extends SceneTree
## 炸弹系统回归测试（时间驱动）：
## 初始 2 枚 → 引爆清敌清弹-1 → 用尽 → 空仓无效 → Boss 击破 +1
## → B 道具拾取 +1 → 上限 5
## 输入映射层：fire 含 J、bomb 含 K
## 运行：godot --headless -s tests/bomb_test.gd

const GLOBAL_TIMEOUT := 25.0

var _phase := 0
var _phase_time := 0.0
var _time := 0.0
var _game: Game
var _fails: Array[String] = []


func _initialize() -> void:
	_game = (load("res://scenes/game.tscn") as PackedScene).instantiate()
	root.add_child(_game)
	print("[bomb_test] game instantiated")


func _fail(msg: String) -> void:
	_fails.append(msg)
	print("[FAIL] " + msg)


func _next_phase() -> void:
	_phase += 1
	_phase_time = 0.0


func _finish() -> bool:
	if _fails.is_empty():
		print("[bomb_test] PASS")
	else:
		print("[bomb_test] FAIL: %d issue(s)" % _fails.size())
	quit(0 if _fails.is_empty() else 1)
	return true


## 输入映射检查（真实按键输入无法无头模拟，检查映射配置本身）
func _check_input_maps() -> void:
	var fire_ok := false
	if InputMap.has_action("fire"):
		for event in InputMap.action_get_events("fire"):
			if event is InputEventKey and (event as InputEventKey).physical_keycode == 74:
				fire_ok = true
	if not fire_ok:
		_fail("fire action missing J key")
	var bomb_ok := false
	if InputMap.has_action("bomb"):
		for event in InputMap.action_get_events("bomb"):
			if event is InputEventKey and (event as InputEventKey).physical_keycode == 75:
				bomb_ok = true
	if not bomb_ok:
		_fail("bomb action missing K key")


func _process(delta: float) -> bool:
	_time += delta
	if _time > GLOBAL_TIMEOUT:
		_fail("global timeout in phase %d" % _phase)
		return _finish()
	if _game._enemies == null:
		return false

	_phase_time += delta
	match _phase:
		0:
			_check_input_maps()
			if _game.player.bombs != 2:
				_fail("initial bombs=%d expected 2" % _game.player.bombs)
			# 场上放 3 架敌机 + 2 发敌弹
			for i in 3:
				var enemy := EnemySmall.new()
				enemy.setup(150.0 + 120.0 * i, 300.0 + 60.0 * i, 100.0)
				_game._enemies.add_child(enemy)
			for i in 2:
				var bullet := EnemyBullet.new()
				bullet.position = Vector2(120.0 + 200.0 * i, 400.0)
				_game._enemy_bullets.add_child(bullet)
			_game.player.use_bomb()
			_next_phase()
		1:
			# 首波 spawner 敌机 0.8s 后才出现，检查点在 0.5s 安全
			if _phase_time >= 0.5:
				var enemies_left := _game._enemies.get_child_count()
				var bullets_left := _game._enemy_bullets.get_child_count()
				if enemies_left != 0:
					_fail("bomb left enemies: %d" % enemies_left)
				if bullets_left != 0:
					_fail("bomb left enemy bullets: %d" % bullets_left)
				if _game.player.bombs != 1:
					_fail("bombs=%d expected 1" % _game.player.bombs)
				else:
					print("[bomb_test] detonate ok: enemies/bullets cleared, bombs 2->1, score=%d" % _game.score)
				_next_phase()
		2:
			_game.player.use_bomb()
			_next_phase()
		3:
			if _phase_time >= 0.3:
				if _game.player.bombs != 0:
					_fail("second bomb not consumed: %d" % _game.player.bombs)
				_game.player.use_bomb()  # 空仓
				_next_phase()
		4:
			if _phase_time >= 0.3:
				if _game.player.bombs != 0:
					_fail("empty stock still fired: %d" % _game.player.bombs)
				else:
					print("[bomb_test] stock drain + empty guard ok")
				var boss := _game.spawn_boss(1.0)
				boss.apply_damage(99999)
				_next_phase()
		5:
			if _phase_time >= 1.0:
				if _game.player.bombs != 1:
					_fail("boss kill did not grant bomb: %d" % _game.player.bombs)
				else:
					print("[bomb_test] boss kill +1 bomb ok")
				# B 道具拾取链路：1 → 2，再补到 5 验证上限
				_collect_bomb_pickup()
				_next_phase()
		6:
			if _phase_time >= 0.5:
				if _game.player.bombs != 2:
					_fail("B pickup did not add bomb: %d" % _game.player.bombs)
				else:
					print("[bomb_test] B pickup +1 ok")
				_collect_bomb_pickup()
				_collect_bomb_pickup()
				_collect_bomb_pickup()
				_collect_bomb_pickup()
				_next_phase()
		7:
			if _phase_time >= 0.5:
				if _game.player.bombs != 5:
					_fail("bomb cap broken: %d expected 5" % _game.player.bombs)
				else:
					print("[bomb_test] bomb cap at 5 ok")
				return _finish()
	return false


func _collect_bomb_pickup() -> void:
	var powerups := _game.get_node_or_null("Powerups") as Node2D
	var pickup := Powerup.new()
	pickup.kind = Powerup.Kind.BOMB
	pickup.position = _game.player.global_position
	powerups.add_child(pickup)
	# 直接触发玩家拾取路径（与 area_entered 信号同一入口）
	_game.player._collect_powerup(pickup)