import logging
import os
import re
import tempfile
from random import randint
from typing import Iterable, List, Optional, Union

import pydantic
import pytest

from datahub.api.entities.dataset.dataset import Dataset
from datahub.api.entities.structuredproperties.structuredproperties import (
    StructuredProperties,
)
from datahub.configuration.common import GraphError, OperationalError
from datahub.emitter.mce_builder import make_dataset_urn, make_schema_field_urn
from datahub.emitter.mcp import MetadataChangeProposalWrapper
from datahub.ingestion.graph.client import DataHubGraph
from datahub.metadata.schema_classes import (
    EntityTypeInfoClass,
    PropertyValueClass,
    StructuredPropertiesClass,
    StructuredPropertyDefinitionClass,
    StructuredPropertyValueAssignmentClass,
)
from datahub.specific.dataset import DatasetPatchBuilder
from datahub.utilities.urns.structured_properties_urn import StructuredPropertyUrn
from datahub.utilities.urns.urn import Urn
from tests.consistency_utils import wait_for_writes_to_sync
from tests.utilities.file_emitter import FileEmitter
from tests.utils import (
    delete_urns,
    delete_urns_from_file,
    get_sleep_info,
    ingest_file_via_rest,
)

logger = logging.getLogger(__name__)

start_index = randint(10, 10000)
dataset_urns = [
    make_dataset_urn("snowflake", f"table_foo_{i}")
    for i in range(start_index, start_index + 10)
]

schema_field_urns = [
    make_schema_field_urn(dataset_urn, "column_1") for dataset_urn in dataset_urns
]

generated_urns = [d for d in dataset_urns] + [f for f in schema_field_urns]


default_namespace = "io.acryl.privacy"


def create_logical_entity(
    entity_name: str,
) -> Iterable[MetadataChangeProposalWrapper]:
    mcp = MetadataChangeProposalWrapper(
        entityUrn="urn:li:entityType:" + entity_name,
        aspect=EntityTypeInfoClass(
            qualifiedName="io.datahubproject." + entity_name,
            displayName=entity_name,
        ),
    )
    return [mcp]


def create_test_data(filename: str):
    file_emitter = FileEmitter(filename)
    for mcps in create_logical_entity("dataset"):
        file_emitter.emit(mcps)

    file_emitter.close()
    wait_for_writes_to_sync()


sleep_sec, sleep_times = get_sleep_info()


@pytest.fixture(scope="module")
def ingest_cleanup_data(auth_session, graph_client, request):
    new_file, filename = tempfile.mkstemp()
    try:
        create_test_data(filename)
        print("ingesting structured properties test data")
        ingest_file_via_rest(auth_session, filename)
        yield
        print("removing structured properties test data")
        delete_urns_from_file(graph_client, filename)
        delete_urns(graph_client, generated_urns)
        wait_for_writes_to_sync()
    finally:
        os.remove(filename)


def create_property_definition(
    property_name: str,
    graph: DataHubGraph,
    namespace: str = default_namespace,
    value_type: str = "string",
    cardinality: str = "SINGLE",
    allowed_values: Optional[List[PropertyValueClass]] = None,
    entity_types: Optional[List[str]] = None,
):
    structured_property_definition = StructuredPropertyDefinitionClass(
        qualifiedName=f"{namespace}.{property_name}",
        valueType=Urn.make_data_type_urn(value_type),
        description="The retention policy for the dataset",
        entityTypes=(
            [Urn.make_entity_type_urn(e) for e in entity_types]
            if entity_types
            else [Urn.make_entity_type_urn("dataset")]
        ),
        cardinality=cardinality,
        allowedValues=allowed_values,
    )

    mcp = MetadataChangeProposalWrapper(
        entityUrn=f"urn:li:structuredProperty:{namespace}.{property_name}",
        aspect=structured_property_definition,
    )
    graph.emit(mcp)
    wait_for_writes_to_sync()


