using UnityEngine;
using System.Collections.Generic;

public class GameManager : MonoBehaviour
{
    public static GameManager Instance { get; private set; }

    [Header("Prefabs & Scene References")]
    [SerializeField] private GameObject diePrefab; 
    [SerializeField] private TrayManager trayManager;

    [Header("Game State")]
    [SerializeField] private List<DieDisplayController> activeDice = new List<DieDisplayController>();

    private void Awake()
    {
        if (Instance != null && Instance != this) Destroy(gameObject);
        else Instance = this;
    }

    void Start()
    {
        if (trayManager == null)
        {
            Debug.LogError("TrayManager not assigned in GameManager!", this);
            return;
        }

        // --- MODIFIED: Start by placing dice in the bag ---
        // Clear any dice from the editor for a clean start
        foreach(var die in FindObjectsOfType<DieDisplayController>()) Destroy(die.gameObject);
        activeDice.Clear();
        
        // Create initial dice (e.g., 2 for testing)
        CreateNewDieInBag();
        CreateNewDieInBag();
    }

    // This function should be called by your main "ROLL" button.
    public void OnRollButtonPressed()
    {
        Debug.Log("--- GAME MANAGER: ROLLING SELECTED DICE ---");
        bool anyDiceSelected = false;
        foreach (DieDisplayController die in activeDice)
        {
            if (die.isSelectedForRoll)
            {
                anyDiceSelected = true;
                die.RollTheDie();
            }
        }

        if (!anyDiceSelected)
        {
            Debug.LogWarning("Roll button pressed, but no dice were selected!");
        }
    }

    // This method now places the die in the bag instead of rolling it
    public void CreateNewDieInBag()
    {
        if (diePrefab == null) return;

        // Find the next available bag slot position
        Vector3 startPos = trayManager.GetDiceBagPosition(activeDice.Count);
        
        GameObject newDieObject = Instantiate(diePrefab, startPos, Quaternion.identity);
        DieDisplayController newDieController = newDieObject.GetComponent<DieDisplayController>();

        if (newDieController != null)
        {
            activeDice.Add(newDieController);
            newDieController.name = $"Die_{activeDice.Count}";
            Debug.Log($"A new die has been created in the bag at slot {activeDice.Count - 1}.");
        }
    }
}