using System;
using System.IO;
using System.Collections.Generic;
using Server;
using Server.Items;
using Server.Custom.InnRooms;

namespace Server.Custom.InnRooms
{
    public enum InnRoomSize { Small, Medium, Large }

    // This object holds the coordinates for a single room from your config file
    public class RoomDefinition
    {
        public InnRoomSize Size;
        public Map RoomMap;
        public Point3D Location;
    }

    public class InnRoomManager
    {
        // The master list of all rooms loaded from the config file
        public static List<RoomDefinition> Rooms = new List<RoomDefinition>();

        // This runs automatically when the server starts
        public static void Initialize()
        {
            LoadRooms();
        }

        public static int GetCost(InnRoomSize size)
        {
            switch (size)
            {
                case InnRoomSize.Small: return 5000;
                case InnRoomSize.Medium: return 10000;
                case InnRoomSize.Large: return 20000;
                default: return 5000;
            }
        }

        public static void LoadRooms()
        {
            Rooms.Clear();
            string filePath = Path.Combine(Core.BaseDirectory, "Data", "Config", "innrooms.cfg");

            if (!File.Exists(filePath))
            {
                Console.WriteLine("InnRoomManager: No innrooms.cfg found!");
                return;
            }

            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);

                    // Expected Format: Size Map X Y Z
                    // Example: Small Felucca 6000 6000 0
                    if (split.Length >= 5)
                    {
                        try
                        {
                            RoomDefinition def = new RoomDefinition();
                            def.Size = (InnRoomSize)Enum.Parse(typeof(InnRoomSize), split[0], true);
                            def.RoomMap = Map.Parse(split[1]);
                            def.Location = new Point3D(int.Parse(split[2]), int.Parse(split[3]), int.Parse(split[4]));

                            Rooms.Add(def);
                        }
                        catch (Exception ex)
                        {
                            Console.WriteLine($"InnRoomManager Error parsing line: {line}\n{ex.Message}");
                        }
                    }
                }
            }
            Console.WriteLine($"InnRoomManager: Loaded {Rooms.Count} total rooms from config.");
        }

        // Checks all active rentals on the server to see which list indexes are currently taken
        public static List<int> GetOccupiedIndexes()
        {
            List<int> occupied = new List<int>();

            foreach (Item item in World.Items.Values)
            {
                if (item is InnRoomHouse)
                {
                    InnRoomHouse house = (InnRoomHouse)item;
                    occupied.Add(house.RoomIndex);
                }
            }
            return occupied;
        }

        // Counts how many rooms of a specific size are NOT currently rented
        public static int GetAvailableCount(InnRoomSize size)
        {
            List<int> occupied = GetOccupiedIndexes();
            int count = 0;

            for (int i = 0; i < Rooms.Count; i++)
            {
                if (Rooms[i].Size == size && !occupied.Contains(i))
                {
                    count++;
                }
            }
            return count;
        }

        // Finds the exact list index of the first available room of the requested size
        public static int FindFirstOpenSlot(InnRoomSize size)
        {
            List<int> occupied = GetOccupiedIndexes();

            for (int i = 0; i < Rooms.Count; i++)
            {
                if (Rooms[i].Size == size && !occupied.Contains(i))
                {
                    return i; // Returns the exact index in the Rooms list
                }
            }
            return -1; // -1 means sold out
        }
    }
}