extends Control

const TRAIN_WHISTLE_STREAM: AudioStream = preload("res://tgcc/train/sounds/train_whistle2.mp3")

@onready var play_button: Button = $%PlayButton
@onready var resume_button: Button = $%ResumeButton
@onready var settings_button: Button = $%SettingsButton
@onready var save_button: Button = $%SaveButton
@onready var quit_button: Button = $%QuitButton
@export var fade_time: float = 0.5
@export var menu_whistle_volume_db: float = -12.0

var _fallback_whistle_player: AudioStreamPlayer

func _ready() -> void:
	_create_fallback_whistle_player()
	play_button.pressed.connect(_on_play_button_pressed)
	save_button.pressed.connect(_on_save_button_pressed)
	quit_button.pressed.connect(_on_quit_button_pressed)
	resume_button.pressed.connect(func(): UIEvents.resume_game_requested.emit())

func _on_play_button_pressed() -> void:
	_play_train_horn()
	await get_tree().create_timer(fade_time).timeout
	SceneManager.change_scene(SceneConfig.SceneName.GAME)

func _create_fallback_whistle_player() -> void:
	_fallback_whistle_player = AudioStreamPlayer.new()
	_fallback_whistle_player.name = "FallbackTrainWhistlePlayer"
	_fallback_whistle_player.bus = &"SFX"
	_fallback_whistle_player.volume_db = menu_whistle_volume_db
	_fallback_whistle_player.stream = TRAIN_WHISTLE_STREAM
	add_child(_fallback_whistle_player)

func _play_train_horn() -> void:
	if not UIEvents.toot_toot.get_connections().is_empty():
		UIEvents.toot_toot.emit(false)
		return

	if _fallback_whistle_player == null:
		return

	_fallback_whistle_player.stop()
	_fallback_whistle_player.play()

func _on_save_button_pressed() -> void:
	GameState.save_game()


func _on_quit_button_pressed() -> void:
	GameState.quit_game()