/*
 * 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.Collections;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Timers;
using log4net;
using Nini.Config;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Framework.Console;
using OpenSim.Framework.Statistics;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;

namespace OpenSim
{
    /// <summary>
    /// Interactive OpenSim region server
    /// </summary>
    public class OpenSim : OpenSimBase
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        protected string m_startupCommandsFile;
        protected string m_shutdownCommandsFile;
        protected bool m_gui = false;
        protected string m_consoleType = "local";
        protected uint m_consolePort = 0;

        private string m_timedScript = "disabled";
        private Timer m_scriptTimer;

        public OpenSim(IConfigSource configSource) : base(configSource)
        {
        }

        protected override void ReadExtraConfigSettings()
        {
            base.ReadExtraConfigSettings();

            IConfig startupConfig = m_config.Source.Configs["Startup"];
            IConfig networkConfig = m_config.Source.Configs["Network"];

            int stpMaxThreads = 15;

            if (startupConfig != null)
            {
                m_startupCommandsFile = startupConfig.GetString("startup_console_commands_file", "startup_commands.txt");
                m_shutdownCommandsFile = startupConfig.GetString("shutdown_console_commands_file", "shutdown_commands.txt");

                if (startupConfig.GetString("console", String.Empty) == String.Empty)
                    m_gui = startupConfig.GetBoolean("gui", false);
                else
                    m_consoleType= startupConfig.GetString("console", String.Empty);

                if (networkConfig != null)
                    m_consolePort = (uint)networkConfig.GetInt("console_port", 0);
                m_timedScript = startupConfig.GetString("timer_Script", "disabled");
                if (m_logFileAppender != null)
                {
                    if (m_logFileAppender is log4net.Appender.FileAppender)
                    {
                        log4net.Appender.FileAppender appender =
                                (log4net.Appender.FileAppender)m_logFileAppender;
                        string fileName = startupConfig.GetString("LogFile", String.Empty);
                        if (fileName != String.Empty)
                        {
                            appender.File = fileName;
                            appender.ActivateOptions();
                        }
                        m_log.InfoFormat("[LOGGING]: Logging started to file {0}", appender.File);
                    }
                }

                string asyncCallMethodStr = startupConfig.GetString("async_call_method", String.Empty);
                FireAndForgetMethod asyncCallMethod;
                if (!String.IsNullOrEmpty(asyncCallMethodStr) && Utils.EnumTryParse<FireAndForgetMethod>(asyncCallMethodStr, out asyncCallMethod))
                    Util.FireAndForgetMethod = asyncCallMethod;

                stpMaxThreads = startupConfig.GetInt("MaxPoolThreads", 15);
            }

            if (Util.FireAndForgetMethod == FireAndForgetMethod.SmartThreadPool)
                Util.InitThreadPool(stpMaxThreads);

            m_log.Info("[OPENSIM MAIN]: Using async_call_method " + Util.FireAndForgetMethod);
        }

        /// <summary>
        /// Performs initialisation of the scene, such as loading configuration from disk.
        /// </summary>
        protected override void StartupSpecific()
        {
            m_log.Info("====================================================================");
            m_log.Info("========================= STARTING OPENSIM =========================");
            m_log.Info("====================================================================");
            m_log.InfoFormat("[OPENSIM MAIN]: Running ");
            //m_log.InfoFormat("[OPENSIM MAIN]: GC Is Server GC: {0}", GCSettings.IsServerGC.ToString());
            // http://msdn.microsoft.com/en-us/library/bb384202.aspx
            //GCSettings.LatencyMode = GCLatencyMode.Batch;
            //m_log.InfoFormat("[OPENSIM MAIN]: GC Latency Mode: {0}", GCSettings.LatencyMode.ToString());

            if (m_gui) // Driven by external GUI
                m_console = new CommandConsole("Region");
            else
            {
                switch (m_consoleType)
                {
                case "basic":
                    m_console = new CommandConsole("Region");
                    break;
                case "rest":
                    m_console = new RemoteConsole("Region");
                    ((RemoteConsole)m_console).ReadConfig(m_config.Source);
                    break;
                default:
                    m_console = new LocalConsole("Region");
                    break;
                }
            }

            MainConsole.Instance = m_console;

            RegisterConsoleCommands();

            base.StartupSpecific();

            MainServer.Instance.AddStreamHandler(new OpenSim.SimStatusHandler());
            MainServer.Instance.AddStreamHandler(new OpenSim.XSimStatusHandler(this));
            if (userStatsURI != String.Empty)
                MainServer.Instance.AddStreamHandler(new OpenSim.UXSimStatusHandler(this));

            if (m_console is RemoteConsole)
            {
                if (m_consolePort == 0)
                {
                    ((RemoteConsole)m_console).SetServer(m_httpServer);
                }
                else
                {
                    ((RemoteConsole)m_console).SetServer(MainServer.GetHttpServer(m_consolePort));
                }
            }

