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/*
 * SonarQube JavaScript Plugin
 * Copyright (C) 2011-2022 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.plugins.javascript.lcov;

import javax.annotation.CheckForNull;
import org.sonar.api.batch.fs.InputFile;
import org.sonar.api.utils.PathUtils;

class FileLocator {
  private final ReversePathTree tree = new ReversePathTree();

  FileLocator(Iterable inputFiles) {
    inputFiles.forEach(inputFile -> {
      String[] path = inputFile.relativePath().split("/");
      tree.index(inputFile, path);
    });
  }

  @CheckForNull
  InputFile getInputFile(String filePath) {
    String sanitizedPath = PathUtils.sanitize(filePath);
    if (sanitizedPath == null) {
      return null;
    }
    String[] pathElements = sanitizedPath.split("/");
    return tree.getFileWithSuffix(pathElements);
  }
}