extends SceneTree

var failures := 0


class ScreenHost extends Control:
	var shown_screen := ""

	func show_screen(screen_name: String, _payload: Variant = null) -> void:
		shown_screen = screen_name


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


func _run() -> void:
	var prior_environment: String = ProjectSettings.get_setting("step3/deployment_environment", "development")
	ProjectSettings.set_setting("step3/deployment_environment", "uat")
	var main_screen = load("res://scripts/ui/main.gd").new()
	root.add_child(main_screen)
	await process_frame
	var nav_button := main_screen.sidebar.find_child("NavCcsCases2", true, false) as Button
	_assert(nav_button != null and nav_button.visible, "UAT should expose a CCS Cases 2 navigation item")
	_assert(main_screen.screens.has("ccs_cases_2"), "UAT should register the graphical CCS screen")
	main_screen.queue_free()
	await process_frame
	ProjectSettings.set_setting("step3/deployment_environment", prior_environment)

	var service = root.get_node("CCSService")
	var prior_attempt: Dictionary = service.attempt.duplicate(true)
	var prior_cases: Array = service.cases.duplicate(true)
	var prior_origin: String = service.launch_origin
	var host := ScreenHost.new()
	host.size = Vector2(1200.0, 700.0)
	root.add_child(host)
	var screen = load("res://scripts/ui/ccs_cases_2_screen.gd").new()
	screen.main = host
	host.add_child(screen)
	await process_frame

	service.cases = [
		{"externalId": "interactive", "title": "Interactive case", "system": "Endocrine", "difficulty": 2, "realTimeMinutes": 20, "interactiveInterviewAvailable": true},
		{"externalId": "legacy", "title": "Legacy case", "interactiveInterviewAvailable": false}
	]
	service.attempt = {}
	screen.cases_loaded = true
	screen.active_loaded = true
	screen._render_state()
	await process_frame
	_assert(screen.current_view == "case_selection", "CCS Cases 2 should begin with compatible case selection")
	_assert(screen.case_list.get_child_count() == 1, "legacy cases should be excluded from graphical selection")

	service.attempt = _sample_attempt(false)
	screen._render_state()
	await process_frame
	_assert(screen.current_view == "doctor_office", "an active interactive attempt should open the doctor office")
	_assert(screen.active_scene.dialogue_text.text == "Hello, doctor.", "the patient bubble should use the server-provided current node")
	_assert(screen.active_scene.choice_container.get_child_count() == 1, "the scene should render server-provided dialogue choices")
	_assert(is_equal_approx(screen.stage_root.scale.x, screen.stage_root.scale.y), "the graphical stage should preserve its aspect ratio")

	service.attempt = _sample_attempt(true)
	screen._on_attempt_changed()
	await process_frame
	_assert(screen.active_scene.dialogue_text.text == "Okay, doctor.", "attempt updates should advance the rendered patient response")
	_assert(screen.active_scene.choice_container.get_child_count() == 1, "terminal dialogue should expose the management handoff")
	screen.active_scene.interview_continue_requested.emit()
	_assert(host.shown_screen == "ccs_player", "terminal dialogue should hand off the same attempt to the CCS player")

	screen.on_hide()
	await process_frame
	_assert(screen.active_scene == null, "hiding CCS Cases 2 should release the doctor scene")
	host.queue_free()
	service.attempt = prior_attempt
	service.cases = prior_cases
	service.launch_origin = prior_origin
	await process_frame
	quit(1 if failures > 0 else 0)


func _sample_attempt(completed: bool) -> Dictionary:
	var node := {
		"id": "done" if completed else "greeting",
		"patientText": "Okay, doctor." if completed else "Hello, doctor.",
		"isTerminal": completed,
		"choices": [] if completed else [{"id": "ask_reason", "text": "What brings you in?", "nextNodeId": "done"}]
	}
	return {
		"id": "attempt-1", "state": "active", "revision": 1,
		"openingCompleted": completed,
		"interview": {"currentNodeId": node.id, "currentNode": node, "visitedChoiceIds": [], "completed": completed}
	}


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