def attach_property_to_entity(
    urn: str,
    property_name: str,
    property_value: Union[str, float, List[Union[str, float]]],
    graph: DataHubGraph,
    namespace: str = default_namespace,
):
    if isinstance(property_value, list):
        property_values: List[Union[str, float]] = property_value
    else:
        property_values = [property_value]

    mcp = MetadataChangeProposalWrapper(
        entityUrn=urn,
        aspect=StructuredPropertiesClass(
            properties=[
                StructuredPropertyValueAssignmentClass(
                    propertyUrn=f"urn:li:structuredProperty:{namespace}.{property_name}",
                    values=property_values,
                )
            ]
        ),
    )
    graph.emit_mcp(mcp)
    wait_for_writes_to_sync()


def get_property_from_entity(
    urn: str,
    property_name: str,
    graph: DataHubGraph,
):
    structured_properties: Optional[StructuredPropertiesClass] = graph.get_aspect(
        urn, StructuredPropertiesClass
    )
    assert structured_properties is not None
    for property in structured_properties.properties:
        if property.propertyUrn == f"urn:li:structuredProperty:{property_name}":
            return property.values
    return None


def to_es_filter_name(
    property_name=None, namespace=default_namespace, qualified_name=None
):
    if property_name:
        return f"structuredProperties.{namespace}.{property_name}"
    else:
        return f"structuredProperties.{qualified_name}"


def test_structured_property_string(ingest_cleanup_data, graph_client):
    property_name = f"retention{randint(10, 10000)}Policy"

    create_property_definition(property_name, graph_client)

    attach_property_to_entity(
        dataset_urns[0], property_name, ["30d"], graph=graph_client
    )

    with pytest.raises(OperationalError):
        # Cannot add a number to a string property.
        attach_property_to_entity(
            dataset_urns[0], property_name, 200030, graph=graph_client
        )


def test_structured_property_double(ingest_cleanup_data, graph_client):
    property_name = f"expiryTime{randint(10, 10000)}"

    create_property_definition(property_name, graph_client, value_type="number")

    attach_property_to_entity(
        dataset_urns[0], property_name, 2000034, graph=graph_client
    )

    with pytest.raises(OperationalError):
        # Cannot add a string to a number property.
        attach_property_to_entity(
            dataset_urns[0], property_name, "30 days", graph=graph_client
        )

    with pytest.raises(OperationalError):
        # Cannot add a list to a number property.
        attach_property_to_entity(
            dataset_urns[0], property_name, [2000034, 2000035], graph=graph_client
        )


def test_structured_property_double_multiple(ingest_cleanup_data, graph_client):
    property_name = f"versions{randint(10, 10000)}"

    create_property_definition(
        property_name, graph_client, value_type="number", cardinality="MULTIPLE"
    )

    attach_property_to_entity(
        dataset_urns[0], property_name, [1.0, 2.0], graph=graph_client
    )


def test_structured_property_string_allowed_values(ingest_cleanup_data, graph_client):
    property_name = f"enumProperty{randint(10, 10000)}"

    create_property_definition(
        property_name,
        graph_client,
        value_type="string",
        cardinality="MULTIPLE",
        allowed_values=[
            PropertyValueClass(value="foo"),
            PropertyValueClass(value="bar"),
        ],
    )

    attach_property_to_entity(
        dataset_urns[0], property_name, ["foo", "bar"], graph=graph_client
    )

    with pytest.raises(
        OperationalError, match=re.escape("value: {string=baz} should be one of [")
    ):
        # Cannot add a value that isn't in the allowed values list.
        attach_property_to_entity(
            dataset_urns[0], property_name, ["foo", "baz"], graph=graph_client
        )


def test_structured_property_definition_evolution(ingest_cleanup_data, graph_client):
    property_name = f"enumProperty{randint(10, 10000)}"

    create_property_definition(
        property_name,
        graph_client,
        value_type="string",
        cardinality="MULTIPLE",
        allowed_values=[
            PropertyValueClass(value="foo"),
            PropertyValueClass(value="bar"),
        ],
    )

