# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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# Unless otherwise specified, all documentation contained herein is licensed
# under the Creative Commons License, Attribution 4.0 Intl. (the "License");
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"""test
"""
import pytest
from tests import cached_yaml as yaml

from tests.helpers import validates
from tests.utils.nested_files import file_is_a_nested_template

VERSION = "1.1.0"


def check_parameter_type(heat_template, parameter, parameter_type):
    """
    Make sure these OS::Nova::Server parameters are defined w/
    the correct type
    """

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

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

    invalid_parameters = []

    for k1, v1 in yml["parameters"].items():
        if not isinstance(v1, dict):
            continue
        if "type" not in v1:
            continue

        if k1.find(parameter) == -1:
            continue

        param_type = v1.get("type")

        if not param_type:
            continue

        if param_type != parameter_type:
            invalid_parameters.append(k1)

    assert (
        not invalid_parameters
    ), "{} parameters must be defined as type {}: {}".format(
        parameter, parameter_type, invalid_parameters
    )


def check_server_parameter_name(heat_template, parameter, parameter_name):
    """
    Check each OS::Nova::Server metadata property
    uses the same parameter name w/ get_param
    """

    with open(heat_template) 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_parameters = []

    for k1, v1 in yml["resources"].items():
        if not isinstance(v1, dict):
            continue
        if "type" not in v1:
            continue

        if v1["type"] != "OS::Nova::Server":
            continue

        metadata = v1.get("properties", {}).get("metadata", {}).get(parameter)

        if not metadata or not isinstance(metadata, dict):
            continue

        get_param = metadata.get("get_param")

        if not get_param:
            continue

        if get_param != parameter_name:
            invalid_parameters.append(
                {
                    "resource": k1,
                    "metadata property": parameter_name,
                    "get_param": get_param,
                }
            )

    assert not invalid_parameters, (
        "metadata property {} must use get_param and "
        "the parameter name must be {}: {}".format(
            parameter, parameter_name, invalid_parameters
        )
    )


@validates("R-23311")
def test_availability_zone_parameter_type(yaml_file):
    if file_is_a_nested_template(yaml_file):
        pytest.skip("Not applicable in nested templates")
    check_parameter_type(yaml_file, "availability_zone_", "string")


@validates("R-07507")
def test_vnf_id_parameter_type_and_parameter_name(yaml_file):
    check_parameter_type(yaml_file, "vnf_id", "string")
    check_server_parameter_name(yaml_file, "vnf_id", "vnf_id")


@validates("R-82134")
def test_vf_module_id_parameter_type_and_parameter_name(yaml_file):
    check_parameter_type(yaml_file, "vf_module_id", "string")
    check_server_parameter_name(yaml_file, "vf_module_id", "vf_module_id")


@validates("R-62428")
def test_vnf_name_parameter_type_and_parameter_name(yaml_file):
    check_parameter_type(yaml_file, "vnf_name", "string")
    check_server_parameter_name(yaml_file, "vnf_name", "vnf_name")


@validates("R-39067")
def test_vf_module_name_parameter_type_and_parameter_name(yaml_file):
    check_parameter_type(yaml_file, "vf_module_name", "string")
    check_server_parameter_name(yaml_file, "vf_module_name", "vf_module_name")


@validates("R-54340")
def test_vf_module_index_parameter_type_and_parameter_name(yaml_file):
    check_parameter_type(yaml_file, "vf_module_index", "number")
    check_server_parameter_name(yaml_file, "vf_module_index", "vf_module_index")