extends VBoxContainer

const Brand := preload("res://scripts/ui/medmind_style.gd")
const ICON_STETHOSCOPE := preload("res://assets/icons/lucide/stethoscope.svg")
const ICON_CLIPBOARD := preload("res://assets/icons/lucide/clipboard-plus.svg")
const ICON_CLOCK := preload("res://assets/icons/lucide/clock-3.svg")
const ICON_LOCATION := preload("res://assets/icons/lucide/house.svg")
const ICON_SEARCH := preload("res://assets/icons/lucide/search.svg")
const RESPONSIVE_BREAKPOINT := 1050.0
const CHART_TABS := [
	["Order Sheet", "orders"],
	["Progress Notes", "progress"],
	["Vital Signs", "vitals"],
	["Lab Reports", "lab"],
	["Imaging", "imaging"],
	["Other Tests", "other_test"],
	["Treatment Record", "treatment"]
]

var main: Control
var header_panel: PanelContainer
var header_layout: BoxContainer
var heading: Label
var allotted_label: Label
var toolbar: HFlowContainer
var theme_button: Button
var exit_button: Button
var abandon_button: Button
var action_grid: GridContainer
var action_buttons: Array[Button] = []
var workspace: PanelContainer
var chart_panel: PanelContainer
var clerk_panel: PanelContainer
var tabs: TabContainer
var chart_views := {}
var order_sheet: VBoxContainer
var active_orders: VBoxContainer
var search: LineEdit
var search_button: Button
var search_results: VBoxContainer
var staged_orders: VBoxContainer
var commit_orders_button: Button
var clear_orders_button: Button
var final_orders_notice: Label
var simulated_clock: Label
var elapsed_clock: Label
var remaining_clock: Label
var status: Label
var timer: Timer
var report_dialog: Control

var intro_dialog: AcceptDialog
var intro_title: Label
var intro_body: RichTextLabel
var opening_step := 0
var opening_active := false

var exam_dialog: ConfirmationDialog
var interval_history_check: CheckBox
var exam_checks := {}
var exam_summary_dialog: ConfirmationDialog
var exam_summary: RichTextLabel
var staged_exam_codes: Array[String] = []
var staged_interval_history := false
var awaiting_exam_result := false
var findings_dialog: AcceptDialog
var findings_body: RichTextLabel

var time_dialog: ConfirmationDialog
var time_preset: OptionButton
var custom_target: LineEdit
var time_preview: Label
var location_dialog: ConfirmationDialog
var location_option: OptionButton
var end_dialog: ConfirmationDialog
var final_instructions: AcceptDialog
var abandon_dialog: ConfirmationDialog

var staged_order_codes: Array[String] = []
var staged_order_names := {}
var pending_findings_before := 0
var leaving := false
var theme_service
var toolbar_buttons: Array[Button] = []
var clinical_labels: Array[RichTextLabel] = []


func _ready() -> void:
	theme_service = get_node("/root/UIThemeService")
	set_anchors_preset(Control.PRESET_FULL_RECT)
	add_theme_constant_override("separation", 8)
	_build_header()
	_build_actions()
	_build_workspace()
	_build_footer()
	_build_dialogs()
	_build_runtime_services()
	resized.connect(_update_responsive_layout)
	if not theme_service.theme_changed.is_connected(_on_theme_changed):
		theme_service.theme_changed.connect(_on_theme_changed)
	if not CCSService.text_scale_changed.is_connected(_apply_text_scale):
		CCSService.text_scale_changed.connect(_apply_text_scale)
	_apply_theme()
	call_deferred("_update_responsive_layout")


func _build_header() -> void:
	header_panel = PanelContainer.new()
	add_child(header_panel)
	var margin := MarginContainer.new()
	for side in ["left", "right"]:
		margin.add_theme_constant_override("margin_%s" % side, 14)
	margin.add_theme_constant_override("margin_top", 8)
	margin.add_theme_constant_override("margin_bottom", 8)
	header_panel.add_child(margin)
	header_layout = BoxContainer.new()
	header_layout.add_theme_constant_override("separation", 12)
	margin.add_child(header_layout)
	heading = Label.new()
	heading.text = "CCS Case"
	heading.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	heading.add_theme_font_size_override("font_size", 18)
	Brand.apply_font(heading)
	header_layout.add_child(heading)
	allotted_label = Label.new()
	allotted_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	allotted_label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	allotted_label.add_theme_font_size_override("font_size", 17)
	Brand.apply_font(allotted_label)
	header_layout.add_child(allotted_label)
	toolbar = HFlowContainer.new()
	toolbar.size_flags_horizontal = Control.SIZE_SHRINK_END
	toolbar.add_theme_constant_override("h_separation", 6)
	header_layout.add_child(toolbar)
	var smaller := _toolbar_button("A−", "Decrease clinical text size")
	smaller.pressed.connect(_zoom.bind(-CCSService.TEXT_SCALE_STEP))
	var larger := _toolbar_button("A+", "Increase clinical text size")
	larger.pressed.connect(_zoom.bind(CCSService.TEXT_SCALE_STEP))
	var report := _toolbar_button("Report", "Report this CCS case")
	report.pressed.connect(_report)
	theme_button = _toolbar_button("", "Switch color theme")
	theme_button.custom_minimum_size.x = 42
	theme_button.pressed.connect(theme_service.toggle_theme)
	exit_button = _toolbar_button("Exit Case", "Enter final orders")
	exit_button.pressed.connect(_request_end_case)
	abandon_button = _toolbar_button("Abandon", "Abandon this attempt without a score")
	abandon_button.pressed.connect(func(): abandon_dialog.popup_centered(Vector2i(520, 220)))