    with pytest.raises(OperationalError):
        # Cannot change cardinality from MULTIPLE to SINGLE.
        create_property_definition(
            property_name,
            graph_client,
            value_type="string",
            cardinality="SINGLE",
            allowed_values=[
                PropertyValueClass(value="foo"),
                PropertyValueClass(value="bar"),
            ],
        )


def test_structured_property_schema_field(ingest_cleanup_data, graph_client):
    property_name = f"deprecationDate{randint(10, 10000)}"

    create_property_definition(
        property_name,
        graph_client,
        namespace="io.datahubproject.test",
        value_type="date",
        entity_types=["schemaField"],
    )

    attach_property_to_entity(
        schema_field_urns[0],
        property_name,
        "2020-10-01",
        graph=graph_client,
        namespace="io.datahubproject.test",
    )

    assert get_property_from_entity(
        schema_field_urns[0],
        f"io.datahubproject.test.{property_name}",
        graph=graph_client,
    ) == ["2020-10-01"]

    with pytest.raises(OperationalError):
        # Cannot add a number to a date property.
        attach_property_to_entity(
            schema_field_urns[0],
            property_name,
            200030,
            graph=graph_client,
            namespace="io.datahubproject.test",
        )


def test_structured_properties_yaml_load_with_bad_entity_type(
    ingest_cleanup_data, graph_client
):
    with pytest.raises(
        pydantic.ValidationError,
        match="urn:li:entityType:dataset is not a valid entity type urn",
    ):
        StructuredProperties.create(
            "tests/structured_properties/bad_entity_type.yaml",
            graph=graph_client,
        )


def test_dataset_yaml_loader(ingest_cleanup_data, graph_client):
    StructuredProperties.create(
        "tests/structured_properties/test_structured_properties.yaml",
        graph=graph_client,
    )

    for dataset in Dataset.from_yaml("tests/structured_properties/test_dataset.yaml"):
        for mcp in dataset.generate_mcp():
            graph_client.emit(mcp)
    wait_for_writes_to_sync()

    property_name = "io.acryl.dataManagement.deprecationDate"
    field_name = "[version=2.0].[type=ClickEvent].[type=string].ip"
    assert get_property_from_entity(
        make_schema_field_urn(make_dataset_urn("hive", "user.clicks"), field_name),
        property_name,
        graph=graph_client,
    ) == ["2023-01-01"]

    dataset = Dataset.from_datahub(
        graph=graph_client,
        urn="urn:li:dataset:(urn:li:dataPlatform:hive,user.clicks,PROD)",
    )
    assert dataset.schema_metadata is not None
    assert dataset.schema_metadata.fields is not None
    matching_fields = [
        f
        for f in dataset.schema_metadata.fields
        if f.id is not None and f.id == Dataset._simplify_field_path(field_name)
    ]
    assert len(matching_fields) == 1
    assert matching_fields[0].structured_properties is not None
    assert (
        matching_fields[0].structured_properties[
            "io.acryl.dataManagement.deprecationDate"
        ]
        == "2023-01-01"
    )


def test_structured_property_search(
    ingest_cleanup_data, graph_client: DataHubGraph, caplog
):
    # Attach structured property to entity and to field
    field_property_name = f"deprecationDate{randint(10, 10000)}"

    create_property_definition(
        namespace="io.datahubproject.test",
        property_name=field_property_name,
        graph=graph_client,
        value_type="date",
        entity_types=["schemaField"],
    )

    attach_property_to_entity(
        schema_field_urns[0],
        field_property_name,
        "2020-10-01",
        graph=graph_client,
        namespace="io.datahubproject.test",
    )
    dataset_property_name = f"replicationSLA{randint(10, 10000)}"
    property_value = 30
    value_type = "number"

    create_property_definition(
        property_name=dataset_property_name, graph=graph_client, value_type=value_type
    )

    attach_property_to_entity(
        dataset_urns[0], dataset_property_name, [property_value], graph=graph_client
    )

