }
        }

        public bool IsSharedModule
        {
            get { return true; }
        }

        public void NewClient(IClientAPI client)
        {
           client.OnAvatarNowWearing += AvatarIsWearing;
        }

        public void RemoveClient(IClientAPI client)
        {
         // client.OnAvatarNowWearing -= AvatarIsWearing;
        }

        public void AvatarIsWearing(Object sender, AvatarWearingArgs e)
        {
            IClientAPI clientView = (IClientAPI)sender;
            CachedUserInfo profile = m_scene.CommsManager.UserProfileCacheService.GetUserDetails(clientView.AgentId);
            if (profile != null)
            {
                if (profile.RootFolder != null)
                {
                    //Todo look up the assetid from the inventory cache for each itemId that is in AvatarWearingArgs
                    // then store assetid and itemId and wearable type in a database
                    foreach (AvatarWearingArgs.Wearable wear in e.NowWearing)
                    {
                        if (wear.Type < 13)
                        {
                            LLUUID assetId;

                            InventoryItemBase baseItem = profile.RootFolder.HasItem(wear.ItemID);
                            if (baseItem != null)
                            {
                                assetId = baseItem.assetID;
                                //temporary dictionary storage. This should be storing to a database
                               
                                if (m_avatarsAppearance.ContainsKey(clientView.AgentId))
                                {
                                    AvatarAppearance avatAppearance = m_avatarsAppearance[clientView.AgentId];
                                    avatAppearance.Wearables[wear.Type].AssetID = assetId;
                                    avatAppearance.Wearables[wear.Type].ItemID = wear.ItemID;
                                }
                            }

                        }
                    }
                }
            }
        }

        public static void GetDefaultAvatarAppearance(out AvatarWearable[] wearables, out byte[] visualParams)
        {
            visualParams = GetDefaultVisualParams();
            wearables = AvatarWearable.DefaultWearables;
        }

        private static byte[] GetDefaultVisualParams()
        {
            byte[] visualParams;
            visualParams = new byte[218];
            for (int i = 0; i < 218; i++)
            {
                visualParams[i] = 100;
            }
            return visualParams;
        }

      
    }
}