# Copyright [2021] [Red Hat, Inc.]
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ansible_collections.kubernetes.core.plugins.module_utils.selector import (
    LabelSelectorFilter,
    Selector,
)

prod_definition = {
    "apiVersion": "v1",
    "kind": "Pod",
    "metadata": {
        "name": "test",
        "labels": {"environment": "production", "app": "nginx"},
    },
    "spec": {
        "containers": [
            {
                "name": "nginx",
                "image": "nginx:1.14.2",
                "command": ["/bin/sh", "-c", "sleep 10"],
            }
        ]
    },
}

no_label_definition = {
    "apiVersion": "v1",
    "kind": "Pod",
    "metadata": {"name": "test", "labels": {}},
    "spec": {
        "containers": [
            {
                "name": "nginx",
                "image": "nginx:1.14.2",
                "command": ["/bin/sh", "-c", "sleep 10"],
            }
        ]
    },
}

test_definition = {
    "apiVersion": "v1",
    "kind": "Pod",
    "metadata": {"name": "test", "labels": {"environment": "test", "app": "nginx"}},
    "spec": {
        "containers": [
            {
                "name": "nginx",
                "image": "nginx:1.15.2",
                "command": ["/bin/sh", "-c", "sleep 10"],
            }
        ]
    },
}


def test_selector_parser():
    f_selector = "environment==true"
    sel = Selector(f_selector)
    assert sel._operator == "in" and sel._data == ["true"] and sel._key == "environment"
    f_selector = "environment=true"
    sel = Selector(f_selector)
    assert sel._operator == "in" and sel._data == ["true"] and sel._key == "environment"
    f_selector = " environment  ==  true "
    sel = Selector(f_selector)
    assert sel._operator == "in" and sel._data == ["true"] and sel._key == "environment"
    f_selector = "environment!=false"
    sel = Selector(f_selector)
    assert (
        sel._operator == "notin"
        and sel._data == ["false"]
        and sel._key == "environment"
    )
    f_selector = "environment notin (true, false)"
    sel = Selector(f_selector)
    assert (
        sel._operator == "notin"
        and "true" in sel._data
        and "false" in sel._data
        and sel._key == "environment"
    )
    f_selector = "environment in (true, false)"
    sel = Selector(f_selector)
    assert (
        sel._operator == "in"
        and "true" in sel._data
        and "false" in sel._data
        and sel._key == "environment"
    )
    f_selector = "environmentin(true, false)"
    sel = Selector(f_selector)
    assert not sel._operator and not sel._data and sel._key == f_selector
    f_selector = "environment notin (true, false"
    sel = Selector(f_selector)
    assert not sel._operator and not sel._data and sel._key == f_selector
    f_selector = "!environment"
    sel = Selector(f_selector)
    assert sel._operator == "!" and not sel._data and sel._key == "environment"
    f_selector = "!  environment  "
    sel = Selector(f_selector)
    assert sel._operator == "!" and not sel._data and sel._key == "environment"


def test_label_selector_without_operator():
    label_selector = ["environment", "app"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)


def test_label_selector_equal_operator():
    label_selector = ["environment==test"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment=production"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment=production", "app==mongodb"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment=production", "app==nginx"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment", "app==nginx"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)


def test_label_selector_notequal_operator():
    label_selector = ["environment!=test"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment!=production"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment=production", "app!=mongodb"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment=production", "app!=nginx"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment", "app!=nginx"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)


def test_label_selector_conflicting_definition():
    label_selector = ["environment==test", "environment!=test"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment==test", "environment==production"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)


def test_set_based_requirement():
    label_selector = ["environment in (production)"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment in (production, test)"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment notin (production)"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment notin (production, test)"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["environment"]
    assert LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert LabelSelectorFilter(label_selector).isMatching(test_definition)
    label_selector = ["!environment"]
    assert not LabelSelectorFilter(label_selector).isMatching(prod_definition)
    assert LabelSelectorFilter(label_selector).isMatching(no_label_definition)
    assert not LabelSelectorFilter(label_selector).isMatching(test_definition)