    # [] = default entities which includes datasets, does not include fields
    entity_urns = list(
        graph_client.get_urns_by_filter(
            extraFilters=[
                {
                    "field": to_es_filter_name(dataset_property_name),
                    "negated": "false",
                    "condition": "EXISTS",
                }
            ]
        )
    )
    assert len(entity_urns) == 1
    assert entity_urns[0] == dataset_urns[0]

    # Search over schema field specifically
    field_structured_prop = graph_client.get_aspect(
        entity_urn=schema_field_urns[0], aspect_type=StructuredPropertiesClass
    )
    assert field_structured_prop == StructuredPropertiesClass(
        properties=[
            StructuredPropertyValueAssignmentClass(
                propertyUrn=f"urn:li:structuredProperty:io.datahubproject.test.{field_property_name}",
                values=["2020-10-01"],
            )
        ]
    )

    # Search over entities that do not include the field
    field_urns = list(
        graph_client.get_urns_by_filter(
            entity_types=["tag"],
            extraFilters=[
                {
                    "field": to_es_filter_name(
                        field_property_name, namespace="io.datahubproject.test"
                    ),
                    "negated": "false",
                    "condition": "EXISTS",
                }
            ],
        )
    )
    assert len(field_urns) == 0

    # OR the two properties together to return both results
    field_urns = list(
        graph_client.get_urns_by_filter(
            entity_types=["dataset", "tag"],
            extraFilters=[
                {
                    "field": to_es_filter_name(dataset_property_name),
                    "negated": "false",
                    "condition": "EXISTS",
                }
            ],
        )
    )
    assert len(field_urns) == 1
    assert dataset_urns[0] in field_urns


def test_dataset_structured_property_patch(ingest_cleanup_data, graph_client, caplog):
    # Create 1st Property
    property_name = f"replicationSLA{randint(10, 10000)}"
    property_value1 = 30.0
    property_value2 = 100.0
    value_type = "number"
    cardinality = "MULTIPLE"

    create_property_definition(
        property_name=property_name,
        graph=graph_client,
        value_type=value_type,
        cardinality=cardinality,
    )

    # Create 2nd Property
    property_name_other = f"replicationSLAOther{randint(10, 10000)}"
    property_value_other = 200.0
    create_property_definition(
        property_name=property_name_other,
        graph=graph_client,
        value_type=value_type,
        cardinality=cardinality,
    )

    def patch_one(prop_name, prop_value):
        dataset_patcher: DatasetPatchBuilder = DatasetPatchBuilder(urn=dataset_urns[0])
        dataset_patcher.set_structured_property(
            StructuredPropertyUrn.make_structured_property_urn(
                f"{default_namespace}.{prop_name}"
            ),
            prop_value,
        )

        for mcp in dataset_patcher.build():
            graph_client.emit(mcp)
        wait_for_writes_to_sync()

    # Add 1 value for property 1
    patch_one(property_name, property_value1)

    actual_property_values = get_property_from_entity(
        dataset_urns[0], f"{default_namespace}.{property_name}", graph=graph_client
    )
    assert actual_property_values == [property_value1]

    # Add 1 value for property 2
    patch_one(property_name_other, property_value_other)

    actual_property_values = get_property_from_entity(
        dataset_urns[0],
        f"{default_namespace}.{property_name_other}",
        graph=graph_client,
    )
    assert actual_property_values == [property_value_other]

    # Add 2 values to property 1
    patch_one(property_name, [property_value1, property_value2])

    actual_property_values = set(
        get_property_from_entity(
            dataset_urns[0], f"{default_namespace}.{property_name}", graph=graph_client
        )
    )
    assert actual_property_values == {property_value1, property_value2}

    # Validate property 2 is the same
    actual_property_values = get_property_from_entity(
        dataset_urns[0],
        f"{default_namespace}.{property_name_other}",
        graph=graph_client,
    )
    assert actual_property_values == [property_value_other]


def test_dataset_structured_property_soft_delete_validation(
    ingest_cleanup_data, graph_client, caplog
):
    property_name = f"softDeleteTest{randint(10, 10000)}Property"
    value_type = "string"
    property_urn = f"urn:li:structuredProperty:{default_namespace}.{property_name}"

    create_property_definition(
        property_name=property_name,
        graph=graph_client,
        value_type=value_type,
        cardinality="SINGLE",
    )

    test_property = StructuredProperties.from_datahub(
        graph=graph_client, urn=property_urn
    )
    assert test_property is not None

    graph_client.soft_delete_entity(urn=property_urn)

