//using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;

public class SpaceTimeController : MonoBehaviour {


    List<Vector3> positions;
    public float maxSeconds;

    public AudioSource []rewindSFX;
    public GameObject invertColorMask;

    public VHSPostProcessEffect[] vhs;

    public bool isRewinding = false;

    public GameObject Player;

    public GameObject portal;

    public GameObject OpenedPortal;

    public bool PortalOpened = false;

	// Use this for initialization
	void Start () {
        positions = new List<Vector3>();
        rewindSFX = GameObject.FindGameObjectWithTag("MainCamera").gameObject.GetComponents<AudioSource>();
        vhs = GameObject.FindGameObjectWithTag("MainCamera").gameObject.GetComponents<VHSPostProcessEffect>();
        invertColorMask = GameObject.Find("InvertColorMask");
        Player = GameObject.FindGameObjectWithTag("Player");
        OpenedPortal = GameObject.FindGameObjectWithTag("Portal");
    }
	
	// Update is called once per frame
	void Update () {

        if (Input.GetKeyDown(KeyCode.R))
        {
            Player.GetComponent<PlayerMovementController>().enabled = false;
            Player.GetComponent<TimeController>().enabled = false;
            Player.GetComponent<WeaponController>().haveGun = false;
            Player.GetComponent<Rigidbody2D>().isKinematic = true;
            isRewinding = true;
            rewindSFX[1].Play();
            rewindSFX[0].volume = 0;
            invertColorMask.GetComponent<Renderer>().enabled = true;
            //vhs[1].enabled = true;

            
        }
        else if(Input.GetKeyUp(KeyCode.R))
        {
            Player.GetComponent<PlayerMovementController>().enabled = true;
            Player.GetComponent<TimeController>().enabled = true;
            Player.GetComponent<WeaponController>().haveGun = true;
            Player.GetComponent<Rigidbody2D>().isKinematic = false;
            isRewinding = false;
            rewindSFX[1].Stop();
            rewindSFX[0].volume = 1;
            invertColorMask.GetComponent<Renderer>().enabled = false;
            //vhs[1].enabled = false;
            
        }

        RewindMaster();


        if (Input.GetKeyDown(KeyCode.E))
        {
            
            if (OpenedPortal)
            {
                Teleport();
            }
            else
            {
                OpenPortal();
            }
           
            

        }






    }

    void RewindMaster()
    {
        if (isRewinding == true)
        {
            
            Rewind();
            
        }
        else
        {

            if (GameObject.FindGameObjectWithTag("Player").GetComponent<TimeController>().isActive == true)
            {
                Time.timeScale = GameObject.FindGameObjectWithTag("Player").GetComponent<TimeController>().timeSpeed;
            }
            else
            {
                Time.timeScale = 1;
            }
            Record();
            
        }
    }

    void Record()
    {
        if (positions.Count > Mathf.Round(maxSeconds * (1f/Time.deltaTime)))
        {
            positions.RemoveAt(positions.Count - 1);

        }
        else
        {
            positions.Insert(0,transform.position);

        }
    }

    void Rewind()
    {
        Time.timeScale = 2;
        try
        {

            
            this.transform.position = positions[0];
            positions.RemoveAt(0);
            
        }
        catch (ArgumentOutOfRangeException e)
        {
            isRewinding = false;
            rewindSFX[1].Stop();
            rewindSFX[0].volume = 1;
            invertColorMask.GetComponent<Renderer>().enabled = false;

            Player.GetComponent<PlayerMovementController>().enabled = true;
            Player.GetComponent<TimeController>().enabled = true;
            Player.GetComponent<WeaponController>().haveGun = true;
            Player.GetComponent<Rigidbody2D>().isKinematic = false;

            if (GameObject.FindGameObjectWithTag("Player").GetComponent<TimeController>().isActive == true)
            {
                Time.timeScale = GameObject.FindGameObjectWithTag("Player").GetComponent<TimeController>().timeSpeed;
            }
            else
            {
                Time.timeScale = 1;
            }
        }
        
        

    }

    void OpenPortal()
    {
        OpenedPortal = Instantiate(portal, new Vector3(this.transform.position.x, this.transform.position.y + .1f, this.transform.position.z), this.transform.rotation);
        PortalOpened = true;
     
       
        
    }


    void Teleport()
    {
        this.transform.position = OpenedPortal.transform.position;
        Destroy(OpenedPortal);
        PortalOpened = false;


    }

}