#!/usr/bin/env python3
# -*- encoding: utf-8 -*-

#  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.

'''resources.py: module for defining resources'''

class Resources:
  """Resources needed by the topology are encapsulated in this class.
     Currently we deal with CPU and RAM. Others can be added later.
  """
  def __init__(self):
    self._cpu = 0.0
    self._ram = 0

  def set_cpu(self, cpu):
    self._cpu = float(cpu)
    return self

  def set_ram(self, ram):
    self._ram = int(ram)
    return self

  def get_cpu(self):
    return self._cpu

  def get_ram(self):
    return self._ram

  def set_ram_in_mb(self, ram):
    return self.set_ram(ram * 1024 * 1024)

  def set_ram_in_gb(self, ram):
    return self.set_ram_in_mb(ram * 1024)

  def __repr__(self):
    return f'Resource {{cpu: {self._cpu}, ram: {self._ram}}}'