extends SceneTree
## Windowed smoke helper for the ADR-0007–0010 control pass (focus ring + action
## wheel). Boots the real main scene, stages one NPC in front of the guard, opens
## the wheel, and saves two PNGs to user://screenshots/. Exits 1 if the focus or
## radial state did not come up, so it can be used as a smoke check.
## Usage: godot --path . --script res://src/test/smoke_focus_radial.gd

const OUT_DIR := "user://screenshots"
const MAX_FRAMES := 1800
const STAGE_DISTANCE := 2.4

var frames := 0
var gm: Node = null
var state := 0
var state_frames := 0
var stage_npc: Node3D = null
var failures: Array[String] = []
var _shift_started := false

func _initialize() -> void:
	root.size = Vector2i(1280, 720)
	var packed: PackedScene = load("res://scenes/main.tscn")
	root.add_child(packed.instantiate())

## The game now boots into the venue menu, so the smoke starts a shift first.
func _start_shift_if_needed() -> void:
	if _shift_started or gm == null:
		return
	var menu = gm.get("start_menu")
	if menu != null and menu.visible:
		gm.call("_on_venue_selected", "hollywood_building")
		_shift_started = true
		print("smoke: started hollywood_building shift from the menu")

func _process(_delta: float) -> bool:
	frames += 1
	if gm == null:
		gm = root.find_child("GameManager", true, false)
		if gm == null:
			if frames > 600:
				_fail("GameManager not found")
			return false
	if frames > MAX_FRAMES:
		_fail("timeout before the radial state")
		return true
	_advance()
	return false

func _advance() -> void:
	state_frames += 1
	match state:
		0:
			_start_shift_if_needed()
			# Wait for the guard to settle on the ground, then grab one NPC.
			if state_frames >= 40 and gm.npcs.size() > 0:
				print("smoke: spawn guard_y=%.2f z=%.2f" % [
					(gm.guard.global_position as Vector3).y,
					(gm.guard.global_position as Vector3).z,
				])
				_shoot("smoke-00-spawn.png")
				stage_npc = gm.npcs[0]
				_hide_other_npcs(stage_npc)
				state = 1
				state_frames = 0
		1:
			# Keep the staged NPC in front of the guard so the ring is visible.
			_stage_target()
			if state_frames >= 20:
				gm.call("_cycle_nearby_target")
				if gm.targeted_npc == null:
					_fail("no NPC focused")
				elif gm.radial == null:
					_fail("radial layer missing")
				else:
					print("smoke: guard_y=%.2f npc_y=%.2f" % [
						(gm.guard.global_position as Vector3).y,
						(gm.targeted_npc.global_position as Vector3).y,
					])
					_shoot("smoke-01-focus-ring.png")
					gm.call("_open_radial")
				state = 2
				state_frames = 0
		2:
			if state_frames >= 20:
				if not gm.radial.is_open:
					_fail("action wheel did not open")
				else:
					_shoot("smoke-02-action-wheel.png")
					gm.call("_cancel_radial")
				state = 3
				state_frames = 0
		3:
			if state_frames >= 5:
				if gm.radial.is_open:
					_fail("action wheel did not close on cancel")
				_finish()

func _stage_target() -> void:
	if stage_npc == null or not is_instance_valid(stage_npc):
		stage_npc = gm.npcs[0] if gm.npcs.size() > 0 else null
	if stage_npc == null:
		return
	_hide_other_npcs(stage_npc)
	var guard_pos: Vector3 = gm.guard.global_position
	var forward: Vector3 = -gm.guard.global_transform.basis.z
	forward.y = 0.0
	forward = forward.normalized()
	stage_npc.global_position = guard_pos + forward * STAGE_DISTANCE + Vector3(0, 0.4, 0)
	stage_npc.rotation.y = gm.guard.rotation.y + PI

func _hide_other_npcs(keep: Node3D) -> void:
	for npc in gm.npcs:
		if is_instance_valid(npc) and npc is Node3D and npc != keep:
			(npc as Node3D).visible = false

func _shoot(file_name: String) -> void:
	var dir := DirAccess.open("user://")
	if dir == null or not dir.dir_exists("screenshots"):
		dir.make_dir_recursive("screenshots")
	var img: Image = root.get_texture().get_image()
	var err: int = img.save_png(OUT_DIR.path_join(file_name))
	print("%s -> err=%d (%dx%d)" % [file_name, err, img.get_width(), img.get_height()])

func _fail(message: String) -> void:
	failures.append(message)
	_finish()

func _finish() -> void:
	if failures.is_empty():
		print("SMOKE OK: focus ring + action wheel opened and cancelled")
		quit(0)
	else:
		for message in failures:
			printerr("SMOKE FAIL: " + message)
		quit(1)