using UnityEngine;
using UnityEngine.UI;

public class InteractionPromptUI : MonoBehaviour
{
    public static InteractionPromptUI Instance { get; private set; }

    [SerializeField] private GameObject promptPanel;
    [SerializeField] private Text promptText;

    private Object currentOwner;
    private string currentMessage = "Нажмите E";

    public void Configure(GameObject panel, Text textComponent)
    {
        promptPanel = panel;
        promptText = textComponent;

        if (promptPanel != null)
        {
            promptPanel.SetActive(false);
        }
    }

    private void Awake()
    {
        if (Instance != null && Instance != this)
        {
            Destroy(gameObject);
            return;
        }

        Instance = this;
    }

    private void Update()
    {
        RefreshVisibility();
    }

    public void ShowPrompt(Object owner, string message)
    {
        if (owner == null)
        {
            return;
        }

        currentOwner = owner;
        currentMessage = string.IsNullOrWhiteSpace(message) ? "Нажмите E" : message;
        RefreshVisibility();
    }

    public void HidePrompt(Object owner)
    {
        if (owner == null || currentOwner != owner)
        {
            return;
        }

        currentOwner = null;
        RefreshVisibility();
    }

    public void HideAll()
    {
        currentOwner = null;
        RefreshVisibility();
    }

    private void RefreshVisibility()
    {
        if (promptPanel == null || promptText == null)
        {
            return;
        }

        if (!IsOwnerValid(currentOwner))
        {
            currentOwner = null;
        }

        var shouldShow = currentOwner != null && !GameUIState.IsAnyBlockingUIOpen;
        promptPanel.SetActive(shouldShow);

        if (shouldShow)
        {
            promptText.text = currentMessage;
        }
    }

    private static bool IsOwnerValid(Object owner)
    {
        if (owner == null)
        {
            return false;
        }

        if (owner is Component component)
        {
            return component.gameObject.activeInHierarchy;
        }

        if (owner is GameObject gameObject)
        {
            return gameObject.activeInHierarchy;
        }

        return true;
    }
}