            //Run Startup Commands
            if (String.IsNullOrEmpty(m_startupCommandsFile))
            {
                m_log.Info("[STARTUP]: No startup command script specified. Moving on...");
            }
            else
            {
                RunCommandScript(m_startupCommandsFile);
            }

            // Start timer script (run a script every xx seconds)
            if (m_timedScript != "disabled")
            {
                m_scriptTimer = new Timer();
                m_scriptTimer.Enabled = true;
                m_scriptTimer.Interval = 1200*1000;
                m_scriptTimer.Elapsed += RunAutoTimerScript;
            }

            // Hook up to the watchdog timer
            Watchdog.OnWatchdogTimeout += WatchdogTimeoutHandler;

            PrintFileToConsole("startuplogo.txt");

            // For now, start at the 'root' level by default
            if (m_sceneManager.Scenes.Count == 1) // If there is only one region, select it
                ChangeSelectedRegion("region",
                                     new string[] {"change", "region", m_sceneManager.Scenes[0].RegionInfo.RegionName});
            else
                ChangeSelectedRegion("region", new string[] {"change", "region", "root"});
        }

        /// <summary>
        /// Register standard set of region console commands
        /// </summary>
        private void RegisterConsoleCommands()
        {
            m_console.Commands.AddCommand("region", false, "clear assets",
                                          "clear assets",
                                          "Clear the asset cache", HandleClearAssets);

            m_console.Commands.AddCommand("region", false, "force update",
                                          "force update",
                                          "Force the update of all objects on clients",
                                          HandleForceUpdate);

            m_console.Commands.AddCommand("region", false, "debug packet",
                                          "debug packet <level>",
                                          "Turn on packet debugging",
                                          "If level > 255 then all incoming and outgoing packets are logged.\n"
                                          + "If level <= 255 then incoming AgentUpdate and outgoing SimStats and SimulatorViewerTimeMessage packets are not logged.\n"
                                          + "If level <= 200 then incoming RequestImage and outgoing ImagePacket, ImageData, LayerData and CoarseLocationUpdate packets are not logged.\n"
                                          + "If level <= 100 then incoming ViewerEffect and AgentAnimation and outgoing ViewerEffect and AvatarAnimation packets are not logged.\n"
                                          + "If level <= 0 then no packets are logged.",
                                          Debug);

            m_console.Commands.AddCommand("region", false, "debug scene",
                                          "debug scene <cripting> <collisions> <physics>",
                                          "Turn on scene debugging", Debug);

            m_console.Commands.AddCommand("region", false, "change region",
                                          "change region <region name>",
                                          "Change current console region", ChangeSelectedRegion);

            m_console.Commands.AddCommand("region", false, "save xml",
                                          "save xml",
                                          "Save a region's data in XML format", SaveXml);

            m_console.Commands.AddCommand("region", false, "save xml2",
                                          "save xml2",
                                          "Save a region's data in XML2 format", SaveXml2);

            m_console.Commands.AddCommand("region", false, "load xml",
                                          "load xml [-newIDs [<x> <y> <z>]]",
                                          "Load a region's data from XML format", LoadXml);

            m_console.Commands.AddCommand("region", false, "load xml2",
                                          "load xml2",
                                          "Load a region's data from XML2 format", LoadXml2);

            m_console.Commands.AddCommand("region", false, "save prims xml2",
                                          "save prims xml2 [<prim name> <file name>]",
                                          "Save named prim to XML2", SavePrimsXml2);

            m_console.Commands.AddCommand("region", false, "load oar",
                                          "load oar [--merge] [--skip-assets] [<OAR path>]",
                                          "Load a region's data from an OAR archive.",
                                          "--merge will merge the OAR with the existing scene." + Environment.NewLine
                                          + "--skip-assets will load the OAR but ignore the assets it contains." + Environment.NewLine
                                          + "The path can be either a filesystem location or a URI."
                                          + "  If this is not given then the command looks for an OAR named region.oar in the current directory.",
                                          LoadOar);

            m_console.Commands.AddCommand("region", false, "save oar",
                                          "save oar [--version=<version>] [<OAR path>]",
                                          "Save a region's data to an OAR archive.",
                                          "The OAR path must be a filesystem path."
                                          + "  If this is not given then the oar is saved to region.oar in the current directory." + Environment.NewLine
                                          + "--version=0 produces old version 0.3 OARs that are compatible with OpenSim 0.7.0.2 and earlier.  Current OAR version is 1.0.  This version of OpenSim can load any OAR later than version 0.3",
                                          SaveOar);

            m_console.Commands.AddCommand("region", false, "edit scale",
                                          "edit scale <name> <x> <y> <z>",
                                          "Change the scale of a named prim", HandleEditScale);

            m_console.Commands.AddCommand("region", false, "kick user",
                                          "kick user <first> <last> [message]",
                                          "Kick a user off the simulator", KickUserCommand);

            m_console.Commands.AddCommand("region", false, "show assets",
                                          "show assets",
                                          "Show asset data", HandleShow);

