extends SceneTree

var failures := 0


func _initialize() -> void:
	_test_reference_normalization()
	_test_reference_url_filter()
	_test_correct_feedback_does_not_auto_advance()
	_test_correct_review_locks_answer_interactions()
	quit(1 if failures > 0 else 0)


func _test_reference_normalization() -> void:
	var service = load("res://scripts/autoload/question_bank_service.gd").new()
	var references: Array = service._normalize_references([{
		"Title": "Clinical guideline",
		"Publisher": "Example Society",
		"Url": "https://example.org/guideline",
		"Supports": "Recommended management",
		"AccessedOn": "2026-07-14",
		"Reviewer": "reviewer"
	}])
	_assert(references.size() == 1, "a structured reference should be retained")
	_assert(references[0].get("title", "") == "Clinical guideline", "reference title should be normalized")
	_assert(references[0].get("accessed_on", "") == "2026-07-14", "reference access date should be normalized")
	service.free()


func _test_reference_url_filter() -> void:
	var player = load("res://scripts/ui/question_player.gd").new()
	_assert(player._is_safe_reference_url("https://example.org/source"), "HTTPS references should be accepted")
	_assert(not player._is_safe_reference_url("http://example.org/source"), "HTTP references should be rejected")
	_assert(not player._is_safe_reference_url("javascript:alert(1)"), "script URLs should be rejected")
	player.references_container = VBoxContainer.new()
	player._show_references([
		{"title": "Clinical guideline", "publisher": "Example Society", "url": "https://example.org/source"},
		{"title": "Unsafe", "publisher": "Example", "url": "http://example.org/source"}
	])
	_assert(player.references_container.visible, "valid references should show the references section")
	_assert(player.references_container.get_child_count() == 2, "the section should contain a heading and one safe link")
	var link := player.references_container.get_child(1) as LinkButton
	_assert(link != null and link.text == "Clinical guideline - Example Society", "reference link text should identify its source")
	player.references_container.free()
	player.free()


func _test_correct_feedback_does_not_auto_advance() -> void:
	var player = load("res://scripts/ui/question_player.gd").new()
	player.next_button = Button.new()
	player.skip_button = Button.new()
	player.feedback_fog = ColorRect.new()
	player.pending_correct_advance = false
	player._trigger_correct_feedback()
	_assert(not player.pending_correct_advance, "correct feedback must not schedule automatic advancement")
	player.next_button.free()
	player.skip_button.free()
	player.feedback_fog.free()
	player.free()


func _test_correct_review_locks_answer_interactions() -> void:
	var player = load("res://scripts/ui/question_player.gd").new()
	player.current_answer = {"is_correct": true}
	player.selected_choice = "A"
	player.presented_choices = [{"id": "A", "text": "First"}, {"id": "B", "text": "Second"}]
	player._select_choice(1)
	_assert(player.selected_choice == "A", "correct review should reject answer selection changes")
	var right_click := InputEventMouseButton.new()
	right_click.button_index = MOUSE_BUTTON_RIGHT
	right_click.pressed = true
	player._choice_gui_input(right_click, 1)
	_assert(player.eliminated.is_empty(), "correct review should reject answer strike-through changes")
	player.free()


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