using Server.Accounting;
using Server.Commands.Generic;
using Server.Commands;
using Server.Items;
using Server.Misc;
using Server.Mobiles;
using Server.Network;
using Server.Regions;
using Server;
using System.Collections.Generic;
using System.Collections;
using System.IO;
using System;
using System.Reflection; // Added to access private variables inside BaseSpawner

namespace Server.Scripts.Commands 
{
    public class BuildWorld
    {
        public static void Initialize()
        {
            CommandSystem.Register("BuildWorld", AccessLevel.Counselor, new CommandEventHandler( BuildWorlds ));
        }

        [Usage("BuildWorld")]
        [Description("This cleans up the world and rebuilds it, leaving players intact.")]
        public static void BuildWorlds( CommandEventArgs e )
        {
            // ------- SURGICAL SPAWN SWEEP START -------
            e.Mobile.SendMessage( 38, "Sweeping the world for old spawners and orphaned tracking mobs... This may take a moment." );
            
            int spawnerCount = 0;
            int mobCount = 0;
            
            List<Item> spawnersToDelete = new List<Item>();
            List<Mobile> mobsToDelete = new List<Mobile>();
            
            foreach ( Item item in World.Items.Values )
            {
                // 1. Catch standard spawners
                if ( item is Spawner ) 
                {
                    spawnersToDelete.Add( item );
                }
                // 2. Catch custom BaseSpawners (SpawnAnimals, SpawnBirds, Spawn_A, etc.)
                else if ( item is BaseSpawner )
                {
                    spawnersToDelete.Add( item );
                    
                    // Use Reflection to grab the private "m_TrackedMobile" field
                    FieldInfo field = typeof(BaseSpawner).GetField( "m_TrackedMobile", BindingFlags.NonPublic | BindingFlags.Instance );
                    if ( field != null )
                    {
                        Mobile trackedMob = field.GetValue( item ) as Mobile;
                        
                        // If the spawner is tracking a living mob, mark it for deletion
                        if ( trackedMob != null && !trackedMob.Deleted )
                        {
                            mobsToDelete.Add( trackedMob );
                        }
                    }
                }
            }
            
            // Delete the thousands of orphaned animals/mobs first
            foreach ( Mobile m in mobsToDelete )
            {
                if ( !m.Deleted )
                {
                    m.Delete();
                    mobCount++;
                }
            }
            
            // Delete the hidden proxy spawners second
            foreach ( Item item in spawnersToDelete )
            {
                if ( !item.Deleted )
                {
                    item.Delete();
                    spawnerCount++;
                }
            }
            
            e.Mobile.SendMessage( 63, "Wipe Complete: {0} spawners and {1} tracked mobs deleted! Rebuilding...", spawnerCount, mobCount );
            // ------- SURGICAL SPAWN SWEEP END -------


            // Original Generation Commands
            Server.Commands.Decorate.Decorate_OnCommand( e );
            Server.Misc.GenTeleporters.GenTeleporters_OnCommand( e );
            Server.SpawnGenerator.Parse( e.Mobile, "towns.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "graveyards.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "land.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "dungeons.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "labyrinths.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "mazes.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "danger.map" );
            Server.SpawnGenerator.Parse( e.Mobile, "forts.map" );

            if ( Server.Misc.Settings.PopulateTowns() )
            { 
                Server.SpawnGenerator.Parse( e.Mobile, "citizens.map" ); 
            }

            Server.Regions.SpawnEntry.RespawnAllRegions_OnCommand( e );

            e.Mobile.SendMessage( 63, "The world has been rebuilt." );
        }
    }
}