            m_console.Commands.AddCommand("region", false, "show users",
                                          "show users [full]",
                                          "Show user data", HandleShow);

            m_console.Commands.AddCommand("region", false, "show connections",
                                          "show connections",
                                          "Show connection data", HandleShow);

            m_console.Commands.AddCommand("region", false, "show users full",
                                          "show users full",
                                          String.Empty, HandleShow);

            m_console.Commands.AddCommand("region", false, "show modules",
                                          "show modules",
                                          "Show module data", HandleShow);

            m_console.Commands.AddCommand("region", false, "show regions",
                                          "show regions",
                                          "Show region data", HandleShow);

            m_console.Commands.AddCommand("region", false, "show queues",
                                          "show queues",
                                          "Show queue data", HandleShow);
            m_console.Commands.AddCommand("region", false, "show ratings",
                                          "show ratings",
                                          "Show rating data", HandleShow);

            m_console.Commands.AddCommand("region", false, "backup",
                                          "backup",
                                          "Persist objects to the database now", RunCommand);

            m_console.Commands.AddCommand("region", false, "create region",
                                          "create region [\"region name\"] <region_file.ini>",
                                          "Create a new region.",
                                          "The settings for \"region name\" are read from <region_file.ini>. Paths specified with <region_file.ini> are relative to your Regions directory, unless an absolute path is given."
                                          + " If \"region name\" does not exist in <region_file.ini>, it will be added." + Environment.NewLine
                                          + "Without \"region name\", the first region found in <region_file.ini> will be created." + Environment.NewLine
                                          + "If <region_file.ini> does not exist, it will be created.",
                                          HandleCreateRegion);

            m_console.Commands.AddCommand("region", false, "restart",
                                          "restart",
                                          "Restart all sims in this instance", RunCommand);

            m_console.Commands.AddCommand("region", false, "config set",
                                          "config set <section> <field> <value>",
                                          "Set a config option", HandleConfig);

            m_console.Commands.AddCommand("region", false, "config get",
                                          "config get <section> <field>",
                                          "Read a config option", HandleConfig);

            m_console.Commands.AddCommand("region", false, "config save",
                                          "config save",
                                          "Save current configuration", HandleConfig);

            m_console.Commands.AddCommand("region", false, "command-script",
                                          "command-script <script>",
                                          "Run a command script from file", RunCommand);

            m_console.Commands.AddCommand("region", false, "remove-region",
                                          "remove-region <name>",
                                          "Remove a region from this simulator", RunCommand);

            m_console.Commands.AddCommand("region", false, "delete-region",
                                          "delete-region <name>",
                                          "Delete a region from disk", RunCommand);

            m_console.Commands.AddCommand("region", false, "modules list",
                                          "modules list",
                                          "List modules", HandleModules);

            m_console.Commands.AddCommand("region", false, "modules load",
                                          "modules load <name>",
                                          "Load a module", HandleModules);

            m_console.Commands.AddCommand("region", false, "modules unload",
                                          "modules unload <name>",
                                          "Unload a module", HandleModules);

            m_console.Commands.AddCommand("region", false, "Add-InventoryHost",
                                          "Add-InventoryHost <host>",
                                          String.Empty, RunCommand);

            m_console.Commands.AddCommand("region", false, "kill uuid",
                                          "kill uuid <UUID>",
                                          "Kill an object by UUID", KillUUID);

        }

        public override void ShutdownSpecific()
        {
            if (m_shutdownCommandsFile != String.Empty)
            {
                RunCommandScript(m_shutdownCommandsFile);
            }
            base.ShutdownSpecific();
        }

        /// <summary>
        /// Timer to run a specific text file as console commands.  Configured in in the main ini file
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void RunAutoTimerScript(object sender, EventArgs e)
        {
            if (m_timedScript != "disabled")
            {
                RunCommandScript(m_timedScript);
            }
        }

        private void WatchdogTimeoutHandler(System.Threading.Thread thread, int lastTick)
        {
            int now = Environment.TickCount & Int32.MaxValue;

            m_log.ErrorFormat("[WATCHDOG]: Timeout detected for thread \"{0}\". ThreadState={1}. Last tick was {2}ms ago",
                thread.Name, thread.ThreadState, now - lastTick);
        }

        #region Console Commands

        /// <summary>
        /// Kicks users off the region
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmdparams">name of avatar to kick</param>
        private void KickUserCommand(string module, string[] cmdparams)
        {
            if (cmdparams.Length < 4)
                return;

            string alert = null;
            if (cmdparams.Length > 4)
                alert = String.Format("\n{0}\n", String.Join(" ", cmdparams, 4, cmdparams.Length - 4));

            IList agents = m_sceneManager.GetCurrentSceneAvatars();

            foreach (ScenePresence presence in agents)
            {
                RegionInfo regionInfo = presence.Scene.RegionInfo;

                if (presence.Firstname.ToLower().Contains(cmdparams[2].ToLower()) &&
                    presence.Lastname.ToLower().Contains(cmdparams[3].ToLower()))
                {
                    MainConsole.Instance.Output(
                        String.Format(
                            "Kicking user: {0,-16} {1,-16} {2,-37} in region: {3,-16}",
                            presence.Firstname, presence.Lastname, presence.UUID, regionInfo.RegionName));

