#
# Copyright 2018-2022 Elyra Authors
#
# 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.
#
import sys

import pytest

from elyra.pipeline.pipeline import GenericOperation
from elyra.pipeline.pipeline import Operation
from elyra.pipeline.pipeline import Pipeline


@pytest.fixture
def good_operation():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )
    return test_operation


@pytest.fixture
def good_pipeline():
    test_pipeline = Pipeline(
        id="Random-UUID-123123123123123", name="test-pipeline", runtime="kfp", runtime_config="default_kfp"
    )
    return test_pipeline


def test_create_operation_minimal(good_operation):
    test_operation = good_operation

    assert test_operation.id == "test-id"
    assert test_operation.type == "execution-node"
    assert test_operation.classifier == "execute-notebook-node"
    assert test_operation.name == "test"
    assert test_operation.filename == "elyra/pipeline/tests/resources/archive/test.ipynb"
    assert test_operation.runtime_image == "tensorflow/tensorflow:latest"
    assert test_operation.name == "test"


def test_create_operation_with_dependencies():
    dependencies = ["elyra/pipline/tests/resources", "elyra/pipline/tests/resources/archive"]

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "dependencies": dependencies,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.dependencies == dependencies


def test_create_operation_include_subdirectories():
    include_subdirectories = True

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "include_subdirectories": include_subdirectories,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.include_subdirectories == include_subdirectories


def test_create_operation_with_environmental_variables():
    env_variables = ['FOO="Bar"', 'BAR="Foo']

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "env_vars": env_variables,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.env_vars == env_variables


def test_create_operation_with_inputs():
    inputs = ["input1.txt", "input2.txt"]

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "inputs": inputs,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.inputs == inputs


def test_create_operation_with_outputs():
    outputs = ["output1.txt", "output2.txt"]

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "outputs": outputs,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.outputs == outputs


def test_create_operation_with_parent_operations():
    parent_operation_ids = ["id-123123-123123-123123", "id-456456-456456-456456"]

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        parent_operation_ids=parent_operation_ids,
        component_params=component_parameters,
    )

    assert test_operation.parent_operation_ids == parent_operation_ids


def test_create_operation_correct_naming():
    label = "test.ipynb"
    filename = "elyra/pipeline/tests/resources/archive/" + label

    component_parameters = {"filename": filename, "runtime_image": "tensorflow/tensorflow:latest"}
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name=label,
        component_params=component_parameters,
    )

    assert test_operation.name == label.split(".")[0]


def test_fail_create_operation_missing_id():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(TypeError):
        Operation(
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_create_operation_missing_type():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(TypeError):
        GenericOperation(
            id="test-id", classifier="execute-notebook-node", name="test", component_params=component_parameters
        )


def test_fail_create_operation_missing_classifier():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(TypeError):
        Operation(id="test-id", type="execution-node", name="test", component_params=component_parameters)


def test_fail_create_operation_missing_runtime_image():
    component_parameters = {"filename": "elyra/pipeline/tests/resources/archive/test.ipynb"}
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_create_operation_missing_name():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(TypeError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            component_params=component_parameters,
        )


def test_fail_operations_are_equal(good_operation):
    parent_operation_ids = ["id-123123-123123-123123", "id-456456-456456-456456"]
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    compare_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        parent_operation_ids=parent_operation_ids,
        component_params=component_parameters,
    )
    with pytest.raises(AssertionError):
        assert compare_operation == good_operation


def test_operations_are_equal(good_operation):
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    compare_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert compare_operation == good_operation


def test_create_pipeline_minimal(good_pipeline):
    test_pipeline = good_pipeline

    assert test_pipeline.id == "Random-UUID-123123123123123"
    assert test_pipeline.name == "test-pipeline"
    assert test_pipeline.runtime == "kfp"
    assert test_pipeline.runtime_config == "default_kfp"


