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

from ansible import errors


def mountpoint_exists(data, mountpoint):
    try:
        for entry in data:
            if entry['mount_point'] == mountpoint:
                return True

        return False
    except Exception as e:
        raise errors.AnsibleFilterError("mountpoint_exists(): %s" % str(e))


def get_id_of_mountpoint(data, mountpoint):
    try:
        for entry in data:
            if entry['mount_point'] == mountpoint:
                return entry['mount_id']

        raise KeyError
    except Exception as e:
        raise errors.AnsibleFilterError("get_id_of_mountpoint(): %s" % str(e))


class FilterModule(object):

    ''' extract values from nextcloud '''
    filter_map = {
        'nextcloud_mountpoint_exists': mountpoint_exists,
        'nextcloud_get_id_of_mountpoint': get_id_of_mountpoint,
    }

    def filters(self):
        return self.filter_map