using UnityEngine;
using UnityEngine.UI;

public class ShopIconHandler : MonoBehaviour
{
    [Header("Shop Icon")]
    public Button shopIconButton;
    public Image shopIconImage;
    
    [Header("Shop Manager")]
    public ShopUIManager shopManager;
    
    [Header("Visual Feedback")]
    public Color normalColor = Color.white;
    public Color hoverColor = Color.yellow;
    public Color pressedColor = Color.red;
    
    [Header("Animation")]
    public bool enableHoverAnimation = true;
    public float hoverScale = 1.1f;
    public float animationSpeed = 5f;
    
    private Vector3 originalScale;
    private bool isHovering = false;
    
    void Start()
    {
        InitializeShopIcon();
        SetupEventListeners();
    }
    
    void InitializeShopIcon()
    {
        // Store original scale for animation
        originalScale = transform.localScale;
        
        // Setup button if not already assigned
        if (shopIconButton == null)
        {
            shopIconButton = GetComponent<Button>();
        }
        
        // Setup image if not already assigned
        if (shopIconImage == null)
        {
            shopIconImage = GetComponent<Image>();
        }
        
        // Set initial color
        if (shopIconImage != null)
        {
            shopIconImage.color = normalColor;
        }
    }
    
    void SetupEventListeners()
    {
        if (shopIconButton != null)
        {
            shopIconButton.onClick.AddListener(OnShopIconClicked);
        }
        
        // Setup hover events if we have an EventTrigger component
        var eventTrigger = GetComponent<UnityEngine.EventSystems.EventTrigger>();
        if (eventTrigger != null)
        {
            SetupHoverEvents(eventTrigger);
        }
    }
    
    void SetupHoverEvents(UnityEngine.EventSystems.EventTrigger eventTrigger)
    {
        // Pointer Enter event
        var pointerEnter = new UnityEngine.EventSystems.EventTrigger.Entry();
        pointerEnter.eventID = UnityEngine.EventSystems.EventTriggerType.PointerEnter;
        pointerEnter.callback.AddListener((data) => OnPointerEnter());
        eventTrigger.triggers.Add(pointerEnter);
        
        // Pointer Exit event
        var pointerExit = new UnityEngine.EventSystems.EventTrigger.Entry();
        pointerExit.eventID = UnityEngine.EventSystems.EventTriggerType.PointerExit;
        pointerExit.callback.AddListener((data) => OnPointerExit());
        eventTrigger.triggers.Add(pointerExit);
        
        // Pointer Down event
        var pointerDown = new UnityEngine.EventSystems.EventTrigger.Entry();
        pointerDown.eventID = UnityEngine.EventSystems.EventTriggerType.PointerDown;
        pointerDown.callback.AddListener((data) => OnPointerDown());
        eventTrigger.triggers.Add(pointerDown);
        
        // Pointer Up event
        var pointerUp = new UnityEngine.EventSystems.EventTrigger.Entry();
        pointerUp.eventID = UnityEngine.EventSystems.EventTriggerType.PointerUp;
        pointerUp.callback.AddListener((data) => OnPointerUp());
        eventTrigger.triggers.Add(pointerUp);
    }
    
    void OnShopIconClicked()
    {
        Debug.Log("Shop icon clicked - Opening shop");
        
        if (shopManager != null)
        {
            shopManager.OpenShop();
        }
        else
        {
            Debug.LogWarning("ShopManager not assigned to ShopIconHandler");
        }
        
        // Play click animation
        PlayClickAnimation();
    }
    
    void OnPointerEnter()
    {
        isHovering = true;
        
        if (shopIconImage != null)
        {
            shopIconImage.color = hoverColor;
        }
        
        if (enableHoverAnimation)
        {
            StartCoroutine(ScaleAnimation(originalScale * hoverScale));
        }
    }
    
    void OnPointerExit()
    {
        isHovering = false;
        
        if (shopIconImage != null)
        {
            shopIconImage.color = normalColor;
        }
        
        if (enableHoverAnimation)
        {
            StartCoroutine(ScaleAnimation(originalScale));
        }
    }
    
    void OnPointerDown()
    {
        if (shopIconImage != null)
        {
            shopIconImage.color = pressedColor;
        }
    }
    
    void OnPointerUp()
    {
        if (shopIconImage != null)
        {
            shopIconImage.color = isHovering ? hoverColor : normalColor;
        }
    }
    
    void PlayClickAnimation()
    {
        if (enableHoverAnimation)
        {
            StartCoroutine(ClickAnimation());
        }
    }
    
    System.Collections.IEnumerator ScaleAnimation(Vector3 targetScale)
    {
        Vector3 startScale = transform.localScale;
        float elapsedTime = 0f;
        
        while (elapsedTime < 1f / animationSpeed)
        {
            elapsedTime += Time.deltaTime;
            float progress = elapsedTime * animationSpeed;
            transform.localScale = Vector3.Lerp(startScale, targetScale, progress);
            yield return null;
        }
        
        transform.localScale = targetScale;
    }
    
    System.Collections.IEnumerator ClickAnimation()
    {
        Vector3 clickScale = originalScale * 0.9f;
        
        // Scale down
        yield return StartCoroutine(ScaleAnimation(clickScale));
        
        // Scale back up
        yield return StartCoroutine(ScaleAnimation(originalScale));
    }
    
    public void SetShopManager(ShopUIManager manager)
    {
        shopManager = manager;
    }
    
    public void SetShopIcon(Sprite iconSprite)
    {
        if (shopIconImage != null)
        {
            shopIconImage.sprite = iconSprite;
        }
    }
    
    public void SetInteractable(bool interactable)
    {
        if (shopIconButton != null)
        {
            shopIconButton.interactable = interactable;
        }
        
        if (shopIconImage != null)
        {
            shopIconImage.color = interactable ? normalColor : Color.gray;
        }
    }
    
    void OnDestroy()
    {
        if (shopIconButton != null)
        {
            shopIconButton.onClick.RemoveListener(OnShopIconClicked);
        }
    }
}