using System;
using SHADE;
using SHADE_Scripting.Audio;

public class PauseMenu : Script
{
  public GameObject resumeBtn;
  public GameObject retryBtn;
  public GameObject quitBtn;

  private TextRenderable gamePauseText;
  public GameObject canvas;

  protected override void awake()
  {
    if (GameManager.Instance != null)
      GameManager.Instance.GamePause = false;

    if (canvas)
    {
      gamePauseText = canvas.GetComponentInChildren<TextRenderable>();
      canvas.SetActive(false);
    }

    if (!resumeBtn)
      Debug.LogError("Resume Btn missing");

    if (!retryBtn)
      Debug.LogError("Retry Btn missing");

    if (!quitBtn)
      Debug.LogError("Quit Btn missing");
  }
  protected override void start()
  {
    //resume
    UIElement resume = resumeBtn.GetComponent<UIElement>();
    if (resume != null)
    {
      resume.OnRelease.RegisterAction(() =>
      {
        if (GameManager.Instance.GamePause)
        {
          GameManager.Instance.GamePause = false;
          Input.SetMouseCentering(true);
          Application.IsCursorVisible = false;
          AudioHandler.PauseAllSounds(false);
          if (gamePauseText)
            gamePauseText.Enabled = false;
          if (canvas)
            canvas.SetActive(false);
          Application.FixDeltaTime = Time.DefaultFixDeltaTime;
          AnimationSystem.TimeScale = AnimationSystem.DefaultTimeScale;
        }
      });
    }
    else
    {
      Debug.LogError("Failed to register resume button.");
    }

    //retry
    UIElement retry = retryBtn.GetComponent<UIElement>();
    if (retry != null)
    {
      retry.OnRelease.RegisterAction(() =>
      {
        Audio.StopAllSounds();
        SceneManager.RestartScene();
        GameManager.Instance.GamePause = false;
        GameManager.Instance.stealFoodPopUpDone = false;
        GameManager.Instance.PreviewLevelDone = false;
        Application.FixDeltaTime = Time.DefaultFixDeltaTime;
        AnimationSystem.TimeScale = AnimationSystem.DefaultTimeScale;
      });
    }
    else
    {
      Debug.LogError("Failed to register retry button.");
    }

    UIElement quit = quitBtn.GetComponent<UIElement>();
    if (quit != null)
    {
      quit.OnRelease.RegisterAction(() =>
      {
        Audio.StopAllSounds();
        Application.FixDeltaTime = Time.DefaultFixDeltaTime;
        AnimationSystem.TimeScale = AnimationSystem.DefaultTimeScale;
        //go to main menu
        SceneManager.ChangeScene(97158628);
      });
    }
    else
    {
      Debug.LogError("Failed to register quit button.");
    }
  }

  protected override void update()
  {

    if (Input.GetKeyUp(Input.KeyCode.Escape) && !GameManager.Instance.GamePause && GameManager.Instance.stealFoodPopUpDone)
    {
      GameManager.Instance.GamePause = true;
      Input.SetMouseCentering(false);
      Application.IsCursorVisible = true;
      AudioHandler.PauseAllSounds(true);
      if (gamePauseText)
        gamePauseText.Enabled = true;
      if (canvas)
        canvas.SetActive(true);
      Application.FixDeltaTime = 0;
      AnimationSystem.TimeScale = 0;
    }

  }
}