extends Node3D
## Glitschkönig: Reveal, Quirxels, Split-Phasen, Flucht des letzten Pixels.

enum Phase { FULL, SPLIT, FLEE, DONE }

var _phase: Phase = Phase.FULL
var _revealed: bool = false
var _splits_left: int = 2

func _ready() -> void:
	GameState.current_scene_id = "final_boss"
	GameState.heal_full()
	_revealed = bool(GameState.get_flag("glitsch_revealed", false))
	if not _revealed:
		_do_reveal()
	var boss := get_node_or_null("Hongkong")
	if boss:
		boss.set("max_hp", 12)
		if boss.has_signal("hit"):
			boss.hit.connect(_on_boss_hit)
		if boss.has_signal("defeated"):
			boss.defeated.connect(_on_boss_defeated)
	var t := Timer.new()
	t.wait_time = 2.8
	t.autostart = true
	t.timeout.connect(_spawn_quirxel)
	add_child(t)

func _do_reveal() -> void:
	GameState.set_flag("glitsch_revealed", true)
	Inventory.add_item("banana", 1)
	Inventory.add_item("wartchen", 1)
	var ui := get_node_or_null("/root/UIRoot")
	if ui and ui.has_method("show_dialog"):
		ui.show_dialog(Locale.tr_key("dialog_reveal"), 5.5)

func _on_boss_hit(remaining: int) -> void:
	if _phase == Phase.FULL and remaining <= 6 and _splits_left > 0:
		_phase = Phase.SPLIT
		_splits_left -= 1
		_spawn_split_clone()
		var ui := get_node_or_null("/root/UIRoot")
		if ui and ui.has_method("show_dialog"):
			ui.show_dialog("Er teilt sich wie Minecraft-Schleim!", 2.5)
	elif remaining <= 2 and _phase != Phase.FLEE and _phase != Phase.DONE:
		_phase = Phase.FLEE
		var boss := get_node_or_null("Hongkong")
		if boss is Node3D:
			boss.global_position += Vector3(randf_range(-4, 4), 0, -3)

func _spawn_split_clone() -> void:
	var scene: PackedScene = load("res://scenes/prefabs/enemy.tscn")
	if scene == null:
		return
	var c: Node3D = scene.instantiate()
	c.name = "GlitschSplit"
	add_child(c)
	c.global_position = Vector3(randf_range(-3, 3), 0.1, -2)
	c.set("max_hp", 4)
	c.set("texture_path", "res://assets/sprites/placeholders/hongkong.png")
	var bill = c.get_node_or_null("BillboardSprite")
	if bill and bill.has_method("set_texture"):
		var tex: Texture2D = load("res://assets/sprites/placeholders/hongkong.png")
		if tex:
			bill.set_texture(tex)

func _spawn_quirxel() -> void:
	if _phase == Phase.DONE or GameState.get_flag("hongkong_defeated", false):
		return
	var scene: PackedScene = load("res://scenes/prefabs/hazard.tscn")
	if scene == null:
		return
	var h: Node3D = scene.instantiate()
	add_child(h)
	h.global_position = Vector3(randf_range(-6, 6), 0.1, randf_range(-6, 0))
	h.set("death_cause_key", "death_quirxel")
	await get_tree().create_timer(5.0).timeout
	if is_instance_valid(h):
		h.queue_free()

func _on_boss_defeated() -> void:
	_phase = Phase.DONE
	Achievements.unlock("beat_hongkong")
	GameState.set_flag("hongkong_defeated", true)
	var ui := get_node_or_null("/root/UIRoot")
	if ui and ui.has_method("show_dialog"):
		ui.show_dialog(Locale.tr_key("dialog_hongkong_boss"), 3.0)
		await get_tree().create_timer(2.5).timeout
		ui.show_dialog(Locale.tr_key("dialog_bear_end"), 5.0)
	await get_tree().create_timer(3.5).timeout
	GameState.goto_scene("end_screen")