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

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

    [SerializeField] TextMeshProUGUI CharacterNameLabel;
    [SerializeField] Image CharacterIcon;
    [SerializeField] AudioClip ClickSound;

    [SerializeField] RectTransform _prizeTable;
    [SerializeField] PrizeView _prizeViewPrefab;


    private Character[] characters;
    private int characterIndex = 0;

    [SerializeField] private List<MSignalButton> buttons;
    [SerializeField] private MSignalButton _selectButton;
    [SerializeField] private MSignalButton _exitButton;

    private int buttonIndex = 0;

    public int CharactersCount => characters.Length;
    public Character SelectedCharacter => characters[characterIndex];

    public bool ControlsEnabled { get; set; }
    private MSignalButton SelectedButton => buttons[buttonIndex];

    private void Update()
    {
        UpdateControls();
    }
    
    private void Start()
    {
        _selectButton.OnClick += _selectButton_OnClick;
        _exitButton.OnClick += _exitButton_OnClick;

        characters = CharactersController.GetCharactersArray();
        characterIndex = 0;
        DisplaySelectedCharacter();

        buttonIndex = 0;
        SelectedButton.SelectAnimation();
        DisplaySelectedCharacter();
    }


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

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

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

        characterIndex = (characterIndex + direction + characters.Length) % characters.Length;
        DisplaySelectedCharacter();
    }

    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();
    }

    private void DisplaySelectedCharacter()
    {
        CharacterNameLabel.text = SelectedCharacter.characterName;
        CharacterIcon.sprite = SelectedCharacter.visualModule.icon;

        ClearTable();

        var set = PrizeSystemManager.PrizeContainer.Sets[SelectedCharacter.CharacterIndex];
        DisplayPrizeSet(set);
    }

    public void UpdateControls()
    {
        int dir_h = In.GetAxis(Axis.Horizontal, JoystickSide.Both);
        SwitchCharacter(dir_h);

        int dir_v = -In.GetAxis(Axis.Vertical, JoystickSide.Both);
        SwitchButton(dir_v);

        SelectedButton.TakeInput(In.GetButtonAnyPlayer(PlayerAction.action));
    }

    private void ClearTable()
    {
        for (int i = _prizeTable.childCount - 1; i >= 0; i--)
        {
            var go = _prizeTable.GetChild(i).gameObject;
            Destroy(go);
        }
    }

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