                    // kick client...
                    if (alert != null)
                        presence.ControllingClient.Kick(alert);
                    else
                        presence.ControllingClient.Kick("\nThe OpenSim manager kicked you out.\n");

                    // ...and close on our side
                    presence.Scene.IncomingCloseAgent(presence.UUID);
                }
            }
            MainConsole.Instance.Output("");
        }

        /// <summary>
        /// Run an optional startup list of commands
        /// </summary>
        /// <param name="fileName"></param>
        private void RunCommandScript(string fileName)
        {
            if (File.Exists(fileName))
            {
                m_log.Info("[COMMANDFILE]: Running " + fileName);

                using (StreamReader readFile = File.OpenText(fileName))
                {
                    string currentCommand;
                    while ((currentCommand = readFile.ReadLine()) != null)
                    {
                        if (currentCommand != String.Empty)
                        {
                            m_log.Info("[COMMANDFILE]: Running '" + currentCommand + "'");
                            m_console.RunCommand(currentCommand);
                        }
                    }
                }
            }
        }

        /// <summary>
        /// Opens a file and uses it as input to the console command parser.
        /// </summary>
        /// <param name="fileName">name of file to use as input to the console</param>
        private static void PrintFileToConsole(string fileName)
        {
            if (File.Exists(fileName))
            {
                StreamReader readFile = File.OpenText(fileName);
                string currentLine;
                while ((currentLine = readFile.ReadLine()) != null)
                {
                    m_log.Info("[!]" + currentLine);
                }
            }
        }

        private void HandleClearAssets(string module, string[] args)
        {
            MainConsole.Instance.Output("Not implemented.");
        }

        /// <summary>
        /// Force resending of all updates to all clients in active region(s)
        /// </summary>
        /// <param name="module"></param>
        /// <param name="args"></param>
        private void HandleForceUpdate(string module, string[] args)
        {
            MainConsole.Instance.Output("Updating all clients");
            m_sceneManager.ForceCurrentSceneClientUpdate();
        }

        /// <summary>
        /// Edits the scale of a primative with the name specified
        /// </summary>
        /// <param name="module"></param>
        /// <param name="args">0,1, name, x, y, z</param>
        private void HandleEditScale(string module, string[] args)
        {
            if (args.Length == 6)
            {
                m_sceneManager.HandleEditCommandOnCurrentScene(args);
            }
            else
            {
                MainConsole.Instance.Output("Argument error: edit scale <prim name> <x> <y> <z>");
            }
        }

        /// <summary>
        /// Creates a new region based on the parameters specified.   This will ask the user questions on the console
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmd">0,1,region name, region ini or XML file</param>
        private void HandleCreateRegion(string module, string[] cmd)
        {
            string regionName = string.Empty;
            string regionFile = string.Empty;
            if (cmd.Length == 3)
            {
                regionFile = cmd[2];
            }
            else if (cmd.Length > 3)
            {
                regionName = cmd[2];
                regionFile = cmd[3];
            }
            string extension = Path.GetExtension(regionFile).ToLower();
            bool isXml = extension.Equals(".xml");
            bool isIni = extension.Equals(".ini");
            if (!isXml && !isIni)
            {
                MainConsole.Instance.Output("Usage: create region [\"region name\"] <region_file.ini>");
                return;
            }
            if (!Path.IsPathRooted(regionFile))
            {
                string regionsDir = ConfigSource.Source.Configs["Startup"].GetString("regionload_regionsdir", "Regions").Trim();
                regionFile = Path.Combine(regionsDir, regionFile);
            }

            RegionInfo regInfo;
            if (isXml)
            {
                regInfo = new RegionInfo(regionName, regionFile, false, ConfigSource.Source);
            }
            else
            {
                regInfo = new RegionInfo(regionName, regionFile, false, ConfigSource.Source, regionName);
            }

            IScene scene;
            PopulateRegionEstateInfo(regInfo);
            CreateRegion(regInfo, true, out scene);
            regInfo.EstateSettings.Save();
        }

        /// <summary>
        /// Change and load configuration file data.
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmd"></param>
        private void HandleConfig(string module, string[] cmd)
        {
            List<string> args = new List<string>(cmd);
            args.RemoveAt(0);
            string[] cmdparams = args.ToArray();
            string n = "CONFIG";

            if (cmdparams.Length > 0)
            {
                switch (cmdparams[0].ToLower())
                {
                    case "set":
                        if (cmdparams.Length < 4)
                        {
                            MainConsole.Instance.Output(String.Format("SYNTAX: {0} SET SECTION KEY VALUE",n));
                            MainConsole.Instance.Output(String.Format("EXAMPLE: {0} SET ScriptEngine.DotNetEngine NumberOfScriptThreads 5",n));
                        }
                        else
                        {
                            IConfig c;
                            IConfigSource source = new IniConfigSource();
                            c = source.AddConfig(cmdparams[1]);
                            if (c != null)
                            {
                                string _value = String.Join(" ", cmdparams, 3, cmdparams.Length - 3);
                                c.Set(cmdparams[2], _value);
                                m_config.Source.Merge(source);

