using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class CanvasManager : MonoBehaviour
{
    #region Singleton
    public static CanvasManager singleton;

    private void Awake()
    {
        if (singleton == null)
        {
            singleton = this;
        }
        else if (singleton != this)
        {
            Destroy(gameObject);
        }
    }
    #endregion


    [SerializeField] private float fadeDuration = 1f;
    public GameObject leftArrow;
    public GameObject rightArrow;
    public GameObject goBackArrow;
    public RawImage videoPlayerBackground;
    public GameObject videoSkipButton;
    public OptionsMenu optionsMenu;

    public GameObject titleScreen;

    public GameObject gameUiParent;

    public GameObject endingScreen;
    public LoadingScreen loadingScreen;

    public Fader fader;

    public ObjectZoomPanel objectZoomPanel;

    public WarningPanel warningPanel;

    public bool CanPlay => !titleScreen.activeSelf && !warningPanel.gameObject.activeSelf;


    void Start()
    {
        videoPlayerBackground.raycastTarget = false;
        gameUiParent.SetActive(false);
        titleScreen.SetActive(true);
        endingScreen.SetActive(false);
        loadingScreen.Show(0);
        warningPanel.gameObject.SetActive(false);
    }

    public void PressPlay()
    {
        GameManager.singleton.soundManager.PlayClickSound();
        GameManager.singleton.OnPressPlay();
    }

    public void StartGame()
    {
        titleScreen.SetActive(false);
        gameUiParent.SetActive(true);
        videoSkipButton.SetActive(false);
        videoPlayerBackground.raycastTarget = false;
        videoPlayerBackground.color = new Color(1, 1, 1, 0);
    }


    public void MoveLeft()
    {
        CameraManager.singleton.MoveLeft();
    }

    public void MoveRight()
    {
        CameraManager.singleton.MoveRight();
    }

    public void HideArrows()
    {
        leftArrow.SetActive(false);
        rightArrow.SetActive(false);
    }

    public void ShowArrows(bool enable = true)
    {
        leftArrow.SetActive(enable);
        rightArrow.SetActive(enable);
        gameUiParent.SetActive(enable);
    }

    public void EnterSubScene()
    {
        HideArrows();
        goBackArrow.SetActive(true);
    }


    public void PlayVideo()
    {
        HideArrows();
        goBackArrow.SetActive(false);
        videoPlayerBackground.raycastTarget = true;
        videoPlayerBackground.color = new Color(1, 1, 1, 1);
    }

    public void DisplaySkipButton()
    {
        videoSkipButton.SetActive(true);
    }

    public void SkipVideo()
    {
        CameraManager.singleton.StopVideo();
        StopVideoUI();
    }


    public void StopVideoUI()
    {
        videoPlayerBackground.raycastTarget = false;
        videoPlayerBackground.color = new Color(1, 1, 1, 0);
        videoSkipButton.SetActive(false);
        goBackArrow.SetActive(true);
        CameraManager.singleton.UpdateArrows();
    }


    public void GoBackToMainScene()
    {
        GameManager.singleton.soundManager.PlayClickSound();

        if (CameraManager.singleton.CurrentSubScene == null && !objectZoomPanel.gameObject.activeSelf)
        {
            GameManager.singleton.RestartGameWithWarning();
        }
        else if (objectZoomPanel.gameObject.activeSelf)
        {
            objectZoomPanel.gameObject.SetActive(false);
        }
        else
        {
            CameraManager.singleton.MoveToMainScene();
        }
    }


    public void DisplayEnding()
    {
        endingScreen.SetActive(true);
    }

    public void GoToEnding()
    {
        GameManager.singleton.soundManager.PlayClickSound();
        CameraManager.singleton.GoToEnding();
        endingScreen.SetActive(false);
    }

    public void Warning(string name, Action onYes, Action onNo = null)
    {
        warningPanel.OpenWarning(name, onYes, onNo);
    }
}