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 question_bank_icon := selector.mode_view.find_child("QuestionBankIcon", true, false) as TextureRect
	_assert(question_bank_icon != null, "question bank should expose its mode icon")
	if question_bank_icon != null:
		_assert(question_bank_icon.texture.resource_path == "res://assets/icons/lucide/clipboard-list.svg", "question bank 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.screens.has("dashboard"), "the authenticated shell should include the dashboard screen")
	_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")
	var pause_menu_has_profile := false
	var pause_menu_has_settings := false
	for menu_button in main_screen.app_menu.find_children("*", "Button", true, false):
		if menu_button.text == "Profile":
			pause_menu_has_profile = true
		if menu_button.text == "Settings":
			pause_menu_has_settings = true
	_assert(pause_menu_has_profile and pause_menu_has_settings, "the paused-run menu should offer Profile and Settings navigation")
	_assert(main_screen.session_expiry_dialog != null, "the application shell should construct a global session-expiry prompt")
	main_screen.session_expiry_dialog._show_warning(120)
	_assert(main_screen.session_expiry_dialog.visible, "the session-expiry prompt should cover every authenticated screen")
	_assert(main_screen.session_expiry_dialog.message_label.text.contains("02:00"), "the session-expiry prompt should display a live countdown")
	main_screen.session_expiry_dialog._refresh_started()
	_assert(main_screen.session_expiry_dialog.stay_button.disabled, "the renewal action should lock while a refresh request is active")
	main_screen.session_expiry_dialog._refresh_failed("Connection interrupted.", false)
	_assert(not main_screen.session_expiry_dialog.stay_button.disabled, "a transient renewal failure should permit retry before expiry")
	var cancel_event := InputEventAction.new()
	cancel_event.action = "ui_cancel"
	cancel_event.pressed = true
	main_screen.session_expiry_dialog._unhandled_input(cancel_event)
	_assert(main_screen.session_expiry_dialog.visible, "the session-expiry prompt should not be dismissible with Escape")
	main_screen.session_expiry_dialog.dismiss_for_logout()
	_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")
	var profile_nav := main_screen.sidebar.find_child("NavPerformance", true, false) as Button
	var settings_nav := main_screen.sidebar.find_child("NavSettings", true, false) as Button
	var donation_nav := main_screen.sidebar.find_child("NavDonations", true, false) as Button
	_assert(donation_nav != null and donation_nav.text == "Support RanaZe", "the shell should expose donation navigation")
	_assert(profile_nav != null and settings_nav != null and profile_nav.get_index() + 1 == settings_nav.get_index(), "Profile should sit directly above Settings in the lower navigation group")
	var theme_service = root.get_node("UIThemeService")
	var prior_dark_mode: bool = theme_service.is_dark_mode()
	theme_service.set_dark_mode(true)
	await process_frame
	theme_service.set_dark_mode(false)
	await process_frame
	var dashboard = main_screen.screens.get("dashboard")
	var dashboard_card := dashboard.metric_grid.get_parent() as PanelContainer
	var dashboard_box := dashboard_card.get_theme_stylebox("panel") as StyleBoxFlat
	_assert(dashboard_box.bg_color.is_equal_approx(Color.WHITE), "dashboard cards should remain light after the shell refresh")
	var simulations = main_screen.screens.get("simulation_history")
	var simulation_box := simulations.active_section.get_theme_stylebox("panel") as StyleBoxFlat
	_assert(simulation_box.bg_color.is_equal_approx(simulations._section_box(false).bg_color), "exam simulation panels should remain light after the shell refresh")
	var notes_screen = main_screen.screens.get("notes")
	var notes_box := notes_screen.notes_editor.editor.get_theme_stylebox("normal") as StyleBoxFlat
	_assert(notes_box.bg_color.is_equal_approx(Color.WHITE), "the Notes editor should remain light after the shell refresh")
	theme_service.set_dark_mode(prior_dark_mode)
	await process_frame

	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)