extends SceneTree
## Headless smoke test for Creator Studio Visual Property & Behavior Inspector

const FIXTURE_PATH := "res://backend/tests/fixtures/chunks/simple_tile_chunk.bin"
const ChunkEditorModelClass := preload("res://scripts/editor/chunk_editor_model.gd")
const EditorObjectCatalogClass := preload("res://scripts/editor/object_catalog.gd")
const EditorCoreClass := preload("res://scripts/editor/editor_core.gd")
const InspectorPanelClass := preload("res://scripts/editor/ui/inspector_panel.gd")
const StaticObjectNodeClass := preload("res://scripts/static_object_node.gd")
const WorldObjectClass := preload("res://scripts/world_object.gd")
const ChunkDataDecoderClass := preload("res://scripts/chunk_data_decoder.gd")

var passed := 0
var failed := 0

func _check(label: String, cond: bool) -> void:
	if cond:
		passed += 1
		print("  PASS: ", label)
	else:
		failed += 1
		printerr("  FAIL: ", label)


func _initialize() -> void:
	await _run()


func _read_fixture() -> PackedByteArray:
	var f := FileAccess.open(FIXTURE_PATH, FileAccess.READ)
	if f == null:
		push_error("Could not open fixture: " + FIXTURE_PATH)
		return PackedByteArray()
	return f.get_buffer(f.get_length())


func _run() -> void:
	print("=== Running Creator Studio Inspector & Behavior Smoke Tests ===")
	var root := Node.new()
	root.name = "TestRoot"
	get_root().add_child(root)

	var fixture_bytes := _read_fixture()
	_check("Loaded fixture binary bytes", fixture_bytes.size() > 0)
	if fixture_bytes.is_empty():
		quit(1)
		return

	var model := ChunkEditorModelClass.from_binary(fixture_bytes)
	_check("Decoded ChunkEditorModel from binary", model != null)

	var catalog := EditorObjectCatalogClass.new()
	var cat_err := catalog.load_catalog()
	_check("Loaded EditorObjectCatalog", cat_err == OK)

	var core := EditorCoreClass.new(model, catalog)
	_check("Initialized EditorCore", core != null)

	# 1. Place an object
	var obj_id := core.place_object("crate_small", Vector3(1.0, 1.0, 0.0))
	_check("Placed object via EditorCore", obj_id != "")
	var obj := model.find_object(obj_id)
	_check("Object found in model", obj != null)

	# 2. Attach and verify InspectorPanel
	var inspector := InspectorPanelClass.new()
	root.add_child(inspector)
	await process_frame
	inspector.setup(core)
	inspector.show_object(obj_id)
	_check("InspectorPanel loaded object view", true)

	# 3. Add behavior rules to object
	var test_behavior: Dictionary = {
		"rules": [
			{
				"trigger": {"type": "on_interact"},
				"conditions": [],
				"actions": [
					{"verb": "give_item", "item_id": "buffalo_chips", "count": 10}
				]
			},
			{
				"trigger": {"type": "on_timer", "interval": 1.5},
				"conditions": [],
				"actions": [
					{"verb": "rotate", "degrees": 90.0, "axis": "y", "duration": 0.4}
				]
			}
		]
	}
	var set_ok := core.set_object_behavior(obj_id, test_behavior)
	_check("set_object_behavior executed via ToolRegistry", set_ok)
	_check("Object properties has script_behavior", obj.properties.has("script_behavior"))
	var attached = obj.properties.get("script_behavior", {})
	_check("Attached behavior contains 2 rules", attached.get("rules", []).size() == 2)

	# 4. Undo and Redo verification
	var undo_ok := core.undo_redo.undo()
	_check("Undo executed successfully", undo_ok)
	_check("Undo cleared script_behavior property", not obj.properties.has("script_behavior"))

	var redo_ok := core.undo_redo.redo()
	_check("Redo executed successfully", redo_ok)
	_check("Redo restored script_behavior property", obj.properties.has("script_behavior"))
	_check("Redo preserved both rules", obj.properties.get("script_behavior", {}).get("rules", []).size() == 2)

	# 5. Roundtrip through Chunk binary encode/decode
	var re_encoded := model.encode_binary()
	_check("Model encoded to binary bytes with behavior", re_encoded.size() > 0)

	var re_decoded := ChunkDataDecoderClass.decode_binary(re_encoded)
	_check("Decoded re-encoded binary chunk", re_decoded != null)
	var persisted_obj: ChunkDataDecoderClass.WorldObjectData = null
	for o in re_decoded.objects:
		if o.id == obj_id:
			persisted_obj = o
			break
	_check("Persisted object found in binary decoded chunk", persisted_obj != null)
	_check("Persisted object retained script_behavior rules", persisted_obj.properties.has("script_behavior"))

	# 6. StaticObjectNode & ScriptInterpreterNode verification
	var wo := WorldObjectClass.new()
	wo.id = obj.id
	wo.type = obj.type
	wo.asset_id = obj.asset_id
	wo.position = obj.position
	wo.rotation = obj.rotation
	wo.scale = obj.scale
	wo.properties = obj.properties.duplicate(true)

	var static_node := StaticObjectNodeClass.new()
	static_node.world_object = wo
	root.add_child(static_node)
	await process_frame

	var interpreter := static_node.get_node_or_null("ScriptInterpreter")
	_check("StaticObjectNode created ScriptInterpreter child", interpreter != null)
	if interpreter != null:
		_check("ScriptInterpreter parsed valid behavior", interpreter.behavior != null)
		if interpreter.behavior != null:
			_check("ScriptInterpreter rules count is 2", interpreter.behavior.rules.size() == 2)

	# Refresh inspector display with rules
	inspector.show_object(obj_id)
	_check("Inspector refreshed object display", true)

	print("Smoke test complete. Passed: %d, Failed: %d" % [passed, failed])
	if failed > 0:
		quit(1)
	else:
		quit(0)