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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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import sys
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from optparse import make_option
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from ganeti.cli import *
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from ganeti import opcodes
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from ganeti import logger
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from ganeti import utils
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def AddNode(opts, args):
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  """Add node cli-to-processor bridge."""
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  op = opcodes.OpAddNode(node_name=args[0], secondary_ip=opts.secondary_ip)
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  SubmitOpCode(op)
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def ListNodes(opts, args):
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  """List nodes and their properties.
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  """
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  if opts.output is None:
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    selected_fields = ["name", "dtotal", "dfree",
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                       "mtotal", "mnode", "mfree",
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                       "pinst_cnt", "sinst_cnt"]
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  else:
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    selected_fields = opts.output.split(",")
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  op = opcodes.OpQueryNodes(output_fields=selected_fields, names=[])
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  output = SubmitOpCode(op)
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  if not opts.no_headers:
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    headers = {"name": "Node", "pinst_cnt": "Pinst", "sinst_cnt": "Sinst",
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               "pinst_list": "PriInstances", "sinst_list": "SecInstances",
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               "pip": "PrimaryIP", "sip": "SecondaryIP",
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               "dtotal": "DTotal", "dfree": "DFree",
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               "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree"}
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  else:
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    headers = None
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  if opts.human_readable:
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    unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
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  else:
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    unitfields = None
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  numfields = ["dtotal", "dfree",
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               "mtotal", "mnode", "mfree",
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               "pinst_cnt", "sinst_cnt"]
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  # change raw values to nicer strings
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  for row in output:
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    for idx, field in enumerate(selected_fields):
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      val = row[idx]
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      if field == "pinst_list":
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        val = ",".join(val)
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      elif field == "sinst_list":
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        val = ",".join(val)
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      elif val is None:
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        val = "?"
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      row[idx] = str(val)
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  data = GenerateTable(separator=opts.separator, headers=headers,
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                       fields=selected_fields, unitfields=unitfields,
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                       numfields=numfields, data=output)
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  for line in data:
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    logger.ToStdout(line)
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  return 0
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def ShowNodeConfig(opts, args):
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  """Show node information.
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  """
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  op = opcodes.OpQueryNodes(output_fields=["name", "pip", "sip",
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                                           "pinst_list", "sinst_list"],
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                            names=args)
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  result = SubmitOpCode(op)
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  for name, primary_ip, secondary_ip, pinst, sinst in result:
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    logger.ToStdout("Node name: %s" % name)
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    logger.ToStdout("  primary ip: %s" % primary_ip)
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    logger.ToStdout("  secondary ip: %s" % secondary_ip)
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    if pinst:
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      logger.ToStdout("  primary for instances:")
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      for iname in pinst:
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        logger.ToStdout("    - %s" % iname)
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    else:
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      logger.ToStdout("  primary for no instances")
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    if sinst:
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      logger.ToStdout("  secondary for instances:")
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      for iname in sinst:
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        logger.ToStdout("    - %s" % iname)
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    else:
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      logger.ToStdout("  secondary for no instances")
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  return 0
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def RemoveNode(opts, args):
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  """Remove node cli-to-processor bridge."""
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  op = opcodes.OpRemoveNode(node_name=args[0])
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  SubmitOpCode(op)
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def ListVolumes(opts, args):
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  """List logical volumes on node(s).
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  """
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  if opts.output is None:
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    selected_fields = ["node", "phys", "vg",
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                       "name", "size", "instance"]
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  else:
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    selected_fields = opts.output.split(",")
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  op = opcodes.OpQueryNodeVolumes(nodes=args, output_fields=selected_fields)
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  output = SubmitOpCode(op)
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  if not opts.no_headers:
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    headers = {"node": "Node", "phys": "PhysDev",
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               "vg": "VG", "name": "Name",
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               "size": "Size", "instance": "Instance"}
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  else:
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    headers = None
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  if opts.human_readable:
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    unitfields = ["size"]
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  else:
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    unitfields = None
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  numfields = ["size"]
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  data = GenerateTable(separator=opts.separator, headers=headers,
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                       fields=selected_fields, unitfields=unitfields,
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                       numfields=numfields, data=output)
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  for line in data:
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    logger.ToStdout(line)
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  return 0
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commands = {
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  'add': (AddNode, ARGS_ONE,
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          [DEBUG_OPT,
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           make_option("-s", "--secondary-ip", dest="secondary_ip",
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                       help="Specify the secondary ip for the node",
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                       metavar="ADDRESS", default=None),],
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          "<node_name>", "Add a node to the cluster"),
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  'info': (ShowNodeConfig, ARGS_ANY, [DEBUG_OPT],
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           "[<node_name>...]", "Show information about the node(s)"),
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  'list': (ListNodes, ARGS_NONE,
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           [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
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           "", "Lists the nodes in the cluster"),
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  'remove': (RemoveNode, ARGS_ONE, [DEBUG_OPT],
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             "<node_name>", "Removes a node from the cluster"),
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  'volumes': (ListVolumes, ARGS_ANY,
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              [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
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              "[<node_name>...]", "List logical volumes on node(s)"),
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  }
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if __name__ == '__main__':
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  sys.exit(GenericMain(commands))