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
@onready var action_prompt: ActionPrompt = %ActionPrompt

## 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 if the scene is waiting for a proceed or listening for a skip.
var text_revealed: 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 = "skip scene"
		elif is_node_ready():
			button.text = "reveal full text (hold)"
			action_prompt.action = "skip"
		text_revealed = value
## while this is true, a counter counts up to automatically proceed.
var aborted
var is_auto_proceeding: bool = false:
	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
			action_prompt.action = "skip"
			button.text = "continue"
		elif not is_auto_proceeding and value:
			$AnimationPlayer.play("replace_text")
			# use this to disable the updates during progress.
			await _transition_text
			is_auto_proceeding = true
			action_prompt.action = "ui_cancel"
			button.text = "keep reading"
		is_auto_proceeding = value
		
		#resets progress bar on button
		time_pressed = 0

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()
			pressed = false
			time_pressed = 0
			if not text_revealed:
				text_revealed = true
			else:
				is_auto_proceeding = true
	
	elif is_auto_proceeding and text_revealed:
		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 unrevealed:
			$AnimationPlayer.play("reveal_skip")
			unrevealed = false
		
		if event.is_action_pressed("skip"):
			if not (is_auto_proceeding or aborted):
				pressed = true
			else:
				proceed.emit()
				is_auto_proceeding = false
				$AnimationPlayer.play("vanish_skip")
				await $AnimationPlayer.animation_finished
				reset()
				
			get_viewport().set_input_as_handled()
		elif event.is_action_released("skip"):
			if not is_auto_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 is_auto_proceeding:
			proceed.emit()
			get_viewport().set_input_as_handled()
			reset()
		elif event.is_action_pressed("ui_cancel"):
			if not aborted and is_auto_proceeding:
				is_auto_proceeding = false
				aborted = true
				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():
	text_revealed = true
	is_auto_proceeding = true

func transition_text():
	_transition_text.emit()

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