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

public class GameControl : MonoBehaviour
{
    public bool finishedGame = false;
    public bool failedGame = false;
    public int noteGame = 1;
    public bool inGame = false;
    public static GameControl instance;
    public bool ended = false;

    GameObject originalCamera, originalCanvas;
    public GameObject gameCreate;
    Camera originalMainCamera;

    AudioSource musicPlayer;

    private void Awake()
    {
        ended = false;
        instance = this;
    }

    public void SetOriginalCanvasActive()
    {
        originalCanvas.GetComponent<CanvasGroup>().interactable = true;
        originalCanvas.GetComponent<CanvasGroup>().alpha = 1;
        originalCanvas.GetComponent<CanvasGroup>().blocksRaycasts = true;
    }

    public void SetOriginalCanvasInactive()
    {
        originalCanvas.GetComponent<CanvasGroup>().interactable = false;
        originalCanvas.GetComponent<CanvasGroup>().alpha = 0;
        originalCanvas.GetComponent<CanvasGroup>().blocksRaycasts = false;
    }

    public void StartGame(string tagGame)
    {
        inGame = true;
        originalMainCamera = Camera.main;
        originalCamera = GameObject.Find("Main Camera");
        originalCanvas = GameObject.Find("Canvas");

        Debug.Log("Inciando jogo " + "Games/" + tagGame + "/Info");

        StartCoroutine(StartTutorial(Resources.Load<GameObject>
            ("Games/" + tagGame + "/Info").GetComponent<GameInfo>(), tagGame));
    }

    public void StartedGame()
    {
        ended = false;
        finishedGame = false;
        failedGame = false;
    }

    public void FinishGame(bool failed = false)
    {
        finishedGame = true;
        failedGame = failed;
    }

    IEnumerator StartTutorial(GameInfo gameInfo, string idgames)
    {
        if (gameInfo.tutorial != null)
        {
            GameObject tutorial = Instantiate(gameInfo.tutorial);

            yield return new WaitForSecondsRealtime(4);

            while (!Input.GetMouseButton(0))
            {
                yield return new WaitForEndOfFrame();
            }

            Destroy(tutorial);
        }

        CreateWaitScene();

        yield return new WaitForSecondsRealtime(.25f);

        gameCreate = Instantiate(Resources.Load<GameObject>("Games/" + idgames + "/Game"));
        gameCreate.name = "Game";

        DestroyWaitScene();

        SetOriginalCanvasInactive(); originalCamera.SetActive(false);

        string musicToPlay = gameInfo.music.ToString();

        if (musicToPlay != "nenhuma")
        {
            AudioClip clipToPlay = Resources.Load<AudioClip>("GamesSong/" + musicToPlay);

            StartCoroutine(StartMusic(clipToPlay));
        }
    }

    void CreateWaitScene()
    {
        GameObject obj = Instantiate(new GameObject(), originalCanvas.transform);
        Image img = obj.AddComponent<Image>();
        img.color = new Color(0, 0, 0, .75f);
        obj.transform.localScale = new Vector3(20, 20, 20);

        obj.name = "GameLoad";
    }

    void DestroyWaitScene()
    {
        Destroy(GameObject.Find("GameLoad"));
    }

    IEnumerator StartMusic(AudioClip clip)
    {
        musicPlayer = gameObject.AddComponent<AudioSource>();
        musicPlayer.loop = true;

        musicPlayer.clip = clip;
        musicPlayer.volume = 0;

        musicPlayer.Play();

        while (musicPlayer.volume < .1f)
        {
            float time = Time.deltaTime * .1f;
            musicPlayer.volume += time;

            yield return new WaitForEndOfFrame();
        }

        musicPlayer.volume = .1f;

        yield break;
    }

    IEnumerator StopMusic()
    {
        if (musicPlayer != null)
        {
            while (musicPlayer.volume > 0)
            {
                float time = Time.deltaTime * .25f;
                musicPlayer.volume -= time;

                yield return new WaitForEndOfFrame();
            }

            Destroy(musicPlayer);
        }

        yield break;
    }

    private void FixedUpdate()
    {
        if (!ended)
        {
            if (finishedGame)
            {
                StartCoroutine(endWin());
                ended = true;

                StartCoroutine(WaitAndEndGame(true));
            }
            if (failedGame)
            {
                StartCoroutine(endLost());
                ended = true;

                StartCoroutine(WaitAndEndGame(false));
            }
        }
    }

    IEnumerator WaitAndEndGame(bool state)
    {
        yield return new WaitForEndOfFrame();

        GameObject.Find("2").GetComponent<GamePage>().EndGame(state);
    }

    IEnumerator endWin()
    {
        Destroy(gameCreate);

        originalCamera.SetActive(true);
        SetOriginalCanvasActive();

        GeneralScript general = GeneralScript.instance;
        general.CompleteGame(noteGame);
        general.LiberarAvanco(true);

        inGame = false;

        StartCoroutine(StopMusic());

        yield break;
    }

    IEnumerator endLost()
    {
        Destroy(gameCreate);

        SetOriginalCanvasActive();
        originalCamera.SetActive(true);

        GeneralScript general = GeneralScript.instance;
        general.CompleteGame(noteGame);
        general.LiberarAvanco(false);

        inGame = false;

        StartCoroutine(StopMusic());

        yield break;
    }


}