extends SceneTree

const VESSEL_DEFINITIONS = preload("res://VesselDefinitions.gd")

var ships: Array = []
var elapsed: float = 0.0
var game_state: Node


func _initialize() -> void:
	game_state = root.get_node("GameState")
	var scene: PackedScene = load("res://Ship.tscn")
	for definition in VESSEL_DEFINITIONS.all():
		var ship: Area2D = scene.instantiate()
		ship.vessel_type = definition.definition_id
		root.add_child(ship)
		ships.append(ship)


func _process(delta: float) -> bool:
	elapsed += delta
	if elapsed < 0.1:
		return false
	var definitions: Array = VESSEL_DEFINITIONS.all()
	var fleet_definitions: Array = VESSEL_DEFINITIONS.fleet()
	if fleet_definitions.size() != 3 \
			or fleet_definitions.any(func(definition): return definition.has_capability("transport")):
		return _fail("logistics transporters leaked into the combat-fleet catalog")
	if ships.size() != definitions.size():
		return _fail("catalog and composed fleet differ in size")
	for i in range(definitions.size()):
		var definition: Resource = definitions[i]
		var ship: Node = ships[i]
		if ship.definition == null or ship.definition.definition_id != definition.definition_id:
			return _fail("%s did not resolve its definition" % definition.definition_id)
		for capability in definition.capabilities:
			if not ship.has_capability(capability):
				return _fail("%s did not compose %s" % [definition.definition_id, capability])
		if game_state.product_cost(definition.definition_id) != definition.build_cost \
				or game_state.vessel_name(definition.definition_id) != definition.display_name:
			return _fail("%s metadata did not come from its definition" % definition.definition_id)
	if ships[0].has_capability("shield") or not ships[1].has_capability("shield"):
		return _fail("shield behavior is not controlled by component presence")
	if (ships[1].has_capability("weapon")
			or definitions[1].hull_points.size() != 6
			or definitions[1].icon != IconButton.Icon.SHIELD_VESSEL):
		return _fail("shield vessel is not an unarmed hexagon")
	var gas_index: int = VESSEL_DEFINITIONS.ORDER.find(GameState.VESSEL_GAS_BOMBER)
	if gas_index < 0 or ships[gas_index].has_capability("weapon") \
			or not ships[gas_index].definition.has_capability("gas_bomber"):
		return _fail("gas bomber is not an unarmed skill vessel")
	var transporter_index: int = VESSEL_DEFINITIONS.ORDER.find(GameState.VESSEL_TRANSPORTER)
	if ships[transporter_index].has_capability("weapon") \
			or not ships[transporter_index].has_capability("transport"):
		return _fail("transporter capabilities were composed incorrectly")
	print("TEST_VESSEL_COMPOSITION: PASS")
	quit(0)
	return true


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