class_name SkipControl extends Control

signal skip
signal proceed
signal _transition_text
@export var skip_delay: float = 0.5
@export var auto_continue_delay: float = 2
var time_pressed: float = 0

@onready var button: Button = %SkipButton
@onready var progress: ProgressBar = %ProgressBar

# control is hidden when there is no input.
var unrevealed: bool = true
# as this can be pressed for multiple reasons, this variable is keeping track of all of them.
var pressed: bool = false
# determines wheather or not the scene is waiting for a proceed or listening for a skip.
var proceeding: bool = false:
	set(value):
		if value and is_node_ready():
			if unrevealed:
				$AnimationPlayer.play("reveal_skip")
				unrevealed = false
			else:
				$AnimationPlayer.play("replace_text")
				await _transition_text
			button.text = "continuing ..."
		elif is_node_ready():
			button.text = "skip reading (hold)"
		proceeding = value
# while this is true, a counter counts up to automatically proceed.
var is_auto_proceeding: bool = true:
	set(value):
		if is_auto_proceeding and not value:
			var tween = get_tree().create_tween()
			tween.set_ease(Tween.EASE_IN)
			tween.set_trans(Tween.TRANS_QUAD)
			tween.tween_property(progress, "value", 0.0, 0.3)
			time_pressed = 0
			$AnimationPlayer.play("replace_text")
			# use this to disable the updates during progress.
			is_auto_proceeding = false
			await _transition_text
			button.text = "continue (press)"
		is_auto_proceeding = value
		
		#resets progress bar on button
		time_pressed = 0

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	if pressed and is_visible_in_tree():
		time_pressed += delta
		progress.value = time_pressed / skip_delay
		if time_pressed >= skip_delay:
			skip.emit()
			print("emmitted skip!")
			pressed = false
			time_pressed = 0
	
	elif is_auto_proceeding and proceeding:
		time_pressed += delta
		progress.value = time_pressed / auto_continue_delay
		if time_pressed >= auto_continue_delay:
			proceed.emit()
			reset()


func _input(event: InputEvent) -> void:
	if is_visible_in_tree():
		if not event is InputEventMouseMotion and unrevealed:
			$AnimationPlayer.play("reveal_skip")
			unrevealed = false
		
		if event.is_action_pressed("skip"):
			if not proceeding:
				pressed = true
			else:
				proceed.emit()
				reset()
			get_viewport().set_input_as_handled()
		elif event.is_action_released("skip"):
			if not proceeding:
				pressed = false
				time_pressed = 0
				progress.value = 0
				get_viewport().set_input_as_handled()
		elif Input.is_action_just_pressed("ui_accept") or Input.is_action_just_pressed("ui_focus_next") or Input.is_action_just_pressed("skip") and proceeding:
			proceed.emit()
			get_viewport().set_input_as_handled()
			reset()
		elif event.is_action_pressed("ui_cancel"):
			# FIXME this right now would be consumed by the pause menu.
			is_auto_proceeding = false
			get_viewport().set_input_as_handled()

func _on_skip_button_toggled(button_pressed):
	if button_pressed:
		pressed = true
	else:
		pressed = false
		time_pressed = 0

func start_proceed_countdown():
	proceeding = true

func transition_text():
	_transition_text.emit()

func reset():
	$AnimationPlayer.play("RESET")
	await(get_tree().create_timer(1).timeout)
	unrevealed = true
	pressed = false
	proceeding = false