extends SceneTree

# A ship crafter offers what can actually be ordered there, and nothing else.
#
# Two rules:
#   - a hull whose research is not done is not on offer (it never was
#     orderable; it was drawn greyed, which is a row that says nothing the
#     absence does not)
#   - a support vessel needs the structure that USES it. #216 made
#     transporters and repair drones ordinary craft, and one with no hub or
#     no workshop has nowhere to be assigned - it would sit in the hangar as
#     spent resources.
#
# Covers:
#   A. with no hub and no workshop, neither support craft can be ordered
#   B. building a hub offers the transporter, and only the transporter
#   C. building a workshop offers the drone
#   D. the model refuses the order too, not just the menu
#   E. an unresearched fleet hull is not on offer either

var state: Node
var crafter_id: int


func _initialize() -> void:
	state = root.get_node("GameState")
	state.buildings.clear()
	state.extractors.clear()
	state.transporters.clear()
	state.repair_drones.clear()
	state.reset_progression()
	state.rocks = 900
	state.unlocked = ["shipyards", "logistics", "freight"]
	crafter_id = state.add_building(state.BUILDING_SHIP_CRAFTER, Vector2(400.0, 0.0))


func _process(_delta: float) -> bool:
	# --- A. nothing to assign them to, so nothing on offer ------------
	if state.vessel_can_be_crafted(GameState.VESSEL_TRANSPORTER):
		return _fail("a transporter is orderable with no hub to put it in")
	if state.vessel_can_be_crafted(GameState.REPAIR_DRONE):
		return _fail("a repair drone is orderable with no workshop to put it in")
	# --- D. and the model refuses, not merely the menu ----------------
	if state.queue_order(crafter_id, GameState.VESSEL_TRANSPORTER):
		return _fail("the crafter queued a transporter with nowhere to send it")
	print("no hub, no workshop: neither support craft is on offer")

	# --- B. a hub offers the transporter ------------------------------
	var hub_id: int = state.add_building(state.BUILDING_TRANSPORT_HUB, Vector2(900.0, 0.0))
	if not state.vessel_can_be_crafted(GameState.VESSEL_TRANSPORTER):
		return _fail("a hub is standing and the transporter is still not orderable")
	if state.vessel_can_be_crafted(GameState.REPAIR_DRONE):
		return _fail("a transport hub made the repair drone orderable")
	if not state.queue_order(crafter_id, GameState.VESSEL_TRANSPORTER):
		return _fail("the crafter refused a transporter with a hub standing")
	state.find_building(crafter_id).orders.clear()
	print("a hub offers the transporter, and only that")

	# --- C. and a workshop the drone ----------------------------------
	state.add_building(GameState.BUILDING_WORKSHOP, Vector2(-900.0, 0.0))
	if not state.vessel_can_be_crafted(GameState.REPAIR_DRONE):
		return _fail("a workshop is standing and the drone is still not orderable")
	print("a workshop offers the repair drone")

	# Taking the hub away takes the offer with it - there is nowhere to
	# assign one again.
	state.remove_buildings_of_type(state.BUILDING_TRANSPORT_HUB)
	if state.vessel_can_be_crafted(GameState.VESSEL_TRANSPORTER):
		return _fail("the last hub came down and the transporter is still on offer")
	print("the last hub down: the transporter is off the menu again")

	# --- E. an unresearched hull is not on offer ----------------------
	var locked: String = ""
	for definition in load("res://vessels/VesselDefinitions.gd").fleet():
		if not state.vessel_is_unlocked(String(definition.definition_id)):
			locked = String(definition.definition_id)
			break
	if locked == "":
		return _fail("every fleet hull is already unlocked, so this proves nothing")
	if state.vessel_can_be_crafted(locked):
		return _fail("'%s' is unresearched and still on offer" % locked)
	print("an unresearched hull ('%s') is not on offer" % locked)

	print("TEST_CRAFTER_AVAILABILITY: PASS")
	quit(0)
	return true


func _fail(message: String) -> bool:
	print("TEST_CRAFTER_AVAILABILITY: FAIL (%s)" % message)
	quit(1)
	return true