using TMPro;
using UnityEngine;
using DG.Tweening;

public class LetterSlot : MonoBehaviour
{
    [SerializeField] private TextMeshProUGUI _label;

    [Header("Анимация выбора")]
    [SerializeField] private float _normalScale = 1f;
    [SerializeField] private float _selectedScale = 1.1f;
    [SerializeField] private Color _normalColor;
    [SerializeField] private Color _selectedColor;
    [SerializeField] private float _animationDuration = 0.2f;

    private int _symbolIndex;
    private string _alphabet;
    private Sequence _animation;

    public char Symbol => _alphabet[_symbolIndex];

    private void OnDestroy() => StopAnimation();

    public void Init(char symbol, string alphabet)
    {
        _alphabet = alphabet;
           _symbolIndex = _alphabet.IndexOf(symbol);
        if( _symbolIndex < 0 ) _symbolIndex = 0;

        SetSymbol(_symbolIndex);
        SetSelected(false, instant: true);
    }

    public void SetSelected(bool selected, bool instant = false)
    {
        StopAnimation();
        float targetScale = selected ? _selectedScale : _normalScale;
        Color targetColor = selected ? _selectedColor : _normalColor;

        if (instant)
        {
            transform.localScale = Vector3.one * targetScale;
            _label.color = targetColor;
            return;
        }

        _animation = DOTween.Sequence();
        _animation.Join(transform.DOScale(targetScale, _animationDuration));
        _animation.Join(_label.DOColor(targetColor, _animationDuration));

        _animation.PlayForward();
    }

    public void ChangeSymbol(int direction)
    {
        _symbolIndex = (_symbolIndex + direction + _alphabet.Length) % _alphabet.Length;
        SetSymbol(_symbolIndex);
    }

    public void SetSymbol(int index)
    {
        _symbolIndex = index;
        _label.text = Symbol.ToString();
    }

    public void SetSymbol(char symbol)
    {
        int index = _alphabet.IndexOf(symbol);
        if (index < 0)
            SetSymbol(0);
        else
            SetSymbol(index);
    }

    private void StopAnimation()
    {
        if (_animation != null)
        {
            _animation.Kill();
            _animation = null;
        }
    }
}