func _toolbar_button(text_value: String, tooltip: String) -> Button:
	var button := Button.new()
	button.text = text_value
	button.tooltip_text = tooltip
	button.custom_minimum_size = Vector2(58, 38)
	toolbar.add_child(button)
	toolbar_buttons.append(button)
	return button


func _build_actions() -> void:
	action_grid = GridContainer.new()
	action_grid.columns = 4
	action_grid.add_theme_constant_override("h_separation", 8)
	action_grid.add_theme_constant_override("v_separation", 8)
	add_child(action_grid)
	_add_action("History & Physical", "Interval history and physical exam", ICON_STETHOSCOPE, _open_exam)
	_add_action("Write Orders / Review Chart", "Place orders and review the patient chart", ICON_CLIPBOARD, _open_order_sheet)
	_add_action("Obtain Results / See Patient Later", "Advance simulated case time", ICON_CLOCK, _open_time_dialog)
	_add_action("Change Location", "Move the patient to another care setting", ICON_LOCATION, _open_location_dialog)


func _add_action(title: String, subtitle: String, icon: Texture2D, callback: Callable) -> void:
	var button := Button.new()
	button.text = "%s\n%s" % [title, subtitle]
	button.icon = icon
	button.expand_icon = true
	button.add_theme_constant_override("icon_max_width", 38)
	button.alignment = HORIZONTAL_ALIGNMENT_LEFT
	button.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	button.custom_minimum_size = Vector2(220, 86)
	button.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	button.pressed.connect(callback)
	action_grid.add_child(button)
	action_buttons.append(button)


func _build_workspace() -> void:
	workspace = PanelContainer.new()
	workspace.size_flags_vertical = Control.SIZE_EXPAND_FILL
	add_child(workspace)
	chart_panel = workspace
	clerk_panel = workspace
	var margin := MarginContainer.new()
	margin.add_theme_constant_override("margin_left", 14)
	margin.add_theme_constant_override("margin_right", 14)
	margin.add_theme_constant_override("margin_top", 10)
	margin.add_theme_constant_override("margin_bottom", 12)
	workspace.add_child(margin)
	tabs = TabContainer.new()
	tabs.size_flags_vertical = Control.SIZE_EXPAND_FILL
	tabs.tab_changed.connect(func(_index: int): _render_chart())
	margin.add_child(tabs)
	for definition in CHART_TABS:
		var page := VBoxContainer.new()
		page.name = str(definition[0])
		page.add_theme_constant_override("separation", 8)
		tabs.add_child(page)
		if str(definition[1]) == "orders":
			_build_order_sheet(page)
		else:
			var scroll := ScrollContainer.new()
			scroll.size_flags_vertical = Control.SIZE_EXPAND_FILL
			page.add_child(scroll)
			var label := _clinical_text("chart_%s" % definition[1])
			label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
			scroll.add_child(label)
			chart_views[definition[1]] = label


func _build_order_sheet(page: VBoxContainer) -> void:
	order_sheet = page
	final_orders_notice = Label.new()
	final_orders_notice.visible = false
	final_orders_notice.text = "FINAL ORDERS — Add or cancel orders for the patient’s current condition, then submit."
	final_orders_notice.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	page.add_child(final_orders_notice)
	var search_row := HBoxContainer.new()
	search_row.add_theme_constant_override("separation", 6)
	page.add_child(search_row)
	search = LineEdit.new()
	search.placeholder_text = "Search tests, treatments, medications, and procedures"
	search.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	search.text_submitted.connect(func(_value: String): _submit_search())
	search_row.add_child(search)
	search_button = Button.new()
	search_button.icon = ICON_SEARCH
	search_button.tooltip_text = "Search the order catalog"
	search_button.custom_minimum_size = Vector2(44, 42)
	search_button.pressed.connect(_submit_search)
	search_row.add_child(search_button)
	search_results = VBoxContainer.new()
	search_results.add_theme_constant_override("separation", 4)
	page.add_child(search_results)
	var staged_title := Label.new()
	staged_title.text = "Orders awaiting confirmation"
	Brand.apply_font(staged_title)
	page.add_child(staged_title)
	staged_orders = VBoxContainer.new()
	page.add_child(staged_orders)
	var staged_actions := HBoxContainer.new()
	page.add_child(staged_actions)
	commit_orders_button = Button.new()
	commit_orders_button.text = "Confirm Orders"
	commit_orders_button.pressed.connect(_commit_orders)
	staged_actions.add_child(commit_orders_button)
	clear_orders_button = Button.new()
	clear_orders_button.text = "Clear"
	clear_orders_button.pressed.connect(_clear_staged_orders)
	staged_actions.add_child(clear_orders_button)
	page.add_child(HSeparator.new())
	var active_title := Label.new()
	active_title.text = "Order sheet"
	active_title.add_theme_font_size_override("font_size", 18)
	Brand.apply_font(active_title)
	page.add_child(active_title)
	var header := HBoxContainer.new()
	for item in [["Order", 2.4], ["Route", 0.8], ["Frequency", 1.0], ["Order Time", 1.0], ["Report Time", 1.0], ["", 0.8]]:
		var label := Label.new()
		label.text = item[0]
		label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		label.size_flags_stretch_ratio = item[1]
		Brand.apply_font(label)
		header.add_child(label)
	page.add_child(header)
	var active_scroll := ScrollContainer.new()
	active_scroll.size_flags_vertical = Control.SIZE_EXPAND_FILL
	page.add_child(active_scroll)
	active_orders = VBoxContainer.new()
	active_orders.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	active_scroll.add_child(active_orders)


