import os
import os.path as p
import time
import pwd
import re
import pymysql.cursors
import pytest
from helpers.cluster import (
    ClickHouseCluster,
    ClickHouseInstance,
    get_docker_compose_path,
    run_and_check,
)
import docker
import logging

from . import materialize_with_ddl

DOCKER_COMPOSE_PATH = get_docker_compose_path()

cluster = ClickHouseCluster(__file__)
mysql_node = None
mysql8_node = None

node_db = cluster.add_instance(
    "node1",
    main_configs=["configs/timezone_config.xml"],
    user_configs=["configs/users.xml"],
    with_mysql=True,
    with_mysql8=True,
    stay_alive=True,
)
node_disable_bytes_settings = cluster.add_instance(
    "node2",
    main_configs=["configs/timezone_config.xml"],
    user_configs=["configs/users_disable_bytes_settings.xml"],
    with_mysql=False,
    stay_alive=True,
)
node_disable_rows_settings = cluster.add_instance(
    "node3",
    main_configs=["configs/timezone_config.xml"],
    user_configs=["configs/users_disable_rows_settings.xml"],
    with_mysql=False,
    stay_alive=True,
)


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


class MySQLConnection:
    def __init__(
        self,
        port,
        user="root",
        password="clickhouse",
        ip_address=None,
        docker_compose=None,
        project_name=cluster.project_name,
    ):
        self.user = user
        self.port = port
        self.ip_address = ip_address
        self.password = password
        self.mysql_connection = None  # lazy init

    def alloc_connection(self):
        errors = []
        for _ in range(5):
            try:
                if self.mysql_connection is None:
                    self.mysql_connection = pymysql.connect(
                        user=self.user,
                        password=self.password,
                        host=self.ip_address,
                        port=self.port,
                        autocommit=True,
                    )
                else:
                    self.mysql_connection.ping(reconnect=True)
                logging.debug(
                    "MySQL Connection establised: {}:{}".format(
                        self.ip_address, self.port
                    )
                )
                return self.mysql_connection
            except Exception as e:
                errors += [str(e)]
                time.sleep(1)
        raise Exception("Connection not establised, {}".format(errors))

    def query(self, execution_query):
        with self.alloc_connection().cursor() as cursor:
            cursor.execute(execution_query)

    def create_min_priv_user(self, user, password):
        self.query("CREATE USER '" + user + "'@'%' IDENTIFIED BY '" + password + "'")
        self.grant_min_priv_for_user(user)

    def grant_min_priv_for_user(self, user, db="priv_err_db"):
        self.query(
            "GRANT REPLICATION SLAVE, REPLICATION CLIENT, RELOAD ON *.* TO '"
            + user
            + "'@'%'"
        )
        self.query("GRANT SELECT ON " + db + ".* TO '" + user + "'@'%'")

    def result(self, execution_query):
        with self.alloc_connection().cursor() as cursor:
            result = cursor.execute(execution_query)
            if result is not None:
                print(cursor.fetchall())

    def query_and_get_data(self, executio_query):
        with self.alloc_connection().cursor() as cursor:
            cursor.execute(executio_query)
            return cursor.fetchall()

    def close(self):
        if self.mysql_connection is not None:
            self.mysql_connection.close()


@pytest.fixture(scope="module")
def started_mysql_5_7():
    mysql_node = MySQLConnection(
        cluster.mysql_port, "root", "clickhouse", cluster.mysql_ip
    )
    yield mysql_node


@pytest.fixture(scope="module")
def started_mysql_8_0():
    mysql8_node = MySQLConnection(
        cluster.mysql8_port, "root", "clickhouse", cluster.mysql8_ip
    )
    yield mysql8_node


