using TMPro;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.InputSystem;

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

    [Header("UI")]
    [SerializeField] private CanvasGroup canvasGroup;
    [SerializeField] private TMP_Text endLabel;
    [SerializeField] private Image buttonIcon;

    [Header("Input")]
    [SerializeField] private InputActionReference returnAction; // e.g. A-Button

    [Header("Flow")]
    [SerializeField] private CockpitTransitionController transitionController;
    [SerializeField] private ShipMovement shipMovement;

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

        Instance = this;
        HideImmediate();
    }

    private void OnEnable()
    {
        if (returnAction != null)
        {
            returnAction.action.performed += OnReturnPressed;
            returnAction.action.Enable();
        }
    }

    private void OnDisable()
    {
        if (returnAction != null)
        {
            returnAction.action.performed -= OnReturnPressed;
            returnAction.action.Disable();
        }
    }

    public void Show(string message)
    {
        if (endLabel != null)
            endLabel.text = message;

        if (buttonIcon != null)
            buttonIcon.enabled = true;

        if (canvasGroup != null)
        {
            canvasGroup.alpha = 1f;
            canvasGroup.interactable = false;
            canvasGroup.blocksRaycasts = false;
        }
    }

    public void Hide()
    {
        if (canvasGroup != null)
        {
            canvasGroup.alpha = 0f;
            canvasGroup.interactable = false;
            canvasGroup.blocksRaycasts = false;
        }

        if (buttonIcon != null)
            buttonIcon.enabled = false;
    }

    private void HideImmediate()
    {
        if (canvasGroup != null)
        {
            canvasGroup.alpha = 0f;
            canvasGroup.interactable = false;
            canvasGroup.blocksRaycasts = false;
        }

        if (buttonIcon != null)
            buttonIcon.enabled = false;
    }

    private void OnReturnPressed(InputAction.CallbackContext ctx)
    {
        // Only react if the screen is actually visible
        if (canvasGroup == null || canvasGroup.alpha < 0.9f)
            return;

        // Optional: stop the ship + reset pose (safety)
        if (shipMovement != null)
        {
            shipMovement.SetActive(false);
            shipMovement.ResetToStartPose();
        }

        // Optional: if you want to hard-reset questions right away:
        // QuestionManager.Instance?.ResetToFirstQuestion();
        // ScoreHUD.Instance?.ResetScore();

        // Back to cockpit menu (reusing tutorial method is fine)
        if (transitionController != null)
        {
            transitionController.EndTutorialReturnToMenu();
            // or, if you prefer to add a dedicated method:
            // transitionController.EndGameReturnToMenu();
        }

        Hide();
    }
}