extends Node
var failures := 0
func check(ok: bool, message: String) -> void:
	if not ok:
		failures += 1
		push_error(message)
func _ready() -> void:
	GameState.save_locked = true
	call_deferred("run")
func deposit(restaurant: Node) -> void:
	var plate: Dish = load("res://scenes/restaurant/dish.tscn").instantiate()
	plate.state = Dish.State.DIRTY
	restaurant.add_child(plate)
	plate.pick_up(restaurant.player)
	restaurant.handle_interaction("dishwasher")
func run() -> void:
	GameState._reset_progress_state()
	GameState.restaurant_washing = {}
	var restaurant = load("res://scenes/restaurant/restaurant.tscn").instantiate()
	add_child(restaurant)
	await get_tree().process_frame
	restaurant.set_process(false)
	for plate in get_tree().get_nodes_in_group("dish"):
		plate.free()
	restaurant.player.held_dish = null
	for station: Dictionary in restaurant.stations:
		station.remaining = 0.0
		station.recipe = ""
	GameState.add_modifier("test:wash-capacity", "plates", "override", 1.0, 0.0, "set")
	GameState.add_modifier("test:wash-capacity", "wash_lines", "override", 1.0, 0.0, "set")
	var cycle: float = restaurant.wash_duration()
	deposit(restaurant)
	check(restaurant._plates_in_use() == 1, "washing plate remains occupied immediately")
	await get_tree().process_frame
	check(restaurant._plates_in_use() == 1, "washing plate remains occupied after node deletion")
	check(restaurant._plates_in_use() >= restaurant.get_plate_capacity(), "last washing plate blocks oven capacity")
	restaurant._advance_washing(cycle * 0.8)
	check(restaurant._plates_in_use() == 1, "plate unavailable before completion")
	restaurant._advance_washing(cycle * 0.2)
	check(restaurant._plates_in_use() == 0, "plate returned exactly at completion")
	for i in 4:
		deposit(restaurant)
	check(restaurant.wash_running.size() == 1 and restaurant.wash_queue == 3, "one line queues additional plates")
	check(restaurant._plates_in_use() == 4, "running and queued plates are occupied")
	GameState.remove_modifiers_by_source("test:wash-capacity")
	GameState.add_modifier("test:wash-capacity", "wash_lines", "flat", 2.0)
	restaurant._advance_washing(0.0)
	check(restaurant.wash_running.size() == 3 and restaurant.wash_queue == 1, "upgrade starts two queued plates immediately")
	check(restaurant.washing_progress_lines().size() == 3, "three independent progress bars")
	restaurant._advance_washing(cycle * 0.4)
	var payload := GameState._build_save_payload()
	check(payload.restaurant_washing.running.size() == 3 and payload.restaurant_washing.queue == 1, "save contains all occupied washing plates")
	var progress: float = restaurant.wash_running[0].remaining
	restaurant._persist_room()
	restaurant.queue_free()
	await get_tree().process_frame
	# Exercise the actual JSON load path, not just the in-memory scene return.
	GameState.restaurant_washing = {}
	GameState._apply_save_payload(JSON.parse_string(JSON.stringify(payload)))
	check(GameState.restaurant_washing.running.size() == 3, "save load restores washing state")
	var restored = load("res://scenes/restaurant/restaurant.tscn").instantiate()
	add_child(restored)
	restored.set_process(false)
	check(restored.wash_running.size() == 3 and restored.wash_queue == 1, "scene return restores parallel washing and queue")
	check(is_equal_approx(restored.wash_running[0].remaining, progress), "scene return preserves elapsed cycle")
	restored._advance_washing(cycle * 0.6)
	check(restored._plates_in_use() == 1 and restored.wash_running.size() == 1, "three completed plates free up while fourth starts")
	restored._advance_washing(cycle)
	check(restored._plates_in_use() == 0, "last queued plate eventually returns")
	GameState.add_modifier("test:wash-capacity", "wash_lines", "flat", 20.0)
	check(restored.wash_line_count() == 3, "maximum three lines")
	GameState.remove_modifiers_by_source("test:wash-capacity")
	restored.queue_free()
	await get_tree().process_frame
	print("WASHING CAPACITY: ", "PASSED" if failures == 0 else "FAILED")
	get_tree().quit(0 if failures == 0 else 1)