extends SceneTree

var main: Node
var fleet: Node
var skill: Node
var elapsed := 0.0


func _initialize() -> void:
	var state: Node = root.get_node("GameState")
	state.buildings.clear()
	state.extractors.clear()
	state.transporters.clear()
	state.vessel_levels["unlock_gas_bomber"] = 1
	# #60: shots draw from the fleet hold now - stock enough for both fires.
	state.fleet_gas_cargo = 20
	main = load("res://world/Main.tscn").instantiate()
	root.add_child(main)
	fleet = main.get_node("Fleet")
	skill = main.get_node("GasBombController")


func _process(delta: float) -> bool:
	elapsed += delta
	if elapsed < 0.2:
		return false
	main.get_node("EnemySpawner").set_process(false)
	main.get_node("AsteroidField").set_process(false)
	# Asteroids take damage now, so anything the field already placed
	# would soak a bomb meant for the enemies under test.
	for hazard in get_nodes_in_group("asteroids"):
		if is_instance_valid(hazard):
			hazard.free()
	fleet.spawn_ships(2, Vector2.ZERO, PackedStringArray([
		GameState.VESSEL_GAS_BOMBER, GameState.VESSEL_GAS_BOMBER]))
	skill._process(0.0)
	var first: Node = fleet.ships[0].get_component("gas_bomber")
	var second: Node = fleet.ships[1].get_component("gas_bomber")
	if not first.is_ready() or not second.is_ready() or not skill.button.enabled:
		return _fail("two fresh bombers did not each begin ready")

	skill.aim_target = Vector2(500, 0)
	skill._fire()
	skill._process(0.0)
	if first.is_ready() or not second.is_ready() or not skill.button.enabled:
		return _fail("the first shot disabled more than its firing bomber")
	# _filled_hull returns a LIST of polygons: a notched hull fills as two
	# separate puddles until the level rises past the notch, and the gas
	# bomber's tail is exactly such a notch.
	var hull: PackedVector2Array = fleet.ships[0].definition.hull_points
	var empty: Array = first._filled_hull(hull, 0.0)
	var half: Array = first._filled_hull(hull, 0.5)
	var half_points: int = 0
	for piece in half:
		half_points += piece.size()
	if not empty.is_empty() or half_points < 3:
		return _fail("bomber cooldown did not produce an empty-to-filling hull")
	if skill.projectiles.size() != 1:
		return _fail("the first bomber did not launch exactly one projectile")

	skill.aim_target = Vector2(-500, 0)
	skill._fire()
	skill._process(0.0)
	if first.is_ready() or second.is_ready() or skill.button.enabled:
		return _fail("the skill stayed available after both bombers fired")
	if skill.projectiles.size() != 2:
		return _fail("independent bombers could not have shots in flight together")

	# Rearming one bomber restores one available shot without touching the
	# other bomber's cooldown.
	first.tick(5.0)  # matches GasBombController.COOLDOWN
	skill._process(0.0)
	if not first.is_ready() or second.is_ready() or not skill.button.enabled:
		return _fail("one completed cooldown did not restore exactly one shot")
	print("TEST_GAS_BOMBER_COOLDOWNS: PASS")
	quit(0)
	return true


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