                                MainConsole.Instance.Output(String.Format("{0} {0} {1} {2} {3}",n,cmdparams[1],cmdparams[2],_value));
                            }
                        }
                        break;

                    case "get":
                        if (cmdparams.Length < 3)
                        {
                            MainConsole.Instance.Output(String.Format("SYNTAX: {0} GET SECTION KEY",n));
                            MainConsole.Instance.Output(String.Format("EXAMPLE: {0} GET ScriptEngine.DotNetEngine NumberOfScriptThreads",n));
                        }
                        else
                        {
                            IConfig c = m_config.Source.Configs[cmdparams[1]];
                            if (c == null)
                            {
                                MainConsole.Instance.Output(String.Format("Section \"{0}\" does not exist.",cmdparams[1]));
                                break;
                            }
                            else
                            {
                                MainConsole.Instance.Output(String.Format("{0} GET {1} {2} : {3}",n,cmdparams[1],cmdparams[2],
                                                     c.GetString(cmdparams[2])));
                            }
                        }

                        break;

                    case "save":
                        if (cmdparams.Length < 2)
                        {
                            MainConsole.Instance.Output("SYNTAX: " + n + " SAVE FILE");
                            return;
                        }

                        if (Application.iniFilePath == cmdparams[1])
                        {
                            MainConsole.Instance.Output("FILE can not be " + Application.iniFilePath);
                            return;
                        }

                        MainConsole.Instance.Output("Saving configuration file: " + cmdparams[1]);
                        m_config.Save(cmdparams[1]);
                        break;
                }
            }
        }

        /// <summary>
        /// Load, Unload, and list Region modules in use
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmd"></param>
        private void HandleModules(string module, string[] cmd)
        {
            List<string> args = new List<string>(cmd);
            args.RemoveAt(0);
            string[] cmdparams = args.ToArray();

            if (cmdparams.Length > 0)
            {
                switch (cmdparams[0].ToLower())
                {
                    case "list":
                        foreach (IRegionModule irm in m_moduleLoader.GetLoadedSharedModules)
                        {
                            MainConsole.Instance.Output(String.Format("Shared region module: {0}", irm.Name));
                        }
                        break;
                    case "unload":
                        if (cmdparams.Length > 1)
                        {
                            foreach (IRegionModule rm in new ArrayList(m_moduleLoader.GetLoadedSharedModules))
                            {
                                if (rm.Name.ToLower() == cmdparams[1].ToLower())
                                {
                                    MainConsole.Instance.Output(String.Format("Unloading module: {0}", rm.Name));
                                    m_moduleLoader.UnloadModule(rm);
                                }
                            }
                        }
                        break;
                    case "load":
                        if (cmdparams.Length > 1)
                        {
                            foreach (Scene s in new ArrayList(m_sceneManager.Scenes))
                            {
                                MainConsole.Instance.Output(String.Format("Loading module: {0}", cmdparams[1]));
                                m_moduleLoader.LoadRegionModules(cmdparams[1], s);
                            }
                        }
                        break;
                }
            }
        }

        /// <summary>
        /// Runs commands issued by the server console from the operator
        /// </summary>
        /// <param name="command">The first argument of the parameter (the command)</param>
        /// <param name="cmdparams">Additional arguments passed to the command</param>
        public void RunCommand(string module, string[] cmdparams)
        {
            List<string> args = new List<string>(cmdparams);
            if (args.Count < 1)
                return;

            string command = args[0];
            args.RemoveAt(0);

            cmdparams = args.ToArray();

            switch (command)
            {
                case "command-script":
                    if (cmdparams.Length > 0)
                    {
                        RunCommandScript(cmdparams[0]);
                    }
                    break;

                case "backup":
                    m_sceneManager.BackupCurrentScene();
                    break;

                case "remove-region":
                    string regRemoveName = CombineParams(cmdparams, 0);

                    Scene removeScene;
                    if (m_sceneManager.TryGetScene(regRemoveName, out removeScene))
                        RemoveRegion(removeScene, false);
                    else
                        MainConsole.Instance.Output("no region with that name");
                    break;

                case "delete-region":
                    string regDeleteName = CombineParams(cmdparams, 0);

                    Scene killScene;
                    if (m_sceneManager.TryGetScene(regDeleteName, out killScene))
                        RemoveRegion(killScene, true);
                    else
                        MainConsole.Instance.Output("no region with that name");
                    break;

                case "restart":
                    m_sceneManager.RestartCurrentScene();
                    break;

                case "Add-InventoryHost":
                    if (cmdparams.Length > 0)
                    {
                        MainConsole.Instance.Output("Not implemented.");
                    }
                    break;

