# -*- coding: utf-8 -*-
'''
Powerpath configuration support
===============================

Allows configuration of EMC Powerpath.  Currently
only addition/deletion of licenses is supported.

.. code-block:: yaml

    key:
      powerpath.license_present: []
'''


def license_present(name):
    '''
    Ensures that the specified PowerPath license key is present
    on the host.

    name
        The license key to ensure is present
    '''
    ret = {'name': name,
           'changes': {},
           'result': False,
           'comment': ''}

    if not __salt__['powerpath.has_powerpath']():
        ret['result'] = False
        ret['comment'] = 'PowerPath is not installed.'
        return ret

    licenses = [l['key'] for l in __salt__['powerpath.list_licenses']()]

    if name in licenses:
        ret['result'] = True
        ret['comment'] = 'License key {0} already present'.format(name)
        return ret

    if __opts__['test']:
        ret['result'] = None
        ret['comment'] = 'License key {0} is set to be added'.format(name)
        return ret

    data = __salt__['powerpath.add_license'](name)
    if data['result']:
        ret['changes'] = {name: 'added'}
        ret['result'] = True
        ret['comment'] = data['output']
        return ret
    else:
        ret['result'] = False
        ret['comment'] = data['output']
        return ret


def license_absent(name):
    '''
    Ensures that the specified PowerPath license key is absent
    on the host.

    name
        The license key to ensure is absent
    '''
    ret = {'name': name,
           'changes': {},
           'result': False,
           'comment': ''}

    if not __salt__['powerpath.has_powerpath']():
        ret['result'] = False
        ret['comment'] = 'PowerPath is not installed.'
        return ret

    licenses = [l['key'] for l in __salt__['powerpath.list_licenses']()]

    if name not in licenses:
        ret['result'] = True
        ret['comment'] = 'License key {0} not present'.format(name)
        return ret

    if __opts__['test']:
        ret['result'] = None
        ret['comment'] = 'License key {0} is set to be removed'.format(name)
        return ret

    data = __salt__['powerpath.remove_license'](name)
    if data['result']:
        ret['changes'] = {name: 'removed'}
        ret['result'] = True
        ret['comment'] = data['output']
        return ret
    else:
        ret['result'] = False
        ret['comment'] = data['output']
        return ret
