extends SceneTree

# ChatUI 输入交互回归测试（无需 GUT）
#
# 运行方式（Godot 4.6）:
#   "D:\technology\biancheng\Godot_v4.6-stable_win64.exe\Godot_v4.6-stable_win64_console.exe" --headless --path . --script tests/unit/test_chat_ui_input_regressions.gd

var _failures: Array[String] = []

func _init() -> void:
	call_deferred("_run")

func _run() -> void:
	await _test_t_opens_enter_sends_outside_click_hides()

	if _failures.is_empty():
		print("PASS: test_chat_ui_input_regressions")
		quit(0)
		return

	for failure in _failures:
		push_error(failure)
	print("FAIL: test_chat_ui_input_regressions (%d)" % _failures.size())
	quit(1)

func _test_t_opens_enter_sends_outside_click_hides() -> void:
	var packed_scene: PackedScene = load("res://scenes/ui/ChatUI.tscn")
	_assert(packed_scene != null, "应能加载 ChatUI.tscn")
	if packed_scene == null:
		return

	var chat_ui = packed_scene.instantiate()
	root.add_child(chat_ui)
	await process_frame
	await process_frame

	var chat_panel = chat_ui.chat_panel
	var chat_input = chat_ui.chat_input

	_assert(not chat_panel.visible, "初始化时聊天框应隐藏")
	_assert(not chat_ui._is_chat_visible, "初始化时 _is_chat_visible 应为 false")

	var enter_event := InputEventKey.new()
	enter_event.pressed = true
	enter_event.keycode = KEY_ENTER
	chat_ui._input(enter_event)
	await process_frame
	_assert(not chat_panel.visible, "聊天框隐藏时按 Enter 不应唤起聊天框")

	var t_event := InputEventKey.new()
	t_event.pressed = true
	t_event.keycode = KEY_T
	chat_ui._input(t_event)
	await create_timer(0.7).timeout

	_assert(chat_panel.visible, "按 T 后聊天框应显示")
	_assert(chat_ui._is_chat_visible, "按 T 后 _is_chat_visible 应为 true")
	_assert(chat_input.has_focus(), "按 T 后输入框应获得焦点")

	chat_input.text = "hello world"
	chat_ui._on_chat_input_submitted(chat_input.text)
	await process_frame
	_assert(chat_input.text.is_empty(), "输入框有内容时按 Enter 应触发发送并清空输入框")
	_assert(chat_input.has_focus(), "按 Enter 发送后输入框应自动保持焦点，便于连续输入")

	# 将鼠标移动到左上角，通常在聊天框外
	var viewport := root.get_viewport()
	if viewport:
		viewport.warp_mouse(Vector2.ZERO)

	var mouse_event := InputEventMouseButton.new()
	mouse_event.button_index = MOUSE_BUTTON_LEFT
	mouse_event.pressed = true
	chat_ui._gui_input(mouse_event)
	await create_timer(0.7).timeout

	_assert(not chat_ui._is_chat_visible, "点击聊天框外部后 _is_chat_visible 应为 false")
	_assert(not chat_panel.visible, "点击聊天框外部后聊天框应隐藏")

	chat_ui.queue_free()
	await process_frame

func _assert(condition: bool, message: String) -> void:
	if not condition:
		_failures.append(message)