// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "fs.hpp"

#include <algorithm>
#include <filesystem>
#include <fstream>
#include <iostream>
#include <iterator>
#include <string>
#include <vector>

namespace google
{
namespace hoth
{
namespace internal
{

namespace fs = std::filesystem;

std::vector<fs::path> listDir(const fs::path& path)
{
    std::vector<fs::path> output;

    std::copy(fs::directory_iterator(path), fs::directory_iterator(),
              std::back_inserter(output));

    return output;
}

std::string getFirstLine(const fs::path& path)
{
    std::ifstream file(path.string());
    file.exceptions(std::ifstream::failbit);

    std::string line;
    std::getline(file, line);

    return line;
}

} // namespace internal

} // namespace hoth

} // namespace google