using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class GameManager : MonoBehaviour
{
    public enum Difficulty
    {
        Easy,
        Normal,
        Hard
    }

    public enum GameMode
    {
        Defend,
        Training
    }

    public enum SubGameMode
    {
        Arcade,
        Simulation
    }

    private static GameManager _instance;
    private Difficulty _difficulty = Difficulty.Easy;
    private GameMode _gameMode = GameMode.Defend;
    private SubGameMode _subGameMode = SubGameMode.Arcade;
    private bool _isUIMenuOpen = false;

    public static GameManager Instance
    {
        get
        {
            if (_instance is null)
                Debug.LogError("GameManager is null");
            return _instance;
        }
    }

    private void Awake()
    {
        _instance = this;
    }
    private void Update()
    {
        if (Input.GetKeyUp(KeyCode.Space))
        {
            ReloadScene();
        }

        if (Input.GetKeyUp(KeyCode.KeypadEnter) && Application.isEditor)
        {
            UIMenuManager uiManager = GetComponent<UIMenuManager>();
            uiManager.SetGameMode(GameMode.Defend);
            uiManager.SetSubGameMode(SubGameMode.Arcade);
            uiManager.SetDifficulty(Difficulty.Easy);
        }

    }

    public void ReloadScene()
    {
        SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex, LoadSceneMode.Single);
    }

    public Difficulty GetDifficulty() 
    {
        return _difficulty;
    }

    public GameMode GetGameMode()
    {
        return _gameMode;
    }

    public SubGameMode GetSubGameMode()
    {
        return _subGameMode;
    }

    public bool GetIsUIMenuOpen()
    {
        return _isUIMenuOpen;
    }

    public void SetDifficulty(Difficulty d)
    {
        _difficulty = d;
    }

    public void SetGameMode(GameMode gm)
    {
        _gameMode = gm;
    }

    public void SetSubGameMode(SubGameMode sgm)
    {
        _subGameMode = sgm;
    }

    public void SetIsUIMenuOpen(bool value)
    {
        _isUIMenuOpen = value;
    }

    public void GameStart()
    {
        if (_gameMode.Equals(GameMode.Defend))
        {
            GetComponent<MapManager>().SpawnWaveScript();
            GetComponent<WaveManager>().SetToStart();
        }
    }
}