    # Attempt to modify soft deleted definition
    with pytest.raises(
        OperationalError,
        match="Cannot mutate a soft deleted Structured Property Definition",
    ):
        create_property_definition(
            property_name=property_name,
            graph=graph_client,
            value_type=value_type,
            cardinality="SINGLE",
        )

    # Attempt to add soft deleted structured property to entity
    with pytest.raises(
        OperationalError, match="Cannot apply a soft deleted Structured Property value"
    ):
        attach_property_to_entity(
            dataset_urns[0], property_name, "test string", graph=graph_client
        )


def test_dataset_structured_property_soft_delete_read_mutation(
    ingest_cleanup_data, graph_client, caplog
):
    property_name = f"softDeleteReadTest{randint(10, 10000)}Property"
    value_type = "string"
    property_urn = f"urn:li:structuredProperty:{default_namespace}.{property_name}"
    property_value = "test string"

    # Create property on a dataset
    create_property_definition(
        property_name=property_name,
        graph=graph_client,
        value_type=value_type,
        cardinality="SINGLE",
    )
    attach_property_to_entity(
        dataset_urns[0], property_name, property_value, graph=graph_client
    )

    # Make sure it exists on the dataset
    actual_property_values = get_property_from_entity(
        dataset_urns[0], f"{default_namespace}.{property_name}", graph=graph_client
    )
    assert actual_property_values == [property_value]

    # Soft delete the structured property
    graph_client.soft_delete_entity(urn=property_urn)
    wait_for_writes_to_sync()

    # Make sure it is no longer returned on the dataset
    actual_property_values = get_property_from_entity(
        dataset_urns[0], f"{default_namespace}.{property_name}", graph=graph_client
    )
    assert actual_property_values is None


def test_dataset_structured_property_soft_delete_search_filter_validation(
    ingest_cleanup_data, graph_client: DataHubGraph, caplog: pytest.LogCaptureFixture
):
    # Create a test structured property
    dataset_property_name = f"softDeleteSearchFilter{randint(10, 10000)}"
    property_value = 30
    value_type = "number"
    property_urn = (
        f"urn:li:structuredProperty:{default_namespace}.{dataset_property_name}"
    )

    create_property_definition(
        property_name=dataset_property_name, graph=graph_client, value_type=value_type
    )
    attach_property_to_entity(
        dataset_urns[0], dataset_property_name, [property_value], graph=graph_client
    )

    # Perform search, make sure it works
    entity_urns = list(
        graph_client.get_urns_by_filter(
            extraFilters=[
                {
                    "field": to_es_filter_name(property_name=dataset_property_name),
                    "negated": "false",
                    "condition": "EXISTS",
                }
            ]
        )
    )
    assert len(entity_urns) == 1
    assert entity_urns[0] == dataset_urns[0]

    # Soft delete the structured property
    graph_client.soft_delete_entity(urn=property_urn)
    wait_for_writes_to_sync()

    # Perform search, make sure it validates filter and rejects as invalid request
    with pytest.raises(
        GraphError, match="Cannot filter on deleted Structured Property"
    ):
        list(
            graph_client.get_urns_by_filter(
                extraFilters=[
                    {
                        "field": to_es_filter_name(property_name=dataset_property_name),
                        "negated": "false",
                        "condition": "EXISTS",
                    }
                ]
            )
        )


def test_dataset_structured_property_delete(ingest_cleanup_data, graph_client, caplog):
    # Create property, assign value to target dataset urn
    def create_property(target_dataset, prop_value):
        property_name = f"hardDeleteTest{randint(10, 10000)}Property"
        value_type = "string"
        property_urn = f"urn:li:structuredProperty:{default_namespace}.{property_name}"

        create_property_definition(
            property_name=property_name,
            graph=graph_client,
            value_type=value_type,
            cardinality="SINGLE",
        )

        test_property = StructuredProperties.from_datahub(
            graph=graph_client, urn=property_urn
        )
        assert test_property is not None

