using System;
using System.Collections.Generic;
using UnityEngine;
using DungeonMapGenerator;
using Unity.VisualScripting;


namespace DungeonGenerator
{
    public class DungeonMapLoader : MonoBehaviour
    {
        [SerializeField] private string pathToDungeonMap;
        [SerializeField] private GameObject roomsParent;
        [SerializeField] private GameObject monsterRoomPrefab;
        [SerializeField] private GameObject bossRoomPrefab;
        [SerializeField] private GameObject normalRoomPrefab;
        
        private Dictionary<int, GameObject> roomIdToGameObject = new Dictionary<int, GameObject>();

        private void Start()
        {
            DungeonMap map = DungeonMapSerializer.DeserializeFromFile(pathToDungeonMap);

            GameObject bossRoomGO = Instantiate(bossRoomPrefab, 
                ConvertToUnityPosition(map.GetBossRoom().GetCenterOfRoom(), map.Width, map.Height),
                Quaternion.identity,
                roomsParent.transform);
            roomIdToGameObject[map.GetBossRoom().Id] = bossRoomGO;
            
            foreach (var monsterRoom in map.GetMonsterRooms())
            {
                GameObject monsterRoomGO = Instantiate(
                    monsterRoomPrefab,
                    ConvertToUnityPosition(monsterRoom.GetCenterOfRoom(), map.Width, map.Height),
                    Quaternion.identity,
                    roomsParent.transform);
                roomIdToGameObject[monsterRoom.Id] = monsterRoomGO;
            }

            foreach (var normalRoom in map.GetNormalRooms())
            {
                GameObject normalRoomGO = Instantiate(
                    normalRoomPrefab,
                    ConvertToUnityPosition(normalRoom.GetCenterOfRoom(), map.Width, map.Height),
                    Quaternion.identity,
                    roomsParent.transform);
                roomIdToGameObject[normalRoom.Id] = normalRoomGO;
            }

            foreach (var entranceRoom in map.GetEntranceRooms())
            {
                GameObject entranceRoomGO = Instantiate(
                    normalRoomPrefab,
                    ConvertToUnityPosition(entranceRoom.GetCenterOfRoom(), map.Width, map.Height),
                    Quaternion.identity,
                    roomsParent.transform);
                entranceRoomGO.GetComponent<Room>().IsEntrance = true;
                roomIdToGameObject[entranceRoom.Id] = entranceRoomGO;
            }

            foreach (var mapRoom in map.GetAllRooms())
            {
                HashSet<int> adjacentRoomsIds = mapRoom.GetAdjacentRoomIds();
                Room roomComponent = roomIdToGameObject[mapRoom.Id].GetComponent<Room>();
                foreach (var id in adjacentRoomsIds)
                {
                    roomComponent.AdjacentRooms.Add(roomIdToGameObject[id]);
                }
            }
        }

        private Vector3 ConvertToUnityPosition(Point dungeonPosition, int mapWidth, int mapHeight)
        {
            float newX = (dungeonPosition.X - (mapWidth / 2f)) / 2;
            float newY = -(dungeonPosition.Y - (mapHeight / 2f)) / 2;

            return new Vector3(newX, newY, 0f);
        }
    }
}