func _build_footer() -> void:
	var footer := HBoxContainer.new()
	footer.add_theme_constant_override("separation", 12)
	add_child(footer)
	simulated_clock = _footer_label(HORIZONTAL_ALIGNMENT_LEFT)
	footer.add_child(simulated_clock)
	elapsed_clock = _footer_label(HORIZONTAL_ALIGNMENT_CENTER)
	footer.add_child(elapsed_clock)
	remaining_clock = _footer_label(HORIZONTAL_ALIGNMENT_RIGHT)
	footer.add_child(remaining_clock)
	status = Label.new()
	status.visible = false
	status.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	add_child(status)


func _footer_label(h_align: HorizontalAlignment) -> Label:
	var label := Label.new()
	label.horizontal_alignment = h_align
	label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	label.add_theme_font_size_override("font_size", 14)
	Brand.apply_font(label)
	return label


func _build_dialogs() -> void:
	intro_dialog = AcceptDialog.new()
	intro_dialog.close_requested.connect(_accept_opening_step)
	intro_dialog.confirmed.connect(_accept_opening_step)
	add_child(intro_dialog)
	var intro_box := VBoxContainer.new()
	intro_box.custom_minimum_size = Vector2(760, 480)
	intro_dialog.add_child(intro_box)
	intro_title = Label.new()
	intro_title.add_theme_font_size_override("font_size", 22)
	Brand.apply_font(intro_title)
	intro_box.add_child(intro_title)
	intro_body = _clinical_text("opening")
	intro_body.size_flags_vertical = Control.SIZE_EXPAND_FILL
	intro_body.fit_content = false
	intro_body.scroll_active = true
	intro_box.add_child(intro_body)

	exam_dialog = ConfirmationDialog.new()
	exam_dialog.title = "History & Physical"
	exam_dialog.ok_button_text = "Review selection"
	exam_dialog.confirmed.connect(_review_exam_selection)
	add_child(exam_dialog)
	var exam_scroll := ScrollContainer.new()
	exam_scroll.custom_minimum_size = Vector2(680, 480)
	exam_dialog.add_child(exam_scroll)
	var exam_box := VBoxContainer.new()
	exam_box.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	exam_scroll.add_child(exam_box)
	var history_help := Label.new()
	history_help.text = "Select physical examination components. Findings become available after the confirmed time advance."
	history_help.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	exam_box.add_child(history_help)
	exam_box.set_meta("exam_container", true)

	exam_summary_dialog = ConfirmationDialog.new()
	exam_summary_dialog.title = "Confirm History & Physical"
	exam_summary_dialog.confirmed.connect(_commit_exams)
	add_child(exam_summary_dialog)
	exam_summary = _clinical_text("exam_confirmation")
	exam_summary.custom_minimum_size = Vector2(620, 300)
	exam_summary_dialog.add_child(exam_summary)
	findings_dialog = AcceptDialog.new()
	findings_dialog.title = "History and Physical"
	add_child(findings_dialog)
	findings_body = _clinical_text("exam_findings")
	findings_body.custom_minimum_size = Vector2(720, 440)
	findings_body.fit_content = false
	findings_body.scroll_active = true
	findings_dialog.add_child(findings_body)

	time_dialog = ConfirmationDialog.new()
	time_dialog.title = "Obtain Results / See Patient Later"
	time_dialog.confirmed.connect(_commit_time)
	add_child(time_dialog)
	var time_box := VBoxContainer.new()
	time_box.custom_minimum_size = Vector2(540, 260)
	time_dialog.add_child(time_box)
	time_preset = OptionButton.new()
	for item in [["10 minutes", 10], ["1 hour", 60], ["4 hours", 240], ["12 hours", 720], ["1 day", 1440], ["Custom target", -1]]:
		time_preset.add_item(item[0])
		time_preset.set_item_metadata(time_preset.item_count - 1, item[1])
	time_preset.item_selected.connect(_update_time_preview)
	time_box.add_child(time_preset)
	custom_target = LineEdit.new()
	custom_target.placeholder_text = "YYYY-MM-DD HH:MM (case time)"
	custom_target.visible = false
	custom_target.text_changed.connect(func(_value: String): _update_time_preview(time_preset.selected))
	time_box.add_child(custom_target)
	time_preview = Label.new()
	time_preview.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	time_box.add_child(time_preview)

	location_dialog = ConfirmationDialog.new()
	location_dialog.title = "Change Location"
	location_dialog.confirmed.connect(_commit_location)
	add_child(location_dialog)
	var location_box := VBoxContainer.new()
	location_box.custom_minimum_size = Vector2(480, 180)
	location_dialog.add_child(location_box)
	var location_help := Label.new()
	location_help.text = "Select the patient’s destination:"
	location_box.add_child(location_help)
	location_option = OptionButton.new()
	location_box.add_child(location_option)

	end_dialog = ConfirmationDialog.new()
	end_dialog.title = "Enter Final Orders?"
	end_dialog.dialog_text = "This ends active case management. You will have up to two minutes to finalize or cancel patient-care orders."
	end_dialog.ok_button_text = "Enter Final Orders"
	end_dialog.confirmed.connect(func(): CCSService.send_command("end_case"))
	add_child(end_dialog)
	final_instructions = AcceptDialog.new()
	final_instructions.title = "Case-end Instructions"
	final_instructions.dialog_text = "Finalize care of the patient’s current condition.\n\n• Cancel orders that should stop now.\n• Add orders that should be done now.\n• Add relevant future-care orders.\n\nThen submit final orders before time expires."
	final_instructions.confirmed.connect(_open_order_sheet)
	add_child(final_instructions)
	abandon_dialog = ConfirmationDialog.new()
	abandon_dialog.title = "Abandon CCS case?"
	abandon_dialog.dialog_text = "This attempt will end without a score and cannot be resumed."
	abandon_dialog.ok_button_text = "Abandon Case"
	abandon_dialog.confirmed.connect(_confirm_abandon)
	add_child(abandon_dialog)


