# 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/>.

from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

import os
import re

from ansible.module_utils.facts.virtual.base import Virtual, VirtualCollector


class HPUXVirtual(Virtual):
    """
    This is a HP-UX specific subclass of Virtual. It defines
    - virtualization_type
    - virtualization_role
    """
    platform = 'HP-UX'

    def get_virtual_facts(self):
        virtual_facts = {}
        host_tech = set()
        guest_tech = set()

        if os.path.exists('/usr/sbin/vecheck'):
            rc, out, err = self.module.run_command("/usr/sbin/vecheck")
            if rc == 0:
                guest_tech.add('HP vPar')
                virtual_facts['virtualization_type'] = 'guest'
                virtual_facts['virtualization_role'] = 'HP vPar'
        if os.path.exists('/opt/hpvm/bin/hpvminfo'):
            rc, out, err = self.module.run_command("/opt/hpvm/bin/hpvminfo")
            if rc == 0 and re.match('.*Running.*HPVM vPar.*', out):
                guest_tech.add('HPVM vPar')
                virtual_facts['virtualization_type'] = 'guest'
                virtual_facts['virtualization_role'] = 'HPVM vPar'
            elif rc == 0 and re.match('.*Running.*HPVM guest.*', out):
                guest_tech.add('HPVM IVM')
                virtual_facts['virtualization_type'] = 'guest'
                virtual_facts['virtualization_role'] = 'HPVM IVM'
            elif rc == 0 and re.match('.*Running.*HPVM host.*', out):
                guest_tech.add('HPVM')
                virtual_facts['virtualization_type'] = 'host'
                virtual_facts['virtualization_role'] = 'HPVM'
        if os.path.exists('/usr/sbin/parstatus'):
            rc, out, err = self.module.run_command("/usr/sbin/parstatus")
            if rc == 0:
                guest_tech.add('HP nPar')
                virtual_facts['virtualization_type'] = 'guest'
                virtual_facts['virtualization_role'] = 'HP nPar'

        virtual_facts['virtualization_tech_guest'] = guest_tech
        virtual_facts['virtualization_tech_host'] = host_tech
        return virtual_facts


class HPUXVirtualCollector(VirtualCollector):
    _fact_class = HPUXVirtual
    _platform = 'HP-UX'