        # assign
        dataset_patcher: DatasetPatchBuilder = DatasetPatchBuilder(urn=target_dataset)
        dataset_patcher.set_structured_property(
            StructuredPropertyUrn.make_structured_property_urn(property_urn),
            prop_value,
        )
        for mcp in dataset_patcher.build():
            graph_client.emit(mcp)

        return test_property

    # create and assign 2 structured properties with values
    property1 = create_property(dataset_urns[0], "foo")
    property2 = create_property(dataset_urns[0], "bar")
    wait_for_writes_to_sync()

    # validate #1 & #2 properties assigned
    assert get_property_from_entity(
        dataset_urns[0],
        property1.qualified_name,
        graph=graph_client,
    ) == ["foo"]
    assert get_property_from_entity(
        dataset_urns[0],
        property2.qualified_name,
        graph=graph_client,
    ) == ["bar"]

    def validate_search(qualified_name, expected):
        entity_urns = list(
            graph_client.get_urns_by_filter(
                extraFilters=[
                    {
                        "field": to_es_filter_name(qualified_name=qualified_name),
                        "negated": "false",
                        "condition": "EXISTS",
                    }
                ]
            )
        )
        assert entity_urns == expected

    # Validate search works for property #1 & #2
    validate_search(property1.qualified_name, expected=[dataset_urns[0]])
    validate_search(property2.qualified_name, expected=[dataset_urns[0]])

    # delete the structured property #1
    graph_client.hard_delete_entity(urn=property1.urn)
    wait_for_writes_to_sync()

    # validate property #1 deleted and property #2 remains
    assert (
        get_property_from_entity(
            dataset_urns[0],
            property1.qualified_name,
            graph=graph_client,
        )
        is None
    )
    assert get_property_from_entity(
        dataset_urns[0],
        property2.qualified_name,
        graph=graph_client,
    ) == ["bar"]

    # assert property 1 definition was removed
    property1_definition = graph_client.get_aspect(
        property1.urn, StructuredPropertyDefinitionClass
    )
    assert property1_definition is None

    wait_for_writes_to_sync()
    # Validate search works for property #1 & #2
    validate_search(property1.qualified_name, expected=[])
    validate_search(property2.qualified_name, expected=[dataset_urns[0]])


def test_structured_properties_list(ingest_cleanup_data, graph_client, caplog):
    # Create property, assign value to target dataset urn
    def create_property():
        property_name = f"listTest{randint(10, 10000)}Property"
        value_type = "string"
        property_urn = f"urn:li:structuredProperty:{default_namespace}.{property_name}"

        create_property_definition(
            property_name=property_name,
            graph=graph_client,
            value_type=value_type,
            cardinality="SINGLE",
        )

        test_property = StructuredProperties.from_datahub(
            graph=graph_client, urn=property_urn
        )
        assert test_property is not None

        return test_property

    # create 2 structured properties
    property1 = create_property()
    property2 = create_property()
    wait_for_writes_to_sync()

    # validate that urns are in the list
    structured_properties_urns = [
        u for u in StructuredProperties.list_urns(graph_client)
    ]
    assert property1.urn in structured_properties_urns
    assert property2.urn in structured_properties_urns

    # list structured properties (full)
    structured_properties = StructuredProperties.list(graph_client)
    matched_properties = [
        p for p in structured_properties if p.urn in [property1.urn, property2.urn]
    ]
    assert len(matched_properties) == 2
    retrieved_property1 = next(p for p in matched_properties if p.urn == property1.urn)
    retrieved_property2 = next(p for p in matched_properties if p.urn == property2.urn)

    assert property1.dict() == retrieved_property1.dict()
    assert property2.dict() == retrieved_property2.dict()