func _build_runtime_services() -> void:
	timer = Timer.new()
	timer.wait_time = 1
	timer.timeout.connect(_tick)
	add_child(timer)
	CCSService.attempt_changed.connect(_render)
	CCSService.attempt_abandoned.connect(_on_abandoned)
	CCSService.orders_changed.connect(_render_search)
	CCSService.request_failed.connect(_request_failed)
	CCSService.report_submitted.connect(_report_submitted)
	report_dialog = preload("res://scripts/ui/ccs_report_dialog.gd").new()
	add_child(report_dialog)


func on_show(payload: Variant = null) -> void:
	_set_status("")
	leaving = false
	if typeof(payload) == TYPE_STRING and not str(payload).is_empty():
		CCSService.load_attempt(str(payload))
	_render()
	timer.start()


func on_hide() -> void:
	timer.stop()
	_dismiss_dialogs()


func _dismiss_dialogs() -> void:
	# Dialogs are Window nodes, so hiding their parent Control does not dismiss
	# them. Always close every CCS overlay when navigation or logout hides the
	# player to prevent case content from appearing over another screen.
	for dialog in _ccs_dialogs():
		if dialog != null:
			dialog.hide()
	if report_dialog != null and report_dialog.has_method("hide_dialog"):
		report_dialog.hide_dialog()


func _ccs_dialogs() -> Array[Window]:
	var dialogs: Array[Window] = []
	for dialog in [intro_dialog, exam_dialog, exam_summary_dialog, findings_dialog, time_dialog, location_dialog, end_dialog, final_instructions, abandon_dialog]:
		if dialog is Window:
			dialogs.append(dialog)
	return dialogs


func _render() -> void:
	var attempt: Dictionary = CCSService.attempt
	if attempt.is_empty():
		return
	if str(attempt.get("state", "")) == "completed":
		main.show_screen("ccs_review", attempt)
		return
	var was_final := exit_button.text == "Submit Final Orders"
	var final_orders := str(attempt.get("state", "")) == "final_orders"
	for code in staged_order_codes.duplicate():
		if code in attempt.get("activeOrderCodes", []):
			staged_order_codes.erase(code)
			staged_order_names.erase(code)
	heading.text = "CCS Case  |  %s" % _humanize_code(str(attempt.get("location", "")))
	var total := int(attempt.get("realTimeMinutes", 20))
	allotted_label.text = (
		"Legacy untimed CCS case"
		if str(attempt.get("mode", "timed")) == "practice"
		else "Maximum allotted real time: %d minutes + 2 minutes for final orders" % maxi(1, total - 2)
	)
	exit_button.text = "Submit Final Orders" if final_orders else "Exit Case"
	exit_button.tooltip_text = "Submit final orders and complete the case" if final_orders else "Enter final orders"
	final_orders_notice.visible = final_orders
	for button in action_buttons:
		button.disabled = final_orders
	action_buttons[1].disabled = false
	_render_active_orders()
	_render_staged_orders()
	_render_chart()
	_tick()
	_apply_text_scale()
	if not bool(attempt.get("openingCompleted", true)) and not opening_active:
		_start_opening()
	if final_orders and not was_final:
		final_instructions.popup_centered(Vector2i(820, 500))
		_open_order_sheet()
	if awaiting_exam_result and not CCSService.is_loading:
		awaiting_exam_result = false
		_show_new_findings()


func _start_opening() -> void:
	opening_active = true
	opening_step = 0
	_show_opening_step()


func _show_opening_step() -> void:
	var attempt: Dictionary = CCSService.attempt
	match opening_step:
		0:
			intro_dialog.title = "Case Introduction"
			intro_title.text = _simulated_time_text(0)
			intro_body.text = "[center][b]%s[/b]\n\n%s[/center]" % [
				_escape_bbcode(_humanize_code(str(attempt.get("location", "")))),
				_escape_bbcode(str(attempt.get("reasonForEncounter", "")))
			]
		1:
			intro_dialog.title = "Initial Vital Signs"
			intro_title.text = _simulated_time_text(0)
			intro_body.text = _vitals_bbcode(attempt.get("vitals", {}))
		2:
			intro_dialog.title = "Initial History"
			intro_title.text = str(attempt.get("patientSummary", ""))
			intro_body.text = _history_bbcode()
	intro_dialog.popup_centered(Vector2i(820, 560))


func _accept_opening_step() -> void:
	if not opening_active:
		return
	opening_step += 1
	if opening_step < 3:
		call_deferred("_show_opening_step")
	else:
		opening_active = false
		CCSService.send_command("acknowledge_opening")


func _open_exam() -> void:
	if _is_final_orders():
		return
	var container: VBoxContainer
	for node in exam_dialog.find_children("*", "VBoxContainer", true, false):
		if node.has_meta("exam_container"):
			container = node
			break
	if container == null:
		return
	for child in container.get_children():
		if child is CheckBox:
			child.queue_free()
	exam_checks.clear()
	interval_history_check = CheckBox.new()
	interval_history_check.text = "Interval / follow-up history  (1 min)"
	container.add_child(interval_history_check)
	for raw_exam in CCSService.attempt.get("availableExams", []):
		var exam: Dictionary = raw_exam
		var check := CheckBox.new()
		var minutes := maxi(1, int(exam.get("durationMinutes", 1)))
		check.text = "%s  (%d min)" % [str(exam.get("name", _humanize_code(str(exam.get("code", ""))))), minutes]
		check.set_meta("exam_code", str(exam.get("code", "")))
		check.set_meta("exam_minutes", minutes)
		container.add_child(check)
		exam_checks[str(exam.get("code", ""))] = check
	exam_dialog.popup_centered(Vector2i(740, 600))