            }
        }

        /// <summary>
        /// Change the currently selected region.  The selected region is that operated upon by single region commands.
        /// </summary>
        /// <param name="cmdParams"></param>
        protected void ChangeSelectedRegion(string module, string[] cmdparams)
        {
            if (cmdparams.Length > 2)
            {
                string newRegionName = CombineParams(cmdparams, 2);

                if (!m_sceneManager.TrySetCurrentScene(newRegionName))
                    MainConsole.Instance.Output(String.Format("Couldn't select region {0}", newRegionName));
            }
            else
            {
                MainConsole.Instance.Output("Usage: change region <region name>");
            }

            string regionName = (m_sceneManager.CurrentScene == null ? "root" : m_sceneManager.CurrentScene.RegionInfo.RegionName);
            MainConsole.Instance.Output(String.Format("Currently selected region is {0}", regionName));
            m_console.DefaultPrompt = String.Format("Region ({0}) ", regionName);
            m_console.ConsoleScene = m_sceneManager.CurrentScene;
        }

        /// <summary>
        /// Turn on some debugging values for OpenSim.
        /// </summary>
        /// <param name="args"></param>
        protected void Debug(string module, string[] args)
        {
            if (args.Length == 1)
                return;

            switch (args[1])
            {
                case "packet":
                    if (args.Length > 2)
                    {
                        int newDebug;
                        if (int.TryParse(args[2], out newDebug))
                        {
                            m_sceneManager.SetDebugPacketLevelOnCurrentScene(newDebug);
                        }
                        else
                        {
                            MainConsole.Instance.Output("packet debug should be 0..255");
                        }
                        MainConsole.Instance.Output(String.Format("New packet debug: {0}", newDebug));
                    }

                    break;

                case "scene":
                    if (args.Length == 5)
                    {
                        if (m_sceneManager.CurrentScene == null)
                        {
                            MainConsole.Instance.Output("Please use 'change region <regioname>' first");
                        }
                        else
                        {
                            bool scriptingOn = !Convert.ToBoolean(args[2]);
                            bool collisionsOn = !Convert.ToBoolean(args[3]);
                            bool physicsOn = !Convert.ToBoolean(args[4]);
                            m_sceneManager.CurrentScene.SetSceneCoreDebug(scriptingOn, collisionsOn, physicsOn);

                            MainConsole.Instance.Output(
                                String.Format(
                                    "Set debug scene scripting = {0}, collisions = {1}, physics = {2}",
                                    !scriptingOn, !collisionsOn, !physicsOn));
                        }
                    }
                    else
                    {
                        MainConsole.Instance.Output("debug scene <scripting> <collisions> <physics> (where inside <> is true/false)");
                    }

                    break;

                default:
                    MainConsole.Instance.Output("Unknown debug");
                    break;
            }
        }

        // see BaseOpenSimServer
        /// <summary>
        /// Many commands list objects for debugging.  Some of the types are listed  here
        /// </summary>
        /// <param name="mod"></param>
        /// <param name="cmd"></param>
        public override void HandleShow(string mod, string[] cmd)
        {
            base.HandleShow(mod, cmd);

            List<string> args = new List<string>(cmd);
            args.RemoveAt(0);
            string[] showParams = args.ToArray();

            switch (showParams[0])
            {
                case "assets":
                    MainConsole.Instance.Output("Not implemented.");
                    break;

                case "users":
                    IList agents;
                    if (showParams.Length > 1 && showParams[1] == "full")
                    {
                        agents = m_sceneManager.GetCurrentScenePresences();
                    }
                    else
                    {
                        agents = m_sceneManager.GetCurrentSceneAvatars();
                    }

                    MainConsole.Instance.Output(String.Format("\nAgents connected: {0}\n", agents.Count));

                    MainConsole.Instance.Output(
                        String.Format("{0,-16} {1,-16} {2,-37} {3,-11} {4,-16} {5,-30}", "Firstname", "Lastname",
                                      "Agent ID", "Root/Child", "Region", "Position"));

                    foreach (ScenePresence presence in agents)
                    {
                        RegionInfo regionInfo = presence.Scene.RegionInfo;
                        string regionName;

                        if (regionInfo == null)
                        {
                            regionName = "Unresolvable";
                        }
                        else
                        {
                            regionName = regionInfo.RegionName;
                        }

                        MainConsole.Instance.Output(
                            String.Format(
                                "{0,-16} {1,-16} {2,-37} {3,-11} {4,-16} {5,-30}",
                                presence.Firstname,
                                presence.Lastname,
                                presence.UUID,
                                presence.IsChildAgent ? "Child" : "Root",
                                regionName,
                                presence.AbsolutePosition.ToString()));
                    }

