Refactor condition logic to enable testing

lib/utils/condition-logic.cpp

@@ -0,0 +1,109 @@
+#include "condition-logic.hpp"
+#include "obs-module-helper.hpp"
+#include "log-helper.hpp"
+
+#include <cassert>
+#include <QComboBox>
+
+namespace advss {
+
+const std::map<Logic::Type, const char *> Logic::localeMap = {
+	{Logic::Type::NONE, {"AdvSceneSwitcher.logic.none"}},
+	{Logic::Type::AND, {"AdvSceneSwitcher.logic.and"}},
+	{Logic::Type::OR, {"AdvSceneSwitcher.logic.or"}},
+	{Logic::Type::AND_NOT, {"AdvSceneSwitcher.logic.andNot"}},
+	{Logic::Type::OR_NOT, {"AdvSceneSwitcher.logic.orNot"}},
+	{Logic::Type::ROOT_NONE, {"AdvSceneSwitcher.logic.rootNone"}},
+	{Logic::Type::ROOT_NOT, {"AdvSceneSwitcher.logic.not"}},
+};
+
+bool Logic::ApplyConditionLogic(Type type, bool currentMatchResult,
+				bool conditionMatched, const char *context)
+{
+	if (!context) {
+		context = "";
+	}
+
+	switch (type) {
+	case Type::ROOT_NONE:
+		return conditionMatched;
+	case Type::ROOT_NOT:
+		return !conditionMatched;
+	case Type::ROOT_LAST:
+		break;
+	case Type::NONE:
+		vblog(LOG_INFO, "skipping condition check for '%s'", context);
+		return currentMatchResult;
+	case Type::AND:
+		return currentMatchResult && conditionMatched;
+	case Type::OR:
+		return currentMatchResult || conditionMatched;
+	case Type::AND_NOT:
+		return currentMatchResult && !conditionMatched;
+	case Type::OR_NOT:
+		return currentMatchResult || !conditionMatched;
+	case Type::LAST:
+	default:
+		blog(LOG_WARNING, "ignoring invalid logic check (%s)", context);
+		return currentMatchResult;
+	}
+
+	return currentMatchResult;
+}
+
+void Logic::PopulateLogicTypeSelection(QComboBox *list, bool isRootCondition)
+{
+	auto compare = isRootCondition
+			       ? std::function<bool(int)>{[](int typeValue) {
+					 return typeValue < rootOffset;
+				 }}
+			       : std::function<bool(int)>{[](int typeValue) {
+					 return typeValue >= rootOffset;
+				 }};
+	for (const auto &[type, name] : localeMap) {
+		const int typeValue = static_cast<int>(type);
+		if (compare(typeValue)) {
+			list->addItem(obs_module_text(name), typeValue);
+		}
+	}
+}
+
+void Logic::Save(obs_data_t *obj, const char *name) const
+{
+	obs_data_set_int(obj, name, static_cast<int>(_type));
+}
+
+void Logic::Load(obs_data_t *obj, const char *name)
+{
+	_type = static_cast<Type>(obs_data_get_int(obj, name));
+}
+
+bool Logic::IsRootType() const
+{
+	return _type < static_cast<Type>(rootOffset);
+}
+
+bool Logic::IsNegationType(Logic::Type type)
+{
+	return type == Type::ROOT_NOT || type == Type::AND_NOT ||
+	       type == Type::OR_NOT;
+	;
+}
+
+bool Logic::IsValidSelection(bool isRootCondition) const
+{
+	if (!IsRootType() == isRootCondition) {
+		return false;
+	}
+	if (IsRootType() &&
+	    (_type < Type::ROOT_NONE || _type >= Type::ROOT_LAST)) {
+		return false;
+	}
+	if (!IsRootType() &&
+	    (_type <= Type::ROOT_LAST || _type >= Type::LAST)) {
+		return false;
+	}
+	return true;
+}
+
+} // namespace advss