// Copyright 2018 The Bazel Authors. All rights reserved.
//
// 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 "src/main/cpp/util/path.h"

#include <string>

#include "src/main/cpp/util/file_platform.h"
#include "src/main/cpp/util/path_platform.h"

namespace blaze_util {

std::string Dirname(const std::string &path) { return SplitPath(path).first; }

std::string Basename(const std::string &path) { return SplitPath(path).second; }

std::string JoinPath(const std::string &path1, const std::string &path2) {
  if (path1.empty()) {
    // "" + "/bar"
    return path2;
  }

  if (path1[path1.size() - 1] == '/') {
    if (path2.find('/') == 0) {
      // foo/ + /bar
      return path1 + path2.substr(1);
    } else {
      // foo/ + bar
      return path1 + path2;
    }
  } else {
    if (path2.find('/') == 0) {
      // foo + /bar
      return path1 + path2;
    } else {
      // foo + bar
      return path1 + "/" + path2;
    }
  }
}

}  // namespace blaze_util