func _review_exam_selection() -> void:
	staged_exam_codes.clear()
	staged_interval_history = interval_history_check != null and interval_history_check.button_pressed
	var total := 0
	var lines: Array[String] = []
	if staged_interval_history:
		total += 1
		lines.append("• Interval / follow-up history — 1 min")
	for code in exam_checks:
		var check: CheckBox = exam_checks[code]
		if check.button_pressed:
			staged_exam_codes.append(code)
			var minutes := int(check.get_meta("exam_minutes", 1))
			total += minutes
			lines.append("• %s — %d min" % [check.text.get_slice("  (", 0), minutes])
	if staged_exam_codes.is_empty() and not staged_interval_history:
		_set_status("Select interval history or at least one examination component.")
		return
	exam_summary.text = "%s\n\n[b]Total simulated time: %d minutes[/b]\nThis will advance the clock to [b]%s[/b]." % [
		"\n".join(lines), total, _simulated_time_text(int(CCSService.attempt.get("simulatedMinute", 0)) + total)
	]
	exam_summary_dialog.popup_centered(Vector2i(680, 420))


func _commit_exams() -> void:
	var commands: Array = []
	if staged_interval_history:
		commands.append({"type": "interval_history", "code": "", "minutes": 0})
	for code in staged_exam_codes:
		commands.append({"type": "exam", "code": code, "minutes": 0})
	pending_findings_before = _chart_entries("progress").size()
	awaiting_exam_result = true
	CCSService.send_batch(commands)


func _show_new_findings() -> void:
	var entries := _chart_entries("progress")
	var start := mini(pending_findings_before, entries.size())
	var text := "[center][b]%s[/b][/center]\n\n" % _simulated_time_text(int(CCSService.attempt.get("simulatedMinute", 0)))
	for index in range(start, entries.size()):
		var entry: Dictionary = entries[index]
		if str(entry.get("code", "")).is_empty():
			continue
		text += "[b]%s[/b]\n%s\n\n" % [_escape_bbcode(str(entry.get("title", ""))), _escape_bbcode(str(entry.get("text", "")))]
	findings_body.text = text
	findings_dialog.popup_centered(Vector2i(780, 540))


func _open_order_sheet() -> void:
	tabs.current_tab = 0
	search.grab_focus()


func _submit_search() -> void:
	if search.text.strip_edges().length() < 2:
		_set_status("Enter at least two characters to search.")
		return
	_set_status("")
	CCSService.search_orders(search.text)


func _render_search() -> void:
	_clear(search_results)
	if CCSService.orders.is_empty():
		_set_status(
			"No matching orders found. Try a clinical name or category."
			if search.text.strip_edges().length() >= 2
			else "")
		return
	_set_status("")
	for raw_order in CCSService.orders:
		var order: Dictionary = raw_order
		var code := str(order.get("code", ""))
		var button := Button.new()
		button.text = "%s  ·  %s" % [str(order.get("canonicalName", code)), _humanize_code(str(order.get("category", "")))]
		button.alignment = HORIZONTAL_ALIGNMENT_LEFT
		button.disabled = code in staged_order_codes or code in CCSService.attempt.get("activeOrderCodes", [])
		button.pressed.connect(_stage_order.bind(code))
		search_results.add_child(button)


func _stage_order(code: String) -> void:
	if code.is_empty() or code in staged_order_codes:
		return
	staged_order_names[code] = _catalog_name(code)
	staged_order_codes.append(code)
	search.text = ""
	CCSService.orders = []
	_render_search()
	_render_staged_orders()


func _render_staged_orders() -> void:
	_clear(staged_orders)
	for code in staged_order_codes:
		var row := HBoxContainer.new()
		staged_orders.add_child(row)
		var label := Label.new()
		label.text = _catalog_name(code)
		label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		row.add_child(label)
		var remove := Button.new()
		remove.text = "Remove"
		remove.pressed.connect(_unstage_order.bind(code))
		row.add_child(remove)
	commit_orders_button.disabled = staged_order_codes.is_empty()
	clear_orders_button.disabled = staged_order_codes.is_empty()


func _unstage_order(code: String) -> void:
	staged_order_codes.erase(code)
	staged_order_names.erase(code)
	_render_staged_orders()


func _clear_staged_orders() -> void:
	staged_order_codes.clear()
	staged_order_names.clear()
	_render_staged_orders()


func _commit_orders() -> void:
	if staged_order_codes.is_empty():
		return
	var commands: Array = []
	for code in staged_order_codes:
		commands.append({"type": "order", "code": code, "minutes": 0})
	CCSService.orders = []
	_render_search()
	_render_staged_orders()
	CCSService.send_batch(commands)


func _render_active_orders() -> void:
	_clear(active_orders)
	var rows: Array = CCSService.attempt.get("activeOrders", [])
	if rows.is_empty():
		var empty := Label.new()
		empty.text = "No active orders."
		active_orders.add_child(empty)
		return
	for raw_order in rows:
		var order: Dictionary = raw_order
		var row := HBoxContainer.new()
		row.custom_minimum_size.y = 44
		active_orders.add_child(row)
		_add_order_cell(row, str(order.get("name", _humanize_code(str(order.get("code", ""))))), 2.4)
		_add_order_cell(row, str(order.get("route", "—")) if not str(order.get("route", "")).is_empty() else "—", 0.8)
		_add_order_cell(row, str(order.get("frequency", "—")) if not str(order.get("frequency", "")).is_empty() else "—", 1.0)
		_add_order_cell(row, _simulated_time_text(int(order.get("orderedMinute", 0)), false), 1.0)
		var report_value: Variant = order.get("reportMinute", null)
		var report_text := "—"
		if bool(order.get("isPending", false)):
			report_text = "Pending"
		elif bool(order.get("hasResult", report_value != null)) and report_value != null:
			report_text = _simulated_time_text(int(report_value), false)
		_add_order_cell(row, report_text, 1.0)
		var cancel := Button.new()
		cancel.text = "Cancel"
		cancel.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		cancel.size_flags_stretch_ratio = 0.8
		cancel.pressed.connect(_cancel_order.bind(str(order.get("code", ""))))
		row.add_child(cancel)


