extends Control
## Title: pixel rain, Pay2Win, loud music, Burger-Cham, first-run language.

@onready var subtitle: Label = $Subtitle
@onready var bubble: Label = $Bubble
@onready var start_btn: Button = $StartButton
@onready var rain: Node2D = $Rain
@onready var lang_panel: PanelContainer = $LangPanel
@onready var music_hint: Label = $MusicHint

var _rain_sprites: Array[Sprite2D] = []

func _ready() -> void:
	GameState.current_scene_id = "title_screen"
	Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
	AudioDirector.burger_cham_enabled = true
	AudioDirector.play_title_music()
	# Lyrics belong in the sung track — not on-screen (DESIGN.md §1).
	if music_hint:
		music_hint.visible = false
	_refresh()
	Locale.locale_changed.connect(_refresh)
	_spawn_rain()
	_spawn_disturbed()
	lang_panel.visible = Settings.needs_language_picker()
	start_btn.visible = not lang_panel.visible

func _spawn_disturbed() -> void:
	## Bottom-left disturbed human (DESIGN.md §1)
	var s := Sprite2D.new()
	s.name = "DisturbedHuman"
	s.texture = load("res://assets/sprites/placeholders/disturbed.png")
	s.position = Vector2(90, 640)
	s.texture_filter = CanvasItem.TEXTURE_FILTER_NEAREST
	SpriteFit.apply_sprite2d(s, 96.0)
	add_child(s)
	# Hide ColorRect placeholder if present
	var old := get_node_or_null("Disturbed")
	if old:
		old.visible = false

func _refresh() -> void:
	if not is_inside_tree():
		return
	subtitle.text = Locale.tr_key("title_pay2win")
	bubble.text = Locale.tr_key("title_bubble")
	start_btn.text = Locale.tr_key("menu_start")
	if music_hint:
		music_hint.visible = false
	$LangPanel/Margin/VBox/Title.text = Locale.tr_key("lang_pick_title")
	$LangPanel/Margin/VBox/BtnDE.text = Locale.tr_key("lang_de")
	$LangPanel/Margin/VBox/BtnEN.text = Locale.tr_key("lang_en")
	$LangPanel/Margin/VBox/BtnBY.text = Locale.tr_key("lang_by")

func _spawn_rain() -> void:
	var paths = [
		"res://assets/sprites/placeholders/mario.png",
		"res://assets/sprites/placeholders/sonic.png",
		"res://assets/sprites/placeholders/burger.png",
	]
	for i in range(28):
		var s := Sprite2D.new()
		s.texture = load(paths[i % paths.size()])
		s.position = Vector2(randf() * 1280.0, randf() * -720.0)
		# Fit longest side to ~48px — works for 16×16 and 2k burger art alike.
		SpriteFit.apply_sprite2d(s, SpriteFit.UI_RAIN_PX)
		s.texture_filter = CanvasItem.TEXTURE_FILTER_NEAREST
		rain.add_child(s)
		_rain_sprites.append(s)

func _process(delta: float) -> void:
	for s in _rain_sprites:
		s.position.y += (90.0 + s.get_index() * 2.5) * delta
		if s.position.y > 760.0:
			s.position.y = -40.0
			s.position.x = randf() * 1280.0

func _pick_lang(lang: String) -> void:
	Settings.set_language(lang)
	lang_panel.visible = false
	start_btn.visible = true
	_refresh()

func _on_lang_de() -> void:
	_pick_lang("de")

func _on_lang_en() -> void:
	_pick_lang("en")

func _on_lang_by() -> void:
	_pick_lang("by")

func _on_start_pressed() -> void:
	if Settings.needs_language_picker():
		lang_panel.visible = true
		return
	AudioDirector.burger_cham_enabled = false
	GameState.start_new_game()