/*
	This file is part of solidity.

	solidity is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	solidity is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0

#include <libsolidity/formal/ModelCheckerSettings.h>

#include <optional>
#include <range/v3/view.hpp>

using namespace std;
using namespace ranges;
using namespace solidity;
using namespace solidity::frontend;

std::optional<ModelCheckerTargets> ModelCheckerTargets::fromString(string const& _targets)
{
	using TargetType = VerificationTargetType;
	static map<string, TargetType> const targetStrings{
		{"constantCondition", TargetType::ConstantCondition},
		{"underflow", TargetType::Underflow},
		{"overflow", TargetType::Overflow},
		{"divByZero", TargetType::DivByZero},
		{"balance", TargetType::Balance},
		{"assert", TargetType::Assert},
		{"popEmptyArray", TargetType::PopEmptyArray}
	};

	set<TargetType> chosenTargets;
	if (_targets == "all")
		for (auto&& v: targetStrings | views::values)
			chosenTargets.insert(v);
	else
		for (auto&& t: _targets | views::split(',') | ranges::to<vector<string>>())
		{
			if (!targetStrings.count(t))
				return {};
			chosenTargets.insert(targetStrings.at(t));
		}

	return ModelCheckerTargets{chosenTargets};
}