func _add_order_cell(row: HBoxContainer, value: String, ratio: float) -> void:
	var label := Label.new()
	label.text = value
	label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	label.size_flags_stretch_ratio = ratio
	row.add_child(label)


func _cancel_order(code: String) -> void:
	CCSService.send_batch([{"type": "cancel_order", "code": code, "minutes": 0}])


func _open_time_dialog() -> void:
	if _is_final_orders():
		return
	time_preset.select(0)
	custom_target.visible = false
	_update_time_preview(0)
	time_dialog.popup_centered(Vector2i(600, 350))


func _update_time_preview(index: int) -> void:
	var minutes := int(time_preset.get_item_metadata(index))
	custom_target.visible = minutes < 0
	if minutes < 0:
		minutes = _custom_target_minutes()
	time_preview.text = "Clock will advance to %s." % _simulated_time_text(int(CCSService.attempt.get("simulatedMinute", 0)) + maxi(0, minutes))
	time_dialog.get_ok_button().disabled = minutes <= 0


func _custom_target_minutes() -> int:
	var value := custom_target.text.strip_edges().replace(" ", "T")
	if value.length() == 16:
		value += ":00"
	var target := Time.get_unix_time_from_datetime_string(value)
	if target <= 0:
		return 0
	var start_text := str(CCSService.attempt.get("simulatedStartUtc", "")).trim_suffix("Z")
	var start_unix := Time.get_unix_time_from_datetime_string(start_text)
	var current_unix := start_unix + int(CCSService.attempt.get("simulatedMinute", 0)) * 60
	return maxi(0, int((target - current_unix) / 60.0))


func _commit_time() -> void:
	var minutes := int(time_preset.get_item_metadata(time_preset.selected))
	if minutes < 0:
		minutes = _custom_target_minutes()
	if minutes > 0:
		CCSService.send_command("advance", "", minutes)


func _open_location_dialog() -> void:
	if _is_final_orders():
		return
	location_option.clear()
	for raw_location in CCSService.attempt.get("allowedLocations", []):
		var location := str(raw_location)
		location_option.add_item(_humanize_code(location))
		location_option.set_item_metadata(location_option.item_count - 1, location)
	location_dialog.get_ok_button().disabled = location_option.item_count == 0
	location_dialog.popup_centered(Vector2i(540, 280))


func _commit_location() -> void:
	if location_option.item_count > 0:
		CCSService.send_command("location", str(location_option.get_item_metadata(location_option.selected)))


func _request_end_case() -> void:
	if _is_final_orders():
		CCSService.send_command("exit_case")
	else:
		end_dialog.popup_centered(Vector2i(560, 260))


func leave_case() -> void:
	abandon_dialog.popup_centered(Vector2i(520, 220))


func _confirm_abandon() -> void:
	if leaving:
		return
	leaving = true
	CCSService.abandon()


func _on_abandoned() -> void:
	if leaving:
		leaving = false
		main.show_screen("ccs_cases_2" if CCSService.launch_origin == "ccs_cases_2" else "ccs_hub")


func _render_chart() -> void:
	for definition in CHART_TABS:
		var category := str(definition[1])
		if category == "orders":
			continue
		var label: RichTextLabel = chart_views.get(category)
		if label == null:
			continue
		label.text = _chart_category_bbcode(category)


func _chart_category_bbcode(category: String) -> String:
	if category == "vitals":
		return _vital_history_bbcode()
	var entries := _chart_entries(category)
	if entries.is_empty():
		return "[center][color=#8490a5]No %s available.[/color][/center]" % str(_tab_title(category)).to_lower()
	var text := ""
	for raw_entry in entries:
		var entry: Dictionary = raw_entry
		text += "[b]%s[/b]  [color=#8490a5]%s[/color]\n%s\n\n" % [
			_escape_bbcode(str(entry.get("title", _tab_title(category)))),
			_escape_bbcode(_simulated_time_text(int(entry.get("simulatedMinute", 0)), false)),
			_escape_bbcode(str(entry.get("text", "")))
		]
	return text


func _chart_entries(category: String) -> Array:
	var result: Array = []
	for raw_entry in CCSService.attempt.get("chart", []):
		var entry: Dictionary = raw_entry
		var actual := str(entry.get("category", "progress"))
		if actual == "exam":
			actual = "progress"
		elif actual == "results":
			actual = "other_test"
		if actual == category:
			result.append(entry)
	return result


func _vital_history_bbcode() -> String:
	var snapshots: Array = CCSService.attempt.get("vitalHistory", [])
	if snapshots.is_empty():
		return _vitals_bbcode(CCSService.attempt.get("vitals", {}))
	var text := ""
	for raw_snapshot in snapshots:
		var snapshot: Dictionary = raw_snapshot
		text += "[b]%s[/b]\n%s\n\n" % [
			_escape_bbcode(_simulated_time_text(int(snapshot.get("simulatedMinute", 0)), false)),
			_vitals_bbcode(snapshot.get("values", {}))
		]
	return text


func _vitals_bbcode(vitals: Dictionary) -> String:
	var lines: Array[String] = []
	for key in _ordered_vital_keys(vitals):
		lines.append("[b]%s:[/b] %s" % [_escape_bbcode(_vital_label(key)), _escape_bbcode(str(vitals[key]))])
	return "\n".join(lines)


