using UnityEngine;

public class GameManager : MonoBehaviour
{
    public Ghost[] ghosts;
    public Pacman pacman;
    public Transform pellets;

    public int ghostMultiplier { get; private set; } = 1;
    public int score { get; private set;}
    public int lives { get ; private set;}
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        NewGame();
    }
    private void NewGame()
    {
        SetScore(0);
        Setlives(3);
        NewRound();
    }
    private void NewRound()
    {
        foreach ( Transform pellet in this.pellets)
        {
            pellet.gameObject.SetActive(true);
        }
        ResetState();

    }
        private void ResetState()

        {
            ResetGhostMultiplier();

            for ( int i = 0; i < this.ghosts.Length; i++)
            {
            this.ghosts[i].ResetState();
            }
            this.pacman.ResetState();

        }
        private void GameOver()
        {
            for ( int i = 0; i < this.ghosts.Length; i++)
            {
            this.ghosts[i].gameObject.SetActive(false);
            }
            this.pacman.gameObject.SetActive(false);

        }
    private void SetScore(int score)
    {
        this.score = score;
    }
    private void Setlives(int lives){
        this.lives =lives;
    }
    // Update is called once per frame
    void Update()
    {
        if(this.lives <= 0 && Input.anyKeyDown)
        {
            NewGame();
        }
    }
    public void GhostEaten(Ghost ghost)
    {
        int points = ghost.points * this.ghostMultiplier;
        SetScore(this.score + points);
        this.ghostMultiplier++;
      
    }
    public void PacmanEaten()
    {
        this.pacman.gameObject.SetActive(false);

        Setlives(this.lives - 1);

        if(this.lives > 0)
        {
           Invoke(nameof(ResetState), 3.0f);
        }else
        {
            GameOver();
        }
        
    }
    public void PelletEaten(Pellet pellet)
    {
        pellet.gameObject.SetActive(false);

        SetScore(this.score + pellet.points);

        if(!HasRemainigPellets())
        {
            this.pacman.gameObject.SetActive(false);
            Invoke(nameof(NewRound), 3.0f);
        }
    }
    public void Power_PelletEaten(Power_Pellet pellet)
    {
        for( int i= 0; i < this.ghosts.Length; i++)
        {
            this.ghosts[i].Frightened.Enable(pellet.duration);
        }


        PelletEaten(pellet);
        CancelInvoke();
        Invoke (nameof(ResetGhostMultiplier), pellet.duration);
        
    }
    public bool HasRemainigPellets()
    {
        foreach (Transform pellet in this.pellets)
        {
            if(pellet.gameObject.activeSelf)
            {
                return true;
            }
        }
        return false;
    }
    private void ResetGhostMultiplier() 
    {
        this.ghostMultiplier = 1;    
    }
}