using UnityEngine;
using TMPro; 
using UnityEngine.SceneManagement;

public class GameManager : MonoBehaviour
{
    public static GameManager Instance; // Allows other scripts to find this one easily

    [Header("Game Settings")]
    public int totalOrbsToWin = 20;
    public float timeRemaining = 300f; // 5 minutes in seconds

    [Header("UI References")]
    public TextMeshProUGUI orbText;
    public TextMeshProUGUI timerText;

    [Header("Game Over UI")]
    public GameObject gameOverPanel;
    public TextMeshProUGUI gameOverTitleText;

    private int currentOrbs = 0;
    private bool isGameOver = false;

    public int GetOrbsInternal() { return currentOrbs; }

    public void SetDataInternal(int orbs, float time)
    {
        currentOrbs = orbs;
        timeRemaining = time;
        UpdateOrbUI();
        UpdateTimerUI();
    }

    void Awake()
    {
        // Singleton pattern: ensures only one GameManager exists
        if (Instance == null) Instance = this;
        else Destroy(gameObject);
    }

    void Update()
    {
        if (isGameOver) return;

        // Handle Timer
        if (timeRemaining > 0)
        {
            timeRemaining -= Time.deltaTime;
            UpdateTimerUI();
        }
        else
        {
            GameOver(false); // Timer ran out
        }
    }

    public void AddOrb()
    {
        currentOrbs++;
        UpdateOrbUI();

        if (currentOrbs >= totalOrbsToWin)
        {
            GameOver(true); // Collected all orbs
        }
    }

    public void SaveProgress()
    {
        PlayerPrefs.SetInt("SavedOrbs", currentOrbs);
        PlayerPrefs.SetFloat("SavedTime", timeRemaining);
        PlayerPrefs.Save();
        Debug.Log("Game Saved! Orbs: " + currentOrbs);
    }

    public void LoadProgress()
    {
        if (PlayerPrefs.HasKey("SavedOrbs"))
        {
            currentOrbs = PlayerPrefs.GetInt("SavedOrbs");
            timeRemaining = PlayerPrefs.GetFloat("SavedTime");

            UpdateOrbUI();
            UpdateTimerUI();
            Debug.Log("Game Loaded!");
        }
        else
        {
            Debug.Log("No Save Data Found.");
        }
    }

    public void ClearSave()
    {
        PlayerPrefs.DeleteAll();
        SceneManager.LoadScene(SceneManager.GetActiveScene().name);
    }

    void UpdateOrbUI()
    {
        orbText.text = "Orbs: " + currentOrbs + " / " + totalOrbsToWin;
    }

    void UpdateTimerUI()
    {
        float minutes = Mathf.FloorToInt(timeRemaining / 60);
        float seconds = Mathf.FloorToInt(timeRemaining % 60);
        timerText.text = string.Format("Time: {0:00}:{1:00}", minutes, seconds);
    }

    public void GameOver(bool won)
    {
        isGameOver = true;
        Time.timeScale = 0f; // Freeze the game
        gameOverPanel.SetActive(true);

        if (won)
        {
            gameOverTitleText.text = "VICTORY!";
            gameOverTitleText.color = Color.green;
            Debug.Log("Winner!");
        }
        else
        {
            gameOverTitleText.text = "NIGHT HAS FALLEN...";
            gameOverTitleText.color = Color.red;
            Debug.Log("Game Over!");
        }

        // Unlock cursor so player can click buttons
        Cursor.lockState = CursorLockMode.None;
        Cursor.visible = true;
    }

    public void RestartGame()
    {
        Time.timeScale = 1f;
        SceneManager.LoadScene(SceneManager.GetActiveScene().name);
    }

    public void LoadMainMenu()
    {
        Time.timeScale = 1f;
        SceneManager.LoadScene("MainMenu"); // Make sure your menu scene is named this
    }
}