func _history_bbcode() -> String:
	var sections: Array = CCSService.attempt.get("historySections", [])
	if sections.is_empty():
		return "[b]History of present illness[/b]\n%s\n\n[b]Initial appearance[/b]\n%s" % [
			_escape_bbcode(str(CCSService.attempt.get("history", ""))),
			_escape_bbcode(str(CCSService.attempt.get("appearance", "")))
		]
	var text := ""
	for raw_section in sections:
		var section: Dictionary = raw_section
		text += "[b]%s[/b]\n%s\n\n" % [_escape_bbcode(str(section.get("title", ""))), _escape_bbcode(str(section.get("text", "")))]
	return text


func _tick() -> void:
	if CCSService.attempt.is_empty():
		return
	var now := Time.get_unix_time_from_system()
	var created_text := str(CCSService.attempt.get("createdUtc", "")).trim_suffix("Z")
	var created := Time.get_unix_time_from_datetime_string(created_text)
	var elapsed := maxi(0, int(now - created))
	var phase_deadline := CCSService.deadline_unix()
	var hard_deadline := CCSService.hard_deadline_unix()
	var display_deadline := phase_deadline if _is_final_orders() else hard_deadline
	var remaining := maxi(0, int(ceil(display_deadline - now)))
	var phase_remaining := maxi(0, int(ceil(phase_deadline - now)))
	simulated_clock.text = "Elapsed SIMULATED case time: %s" % _elapsed_simulated_text(int(CCSService.attempt.get("simulatedMinute", 0)))
	elapsed_clock.text = "Elapsed REAL time: %s" % _duration_text(elapsed)
	remaining_clock.text = (
		"Legacy untimed case"
		if hard_deadline <= 0
		else "%s REAL time: %s" % ["Final-order" if _is_final_orders() else "Remaining", _duration_text(remaining)]
	)
	if phase_remaining == 0 and phase_deadline > 0 and not CCSService.is_loading:
		CCSService.load_attempt(str(CCSService.attempt.get("id", "")))


func _simulated_time_text(minute: int, include_day: bool = true) -> String:
	var start_text := str(CCSService.attempt.get("simulatedStartUtc", "")).trim_suffix("Z")
	var unix := Time.get_unix_time_from_datetime_string(start_text)
	if unix <= 0:
		return "Minute %d" % minute
	var value := Time.get_datetime_dict_from_unix_time(unix + minute * 60)
	var hour := int(value.hour)
	var suffix := "AM" if hour < 12 else "PM"
	var display_hour := hour % 12
	if display_hour == 0:
		display_hour = 12
	var day_number := 1 + int(floor(float(minute) / 1440.0))
	return "%s%d:%02d %s" % ["Day %d @ " % day_number if include_day else "", display_hour, int(value.minute), suffix]


func _elapsed_simulated_text(minutes: int) -> String:
	@warning_ignore("integer_division")
	return "%d Days %02d Hrs %02d Mins" % [minutes / 1440, (minutes % 1440) / 60, minutes % 60]


func _duration_text(seconds: int) -> String:
	@warning_ignore("integer_division")
	return "%02d:%02d" % [seconds / 60, seconds % 60]


func _ordered_vital_keys(vitals: Dictionary) -> Array[String]:
	var ordered: Array[String] = []
	for key in ["temperature", "bloodPressure", "pulse", "respirations", "oxygenSaturation", "height", "weight", "bmi"]:
		if vitals.has(key):
			ordered.append(key)
	var remaining: Array[String] = []
	for raw_key in vitals.keys():
		var key := str(raw_key)
		if not key in ordered:
			remaining.append(key)
	remaining.sort()
	ordered.append_array(remaining)
	return ordered


func _vital_label(key: String) -> String:
	match key:
		"bloodPressure": return "Blood Pressure"
		"oxygenSaturation": return "Oxygen Saturation"
		"bmi": return "Body Mass Index"
		_: return _humanize_code(key)


func _clinical_text(region: String) -> RichTextLabel:
	var label := RichTextLabel.new()
	label.bbcode_enabled = true
	label.selection_enabled = true
	label.fit_content = true
	label.scroll_active = false
	label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	label.add_theme_font_override("normal_font", Brand.font)
	label.add_theme_font_override("bold_font", Brand.font)
	label.set_meta("ccs_base_font_size", 16)
	label.set_meta("ccs_region", region)
	label.gui_input.connect(_text_input.bind(label))
	clinical_labels.append(label)
	return label


func _text_input(event: InputEvent, label: RichTextLabel) -> void:
	if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT and not event.pressed:
		call_deferred("_commit_selection", label)


func _commit_selection(label: RichTextLabel) -> void:
	var text := label.get_selected_text()
	if text.is_empty():
		return
	var source := label.get_parsed_text()
	var start := source.find(text)
	if start >= 0:
		CCSService.toggle_highlight(str(CCSService.attempt.get("id", "")), str(label.get_meta("ccs_region", "")), start, start + text.length())


func _zoom(delta: float) -> void:
	CCSService.adjust_text_scale(delta)
	_apply_text_scale()


func _apply_text_scale() -> void:
	for label in clinical_labels:
		var font_size := maxi(12, int(round(float(label.get_meta("ccs_base_font_size", 16)) * CCSService.text_scale)))
		label.add_theme_font_size_override("normal_font_size", font_size)
		label.add_theme_font_size_override("bold_font_size", font_size)


func _report() -> void:
	if report_dialog != null:
		report_dialog.open(CCSService.attempt)


func _report_submitted(_id: String) -> void:
	_set_status("Case report submitted.", false)


func _request_failed(message: String) -> void:
	if visible:
		awaiting_exam_result = false
		_set_status(message)


func _set_status(message: String, is_error: bool = true) -> void:
	status.text = message
	status.visible = not message.is_empty()
	status.add_theme_color_override("font_color", Color("ff6b7f") if is_error else Brand.SUCCESS)


