using UnityEngine;
using TMPro;
using System;
public class AnswerOption : MonoBehaviour
{
    [SerializeField] private TextMeshPro answerText;
    private int answerValue;
    private MathQuizManager quizManager;
    private bool isCorrect;
    private Vector3 startPos, targetPos;
    private float showTime = 0.8f, disappearTime = 1f, floatHeight = 3f;
    private float showT = 0f, disappearT = 0f;
    private bool isShown = false, isDisappearing = false;

    public static event Action OnAnswerClicked;

    void Start()
    {
        if (!answerText) answerText = GetComponentInChildren<TextMeshPro>();
        startPos = transform.position;
        targetPos = startPos + Vector3.up * floatHeight;
        Destroy(gameObject, showTime + disappearTime + 15f);
    }

    public void Initialize(MathQuizManager mgr, int value, bool correct)
    {
        quizManager = mgr;
        answerValue = value;
        isCorrect = correct;
        if (answerText) answerText.text = value.ToString();
        Invoke(nameof(StartDisappear), 15f);
    }

    void Update()
    {
        if (isDisappearing)
        {
            disappearT += Time.deltaTime;
            float t = Mathf.Clamp01(disappearT / disappearTime);
            transform.position = Vector3.Lerp(transform.position, transform.position + Vector3.up * floatHeight, t);
            transform.localScale = Vector3.Lerp(Vector3.one, Vector3.zero, t);
            if (t >= 1f) Destroy(gameObject);
        }
        else if (!isShown)
        {
            showT += Time.deltaTime;
            float t = Mathf.Clamp01(showT / showTime);
            transform.position = Vector3.Lerp(startPos, targetPos, t);
            transform.localScale = Vector3.Lerp(Vector3.zero, Vector3.one, t);
            if (t >= 1f) isShown = true;
        }
        else
        {
            transform.position = Vector3.Lerp(transform.position, targetPos, 0.3f * Time.deltaTime);
        }
    }

    void StartDisappear() { isDisappearing = true; disappearT = 0f; }

    void OnMouseDown()
    {
        if (quizManager != null && isShown && !isDisappearing)
        {
            quizManager.CheckAnswer(this);
            StartDisappear();
            OnAnswerClicked?.Invoke();
        }
    }

    public int GetAnswerValue() => answerValue;
}