import pytest

from helpers.cluster import ClickHouseCluster

cluster = ClickHouseCluster(__file__)

node1 = cluster.add_instance(
    "node1",
    main_configs=["configs/clusters.xml"],
    with_zookeeper=True,
    allow_analyzer=False,
)
node2 = cluster.add_instance(
    "node2",
    main_configs=["configs/clusters.xml"],
    with_zookeeper=True,
    allow_analyzer=False,
)
node3 = cluster.add_instance(
    "node3",
    main_configs=["configs/clusters.xml"],
    with_zookeeper=True,
    allow_analyzer=False,
)
node4 = cluster.add_instance(
    "node4",
    main_configs=["configs/clusters.xml"],
    image="yandex/clickhouse-server",
    tag="21.5",
    with_zookeeper=True,
    allow_analyzer=False,
)


def insert_data(node, table_name):
    node.query(
        """INSERT INTO {}
                VALUES (bitmapBuild(cast([1,2,3,4,5,6,7,8,9,10] as Array(UInt32))));""".format(
            table_name
        )
    )


@pytest.fixture(scope="module")
def start_cluster():
    try:
        cluster.start()
        yield cluster
    finally:
        cluster.shutdown()


def test_groupBitmapAnd_on_distributed_table(start_cluster):
    local_table_name = "bitmap_column_expr_test"
    distributed_table_name = "bitmap_column_expr_test_dst"
    cluster_name = "awesome_cluster"

    for node in (node1, node2):
        node.query(
            """CREATE TABLE {}
        (
            z AggregateFunction(groupBitmap, UInt32)
        )
        ENGINE = MergeTree()
        ORDER BY tuple()""".format(
                local_table_name
            )
        )

        node.query(
            """CREATE TABLE {}
        (
            z AggregateFunction(groupBitmap, UInt32)
        )
        ENGINE = Distributed('{}', 'default', '{}')""".format(
                distributed_table_name, cluster_name, local_table_name
            )
        )
    insert_data(node1, local_table_name)

    expected = "10"

    for node in (node1, node2):
        result = node.query(
            "select groupBitmapAnd(z) FROM {};".format(distributed_table_name)
        ).strip()
        assert result == expected


def test_groupBitmapAnd_function_versioning(start_cluster):
    local_table_name = "bitmap_column_expr_versioning_test"
    distributed_table_name = "bitmap_column_expr_versioning_test_dst"
    cluster_name = "test_version_cluster"

    for node in (node3, node4):
        node.query(
            """CREATE TABLE {}
        (
            z AggregateFunction(groupBitmap, UInt32)
        )
        ENGINE = MergeTree()
        ORDER BY tuple()""".format(
                local_table_name
            )
        )

        node.query(
            """CREATE TABLE {}
        (
            z AggregateFunction(groupBitmap, UInt32)
        )
        ENGINE = Distributed('{}', 'default', '{}')""".format(
                distributed_table_name, cluster_name, local_table_name
            )
        )

        node.query(
            """INSERT INTO {} VALUES
                (bitmapBuild(cast([1,2,3,4,5,6,7,8,9,10] as Array(UInt32))));""".format(
                local_table_name
            )
        )

    expected = "10"
    new_version_distributed_result = node3.query(
        "select groupBitmapAnd(z) FROM {};".format(distributed_table_name)
    ).strip()
    old_version_distributed_result = node4.query(
        "select groupBitmapAnd(z) FROM {};".format(distributed_table_name)
    ).strip()
    assert new_version_distributed_result == expected
    assert old_version_distributed_result == expected

    result_from_old_to_new_version = node3.query(
        "select groupBitmapAnd(z) FROM remote('node4', default.{})".format(
            local_table_name
        )
    ).strip()
    assert result_from_old_to_new_version == expected

    result_from_new_to_old_version = node4.query(
        "select groupBitmapAnd(z) FROM remote('node3', default.{})".format(
            local_table_name
        )
    ).strip()
    assert result_from_new_to_old_version == expected