#!/usr/bin/python -tt
# (C) 2012, Michael DeHaan, <michael.dehaan@gmail.com>

# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.

#######################################################

import sys
import getpass
from optparse import OptionParser

import ansible.playbook
import ansible.constants as C
from ansible import errors
from ansible import utils

#######################################################

class PlaybookCallbacks(object):
  
    def __init__(self):
        pass

    def set_playbook(self, playbook):
        self.playbook = playbook

    def on_start(self):
        print "\n"

    def on_task_start(self, name, is_conditional):
        print utils.task_start_msg(name, is_conditional)

    def on_setup_primary(self):
        print "SETUP PHASE ****************************\n"
    
    def on_setup_secondary(self):
        print "\nVARIABLE IMPORT PHASE ******************\n"

    def on_unreachable(self, host, msg):
        print "unreachable: [%s] => %s" % (host, msg)

    def on_failed(self, host, results):
        invocation = results.get('invocation',None)
        if not invocation or invocation.startswith('setup ') or invocation.startswith('async_status '):
            print "failed: [%s] => %s\n" % (host, utils.smjson(results))
        else: 
            print "failed: [%s] => %s => %s\n" % (host, invocation, utils.smjson(results))

    def on_ok(self, host, host_result):
        invocation = host_result.get('invocation',None)
        if not invocation or invocation.startswith('setup ') or invocation.startswith('async_status '):
            print "ok: [%s]\n" % (host)
        else:
            print "ok: [%s] => %s\n" % (host, invocation)

    def on_import_for_host(self, host, imported_file):
        print "%s: importing %s" % (host, imported_file)

    def on_not_import_for_host(self, host, missing_file):
        print "%s: not importing file: %s" % (host, missing_file)

    def on_play_start(self, pattern):
        print "PLAY [%s] ****************************\n" % pattern

    def on_async_confused(self, msg):
        print msg

    def on_async_poll(self, jid, host, clock, host_result):
        print utils.async_poll_status(jid, host, clock, host_result)

    def on_dark_host(self, host, msg):
        print "exception: [%s] => %s" % (host, msg)

def summarize(results):
    ''' print out per host statistics '''

    print "PLAY RECAP ******************************\n"

    hosts = sorted(results.keys())
    for host in hosts:
        print "%s : %s" % (host, utils.smjson(results[host]))

def main(args):
    ''' run ansible-playbook operations '''

    # create parser for CLI options
    parser = OptionParser()
    parser.usage = "ans-playbook playbook.yml ..."
    parser.add_option('-f','--forks', dest='forks', default=C.DEFAULT_FORKS, type='int',
        help='set the number of forks to start up')
    parser.add_option("-i", "--inventory-file", dest="inventory",
        help="inventory host file", default=C.DEFAULT_HOST_LIST)
    parser.add_option("-k", "--ask-pass", default=False, action="store_true",
        help="ask for SSH password")
    parser.add_option("-M", "--module-path", dest="module_path",
        help="path to module library", default=C.DEFAULT_MODULE_PATH)
    parser.add_option('-T', '--timeout', default=C.DEFAULT_TIMEOUT, type='int',
        dest='timeout', help="set the SSH timeout in seconds")

    options, args = parser.parse_args(args)

    if len(args) == 0:
        print >> sys.stderr, "playbook path is a required argument"
        return 1

    sshpass = None
    if options.ask_pass:
        sshpass = getpass.getpass(prompt="SSH password: ")

    # run all playbooks specified on the command line
    for playbook in args:
        pb = ansible.playbook.PlayBook(
            playbook=playbook,
            host_list=options.inventory,
            module_path=options.module_path,
            forks=options.forks,
            verbose=True,
            remote_pass=sshpass,
            callbacks=PlaybookCallbacks(),
            timeout=options.timeout
        )
        try:
            results = pb.run()
            summarize(results)
        except errors.AnsibleError, e:
            print >>sys.stderr, "ERROR: %s" % e
            return 1

    return 0


if __name__ == "__main__":
    try:
        sys.exit(main(sys.argv[1:]))
    except errors.AnsibleError, e:
        print >>sys.stderr, "ERROR: %s" % e
        sys.exit(1)