extends SceneTree


func _initialize() -> void:
	var state: Node = root.get_node("GameState")
	state.buildings.clear()
	state.extractors.clear()
	state.transporters.clear()
	state.stored_vessels.clear()
	state.reset_progression()
	state.rocks = 0
	state.gas = 10
	state.build_time_scale = 0.01

	state.add_building(GameState.BUILDING_MOTHERSHIP, Vector2.ZERO)
	state.add_building(GameState.BUILDING_TRANSPORT_HUB, Vector2.ZERO)
	var lab_id: int = state.add_building(GameState.BUILDING_SHIP_LAB, Vector2(120, 0))
	if not state.queue_lab_research(lab_id, "unlock_gas_bomber"):
		_fail("could not queue gas research")
		return
	# Reproduce a first 20-unit delivery followed by the remaining 10 being
	# available at the mothership. Full extractors must not take priority over
	# completing this already-partly-supplied research order.
	state.deposit_resource_to_building(lab_id, GameState.RESOURCE_GAS, 20)
	state.add_extractor("Ore A", Vector2(240, 0), GameState.RESOURCE_ORE)
	state.add_extractor("Ore B", Vector2(360, 0), GameState.RESOURCE_ORE)
	for extractor in state.extractors:
		extractor.inventory.deposit(GameState.RESOURCE_ORE, state.transporter_load_limit())
	if state.outstanding_resource_cost(lab_id, GameState.RESOURCE_GAS) != 10:
		_fail("partly supplied lab did not request its remaining 10 gas")
		return
	state._dispatch_transporters()
	if not state._transporter_inbound_to(lab_id):
		_fail("extractor collection took priority over waiting research")
		return

	# Large steps make each physical leg complete in one call; multiple calls
	# still exercise dispatch -> bank pickup -> lab delivery -> hub return.
	for i in range(12):
		state._advance_transporters(10.0)
		state._advance_lab_research(10.0)
	if not state.vessel_is_unlocked(GameState.VESSEL_GAS_BOMBER):
		_fail("hub transporters did not deliver gas to research")
		return
	if state.gas != 0 or state.building_resource(lab_id, GameState.RESOURCE_GAS) != 0:
		_fail("gas was not consumed at the lab")
		return
	print("TEST_MULTI_RESOURCE_SUPPLY: PASS")
	quit(0)


func _fail(message: String) -> void:
	print("TEST_MULTI_RESOURCE_SUPPLY: FAIL (%s)" % message)
	quit(1)