using UnityEngine;
using VContainer;
using YachtDice.Economy;

namespace YachtDice.Shop
{
    public class ShopController : MonoBehaviour
    {
        [SerializeField] private ShopView shopView;

        private ShopCatalog _catalog;
        private CurrencyBank _currencyBank;
        private ShopModel _model;

        public ShopCatalog Catalog => _catalog;
        public event System.Action OnCloseRequested;

        [Inject]
        public void Construct(ShopCatalog catalog, CurrencyBank currencyBank, ShopModel model)
        {
            this._catalog = catalog;
            this._currencyBank = currencyBank;
            this._model = model;
        }

        private void Start()
        {
            shopView.OnBuyClicked += HandleBuyClicked;
            shopView.OnCloseRequested += HandleCloseRequested;
            _currencyBank.OnBalanceChanged += HandleCurrencyChanged;
            _model.OnItemPurchased += HandleItemPurchased;

            shopView.Populate(_catalog.All, _model);
            shopView.UpdateCurrencyDisplay(_currencyBank.Balance);
        }

        private void OnDestroy()
        {
            if (shopView != null)
            {
                shopView.OnBuyClicked -= HandleBuyClicked;
                shopView.OnCloseRequested -= HandleCloseRequested;
            }

            if (_currencyBank != null)
                _currencyBank.OnBalanceChanged -= HandleCurrencyChanged;

            if (_model != null)
                _model.OnItemPurchased -= HandleItemPurchased;
        }

        public void ToggleVisibility()
        {
            if (shopView == null) return;

            if (shopView.IsVisible)
                shopView.Hide();
            else
                shopView.Show();
        }

        public void Open()
        {
            if (shopView == null) return;
            shopView.Show();
        }

        public void Close()
        {
            if (shopView == null) return;
            shopView.Hide();
        }

        public bool IsOpen => shopView != null && shopView.IsVisible;

        private void HandleBuyClicked(IShopItem item)
        {
            _model.TryPurchase(item);
        }

        private void HandleCurrencyChanged(int newBalance)
        {
            shopView.UpdateCurrencyDisplay(newBalance);
            shopView.RefreshStates(_catalog.All, _model);
        }

        private void HandleItemPurchased(IShopItem item)
        {
            shopView.RefreshStates(_catalog.All, _model);
        }

        private void HandleCloseRequested()
        {
            OnCloseRequested?.Invoke();
        }
    }
}