extends SceneTree

var state: Node
var scene: Node
var fleet: Node
var controller: Node
var planet: Node2D
var extractor_index: int = -1
var resource_type: String
var stage: int = 0
var elapsed: float = 0.0


func _initialize() -> void:
	state = root.get_node("GameState")
	state.extractors.clear()
	state.transporters.clear()
	state.fleet_cargo = 0
	state.fleet_gas_cargo = 0
	scene = load("res://Main.tscn").instantiate()
	root.add_child(scene)
	fleet = scene.get_node("Fleet")
	controller = scene.get_node("BuildController")


func _process(delta: float) -> bool:
	elapsed += delta
	match stage:
		0:
			scene.get_node("AsteroidField").set_process(false)
			scene.get_node("EnemySpawner").set_process(false)
			for planets in scene.get_node("PlanetField").populated_chunks.values():
				if not planets.is_empty() and is_instance_valid(planets[0]):
					planet = planets[0]
					break
			if planet == null:
				return _fail("no nearby generated planet available")
			resource_type = planet.resource_type
			state.add_extractor(planet.planet_name, planet.position, resource_type, planet.planet_id)
			extractor_index = state.extractors.size() - 1
			state.extractors[extractor_index].inventory.deposit(resource_type, 12)
			for ship in fleet.ships:
				ship.position = planet.position
			fleet.move_to(planet.position)
			elapsed = 0.0
			stage = 1
			return false
		1:
			if elapsed < 1.2:
				return false
			if controller.current_extractor_index != extractor_index or not controller.transfer_button.visible:
				return _fail("extractor did not expose the transfer shortcut")
			if not controller.action_button.visible \
					or controller.action_button.icon != controller.landing_button.icon \
					or controller.landing_button.visible:
				return _fail("landing was not folded into the shared action control")
			controller._on_transfer_pressed()
			if not controller.transfer_menu.visible or controller.transfer_list.extractor_index != extractor_index:
				return _fail("transfer panel did not bind to the extractor")
			var before: int = state.fleet_resource(resource_type)
			controller._on_resource_transfer(resource_type, false, 5)
			if state.fleet_resource(resource_type) != before + 5:
				return _fail("fleet did not fetch five resources from extractor")
			if state.extractor_resource(extractor_index, resource_type) < 7:
				return _fail("extractor transfer removed too much stock")
			print("fleet fetched %s while landing remained the contextual action" % resource_type)
			print("TEST_EXTRACTOR_TRANSFER: PASS")
			quit(0)
			return true
	return false


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