using System;
using System.Collections;
using Management;
using Player;
using UnityEngine;
using UnityEngine.UIElements;

namespace State.Game
{
    public class MainStateMachine : Machine
    {
        public GameObject MainMenuPrefab => mainMenuPrefab;
        public GameObject PlayerPrefab => playerPrefab;
        public GameObject FruitsPrefab => fruitsPrefab;

        public Movement PlayerMovement { get; private set; }
        public AudioClip DeathSound => deathSound;

        [SerializeField] private GameObject mainMenuPrefab;
        [SerializeField] private GameObject playerPrefab;
        [SerializeField] private GameObject fruitsPrefab;
        [SerializeField] private GameObject deathScreenPrefab;
        [SerializeField] private AudioClip deathSound;
        [SerializeField] private GameObject tutorialPrefab;
        [SerializeField] private bool skipTutorial;
        
        private GameObject _playerInstance;
        private GameObject _fruitsInstance;
        private GameObject _deathScreenInstance;
        private GameObject _tutorialScreenInstance;
        private bool _tutorial1Done;
        private bool _tutorial2Done;
        
        private void Awake()
        {
            _deathScreenInstance = Instantiate(deathScreenPrefab);
            ShowDeathScreen(false);
            _tutorialScreenInstance = Instantiate(tutorialPrefab);
            ShowTutorial(false);
        }

        public void Respawn()
        {
            if (_fruitsInstance)
            {
                Destroy(_fruitsInstance);
            }

            if (_playerInstance)
            {
                Destroy(_playerInstance);
            }
            var respawn = GameObject.FindGameObjectWithTag("Respawn").transform;
            _fruitsInstance = Instantiate(fruitsPrefab);
            _playerInstance = Instantiate(playerPrefab, respawn.position, Quaternion.identity);
            PlayerMovement = _playerInstance.GetComponent<Movement>();
        }

        public void ShowDeathScreen(bool show)
        {
            _deathScreenInstance.GetComponent<UIDocument>().rootVisualElement.Q<VisualElement>().visible = show;
        }

        public void ShowTutorial(bool show)
        {
            if (skipTutorial) return;
            if (show)
            {
                if (!_tutorial1Done)
                {
                    StartCoroutine(DelayTutorial());
                    return;
                }

                if (!_tutorial2Done)
                {
                    Time.timeScale = 0;
                    Services.Instance.InputRouter.OnInteract += HandleClearTutorial;
                    _tutorial2Done = true;
                    _tutorialScreenInstance.GetComponent<UIDocument>().rootVisualElement.Q<VisualElement>("Tutorial2").style.display = DisplayStyle.Flex;;
                }
            }
            else
            {
                Time.timeScale = 1;
                _tutorialScreenInstance.GetComponent<UIDocument>().rootVisualElement.Q<VisualElement>("Tutorial1").style.display = DisplayStyle.None;Time.timeScale = 1;
                _tutorialScreenInstance.GetComponent<UIDocument>().rootVisualElement.Q<VisualElement>("Tutorial2").style.display = DisplayStyle.None;
            }
        }

        private IEnumerator DelayTutorial()
        {
            yield return new WaitForSeconds(0.25f);
            Time.timeScale = 0;
            Services.Instance.InputRouter.OnInteract += HandleClearTutorial;
            _tutorialScreenInstance.GetComponent<UIDocument>().rootVisualElement.Q<VisualElement>("Tutorial1").style.display = DisplayStyle.Flex;;
            _tutorial1Done = true;
        }

        private void HandleClearTutorial(bool obj)
        {
            Services.Instance.InputRouter.OnInteract -= HandleClearTutorial;
            ShowTutorial(false);
        }
    }
}