# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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import yaml
import pytest


def test_servers_metadata_use_get_param(yaml_file):
    '''
    Check all defined nova server instances include
    metadata via the get_param function
    '''
    required_metadata = ["vnf_id", "vf_module_id"]

    with open(yaml_file) as fh:
        yml = yaml.load(fh)

    # skip if resources are not defined
    if "resources" not in yml:
        pytest.skip("No resources specified in the heat template")

    invalid_nova_servers = []

    for k1, v1 in yml["resources"].items():
        if "type" not in v1:
            continue
        if v1["type"] == "OS::Nova::Server":
            try:
                for k2, v2 in v1["properties"]["metadata"].items():
                    if (k2 in required_metadata and not
                            v2["get_param"] in required_metadata):
                        invalid_nova_servers.append(k1)
            except Exception as e:
                print(e)
                invalid_nova_servers.append(k1)

    assert not set(invalid_nova_servers)