@pytest.fixture(scope="module")
def clickhouse_node():
    yield node_db


def test_materialized_database_dml_with_mysql_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node: ClickHouseInstance
):
    materialize_with_ddl.dml_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.materialized_mysql_database_with_views(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.materialized_mysql_database_with_datetime_and_decimal(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.move_to_prewhere_and_column_filtering(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_materialized_database_dml_with_mysql_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.dml_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialized_mysql_database_with_views(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialized_mysql_database_with_datetime_and_decimal(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.move_to_prewhere_and_column_filtering(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_materialized_database_ddl_with_mysql_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.drop_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.create_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.rename_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.alter_add_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.alter_drop_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    # mysql 5.7 cannot support alter rename column
    # materialize_with_ddl.alter_rename_column_with_materialized_mysql_database(clickhouse_node, started_mysql_5_7, "mysql57")
    materialize_with_ddl.alter_rename_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.alter_modify_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.create_table_like_with_materialize_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_materialized_database_ddl_with_mysql_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.drop_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.create_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.rename_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.alter_add_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.alter_drop_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.alter_rename_table_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.alter_rename_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.alter_modify_column_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.create_table_like_with_materialize_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_materialized_database_ddl_with_empty_transaction_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.query_event_with_empty_transaction(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_materialized_database_ddl_with_empty_transaction_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.query_event_with_empty_transaction(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_select_without_columns_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.select_without_columns(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_select_without_columns_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.select_without_columns(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_insert_with_modify_binlog_checksum_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.insert_with_modify_binlog_checksum(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_insert_with_modify_binlog_checksum_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.insert_with_modify_binlog_checksum(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_materialized_database_err_sync_user_privs_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.err_sync_user_privs_with_materialized_mysql_database(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_materialized_database_err_sync_user_privs_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.err_sync_user_privs_with_materialized_mysql_database(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_network_partition_5_7(started_cluster, started_mysql_5_7, clickhouse_node):
    materialize_with_ddl.network_partition_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_network_partition_8_0(started_cluster, started_mysql_8_0, clickhouse_node):
    materialize_with_ddl.network_partition_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_mysql_kill_sync_thread_restore_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.mysql_kill_sync_thread_restore_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_mysql_kill_sync_thread_restore_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.mysql_kill_sync_thread_restore_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_mysql_killed_while_insert_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.mysql_killed_while_insert(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_mysql_killed_while_insert_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.mysql_killed_while_insert(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_clickhouse_killed_while_insert_5_7(
    started_cluster, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.clickhouse_killed_while_insert(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_clickhouse_killed_while_insert_8_0(
    started_cluster, started_mysql_8_0, clickhouse_node
):
    materialize_with_ddl.clickhouse_killed_while_insert(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_utf8mb4(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.utf8mb4_test(clickhouse_node, started_mysql_5_7, "mysql57")
    materialize_with_ddl.utf8mb4_test(clickhouse_node, started_mysql_8_0, "mysql80")


def test_system_parts_table(started_cluster, started_mysql_8_0, clickhouse_node):
    materialize_with_ddl.system_parts_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_multi_table_update(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.multi_table_update_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.multi_table_update_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_system_tables_table(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.system_tables_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.system_tables_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_materialized_with_column_comments(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.materialize_with_column_comments_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.materialize_with_column_comments_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_materialized_with_enum(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.materialize_with_enum8_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.materialize_with_enum16_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.alter_enum8_to_enum16_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.materialize_with_enum8_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialize_with_enum16_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.alter_enum8_to_enum16_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


@pytest.mark.parametrize(
    ("clickhouse_node"), [node_disable_bytes_settings, node_disable_rows_settings]
)
def test_mysql_settings(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.mysql_settings_test(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )
    materialize_with_ddl.mysql_settings_test(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )


def test_large_transaction(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.materialized_mysql_large_transaction(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialized_mysql_large_transaction(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_table_table(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.table_table(clickhouse_node, started_mysql_8_0, "mysql80")
    materialize_with_ddl.table_table(clickhouse_node, started_mysql_5_7, "mysql57")


def test_table_overrides(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.table_overrides(clickhouse_node, started_mysql_5_7, "mysql57")
    materialize_with_ddl.table_overrides(clickhouse_node, started_mysql_8_0, "mysql80")


def test_materialized_database_support_all_kinds_of_mysql_datatype(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.materialized_database_support_all_kinds_of_mysql_datatype(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialized_database_support_all_kinds_of_mysql_datatype(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_materialized_database_settings_materialized_mysql_tables_list(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.materialized_database_settings_materialized_mysql_tables_list(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialized_database_settings_materialized_mysql_tables_list(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )


def test_materialized_database_mysql_date_type_to_date32(
    started_cluster, started_mysql_8_0, started_mysql_5_7, clickhouse_node
):
    materialize_with_ddl.materialized_database_mysql_date_type_to_date32(
        clickhouse_node, started_mysql_8_0, "mysql80"
    )
    materialize_with_ddl.materialized_database_mysql_date_type_to_date32(
        clickhouse_node, started_mysql_5_7, "mysql57"
    )