using CharacterSystem;
using PrizeSystem;
using System;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.Serialization;
using UnityEngine.UI;

public class CharacterSelectionPanel : MonoBehaviour, IControlable
{
    public event Action<CharacterDefinition> OnCharacterSelected;
    public event Action OnExitRequested;

    [SerializeField, FormerlySerializedAs("CharacterNameLabel")] private TextMeshProUGUI _characterNameLabel;
    [SerializeField, FormerlySerializedAs("CharacterIcon")] private Image _characterIcon;
    [SerializeField] private RectTransform _prizeTable;
    [SerializeField] private PrizeView _prizeViewPrefab;
    [SerializeField] private AudioClip _clickClip;
    [SerializeField, FormerlySerializedAs("buttons")] private List<MSignalButton> _buttons;
    [SerializeField] private MSignalButton _selectButton;
    [SerializeField] private MSignalButton _exitButton;

    private CharacterDefinition[] _characters;
    private int _characterIndex;
    private int _buttonIndex;

    public int CharactersCount => _characters?.Length ?? 0;
    public CharacterDefinition SelectedCharacter => _characters[_characterIndex];
    public bool ControlsEnabled { get; set; } = true;
    private MSignalButton SelectedButton => _buttons[_buttonIndex];

    private void Awake()
    {
        _selectButton.OnClick += SelectCharacter;
        _exitButton.OnClick += RequestExit;
    }

    private void Start()
    {
        _characters = CharactersController.I.GetDefinitionsArray();
        Open();
    }

    private void OnDestroy()
    {
        _selectButton.OnClick -= SelectCharacter;
        _exitButton.OnClick -= RequestExit;
    }

    public void Open()
    {
        if (_buttons == null || _buttons.Count == 0)
            return;

        SelectedButton.DeselectAnimation();
        _buttonIndex = 0;
        SelectedButton.SelectAnimation();

        if (_characters == null || _characters.Length == 0)
            return;

        _characterIndex = Mathf.Clamp(_characterIndex, 0, _characters.Length - 1);
        DisplaySelectedCharacter();
    }

    public void SwitchCharacter(int direction)
    {
        if (direction == 0 || CharactersCount < 2)
            return;

        _characterIndex = (_characterIndex + direction + _characters.Length) % _characters.Length;
        DisplaySelectedCharacter();
        SoundManager.instance.PlaySfx(_clickClip);
    }

    public void SwitchButton(int direction)
    {
        if (direction == 0)
            return;

        int newIndex = Mathf.Clamp(_buttonIndex + direction, 0, _buttons.Count - 1);
        if (newIndex == _buttonIndex)
            return;

        SelectedButton.DeselectAnimation();
        _buttonIndex = newIndex;
        SelectedButton.SelectAnimation();
        SoundManager.instance.PlaySfx(_clickClip);
    }

    public void UpdateControls()
    {
        if (CharactersCount == 0)
            return;

        Vector2Int axes = In.GetAxis(JoystickSide.Both, InteractMode.Discrete);
        SwitchCharacter(axes.x);
        SwitchButton(-axes.y);
        SelectedButton.TakeInput(In.GetAction(JoystickSide.Both, InteractMode.Continious));
    }

    private void SelectCharacter()
    {
        OnCharacterSelected?.Invoke(SelectedCharacter);
    }

    private void RequestExit()
    {
        OnExitRequested?.Invoke();
    }

    private void DisplaySelectedCharacter()
    {
        _characterNameLabel.text = SelectedCharacter.CharacterName;
        _characterIcon.sprite = SelectedCharacter.Icon;

        ClearTable();
        PrizeSet prizeSet = PrizeSystemManager.PrizeContainer.Sets[SelectedCharacter.CharacterIndex];
        DisplayPrizeSet(prizeSet);
    }

    private void ClearTable()
    {
        for (int i = _prizeTable.childCount - 1; i >= 0; i--)
        {
            Transform child = _prizeTable.GetChild(i);
            child.SetParent(null, false);
            Destroy(child.gameObject);
        }
    }

    private void DisplayPrizeSet(PrizeSet prizeSet)
    {
        foreach (Prize prize in prizeSet.Prizes)
        {
            PrizeView view = Instantiate(_prizeViewPrefab, _prizeTable);
            view.SetPrize(prize);
        }
    }
}