extends Node
const GAME := preload("res://scenes/game/game.tscn")

func _ready() -> void:
	GameState.start_new_run()
	GameState.system_seed = 314159
	var game := GAME.instantiate()
	assert(game.BOSS_SPAWN_DISTANCE >= 1800.0)
	add_child(game)
	game.set_physics_process(false)
	var player: CharacterBody2D = game.get_node("PlayerShip")
	player.set_physics_process(false)
	player.get_node("WeaponController").set_physics_process(false)
	var enemies: Array[Node] = []
	for enemy in get_tree().get_nodes_in_group("enemies"):
		if game.is_ancestor_of(enemy):
			assert(enemy.loot_tier != 2)
			enemy.set_physics_process(false)
			enemies.append(enemy)
	assert(enemies.size() == 4)
	assert(not game.is_boss_alive())
	for index in enemies.size() - 1:
		enemies[index].take_damage(100000.0)
	game._physics_process(0.0)
	assert(game.get_remaining_enemies() == 1 and not game._boss_spawned)
	# Spawn positions remain clear and at the same distance near map edges.
	for position in [Vector2.ZERO, Vector2(2500, 1700), Vector2(-2500, 1700), Vector2(2500, -1700), Vector2(-2500, -1700)]:
		player.position = position
		var candidate: Vector2 = game._find_boss_spawn_position()
		assert(is_equal_approx(candidate.distance_to(position), game.BOSS_SPAWN_DISTANCE))
		assert(absf(candidate.x) <= game.WORLD_SIZE.x * 0.5 - game.BOSS_SPAWN_MARGIN)
		assert(absf(candidate.y) <= game.WORLD_SIZE.y * 0.5 - game.BOSS_SPAWN_MARGIN)
		assert(candidate.length() >= 300.0)
		for planet in game.system_data["planets"]:
			assert(candidate.distance_to(planet["position"]) >= planet["radius"] + 130.0)
	player.position = Vector2(700, 500)
	enemies.back().take_damage(100000.0)
	player.set("_is_destroyed", true)
	game._physics_process(0.0)
	assert(not game._boss_spawned)
	player.set("_is_destroyed", false)
	game._physics_process(0.0)
	assert(game._boss_spawned and game.get_remaining_enemies() == 1)
	assert(game.is_boss_alive())
	assert(not game.system_cleared and not game.services_menu.visible)
	var boss: CharacterBody2D
	for enemy in get_tree().get_nodes_in_group("enemies"):
		if game.is_ancestor_of(enemy) and enemy.loot_tier == 2:
			assert(boss == null)
			boss = enemy
	assert(boss != null)
	boss.set_physics_process(false)
	assert(is_equal_approx(boss.position.distance_to(player.position), game.BOSS_SPAWN_DISTANCE))
	game._physics_process(0.0)
	assert(game.get_remaining_enemies() == 1)
	assert(not game.open_wormhole())
	boss.take_damage(100000.0)
	game._physics_process(0.0)
	assert(game.system_cleared and game.get_remaining_enemies() == 0)
	assert(not game.is_boss_alive())
	game._physics_process(0.0)
	assert(game.get_remaining_enemies() == 0)
	for definition in preload("res://scripts/items/item_generator.gd").DEFINITIONS:
		var category_index := ShipInventory.MODULE_CATEGORIES.find(definition.category)
		if category_index >= 0:
			assert(definition.display_name == ShipInventory.MODULE_NAMES[category_index])
	print("BOSS_SPAWN_TEST: PASS delayed boss, elites, no early completion, distance, safe placement, single spawn, dead player, item names")
	get_tree().quit()