#!/usr/bin/python3

import argparse
import sys

def vmm_start(args):
        if args.v >= 1:
                print('Starting VM {0.vmid}.'.format(args))

def vmm_stop(args):
        if args.v >= 1:
                print('Stopping VM {0.vmid}.'.format(args))

def vmm_status(args):
        if args.v >= 2:
                print('Gathering status information for VM {0.vmid}.'.format(args))

def main():
        print("MC VM Manager v0.1\nCopyright (c) M. Hauschild, 2013.\n")

        parser = argparse.ArgumentParser(prog='bkvmm', description='Manages VMs')
        subparsers = parser.add_subparsers(title='subcommands')
        parser.add_argument('-v', action='count', default=0, help='increase verbosity')

        parser_start = subparsers.add_parser('start', help='starts a VM')
        parser_start.add_argument('vmid', action='store', help='the ID of the VM')
        parser_start.add_argument('-v', action='count', default=0, help='increase verbosity')
        parser_start.set_defaults(func=vmm_start)

        parser_stop = subparsers.add_parser('stop', help='stop a VM')
        parser_stop.add_argument('vmid', action='store', help='the ID of the VM')
        parser_stop.add_argument('-v', action='count', default=0, help='increase verbosity')
        parser_stop.set_defaults(func=vmm_stop)

        parser_status = subparsers.add_parser('status', help='statuss a VM')
        parser_status.add_argument('-v', action='count', help='increase verbosity')
        parser_status.add_argument('vmid', action='store', default=0, help='the ID of the VM')
        parser_status.set_defaults(func=vmm_status)

        args = parser.parse_args()
        args.func(args)

if __name__ == '__main__':
        main()