using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using Random = System.Random;

namespace BlueWater.Tycoons
{
    public class CustomerTable : MonoBehaviour
    {
        [SerializeField]
        private Collider _collider;
        
        [SerializeField]
        private GameObject _visualLookObject;
        
        [SerializeField]
        private SpriteRenderer _carpetRenderer;
        
        [field: SerializeField]
        public List<TableSeat> TableSeats { get; private set; }

        [SerializeField]
        private int _tableNumber;

        [SerializeField]
        private Sprite _carpetOnSprite;
        
        [SerializeField]
        private Sprite _carpetOffSprite;
        
        private TableSeat _tableSeat;
        private Random _random = new();
        private TycoonManager _tycoonManager;

        private void OnDestroy()
        {
            if (_tycoonManager && _tycoonManager.CustomerTableController)
            {
                _tycoonManager.CustomerTableController.UnregisterTable(this);
            }
        }

        public TableSeat FindEmptySeat()
        {
            var seatCount = TableSeats.Count;
            var indices = new List<int>(Enumerable.Range(0, seatCount));

            while (indices.Count > 0)
            {
                var randomIndex = _random.Next(indices.Count);
                var seatIndex = indices[randomIndex];
                indices.RemoveAt(randomIndex);

                var tableSeat = TableSeats[seatIndex];
                if (!tableSeat.IsReserved && !tableSeat.IsOccupied && tableSeat.IsCleaned)
                {
                    return tableSeat;
                }
            }
            return null;
        }

        public void Show()
        {
            _collider.enabled = true;
            _carpetRenderer.sprite = _carpetOnSprite;
            _visualLookObject.SetActive(true);
            
            foreach (var element in TableSeats)
            {
                element.SetTableNumber(_tableNumber);
            }
            
            _tycoonManager = TycoonManager.Instance;
            _tycoonManager.CustomerTableController.RegisterTable(this);
        }
        
        public void Hide()
        {
            _collider.enabled = false;
            _carpetRenderer.sprite = _carpetOffSprite;
            _visualLookObject.SetActive(false);
        }
    }
}