/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

package org.apache.kyuubi.util

import java.io.File
import java.nio.file.{Path, Paths}
import java.util.concurrent.ConcurrentHashMap
import java.util.concurrent.atomic.AtomicBoolean

import org.apache.kyuubi.Utils

object TempFileCleanupUtils {
  private lazy val deleteTargets = ConcurrentHashMap.newKeySet[String]()

  private lazy val isCleanupShutdownHookInstalled = {
    installFilesCleanupOnExitShutdownHook()
    new AtomicBoolean(true)
  }

  private def installFilesCleanupOnExitShutdownHook(): Unit = {
    Utils.addShutdownHook(() => {
      deleteTargets.forEach { pathStr =>
        try {
          Utils.deleteDirectoryRecursively(Paths.get(pathStr).toFile)
        } catch {
          case _: Exception =>
        }
      }
      deleteTargets.clear()
    })
  }

  def deleteOnExit(file: File): Unit = {
    require(file != null)
    deleteOnExit(file.toPath)
  }

  def deleteOnExit(path: Path): Unit = {
    require(path != null)
    isCleanupShutdownHookInstalled.get()
    deleteTargets.add(path.toString)
  }

  def cancelDeleteOnExit(path: Path): Unit = {
    require(path != null)
    isCleanupShutdownHookInstalled.get()
    deleteTargets.remove(path.toString)
  }

}
