# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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from .helpers import validates

import yaml
import pytest


@validates('R-37437', 'R-71493', 'R-72483')
def test_servers_have_required_metadata(yaml_file):
    '''
    Check all defined nova server instances have the required metadata:
    vnf_id and vf_module_id
    '''
    with open(yaml_file) as fh:
        yml = yaml.load(fh)

    # Check if the param vm_role is defined
    if "resources" not in yml:
        pytest.skip("No resources specified in the heat template")

    required_metadata = ["vnf_id", "vf_module_id", "vnf_name"]

    invalid_nova_servers = []
    for k, v in yml["resources"].items():
        if v.get("type") != "OS::Nova::Server":
            continue
        if 'properties' not in v:
            continue
        if 'metadata' not in v['properties']:
            continue

        # do not add the server if it has the required metadata
        if set(required_metadata) <= set(v["properties"]["metadata"].keys()):
            continue
        invalid_nova_servers.append(k)

    assert not set(invalid_nova_servers)