extends Node2D

var board = []
var current_player = "X"

func _ready():
	board = ["", "", "", "", "", "", "", "", ""]
	for i in range(9):
		var button = $GridContainer.get_node("Button" + str(i))
		button.connect("pressed", Callable(self, "_on_button_pressed").bind(i))

func _on_button_pressed(index):
	if board[index] == "":
		board[index] = current_player
		update_button_text(index)
		if check_winner():
			show_winner(current_player)
		else:
			switch_player()
			if current_player == "O":
				ai_move()

func ai_move():
	var empty_cells = []
	for i in range(9):
		if board[i] == "":
			empty_cells.append(i)
	if empty_cells.size() > 0:
		var ai_index = empty_cells[randi() % empty_cells.size()]
		board[ai_index] = current_player
		update_button_text(ai_index)
		if check_winner():
			show_winner(current_player)
		else:
			switch_player()

func update_button_text(index):
	var button = $GridContainer.get_node("Button" + str(index))
	button.text = board[index]

func switch_player():
	current_player = "O" if current_player == "X" else "X"

func check_winner():
	var winning_combinations = [
		[0, 1, 2], [3, 4, 5], [6, 7, 8], # Rows
		[0, 3, 6], [1, 4, 7], [2, 5, 8], # Columns
		[0, 4, 8], [2, 4, 6]  # Diagonals
	]
	for combo in winning_combinations:
		if board[combo[0]] != "" and board[combo[0]] == board[combo[1]] and board[combo[1]] == board[combo[2]]:
			return true
	return false

func show_winner(player):
	print(player + " wins!")
	# You can add more UI to show the winner