class_name CardBurner
extends Playable


@onready var cursor: CandleCursor = %CandleCursor
@onready var ancors: Array[Control] = [%Ancor1, %Ancor2, %Ancor3, %Ancor4]

signal card_burned

var cards : Array[Card] = []
var _submitted := false

func _ready():
	print_debug("CardBurner.gd: %s._ready()" % self.name)
	super._ready()
	%SkipButton.pressed.connect(card_burned.emit)


## Main play coroutine - simple linear flow for burning a card
func play() -> void:
	print_debug("CardBurner: Starting card burning sequence")

	# 1. Get all card names from the board (excluding stickies which start with "p")
	var card_names: Array[StringName] = []
	for item_name in State.save_game.board_positions.keys():
		if not item_name.begins_with("p"):
			card_names.append(item_name)

	print_debug("CardBurner: Found %d cards to choose from" % card_names.size())

	# 2. Get card instances and shuffle them
	var stack : Array = HardCards.get_cards_by_name_array(card_names)["cards"]
	stack.shuffle()

	cards = []

	# 3. Populate the 4 anchor slots with random cards
	for ancor: Control in ancors:
		var card: Card = stack.pop_front()
		cards.append(card)
		ancor.add_child(card)
		print_debug("CardBurner: Added card '%s' to anchor" % card.name)

	print("CardBurner: ", len(cards))

	# 4. Wait for player to burn a card (or skip)
	print_debug("CardBurner: Waiting for player to burn a card...")
	handle_direction_input(Vector2.UP)
	await card_burned

	# 5. Play vanish animation and wait for completion
	print_debug("CardBurner: Card burned, playing vanish animation")
	$AnimationPlayer.play("vanish")
	await $AnimationPlayer.animation_finished

	print_debug("CardBurner: Sequence complete")


func handle_hover(card: Draggable) -> void:
	if not card is Card: return
	selection = cards.find(card)


func handle_mouse_button(event: InputEventMouseButton, card: Card) -> void:
	if event.button_index == MOUSE_BUTTON_MASK_LEFT and event.is_pressed() and not event.is_echo():
		_submit(card)

func _submit(card : Card):
		_submitted = true
		%SkipButton.visible = false
		await card.torch()
		card_burned.emit()


func _input(event: InputEvent) -> void:
	if _submitted: return
	if event.is_action_pressed("ui_up"):
		handle_direction_input(Vector2.UP)
	elif event.is_action_pressed("ui_down"):
		handle_direction_input(Vector2.DOWN)
	elif event.is_action_pressed("ui_left"):
		handle_direction_input(Vector2.LEFT)
	elif event.is_action_pressed("ui_right"):
		handle_direction_input(Vector2.RIGHT)
	elif event.is_action_pressed("ui_accept"):
		_submit(cards[selection])


var focus_cards: bool = false:
	set(focus):
		if _submitted: return
		focus_cards = focus
		if focus_cards:
			cursor.visible = true
			%SkipButton.release_focus()
		else:
			cursor.visible = false
			%SkipButton.grab_focus()


var selection: int:
	set(value):
		if _submitted: return
		selection = value % len(cards)
		for i in range(len(cards)):
			var card := cards[i]
			card.highlighted = (selection == i)
			card.burn_state = Card.burned.SINGED if card.highlighted else Card.burned.NOT
			if card.highlighted:
				cursor.gamepad_target = card.global_position + Vector2(-120, 150)


func handle_direction_input(direction: Vector2) -> void:
	if _submitted: return
	if not cursor.gamepad_mode:
		cursor.gamepad_mode = true
		focus_cards = focus_cards

	match direction:
		Vector2.UP:
			focus_cards = true
			cursor.visible = true
			%SkipButton.release_focus()
			selection = selection
		Vector2.DOWN:
			focus_cards = false
			cursor.visible = false
			%SkipButton.grab_focus()
		Vector2.LEFT:
			focus_cards = true
			selection -= 1
		Vector2.RIGHT:
			focus_cards = true
			selection += 1

	if not focus_cards: cursor.gamepad_target += Vector2(0, 50)