                    MainConsole.Instance.Output(String.Empty);
                    break;

                case "connections":
                    System.Text.StringBuilder connections = new System.Text.StringBuilder("Connections:\n");
                    m_sceneManager.ForEachScene(
                        delegate(Scene scene)
                        {
                            scene.ForEachClient(
                                delegate(IClientAPI client)
                                {
                                    connections.AppendFormat("{0}: {1} ({2}) from {3} on circuit {4}\n",
                                        scene.RegionInfo.RegionName, client.Name, client.AgentId, client.RemoteEndPoint, client.CircuitCode);
                                }
                            );
                        }
                    );

                    MainConsole.Instance.Output(connections.ToString());
                    break;

                case "modules":
                    MainConsole.Instance.Output("The currently loaded shared modules are:");
                    foreach (IRegionModule module in m_moduleLoader.GetLoadedSharedModules)
                    {
                        MainConsole.Instance.Output("Shared Module: " + module.Name);
                    }

                    MainConsole.Instance.Output("");
                    break;

                case "regions":
                    m_sceneManager.ForEachScene(
                        delegate(Scene scene)
                            {
                                MainConsole.Instance.Output(String.Format(
                                           "Region Name: {0}, Region XLoc: {1}, Region YLoc: {2}, Region Port: {3}",
                                           scene.RegionInfo.RegionName,
                                           scene.RegionInfo.RegionLocX,
                                           scene.RegionInfo.RegionLocY,
                                           scene.RegionInfo.InternalEndPoint.Port));
                            });
                    break;

                case "queues":
                    Notice(GetQueuesReport());
                    break;

                case "ratings":
                    m_sceneManager.ForEachScene(
                    delegate(Scene scene)
                    {
                        string rating = "";
                        if (scene.RegionInfo.RegionSettings.Maturity == 1)
                        {
                            rating = "MATURE";
                        }
                        else if (scene.RegionInfo.RegionSettings.Maturity == 2)
                        {
                            rating = "ADULT";
                        }
                        else
                        {
                            rating = "PG";
                        }
                        MainConsole.Instance.Output(String.Format(
                                   "Region Name: {0}, Region Rating {1}",
                                   scene.RegionInfo.RegionName,
                                   rating));
                    });
                    break;
            }
        }

        /// <summary>
        /// print UDP Queue data for each client
        /// </summary>
        /// <returns></returns>
        private string GetQueuesReport()
        {
            string report = String.Empty;

            m_sceneManager.ForEachScene(delegate(Scene scene)
                                            {
                                                scene.ForEachClient(delegate(IClientAPI client)
                                                                        {
                                                                            if (client is IStatsCollector)
                                                                            {
                                                                                report = report + client.FirstName +
                                                                                         " " + client.LastName;

                                                                                IStatsCollector stats =
                                                                                    (IStatsCollector) client;

                                                                                report = report + string.Format("{0,7} {1,7} {2,7} {3,7} {4,7} {5,7} {6,7} {7,7} {8,7} {9,7}\n",
                                                                                             "Send",
                                                                                             "In",
                                                                                             "Out",
                                                                                             "Resend",
                                                                                             "Land",
                                                                                             "Wind",
                                                                                             "Cloud",
                                                                                             "Task",
                                                                                             "Texture",
                                                                                             "Asset");
                                                                                report = report + stats.Report() +
                                                                                         "\n";
                                                                            }
                                                                        });
                                            });

            return report;
        }

        /// <summary>
        /// Use XML2 format to serialize data to a file
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmdparams"></param>
        protected void SavePrimsXml2(string module, string[] cmdparams)
        {
            if (cmdparams.Length > 5)
            {
                m_sceneManager.SaveNamedPrimsToXml2(cmdparams[3], cmdparams[4]);
            }
            else
            {
                m_sceneManager.SaveNamedPrimsToXml2("Primitive", DEFAULT_PRIM_BACKUP_FILENAME);
            }
        }

        /// <summary>
        /// Use XML format to serialize data to a file
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmdparams"></param>
        protected void SaveXml(string module, string[] cmdparams)
        {
            MainConsole.Instance.Output("PLEASE NOTE, save-xml is DEPRECATED and may be REMOVED soon.  If you are using this and there is some reason you can't use save-xml2, please file a mantis detailing the reason.");

            if (cmdparams.Length > 0)
            {
                m_sceneManager.SaveCurrentSceneToXml(cmdparams[2]);
            }
            else
            {
                m_sceneManager.SaveCurrentSceneToXml(DEFAULT_PRIM_BACKUP_FILENAME);
            }
        }

        /// <summary>
        /// Loads data and region objects from XML format.
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmdparams"></param>
        protected void LoadXml(string module, string[] cmdparams)
        {
            MainConsole.Instance.Output("PLEASE NOTE, load-xml is DEPRECATED and may be REMOVED soon.  If you are using this and there is some reason you can't use load-xml2, please file a mantis detailing the reason.");