def test_fail_create_pipeline_missing_id():
    with pytest.raises(TypeError):
        Pipeline(name="test-pipeline", runtime="kfp", runtime_config="default_kfp")


def test_fail_create_pipeline_missing_name():
    with pytest.raises(TypeError):
        Pipeline(id="Random-UUID-123123123123123", runtime="kfp", runtime_config="default_kfp")


def test_fail_create_pipeline_missing_runtime():
    with pytest.raises(TypeError):
        Pipeline(id="Random-UUID-123123123123123", name="test-pipeline", runtime_config="default_kfp")


def test_fail_create_pipeline_missing_runtime_config():
    with pytest.raises(TypeError):
        Pipeline(id="Random-UUID-123123123123123", name="test-pipeline", runtime="kfp")


def test_pipelines_are_equal(good_pipeline):
    compare_pipeline = Pipeline(
        id="Random-UUID-123123123123123", name="test-pipeline", runtime="kfp", runtime_config="default_kfp"
    )

    assert compare_pipeline == good_pipeline


def test_fail_pipelines_are_equal(good_pipeline):
    test_operations_dict = {"123123123": good_operation, "234234234": good_operation}

    compare_pipeline = Pipeline(
        id="Random-UUID-123123123123123", name="test-pipeline", runtime="kfp", runtime_config="default_kfp"
    )

    for key, operation in test_operations_dict.items():
        compare_pipeline.operations[key] = operation

    with pytest.raises(AssertionError):
        assert compare_pipeline == good_pipeline


def test_env_list_to_dict_function():
    env_variables = [
        "KEY=value",
        None,
        "",
        "  =empty_key",
        "=no_key",
        "EMPTY_VALUE=  ",
        "NO_VALUE=",
        "KEY2=value2",
        "TWO_EQUALS=KEY=value",
        "==",
    ]
    env_variables_dict = {"KEY": "value", "KEY2": "value2", "TWO_EQUALS": "KEY=value"}

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "env_vars": env_variables,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.env_vars.to_dict() == env_variables_dict


def test_validate_resource_values():

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "cpu": "4",
        "gpu": "6",
        "memory": "10",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.cpu == "4"
    assert test_operation.gpu == "6"
    assert test_operation.memory == "10"


def test_validate_resource_values_as_none():

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.cpu is None
    assert test_operation.gpu is None
    assert test_operation.memory is None


def test_validate_gpu_accepts_zero_as_value():

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "cpu": "4",
        "gpu": "0",
        "memory": "10",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.gpu == "0"


def test_validate_max_resource_value():
    system_max_size = str(sys.maxsize - 1)

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "memory": system_max_size,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    test_operation = GenericOperation(
        id="test-id",
        type="execution-node",
        classifier="execute-notebook-node",
        name="test",
        component_params=component_parameters,
    )

    assert test_operation.memory == system_max_size


def test_fail_validate_max_resource_value_exceeded():
    system_max_size = str(sys.maxsize)

    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "memory": system_max_size,
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_creating_operation_with_negative_gpu_resources():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "gpu": "-1",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_creating_operation_with_0_cpu_resources():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "cpu": "0",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_creating_operation_with_negative_cpu_resources():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "cpu": "-1",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_creating_operation_with_0_memory_resources():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "memory": "0",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_fail_creating_operation_with_negative_memory_resources():
    component_parameters = {
        "filename": "elyra/pipeline/tests/resources/archive/test.ipynb",
        "memory": "-1",
        "runtime_image": "tensorflow/tensorflow:latest",
    }
    with pytest.raises(ValueError):
        GenericOperation(
            id="test-id",
            type="execution-node",
            classifier="execute-notebook-node",
            name="test",
            component_params=component_parameters,
        )


def test_scrub_list_function():
    env_variables_input = ["FOO=Bar", "BAR=Foo", None, ""]
    env_variables_output = ["FOO=Bar", "BAR=Foo"]

    assert Operation._scrub_list(env_variables_input) == env_variables_output
