extends Node3D
## Spike T-1089 Synty intake — Godot QA scene (THROWAWAY, lives in
## client/spike_synty_qa/ only for the res:// path; source of truth is
## spikes/synty-intake/scripts/qa_scene.gd).
##
## Builds a CharacterVisual (average_m + peasant pants/shoes), reparents the
## transplanted Synty torso garment onto its skeleton (mirrors
## character_visual.gd:517-535), plays Walk, saves screenshots to
## spikes/synty-intake/out/qa/, then quits.

const GARMENT_GLB := "res://spike_synty_qa/SK_SCFI_CIVL_09_10TORS_HU01_quaternius.glb"
const SHOT_DIR := "/var/mnt/data/projects/settled-reach/spikes/synty-intake/out/qa/"

var _cv: CharacterVisual = null
var _cam: Camera3D = null
var _garment_meshes: Array[MeshInstance3D] = []


func _ready() -> void:
	_setup_stage()
	_cv = CharacterVisual.new()
	add_child(_cv)

	var desc := CharacterVisualDescriptor.new()
	desc.body_type = CharacterVisualDescriptor.BodyType.AVERAGE_M
	desc.head_id = "head_001"
	desc.hair_id = "buzzed"
	desc.eyebrow_id = "regular"
	desc.skin_tone = 3
	desc.clothing_slots = {"legs": "peasant_pants", "feet": "peasant_shoes"}
	_cv.load_descriptor(desc)

	var skel := _cv.get_skeleton()
	print("QA: skeleton bones = ", skel.get_bone_count() if skel else -1)

	_attach_garment(skel)
	_run_qa.call_deferred()


func _setup_stage() -> void:
	var light := DirectionalLight3D.new()
	light.rotation_degrees = Vector3(-45, 30, 0)
	light.light_energy = 1.2
	add_child(light)

	var env := Environment.new()
	env.ambient_light_source = Environment.AMBIENT_SOURCE_COLOR
	env.ambient_light_color = Color(0.8, 0.8, 0.85)
	env.ambient_light_energy = 0.9
	env.background_mode = Environment.BG_COLOR
	env.background_color = Color(0.18, 0.19, 0.22)
	var we := WorldEnvironment.new()
	we.environment = env
	add_child(we)

	_cam = Camera3D.new()
	add_child(_cam)
	_set_cam_front()


func _set_cam_front() -> void:
	_cam.position = Vector3(0, 1.25, 1.4)
	_cam.look_at_from_position(_cam.position, Vector3(0, 1.15, 0), Vector3.UP)


func _set_cam_side() -> void:
	_cam.position = Vector3(1.4, 1.25, 0)
	_cam.look_at_from_position(_cam.position, Vector3(0, 1.15, 0), Vector3.UP)


func _set_cam_back() -> void:
	_cam.position = Vector3(0, 1.25, -1.4)
	_cam.look_at_from_position(_cam.position, Vector3(0, 1.15, 0), Vector3.UP)


func _attach_garment(skel: Skeleton3D) -> void:
	# Mirror character_visual.gd:517-535 — reparent skinned meshes onto OUR
	# skeleton; matching bone names in the Skin resource drive them.
	var scene := load(GARMENT_GLB) as PackedScene
	if scene == null:
		push_error("QA: garment GLB failed to load: " + GARMENT_GLB)
		return
	var inst := scene.instantiate()
	var stack: Array[Node] = [inst]
	while not stack.is_empty():
		var n: Node = stack.pop_back()
		for c in n.get_children():
			stack.append(c)
		if n is MeshInstance3D and (n as MeshInstance3D).skin != null:
			var mi := n as MeshInstance3D
			mi.get_parent().remove_child(mi)
			mi.owner = null
			skel.add_child(mi)
			_garment_meshes.append(mi)
	inst.queue_free()
	print("QA: garment skinned meshes attached = ", _garment_meshes.size())
	for mi in _garment_meshes:
		print("QA: garment mesh '", mi.name, "' skin binds = ", mi.skin.get_bind_count())


func _shot(fname: String) -> void:
	await RenderingServer.frame_post_draw
	var img := get_viewport().get_texture().get_image()
	img.save_png(SHOT_DIR + fname)
	print("QA: saved ", fname)


func _wait_frames(n: int) -> void:
	for i in n:
		await get_tree().process_frame


func _run_qa() -> void:
	await _wait_frames(5)

	# report garment AABB sanity (explosion check)
	for mi in _garment_meshes:
		print("QA: garment local AABB = ", mi.get_aabb())

	# --- idle ---
	await _shot("01_idle_front.png")
	_set_cam_side()
	await _shot("02_idle_side.png")
	_set_cam_back()
	await _shot("02b_idle_back.png")

	# --- walk ---
	var ap := _cv.get_animation_player()
	var names: Array[String] = []
	if ap:
		for lib_name in ap.get_animation_library_list():
			var lib := ap.get_animation_library(lib_name)
			for a in lib.get_animation_list():
				names.append(str(lib_name) + "/" + str(a))
	print("QA: animations = ", names)

	var walk := ""
	for n in names:
		if n.to_lower().contains("walk"):
			walk = n.get_slice("/", 1)
			if n.to_lower().ends_with("/walk"):
				break
	if walk == "":
		push_warning("QA: no walk animation found — staying on idle")
	else:
		print("QA: playing '", walk, "'")
		_cv.play_animation(walk)

	# mid-stride frames at two phases, front + side
	await _wait_frames(24)
	_set_cam_front()
	await _shot("03_walk_front_a.png")
	_set_cam_side()
	await _shot("04_walk_side_a.png")
	await _wait_frames(14)
	await _shot("05_walk_side_b.png")
	_set_cam_front()
	await _shot("06_walk_front_b.png")
	_set_cam_back()
	await _wait_frames(10)
	await _shot("07_walk_back.png")

	for mi in _garment_meshes:
		print("QA: post-walk garment local AABB = ", mi.get_aabb())

	print("QA: DONE")
	get_tree().quit(0)