extends Control

@onready var resume_button: Button = $PauseButtons/ResumeButton
@onready var save_button: Button = $PauseButtons/SaveButton
@onready var quit_button: Button = $PauseButtons/QuitToMenuButton
var player: Node = null


func _ready() -> void:
	visible = false
	process_mode = Node.PROCESS_MODE_ALWAYS
	if resume_button:
		resume_button.pressed.connect(_on_resume)
	if save_button:
		save_button.pressed.connect(_on_save)
	if quit_button:
		quit_button.pressed.connect(_on_quit_to_menu)


## Pause has its own binding; menu cancel must not pause during gameplay.
func _input(event: InputEvent) -> void:
	var pause_pressed := event.is_action_pressed("ui_pause")
	var cancel_pressed := event.is_action_pressed("ui_cancel")
	if not pause_pressed and not (visible and cancel_pressed):
		return
	var banner := get_node_or_null("/root/Node3D/HUD/ScrambleBanner")
	if banner and banner.visible:
		return
	if visible or get_tree().paused:
		_on_resume()
		get_viewport().set_input_as_handled()
		return
	if not GameplayInput.gameplay_enabled():
		return
	var p := get_tree().get_first_node_in_group("player")
	if p == null:
		p = get_node_or_null("/root/Node3D/Player")
	if p:
		open_pause(p)
		get_viewport().set_input_as_handled()


## Blocks gameplay and selects a controller-accessible control before pausing.
func open_pause(player_ref: Node) -> void:
	player = player_ref
	visible = true
	GameplayInput.set_menu_open(self, true)
	resume_button.grab_focus()
	Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
	get_tree().paused = true


## Restores control only after currently held gameplay inputs return to neutral.
func _on_resume() -> void:
	visible = false
	get_tree().paused = false
	GameplayInput.set_menu_open(self, false)
	Input.mouse_mode = Input.MOUSE_MODE_CAPTURED


func _on_save() -> void:
	if player:
		GameState.save_game(player)
	else:
		var p := get_tree().get_first_node_in_group("player")
		if p:
			GameState.save_game(p)


func _on_quit_to_menu() -> void:
	get_tree().paused = false
	GameplayInput.set_menu_open(self, false)
	Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
	get_tree().change_scene_to_file("res://Scenes/main_menu.tscn")