using HurricaneVR.Framework.Core.UI;
using Sirenix.OdinInspector;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;
using Zenject;

public class LevelMenuUI : MonoBehaviour
{
    [Title("Debug")]
    [Inject]
    [ReadOnly]
    private HVRInputModule uiInput;

    [Inject]
    [ReadOnly]
    private SceneManager sceneManager;

    [SerializeField]
    [ReadOnly]
    private Canvas canvas;

    [Title("Selection")]
    [SerializeField]
    private GameObject levelSelection;

    [SerializeField]
    private GameObject levelSelectionContent;

    [SerializeField]
    private GameObject levelItemPrefab;

    [Title("Detail")]
    [SerializeField]
    private GameObject levelDetail;

    [SerializeField]
    private LevelItemUI levelDetailUI;

    [SerializeField]
    [ReadOnly]
    private Level selectedLevel;

    [SerializeField]
    private Button backButton;

    [SerializeField]
    private Button startButton;

    private bool isDetailVisible => selectedLevel != null;

    private void Start()
    {
        if (uiInput == null) return;

        canvas = GetComponent<Canvas>();
        uiInput?.AddCanvas(canvas);

        backButton.onClick.AddListener(() => BackClicked());
        startButton.onClick.AddListener(() => StartClicked());

        UpdateLevelSelection();
        UpdateUI();
    }

    private void UpdateUI()
    {
        levelSelection.SetActive(!isDetailVisible);
        levelDetail.SetActive(isDetailVisible);
        backButton.gameObject.SetActive(isDetailVisible);
    }

    private void UpdateLevelSelection()
    {
        foreach (Transform transform in levelSelectionContent.transform)
        {
            var item = transform.gameObject.GetComponent<LevelItemUI>();
            item.OnClicked.RemoveAllListeners();
            Destroy(transform.gameObject);
        }

        foreach (var level in sceneManager.Levels)
        {
            var go = Instantiate(levelItemPrefab);
            go.name = level.name;
            go.transform.SetParent(levelSelectionContent.transform, false);
            var item = go.GetComponent<LevelItemUI>();
            item.Setup(level, false);
            item.OnClicked.AddListener(OnLevelSelected);
        }
    }

    private void OnLevelSelected(Level level)
    {
        selectedLevel = level;
        levelDetailUI.Setup(level, false);
        UpdateUI();
    }

    private void BackClicked()
    {
        selectedLevel = null;
        UpdateUI();
    }

    private void StartClicked()
    {
        sceneManager.SwitchToLevel(selectedLevel);
    }
}