class Fission::Command::SnapshotRevert

def execute
  super
  incorrect_arguments unless @args.count == 2
  vm = VM.new @args[0]
  snap_name = @args[1]
  output "Reverting to snapshot '#{snap_name}'"
  response = vm.revert_to_snapshot snap_name
  if response.successful?
    output "Reverted to snapshot '#{snap_name}'"
  else
    output_and_exit "There was an error reverting to the snapshot.  The error was:\n#{response.message}", response.code
  end
end

def option_parser
  optparse = OptionParser.new do |opts|
    opts.banner = "Usage: fission snapshot revert TARGET_VM TARGET_SNAPSHOT"
    opts.separator ''
    opts.separator 'Reverts TARGET_VM to TARGET_SNAPSHOT'
  end
  optparse
end

def summary
  'Revert a VM to a snapshot'
end