//using NUnit.Framework;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class Sphere : MonoBehaviour
{
    public GameObject GameOverPanel;
    public GameObject GameOverOptions;
    public GameObject SpherePrefab;
    public Color[] ListOfColors;
    List<GameObject> listLevel1 = new List<GameObject>();
    List<GameObject> listLevel2 = new List<GameObject>();
    List<GameObject> center2 = new List<GameObject>();
    List<GameObject> listLevel3 = new List<GameObject>();
    List<GameObject> center3 = new List<GameObject>();
    List<GameObject> listLevel4 = new List<GameObject>();
    List<GameObject> center4 = new List<GameObject>();
    List<GameObject> center5 = new List<GameObject>();
    List<List<GameObject>> listOfLists = new List<List<GameObject>>();
    MeshRenderer m;
    Rigidbody rb;
    int num;
    bool end = false;

    void Start()
    {
        StartSetter();
        
    }

    private void StartSetter()
    {
        end = false;
        GameOverPanel.SetActive(false);
        GameOverOptions.SetActive(false);
        listOfLists.Add(listLevel1);
        listOfLists.Add(center2);
        listOfLists.Add(center3);
        listOfLists.Add(center4);
        listOfLists.Add(center5);
        num = Random.Range(0, ListOfColors.Length);
        m = GetComponent<MeshRenderer>();
        m.material.color = ListOfColors[num];
        rb = GetComponent<Rigidbody>();
    }

    void Update()
    {
        if (end)
        {
            if (Input.GetKeyDown(KeyCode.Escape))
            {
                print("Escaped");
                Application.Quit();
            }
            if (Input.GetKeyDown(KeyCode.Tab))
            {
                print("Reloaded");                
                SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
            }

            return;
        }


        float xNew = transform.position.x;
        float zNew = transform.position.z;

        if (Input.GetKeyDown(KeyCode.RightArrow))
        {
            xNew++;
            if (xNew > 3.5f)
            {
                xNew = 3.5f;
            }
        }
        else if (Input.GetKeyDown(KeyCode.LeftArrow))
        {
            xNew--;
            if (xNew < -3.5f)
            {
                xNew = -3.5f;
            }
        }

        if (Input.GetKeyDown(KeyCode.UpArrow))
        {
            zNew++;
            if (zNew > 3.5f)
            {
                zNew = 3.5f;
            }
        }
        else if (Input.GetKeyDown(KeyCode.DownArrow))
        {
            zNew--;
            if (zNew < -3.5f)
            {
                zNew = -3.5f;
            }
        }

        transform.position = new Vector3(xNew, transform.position.y, zNew);
    }

    private void OnCollisionEnter(Collision coll)
    {
        Vector3 positionOld = transform.position;
        Color mOld = ListOfColors[num];

        if (positionOld.y < 4)
        {
            transform.position = new Vector3(-0.5f, 10, -0.5f);
            num = Random.Range(0, ListOfColors.Length);
            m.material.color = ListOfColors[num];
            rb.drag = rb.drag * 0.98f;
            GameObject gameObjectReference = Instantiate(SpherePrefab, positionOld, Quaternion.identity) as GameObject;
            gameObjectReference.GetComponent<MeshRenderer>().material.color = mOld;
            if (positionOld.y < 1)
            {
                listLevel1.Add(gameObjectReference);
            }
            else if (positionOld.y < 2)
            {
                if (positionOld.x == 0.5f | positionOld.x == -0.5f)
                {
                    center2.Add(gameObjectReference);
                }
                else
                {
                    listLevel2.Add(gameObjectReference);
                }

            }
            else if (positionOld.y < 2.5)
            {
                if (positionOld.x == 0.5f | positionOld.x == -0.5f)
                {
                    center3.Add(gameObjectReference);
                }
                else
                {
                    listLevel3.Add(gameObjectReference);
                }
            }
            else if (positionOld.y < 3)
            {
                if (positionOld.x == 0.5f | positionOld.x == -0.5f)
                {
                    center4.Add(gameObjectReference);
                }
                else
                {
                    listLevel4.Add(gameObjectReference);
                }
            }
            else if (positionOld.y < 4)
            {
                if (positionOld.x == 0.5f | positionOld.x == -0.5f)
                {
                    center5.Add(gameObjectReference);
                }
            }

            CheckLines();
        }

        else
        {
            end = true;

            StartCoroutine("GameOver");
        }
    }

    private IEnumerator GameOver()
    {
        yield return new WaitForSeconds(1f);

        GameOverPanel.SetActive(true);

        StartCoroutine("GameOverOpts");
    }

    private IEnumerator GameOverOpts()
    {
        yield return new WaitForSeconds(1f);

        GameOverOptions.SetActive(true);
    }

    void CheckLines()
    {
        if (listLevel1.Count == 4)
        {
            for (int k = listLevel1.Count - 1; k >= 0; k--)
            {
                Destroy(listLevel1[k]);
                listLevel1.RemoveAt(k);
            }

            for (int i = 1; i < listOfLists.Count; i++)
            {
                listOfLists[i - 1].AddRange(listOfLists[i]);
                listOfLists[i].Clear();
            }
        }

        //int count2 = 0;

        //for (int k = 0; k < listLevel2.Count; k++)
        //{
        //    count2++;
        //}

        //if (count2 == 16)
        //{
        //    for (int k = listLevel2.Count - 1; k >= 0; k--)
        //    {
        //        Destroy(listLevel2[k]);
        //        listLevel2.RemoveAt(k);
        //    }
        //}

        //int count3 = 0;

        //for (int k = 0; k < listLevel3.Count; k++)
        //{
        //    count3++;
        //}

        //if (count3 == 36)
        //{
        //    for (int k = listLevel3.Count - 1; k >= 0; k--)
        //    {
        //        Destroy(listLevel3[k]);
        //        listLevel3.RemoveAt(k);
        //    }
        //}

        //int count4 = 0;

        //for (int k = 0; k < listLevel4.Count; k++)
        //{
        //    count4++;
        //}

        //if (count4 == 64)
        //{
        //    for (int k = listLevel4.Count - 1; k >= 0; k--)
        //    {
        //        Destroy(listLevel4[k]);
        //        listLevel4.RemoveAt(k);
        //    }
        //}
    }
}