/* Copyright 2017 - 2026 R. Thomas
 * Copyright 2017 - 2026 Quarkslab
 *
 * 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 "LIEF/ELF/DynamicEntryRunPath.hpp"
#include "LIEF/Visitor.hpp"
#include "logging.hpp"

#include <algorithm>
#include <numeric>
#include <sstream>


namespace LIEF::ELF {

std::vector<std::string> DynamicEntryRunPath::paths() const {
  std::stringstream ss;
  ss.str(runpath());

  std::string path;

  std::vector<std::string> paths;
  while (std::getline(ss, path, DynamicEntryRunPath::delimiter)) {
    paths.push_back(path);
  }
  return paths;
}

void DynamicEntryRunPath::paths(const std::vector<std::string>& paths) {
  runpath_ =
      std::accumulate(paths.begin(), paths.end(), std::string(""),
                      [](const std::string& path, const std::string& new_entry) {
                        return path.empty() ?
                                   new_entry :
                                   path + DynamicEntryRunPath::delimiter +
                                       new_entry;
                      });
}

DynamicEntryRunPath& DynamicEntryRunPath::append(const std::string& path) {
  std::vector<std::string> paths = this->paths();
  paths.push_back(path);
  this->paths(paths);
  return *this;
}

DynamicEntryRunPath& DynamicEntryRunPath::remove(const std::string& path) {
  std::vector<std::string> paths = this->paths();
  paths.erase(std::remove_if(paths.begin(), paths.end(),
                             [&path](const std::string& p) { return p == path; }),
              paths.end());
  this->paths(paths);
  return *this;
}

DynamicEntryRunPath& DynamicEntryRunPath::insert(size_t pos,
                                                 const std::string& path) {
  std::vector<std::string> paths = this->paths();

  if (pos == paths.size()) {
    return append(path);
  }

  if (pos > paths.size()) {
    LIEF_ERR("Position {:d} is out of range", pos);
  }
  paths.insert(paths.begin() + pos, path);
  this->paths(paths);
  return *this;
}

void DynamicEntryRunPath::accept(Visitor& visitor) const {
  visitor.visit(*this);
}


std::ostream& DynamicEntryRunPath::print(std::ostream& os) const {
  DynamicEntry::print(os);
  os << fmt::format("{:<10}", runpath());
  return os;
}
}