# frozen_string_literal: true

# Copyright (c) 2018 Yegor Bugayenko
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the 'Software'), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

require 'concurrent'
require 'tempfile'
require_relative '../log'
require_relative '../remotes'
require_relative '../copies'
require_relative '../tax'
require_relative '../commands/merge'
require_relative '../commands/fetch'
require_relative '../commands/push'

# The emission control point.
# Author:: Yegor Bugayenko (yegor256@gmail.com)
# Copyright:: Copyright (c) 2018 Yegor Bugayenko
# License:: MIT
module Zold
  # The emission control poine
  class Emission
    def initialize(root)
      @root = root
    end

    def quota
      years = @root.age / (24 * 1024)
      1 - (2**-years)
    end

    def limit
      max = Amount::MAX
      Amount.new(zents: (max * quota).to_i)
    end

    def check
      return unless @root.root?
      allowed = limit * -1
      balance = @root.balance
      raise "The balance #{balance} of the root wallet is too low (max allowed: #{allowed})" if balance < allowed
    end
  end
end