using System;
using UnityEngine;
using Object = UnityEngine.Object;
using System.Collections.Generic;

public enum GameState
{
    PickRoomOne,
    PickRoomTwo,
    PickDiceOne,
    PickDiceTwo,
}
public class GameManager : MonoBehaviour
{
    public GameState state;
    public GameObject rooms;
    public GameObject dice;
    public DiceRoller diceRoller;

    private (Die, Die) _dicePairOne = (null, null);
    private (Die, Die) _dicePairTwo = (null, null);
    
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        state = GameState.PickDiceOne;
        foreach (Transform roomTransform in rooms.transform)
        {
            roomTransform.gameObject.GetComponent<Room>().ValidRoomClicked += ValidRoomClicked;
        }

        foreach (Transform diceTransform in dice.transform)
        {
            diceTransform.gameObject.GetComponent<Die>().DieClicked += DieClicked;
        }
        diceRoller.RollDice();
    }

    void ValidRoomClicked(object sender, Room room) {
        if (state != GameState.PickRoomOne && state != GameState.PickRoomTwo)
        {
            return;
        }
        room.SetRoomExplored();
        if (state == GameState.PickRoomOne)
        {
            state = GameState.PickDiceTwo;
        }
        else
        {
            // Not implemented
        }
        
    }

    void DieClicked(object sender, Die die)
    {
        if (state != GameState.PickDiceOne && state != GameState.PickDiceTwo)
        {
            return;
        }

        if (state == GameState.PickDiceOne)
        {
            if (_dicePairOne.Item1 == null && _dicePairOne.Item2 == null)
            {
                _dicePairOne.Item1 = die;
                die.DieBeingUsed(true, false);
            }
            else if (_dicePairOne.Item2 == null)
            {
                _dicePairOne.Item2 = die;
                _dicePairOne.Item1.DieBeingUsed(true, true);
                die.DieBeingUsed(true, true);
            }
            
            if (_dicePairOne.Item1 != null && _dicePairOne.Item2 != null)
            {
                state = GameState.PickRoomOne;
            }
        }
        else if(state == GameState.PickDiceTwo)
        {
            if (_dicePairTwo.Item1 == null && _dicePairTwo.Item2 == null)
            {
                _dicePairTwo.Item1 = die;
                die.DieBeingUsed(false, false);
            }
            else if (_dicePairTwo.Item2 == null)
            {
                _dicePairTwo.Item2 = die;
                _dicePairTwo.Item1.DieBeingUsed(false, true);
                die.DieBeingUsed(false, true);
            }
            
            if (_dicePairTwo.Item1 != null && _dicePairTwo.Item2 != null)
            {
                state = GameState.PickRoomTwo;
            }
        }
    }
}