// ContentManagementModule.cs 
// User: bongiojp



using System;
using System.Collections.Generic;
using libsecondlife;
using Nini.Config;
using OpenSim;
using OpenSim.Framework;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;
using log4net;
using OpenSim.Region.Physics.Manager;
using Axiom.Math;
using System.Threading;
	
namespace OpenSim.Region.Environment.Modules.ContentManagement
{
	public class ContentManagementModule : IRegionModule
	{
		private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
		CMController m_control = null;
		CMModel m_model = null;
		CMView m_view = null;
		bool initialised = false;
		bool m_posted = false;
		bool m_enabled = true;
		
		public void Initialise(Scene scene, IConfigSource source)
        {
			string databaseDir = "./";
			string database = "FilesyStemDatabase";
			int channel = 345;
			try
			{
				if (!source.Configs["CMS"].GetBoolean("Enabled", false))
					m_enabled = false;
				
				databaseDir = source.Configs["CMS"].GetString("Directory", databaseDir);
				database = source.Configs["CMS"].GetString("Database", database);
				channel = source.Configs["CMS"].GetInt("Channel", channel);
				if (database != "FileSystemDatabase" && database != "GitDatabase")
				{
					m_log.ErrorFormat("[Content Management]: The Database attribute must be defined as either FileSystemDatabase or GitDatabase");
					m_enabled = false;
				}
			}
			catch (Exception e)
			{
				m_log.ErrorFormat("[Content Management]: Exception thrown while reading parameters from configuration file. Message: " + e);
				m_enabled = false;
			}

			if (!m_enabled)
			{
				m_log.Info("[Content Management]: Content Management System is not Enabled.");
				return;
			}
			
			lock(this)
			{
				if (!initialised) //only init once
				{
					m_view = new CMView();
					m_model = new CMModel();
					m_control = new CMController(m_model, m_view, scene, channel);
					m_model.Initialise(database);
					m_view.Initialise(m_model);
					
					initialised = true;
					m_model.InitialiseDatabase(scene, databaseDir);
				}
				else
				{
					m_model.InitialiseDatabase(scene, databaseDir);
					m_control.RegisterNewRegion(scene);
				}
			}
		}
		
        public void PostInitialise()
        {
			if (! m_enabled)
				return;
			
			lock(this)
			{
				if (!m_posted) //only post once
				{
					m_model.PostInitialise();
					m_posted = true;
				}
			}
		}
		
		public void Close()
        {}

        public string Name
        {
            get { return "ContentManagementModule"; }
        }

        public bool IsSharedModule
        {
            get { return true; }
        }
	}
}