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


@validates("R-60011", "R-17528")
def test_nesting_level(yaml_files):
    errors = set()
    non_nested_files = [
        f for f in yaml_files if not nested_files.file_is_a_nested_template(f)
    ]
    heats = [Heat(f) for f in non_nested_files]
    for heat in heats:
        for depth, nested_heat in heat.iter_nested_heat():
            if depth >= 3:
                errors.add(
                    (
                        "{} is nested {} levels deep, but a maximum of {} levels are "
                        "supported."
                    ).format(nested_heat.basename, depth, nested_files.MAX_DEPTH)
                )
            if depth == 2 and nested_heat.resources:
                errors.add(
                    (
                        "{} is a second level nested file, but it includes "
                        "resources. Remove all Heat resources from this file."
                    ).format(nested_heat.basename)
                )
    assert not errors, "\n\n".join(errors)