@tool
extends Node3D
class_name CheeseSeller
## Places a cheese table and periodically launches moldy cheese at the player.
## DESIGN: stab the cheese (projectile), not the seller — seller dies of grief when cheese destroyed.
## @tool: billboard look only in editor (no cheese firing).

@export var texture_path: String = "res://assets/sprites/placeholders/cheese_seller.png":
	set(v):
		texture_path = v
		if Engine.is_editor_hint() and is_node_ready():
			_apply_billboard_look()
@export var fire_interval: float = 2.8
@export var cheese_speed: float = 7.0

var _alive: bool = true
var _timer: float = 0.0
var _grief: int = 0

@onready var _billboard: BillboardSprite = $BillboardSprite

func _ready() -> void:
	_apply_billboard_look()
	if Engine.is_editor_hint():
		set_process(false)
		return
	add_to_group("interactable")
	add_to_group("cheese_seller")
	_timer = randf() * fire_interval


func _apply_billboard_look() -> void:
	if _billboard == null:
		_billboard = get_node_or_null("BillboardSprite") as BillboardSprite
	if _billboard == null:
		return
	_billboard.set_target_height(SpriteFit.WORLD_PROP_HEIGHT)
	if texture_path != "" and ResourceLoader.exists(texture_path):
		var tex: Texture2D = load(texture_path)
		if tex:
			_billboard.set_texture(tex)

func _process(delta: float) -> void:
	if Engine.is_editor_hint() or not _alive:
		return
	_timer -= delta
	if _timer <= 0.0:
		_timer = fire_interval
		_fire()

func _fire() -> void:
	var player := get_tree().get_first_node_in_group("player")
	if player == null:
		return
	var proj_scene: PackedScene = load("res://scenes/prefabs/cheese_projectile.tscn")
	if proj_scene == null:
		return
	var proj: Node3D = proj_scene.instantiate()
	get_tree().current_scene.add_child(proj)
	proj.global_position = global_position + Vector3(0, 0.8, 0)
	var dir: Vector3 = (player.global_position + Vector3(0, 0.8, 0) - proj.global_position).normalized()
	proj.set("velocity", dir * cheese_speed)
	proj.add_to_group("cheese_projectile")
	proj.add_to_group("enemy")
	proj.set_meta("seller", self)

func notify_cheese_destroyed() -> void:
	_grief += 1
	if _grief >= 2:
		_alive = false
		var ui := get_node_or_null("/root/UIRoot")
		if ui and ui.has_method("show_dialog"):
			ui.show_dialog_key("dialog_cheese")
		queue_free()

func on_interact(_player: Node) -> void:
	var ui := get_node_or_null("/root/UIRoot")
	if ui and ui.has_method("show_dialog"):
		ui.show_dialog_key("dialog_cheese")

func take_hit(_amount: int = 1) -> void:
	## Hitting the seller does nothing useful (DESIGN).
	var ui := get_node_or_null("/root/UIRoot")
	if ui and ui.has_method("show_dialog"):
		ui.show_dialog_key("dialog_cheese")

func get_interact_prompt() -> String:
	return "%s — %s" % [Locale.tr_key("prompt_talk"), Locale.tr_key("dialog_cheese")]

func set_interaction_highlight(enabled: bool, color: Color = Color(1.4, 1.35, 0.4)) -> void:
	if _billboard and _billboard.has_method("set_highlight"):
		_billboard.set_highlight(enabled, color)