##############################################################################
# Copyright (c) 2017 ZTE Corp and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

from collections import namedtuple

from ansible.executor.playbook_executor import PlaybookExecutor
from ansible.inventory import Inventory
from ansible.parsing.dataloader import DataLoader
from ansible.vars import VariableManager


class AnsibleApi(object):

    def __init__(self):
        self.variable_manager = VariableManager()
        self.loader = DataLoader()
        self.passwords = {}
        self.playbook_executor = None

    def execute_playbook(self, playbook_path, hosts_file=None,
                         key_file=None, extra_vars=None):
        inventory = Inventory(loader=self.loader,
                              variable_manager=self.variable_manager,
                              host_list=hosts_file)
        Options = namedtuple('Options',
                             ['listtags', 'listtasks', 'listhosts', 'syntax',
                              'connection', 'module_path', 'forks', 'remote_user',
                              'private_key_file', 'ssh_common_args', 'ssh_extra_args',
                              'sftp_extra_args', 'scp_extra_args', 'become',
                              'become_method', 'become_user', 'verbosity', 'check'])
        options = Options(listtags=False, listtasks=False, listhosts=False,
                          syntax=False, connection='ssh', module_path=None,
                          forks=100, remote_user='root', private_key_file=key_file,
                          ssh_common_args=None, ssh_extra_args=None, sftp_extra_args=None,
                          scp_extra_args=None, become=None, become_method=None,
                          become_user='root', verbosity=None, check=False)
        self.variable_manager.extra_vars = extra_vars

        self.playbook_executor = PlaybookExecutor(playbooks=[playbook_path],
                                                  inventory=inventory,
                                                  variable_manager=self.variable_manager,
                                                  loader=self.loader,
                                                  options=options,
                                                  passwords=self.passwords)
        return self.playbook_executor.run()

    def get_detail_playbook_stats(self):
        if self.playbook_executor:
            stats = self.playbook_executor._tqm._stats
            return map(lambda x: (x, stats.summarize(x)), stats.processed.keys())
        else:
            return None