            Vector3 loadOffset = new Vector3(0, 0, 0);
            if (cmdparams.Length > 2)
            {
                bool generateNewIDS = false;
                if (cmdparams.Length > 3)
                {
                    if (cmdparams[3] == "-newUID")
                    {
                        generateNewIDS = true;
                    }
                    if (cmdparams.Length > 4)
                    {
                        loadOffset.X = (float)Convert.ToDecimal(cmdparams[4], Culture.NumberFormatInfo);
                        if (cmdparams.Length > 5)
                        {
                            loadOffset.Y = (float)Convert.ToDecimal(cmdparams[5], Culture.NumberFormatInfo);
                        }
                        if (cmdparams.Length > 6)
                        {
                            loadOffset.Z = (float)Convert.ToDecimal(cmdparams[6], Culture.NumberFormatInfo);
                        }
                        MainConsole.Instance.Output(String.Format("loadOffsets <X,Y,Z> = <{0},{1},{2}>",loadOffset.X,loadOffset.Y,loadOffset.Z));
                    }
                }
                m_sceneManager.LoadCurrentSceneFromXml(cmdparams[0], generateNewIDS, loadOffset);
            }
            else
            {
                try
                {
                    m_sceneManager.LoadCurrentSceneFromXml(DEFAULT_PRIM_BACKUP_FILENAME, false, loadOffset);
                }
                catch (FileNotFoundException)
                {
                    MainConsole.Instance.Output("Default xml not found. Usage: load-xml <filename>");
                }
            }
        }
        /// <summary>
        /// Serialize region data to XML2Format
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmdparams"></param>
        protected void SaveXml2(string module, string[] cmdparams)
        {
            if (cmdparams.Length > 2)
            {
                m_sceneManager.SaveCurrentSceneToXml2(cmdparams[2]);
            }
            else
            {
                m_sceneManager.SaveCurrentSceneToXml2(DEFAULT_PRIM_BACKUP_FILENAME);
            }
        }

        /// <summary>
        /// Load region data from Xml2Format
        /// </summary>
        /// <param name="module"></param>
        /// <param name="cmdparams"></param>
        protected void LoadXml2(string module, string[] cmdparams)
        {
            if (cmdparams.Length > 2)
            {
                try
                {
                    m_sceneManager.LoadCurrentSceneFromXml2(cmdparams[2]);
                }
                catch (FileNotFoundException)
                {
                    MainConsole.Instance.Output("Specified xml not found. Usage: load xml2 <filename>");
                }
            }
            else
            {
                try
                {
                    m_sceneManager.LoadCurrentSceneFromXml2(DEFAULT_PRIM_BACKUP_FILENAME);
                }
                catch (FileNotFoundException)
                {
                    MainConsole.Instance.Output("Default xml not found. Usage: load xml2 <filename>");
                }
            }
        }

        /// <summary>
        /// Load a whole region from an opensimulator archive.
        /// </summary>
        /// <param name="cmdparams"></param>
        protected void LoadOar(string module, string[] cmdparams)
        {
            try
            {
                m_sceneManager.LoadArchiveToCurrentScene(cmdparams);
            }
            catch (Exception e)
            {
                MainConsole.Instance.Output(e.Message);
            }
        }

        /// <summary>
        /// Save a region to a file, including all the assets needed to restore it.
        /// </summary>
        /// <param name="cmdparams"></param>
        protected void SaveOar(string module, string[] cmdparams)
        {
            m_sceneManager.SaveCurrentSceneToArchive(cmdparams);
        }

        private static string CombineParams(string[] commandParams, int pos)
        {
            string result = String.Empty;
            for (int i = pos; i < commandParams.Length; i++)
            {
                result += commandParams[i] + " ";
            }
            result = result.TrimEnd(' ');
            return result;
        }

        /// <summary>
        /// Kill an object given its UUID.
        /// </summary>
        /// <param name="cmdparams"></param>
        protected void KillUUID(string module, string[] cmdparams)
        {
            if (cmdparams.Length > 2)
            {
                UUID id = UUID.Zero;
                SceneObjectGroup grp = null;
                Scene sc = null;

                if (!UUID.TryParse(cmdparams[2], out id))
                {
                    MainConsole.Instance.Output("[KillUUID]: Error bad UUID format!");
                    return;
                }

                m_sceneManager.ForEachScene(
                    delegate(Scene scene)
                    {
                        SceneObjectPart part = scene.GetSceneObjectPart(id);
                        if (part == null)
                            return;

                        grp = part.ParentGroup;
                        sc = scene;
                    });

                if (grp == null)
                {
                    MainConsole.Instance.Output(String.Format("[KillUUID]: Given UUID {0} not found!", id));
                }
                else
                {
                    MainConsole.Instance.Output(String.Format("[KillUUID]: Found UUID {0} in scene {1}", id, sc.RegionInfo.RegionName));
                    try
                    {
                        sc.DeleteSceneObject(grp, false);
                    }
                    catch (Exception e)
                    {
                        m_log.ErrorFormat("[KillUUID]: Error while removing objects from scene: " + e);
                    }
                }
            }
            else
            {
                MainConsole.Instance.Output("[KillUUID]: Usage: kill uuid <UUID>");
            }
        }

        #endregion
    }
}