/*
 * 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.texera.web

import org.apache.texera.amber.engine.common.AmberRuntime
import org.apache.commons.jcs3.access.exception.InvalidArgumentException

import scala.annotation.tailrec

object ComputingUnitWorker {

  type OptionMap = Map[Symbol, Any]

  def parseArgs(args: Array[String]): OptionMap = {
    @tailrec
    def nextOption(map: OptionMap, list: List[String]): OptionMap = {
      list match {
        case Nil => map
        case "--serverAddr" :: value :: tail =>
          nextOption(map ++ Map(Symbol("serverAddr") -> value), tail)
        case option :: tail =>
          throw new InvalidArgumentException("unknown command-line arg")
      }
    }

    nextOption(Map(), args.toList)
  }

  def main(args: Array[String]): Unit = {
    val argMap = parseArgs(args)

    // start actor system worker node
    AmberRuntime.startActorWorker(argMap.get(Symbol("serverAddr")).asInstanceOf[Option[String]])
  }

}
