using System;
using DG.Tweening;
using UnityEngine;
using UnityEngine.UI;

public sealed class InputTestPanel : MonoBehaviour, IControlable
{
    public event Action OnClosed;

    [SerializeField] private CanvasGroup _canvasGroup;
    [SerializeField] private RectTransform _leftJoystickHandle;
    [SerializeField] private RectTransform _rightJoystickHandle;
    [SerializeField] private Image _leftActionButton;
    [SerializeField] private Image _rightActionButton;
    [SerializeField] private Image _serviceButton;
    [SerializeField] private RectTransform _exitProgressFill;
    [SerializeField] private float _joystickTravel = 80f;
    [SerializeField] private float _exitHoldDuration = 1f;
    [SerializeField] private float _fadeDuration = 0.25f;
    [SerializeField] private Color _idleColor = new Color(0.25f, 0.25f, 0.28f, 1f);
    [SerializeField] private Color _pressedColor = new Color(1f, 0.85f, 0.1f, 1f);

    private Tween _fadeTween;
    private float _exitHoldTime;
    private bool _isClosing;

    public bool ControlsEnabled { get; set; }

    private void OnDisable()
    {
        _fadeTween?.Kill();
        _fadeTween = null;
        ControlsEnabled = false;
    }

    public void Open()
    {
        _fadeTween?.Kill();
        transform.SetAsLastSibling();
        _canvasGroup.alpha = 0f;
        _canvasGroup.blocksRaycasts = true;
        _exitHoldTime = 0f;
        _isClosing = false;
        ControlsEnabled = true;
        ResetVisuals();

        _fadeTween = _canvasGroup.DOFade(1f, _fadeDuration).SetEase(Ease.OutCubic).SetUpdate(true);
        _fadeTween.PlayForward();
    }

    public void UpdateControls()
    {
        Vector2Int leftAxis = In.GetAxis(JoystickSide.Left, InteractMode.Continious);
        Vector2Int rightAxis = In.GetAxis(JoystickSide.Right, InteractMode.Continious);
        bool leftActionPressed = In.GetAction(JoystickSide.Left, InteractMode.Continious);
        bool rightActionPressed = In.GetAction(JoystickSide.Right, InteractMode.Continious);

        _leftJoystickHandle.anchoredPosition = (Vector2)leftAxis * _joystickTravel;
        _rightJoystickHandle.anchoredPosition = (Vector2)rightAxis * _joystickTravel;
        SetButtonState(_leftActionButton, leftActionPressed);
        SetButtonState(_rightActionButton, rightActionPressed);
        SetButtonState(_serviceButton, In.GetService());

        bool exitButtonsHeld = leftActionPressed && rightActionPressed;
        _exitHoldTime = exitButtonsHeld
            ? Mathf.Min(_exitHoldTime + Time.unscaledDeltaTime, _exitHoldDuration)
            : 0f;

        SetExitProgress(_exitHoldTime / _exitHoldDuration);

        if (_exitHoldTime >= _exitHoldDuration)
            Close();
    }

    private void Close()
    {
        if (_isClosing)
            return;

        _isClosing = true;
        ControlsEnabled = false;
        _fadeTween?.Kill();
        _fadeTween = _canvasGroup.DOFade(0f, _fadeDuration).SetEase(Ease.InCubic).SetUpdate(true);
        _fadeTween.OnComplete(() =>
        {
            _canvasGroup.blocksRaycasts = false;
            OnClosed?.Invoke();
        });
        _fadeTween.PlayForward();
    }

    private void ResetVisuals()
    {
        _leftJoystickHandle.anchoredPosition = Vector2.zero;
        _rightJoystickHandle.anchoredPosition = Vector2.zero;
        SetButtonState(_leftActionButton, false);
        SetButtonState(_rightActionButton, false);
        SetButtonState(_serviceButton, false);
        SetExitProgress(0f);
    }

    private void SetButtonState(Image button, bool pressed)
    {
        button.color = pressed ? _pressedColor : _idleColor;
        button.rectTransform.localScale = pressed ? Vector3.one * 0.92f : Vector3.one;
    }

    private void SetExitProgress(float progress)
    {
        Vector2 anchorMax = _exitProgressFill.anchorMax;
        anchorMax.x = Mathf.Clamp01(progress);
        _exitProgressFill.anchorMax = anchorMax;
    }
}