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#!/usr/bin/python
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#
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# Copyright (C) 2006, 2007 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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# pylint: disable-msg=W0401,W0614
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# W0401: Wildcard import ganeti.cli
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# W0614: Unused import %s from wildcard import (since we need cli)
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import sys
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import simplejson
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import time
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from optparse import make_option
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from ganeti.cli import *
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from ganeti import cli
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from ganeti import opcodes
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from ganeti import constants
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from ganeti import utils
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from ganeti import errors
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def Delay(opts, args):
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  """Sleeps for a while
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  @param opts: the command line options selected by the user
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  @type args: list
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  @param args: should contain only one element, the duration
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      the sleep
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  @rtype: int
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  @return: the desired exit code
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  """
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  delay = float(args[0])
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  op = opcodes.OpTestDelay(duration=delay,
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                           on_master=opts.on_master,
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                           on_nodes=opts.on_nodes)
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  SubmitOpCode(op)
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  return 0
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def GenericOpCodes(opts, args):
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  """Send any opcode to the master.
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  @todo: The function is broken and needs to be converted to the
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      current job queue API
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  @param opts: the command line options selected by the user
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  @type args: list
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  @param args: should contain only one element, the path of
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      the file with the opcode definition
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  @rtype: int
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  @return: the desired exit code
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  """
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  cl = cli.GetClient()
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  jex = cli.JobExecutor(cl=cl)
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  for fname in args:
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    op_data = simplejson.loads(open(fname).read())
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    op_list = [opcodes.OpCode.LoadOpCode(val) for val in op_data]
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    jex.QueueJob("file %s" % fname, *op_list)
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  jex.GetResults()
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  return 0
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def TestAllocator(opts, args):
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  """Runs the test allocator opcode.
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  @param opts: the command line options selected by the user
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  @type args: list
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  @param args: should contain only one element, the iallocator name
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  @rtype: int
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  @return: the desired exit code
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  """
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  try:
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    disks = [{"size": utils.ParseUnit(val), "mode": 'w'}
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             for val in opts.disks.split(",")]
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  except errors.UnitParseError, err:
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    ToStderr("Invalid disks parameter '%s': %s", opts.disks, err)
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    return 1
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  nics = [val.split("/") for val in opts.nics.split(",")]
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  for row in nics:
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    while len(row) < 3:
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      row.append(None)
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    for i in range(3):
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      if row[i] == '':
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        row[i] = None
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  nic_dict = [{"mac": v[0], "ip": v[1], "bridge": v[2]} for v in nics]
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  if opts.tags is None:
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    opts.tags = []
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  else:
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    opts.tags = opts.tags.split(",")
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  op = opcodes.OpTestAllocator(mode=opts.mode,
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                               name=args[0],
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                               mem_size=opts.mem,
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                               disks=disks,
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                               disk_template=opts.disk_template,
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                               nics=nic_dict,
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                               os=opts.os_type,
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                               vcpus=opts.vcpus,
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                               tags=opts.tags,
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                               direction=opts.direction,
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                               allocator=opts.allocator,
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                               )
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  result = SubmitOpCode(op)
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  ToStdout("%s" % result)
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  return 0
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commands = {
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  'delay': (Delay, ARGS_ONE,
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            [DEBUG_OPT,
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             make_option("--no-master", dest="on_master", default=True,
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                         action="store_false",
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                         help="Do not sleep in the master code"),
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             make_option("-n", dest="on_nodes", default=[],
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                         action="append",
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                         help="Select nodes to sleep on"),
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             ],
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            "[opts...] <duration>", "Executes a TestDelay OpCode"),
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  'submit-job': (GenericOpCodes, ARGS_ATLEAST(1),
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                 [DEBUG_OPT,
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                  ],
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                 "<op_list_file...>", "Submits jobs built from json files"
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                 " containing a list of serialized opcodes"),
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  'allocator': (TestAllocator, ARGS_ONE,
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                [DEBUG_OPT,
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                 make_option("--dir", dest="direction",
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                             default="in", choices=["in", "out"],
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                             help="Show allocator input (in) or allocator"
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                             " results (out)"),
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                 make_option("--algorithm", dest="allocator",
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                             default=None,
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                             help="Allocator algorithm name"),
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                 make_option("-m", "--mode", default="relocate",
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                             choices=["relocate", "allocate"],
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                             help="Request mode, either allocate or"
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                             " relocate"),
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                 cli_option("--mem", default=128, type="unit",
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                            help="Memory size for the instance (MiB)"),
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                 make_option("--disks", default="4096,4096",
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                             help="Comma separated list of disk sizes (MiB)"),
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                 make_option("-t", "--disk-template", default="drbd",
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                             help="Select the disk template"),
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                 make_option("--nics", default="00:11:22:33:44:55",
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                             help="Comma separated list of nics, each nic"
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                             " definition is of form mac/ip/bridge, if"
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                             " missing values are replace by None"),
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                 make_option("-o", "--os-type", default=None,
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                             help="Select os for the instance"),
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                 make_option("-p", "--vcpus", default=1, type="int",
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                             help="Select number of VCPUs for the instance"),
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                 make_option("--tags", default=None,
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                             help="Comma separated list of tags"),
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                 ],
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                "{opts...} <instance>", "Executes a TestAllocator OpCode"),
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  }
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if __name__ == '__main__':
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  sys.exit(GenericMain(commands))