extends SceneTree

var failures := 0


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


func _run() -> void:
	var host := Control.new()
	host.size = Vector2(240, 720)
	root.add_child(host)
	var selector = load("res://scripts/ui/study_selector.gd").new()
	selector.size = host.size
	host.add_child(selector)
	await process_frame
	selector._show_stage("step3")
	selector._refresh_grid_columns()
	await process_frame

	_assert(selector.stage_scroll != null, "study selection should scroll vertically on short web viewports")
	_assert(selector.stage_scroll.horizontal_scroll_mode == ScrollContainer.SCROLL_MODE_DISABLED, "study selection should never introduce horizontal scrolling")
	_assert(selector.mode_grid.columns == 1, "phone-width mode cards should use one column")
	_assert(selector.stage_content.get_combined_minimum_size().x <= host.size.x, "phone-width study content should fit inside the web canvas (minimum %.1f px)" % selector.stage_content.get_combined_minimum_size().x)
	for card in selector.responsive_cards:
		_assert(card.custom_minimum_size.x == 0.0, "phone-width cards should release their desktop minimum width")
	for row in selector.responsive_card_rows:
		_assert(row.vertical, "phone-width card content should stack instead of clipping")
	_assert(selector.mode_view.find_children("*", "RichTextLabel", true, false).is_empty(), "study modes should not render the legacy rich-text simulation note")
	var dynamic_icon := selector.mode_view.find_child("DynamicQuestionsIcon", true, false) as TextureRect
	_assert(dynamic_icon != null, "dynamic questions should expose its mode icon")
	if dynamic_icon != null:
		_assert(dynamic_icon.texture.resource_path == "res://assets/icons/lucide/activity.svg", "dynamic questions should use a web-safe vector icon")
	selector._show_stage("question_bank")
	await process_frame
	_assert(selector.question_bank_launch_view.visible and not selector.mode_view.visible, "direct question bank navigation should show only the focused launch state")
	_assert(selector.launch_retry_button != null and selector.launch_error_label != null, "question bank launch should retain retry and error controls")

	var main_screen = load("res://scripts/ui/main.gd").new()
	main_screen.size = host.size
	host.add_child(main_screen)
	await process_frame
	main_screen._update_responsive_layout()
	_assert(main_screen.theme_button.custom_minimum_size == Vector2(44, 44), "the theme toggle should keep a stable square footprint")
	_assert(main_screen.theme_button.size.x >= 44.0 and main_screen.theme_button.size.y >= 44.0, "the theme toggle should not collapse into an oval")
	_assert(main_screen.theme_button.icon_alignment == HORIZONTAL_ALIGNMENT_CENTER, "the theme toggle icon should remain centered")
	_assert(main_screen.theme_button.get_index() < main_screen.account_button.get_index(), "the theme toggle should appear before the account dropdown")
	_assert(main_screen.account_chevron_button.get_index() == main_screen.account_button.get_index() + 1, "the account avatar and chevron should remain adjacent")
	_assert(main_screen.header_panel.find_child("HeaderStats", true, false) == null, "the application header should not display rating or role labels")
	_assert(not main_screen.account_chevron_button.visible, "nonessential account controls should collapse on phone-width headers")
	var question_bank_nav := main_screen.sidebar.find_child("NavQuestionBank", true, false) as Button
	_assert(question_bank_nav != null and question_bank_nav.text == "Question Bank", "the Practice navigation item should be replaced by Question Bank")
	_assert(main_screen.sidebar.find_child("NavPractice", true, false) == null, "the sidebar should not retain a Practice navigation item")

	host.queue_free()
	await process_frame
	quit(1 if failures > 0 else 0)


func _assert(condition: bool, message: String) -> void:
	if condition:
		return
	failures += 1
	push_error(message)