using System;
using System.IO;
using System.Collections.Generic;
using Server;
using Server.Items;
using Server.Multis;
using Server.Commands;

namespace Server.Custom.StaticHousing
{
    public class GenStaticHouses
    {
        public static void Initialize()
        {
            CommandSystem.Register("GenStaticHouses", AccessLevel.Administrator, new CommandEventHandler(GenStaticHouses_OnCommand));
        }

        [Usage("GenStaticHouses")]
        [Description("Generates Static House signs from a configuration file.")]
        public static void GenStaticHouses_OnCommand(CommandEventArgs e)
        {
            string filePath = Path.Combine(Core.BaseDirectory, "Data", "Config", "statichouses.cfg");

            if (!File.Exists(filePath))
            {
                e.Mobile.SendMessage(33, "Error: Data/Config/statichouses.cfg not found!");
                return;
            }

            int count = 0;

            using (StreamReader ip = new StreamReader(filePath))
            {
                string line;
                while ((line = ip.ReadLine()) != null)
                {
                    line = line.Trim();
                    if (line.Length == 0 || line.StartsWith("#")) continue;

                    string[] split = line.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);

                    // We need at least 14 arguments now (10 base + 4 for the first area)
                    if (split.Length >= 14)
                    {
                        try
                        {
                            Map map = Map.Parse(split[0]);
                            Point3D signLoc = new Point3D(int.Parse(split[1]), int.Parse(split[2]), int.Parse(split[3]));
                            
                            int minZ = int.Parse(split[4]);
                            int maxZ = int.Parse(split[5]);
                            int price = int.Parse(split[6]);
                            int locks = int.Parse(split[7]);
                            int secures = int.Parse(split[8]);

                            int itemID = split[9].StartsWith("0x", StringComparison.OrdinalIgnoreCase) 
                                ? Convert.ToInt32(split[9], 16) 
                                : int.Parse(split[9]);

                            // Loop to capture ALL blocks appended to the end of the line!
                            List<Rectangle2D> areas = new List<Rectangle2D>();
                            for (int i = 10; i < split.Length; i += 4)
                            {
                                if (i + 3 < split.Length)
                                {
                                    Point2D start = new Point2D(int.Parse(split[i]), int.Parse(split[i + 1]));
                                    Point2D end = new Point2D(start.X + int.Parse(split[i + 2]), start.Y + int.Parse(split[i + 3]));
                                    areas.Add(new Rectangle2D(start, end));
                                }
                            }

                            if (map != null && !CheckForExistingHouse(map, signLoc) && areas.Count > 0)
                            {
                                StaticHouseSign sign = new StaticHouseSign(itemID, areas.ToArray(), minZ, maxZ, price, locks, secures);
                                sign.MoveToWorld(signLoc, map);
                                count++;
                            }
                        }
                        catch (Exception ex)
                        {
                            Console.WriteLine($"Error parsing statichouses.cfg line: {line}\n{ex.Message}");
                        }
                    }
                }
            }
            e.Mobile.SendMessage(68, $"Generation complete. {count} new Static House signs were spawned.");
        }

        private static bool CheckForExistingHouse(Map map, Point3D loc)
        {
            bool exists = false;
            IPooledEnumerable eable = map.GetItemsInRange(loc, 0);

            foreach (Item item in eable)
            {
                if (item is StaticHouseSign || item is HouseSign)
                {
                    exists = true;
                    break;
                }
            }

            eable.Free();
            return exists;
        }
    }
}