func _catalog_name(code: String) -> String:
	if staged_order_names.has(code):
		return str(staged_order_names[code])
	for raw_order in CCSService.orders:
		var order: Dictionary = raw_order
		if str(order.get("code", "")) == code:
			return str(order.get("canonicalName", _humanize_code(code)))
	return _humanize_code(code)


func _tab_title(category: String) -> String:
	for definition in CHART_TABS:
		if str(definition[1]) == category:
			return str(definition[0])
	return _humanize_code(category)


func _humanize_code(value: String) -> String:
	return value.replace("_", " ").capitalize()


func _escape_bbcode(value: String) -> String:
	return value.replace("[", "[lb]").replace("]", "[rb]")


func _is_final_orders() -> bool:
	return str(CCSService.attempt.get("state", "")) == "final_orders"


func _clear(parent: Node) -> void:
	for child in parent.get_children():
		child.queue_free()


func _update_responsive_layout() -> void:
	if action_grid == null:
		return
	var narrow := size.x > 0 and size.x < RESPONSIVE_BREAKPOINT
	header_layout.vertical = narrow
	action_grid.columns = 2 if narrow else 4
	toolbar.size_flags_horizontal = Control.SIZE_EXPAND_FILL if narrow else Control.SIZE_SHRINK_END
	for button in action_buttons:
		button.custom_minimum_size.x = 0 if narrow else 220
	queue_sort()


func _on_theme_changed(_dark: bool) -> void:
	call_deferred("_apply_theme")


func _apply_theme() -> void:
	if header_panel == null:
		return
	var dark: bool = theme_service != null and theme_service.is_dark_mode()
	header_panel.add_theme_stylebox_override("panel", Brand.content_card_box(dark, false))
	workspace.add_theme_stylebox_override("panel", Brand.content_card_box(dark, false))
	heading.add_theme_color_override("font_color", Brand.text_color(dark))
	allotted_label.add_theme_color_override("font_color", Brand.ROYAL_BLUE if not dark else Brand.SKY_BLUE)
	for label in [simulated_clock, elapsed_clock, remaining_clock]:
		label.add_theme_color_override("font_color", Brand.text_color(dark))
	final_orders_notice.add_theme_color_override("font_color", Brand.AMBER)
	for button in toolbar_buttons + action_buttons:
		button.add_theme_font_override("font", Brand.font)
		button.add_theme_color_override("font_color", Brand.text_color(dark))
		button.add_theme_color_override("font_hover_color", Brand.text_color(dark))
		button.add_theme_stylebox_override("normal", Brand.content_card_box(dark, false))
		button.add_theme_stylebox_override("hover", Brand.content_card_box(dark, true))
	for label in clinical_labels:
		label.add_theme_color_override("default_color", Brand.text_color(dark))
	_apply_dialog_theme(dark)
	Brand.set_theme_toggle_icon(theme_button, dark)
	theme_button.tooltip_text = "Switch to light mode" if dark else "Switch to dark mode"
	_apply_text_scale()


func _apply_dialog_theme(dark: bool) -> void:
	var popup_theme := Theme.new()
	var text := Brand.text_color(dark)
	var muted := Brand.muted_color(dark)
	var panel := Brand.content_card_box(dark, false)
	panel.content_margin_left = 18
	panel.content_margin_right = 18
	panel.content_margin_top = 16
	panel.content_margin_bottom = 16

	for type_name in ["Label", "Button", "CheckBox", "OptionButton", "LineEdit", "PopupMenu"]:
		popup_theme.set_font("font", type_name, Brand.font)
		popup_theme.set_color("font_color", type_name, text)
	popup_theme.set_font("normal_font", "RichTextLabel", Brand.font)
	popup_theme.set_font("bold_font", "RichTextLabel", Brand.font)
	popup_theme.set_color("default_color", "RichTextLabel", text)
	popup_theme.set_color("font_selected_color", "RichTextLabel", text)
	popup_theme.set_color("font_hover_color", "Button", text)
	popup_theme.set_color("font_pressed_color", "Button", text)
	popup_theme.set_color("font_disabled_color", "Button", muted)
	popup_theme.set_color("font_hover_color", "OptionButton", text)
	popup_theme.set_color("font_pressed_color", "OptionButton", text)
	popup_theme.set_color("font_hover_color", "CheckBox", text)
	popup_theme.set_color("font_pressed_color", "CheckBox", text)
	popup_theme.set_color("font_hover_color", "PopupMenu", text)
	popup_theme.set_color("font_accelerator_color", "PopupMenu", muted)
	popup_theme.set_color("font_placeholder_color", "LineEdit", muted)
	popup_theme.set_color("title_color", "Window", text)
	popup_theme.set_font("title_font", "Window", Brand.font)

	for type_name in ["Button", "OptionButton"]:
		popup_theme.set_stylebox("normal", type_name, Brand.secondary_button_box(dark))
		popup_theme.set_stylebox("hover", type_name, Brand.secondary_button_box(dark, true))
		popup_theme.set_stylebox("pressed", type_name, Brand.secondary_button_box(dark, true))
	popup_theme.set_stylebox("normal", "LineEdit", Brand.field_box(dark))
	popup_theme.set_stylebox("focus", "LineEdit", Brand.field_box(dark, true))
	for type_name in ["Window", "AcceptDialog", "ConfirmationDialog"]:
		popup_theme.set_stylebox("panel", type_name, panel)
	popup_theme.set_stylebox("panel", "PopupMenu", panel)
	popup_theme.set_stylebox("hover", "PopupMenu", Brand.secondary_button_box(dark, true))

	for dialog in _ccs_dialogs():
		dialog.theme = popup_theme