#!/usr/bin/env python
#-*- coding: utf-8 -*-
import subprocess
import os
import getpass
import argparse
import logging
import signal
import subprocess
import sys

CUR_FILE_DIR = os.path.dirname(os.path.realpath(__file__))
DEFAULT_CLICKHOUSE_ROOT = os.path.abspath(os.path.join(CUR_FILE_DIR, "../../"))
CURRENT_WORK_DIR = os.getcwd()
CONTAINER_NAME = "clickhouse_integration_tests"

CONFIG_DIR_IN_REPO = "programs/server"
INTERGATION_DIR_IN_REPO = "tests/integration"

DIND_INTEGRATION_TESTS_IMAGE_NAME = "yandex/clickhouse-integration-tests-runner"

def check_args_and_update_paths(args):
    if args.clickhouse_root:
        if not os.path.isabs(args.clickhouse_root):
            CLICKHOUSE_ROOT = os.path.abspath(args.clickhouse_root)
        else:
            CLICKHOUSE_ROOT = args.clickhouse_root
    else:
        logging.info("ClickHouse root is not set. Will use {}".format(DEFAULT_CLICKHOUSE_ROOT))
        CLICKHOUSE_ROOT = DEFAULT_CLICKHOUSE_ROOT

    if not os.path.isabs(args.binary):
        args.binary = os.path.abspath(os.path.join(CURRENT_WORK_DIR, args.binary))

    if not args.bridge_binary:
        args.bridge_binary = os.path.join(os.path.dirname(args.binary), 'clickhouse-odbc-bridge')
    elif not os.path.isabs(args.bridge_binary):
        args.bridge_binary = os.path.abspath(os.path.join(CURRENT_WORK_DIR, args.bridge_binary))

    if args.base_configs_dir:
        if not os.path.isabs(args.base_configs_dir):
            args.base_configs_dir = os.path.abspath(os.path.join(CURRENT_WORK_DIR, args.base_configs_dir))
    else:
        args.base_configs_dir = os.path.abspath(os.path.join(CLICKHOUSE_ROOT, CONFIG_DIR_IN_REPO))
        logging.info("Base configs dir is not set. Will use {}".format(args.base_configs_dir))

    if args.cases_dir:
        if not os.path.isabs(args.cases_dir):
            args.cases_dir = os.path.abspath(os.path.join(CURRENT_WORK_DIR, args.cases_dir))
    else:
        args.cases_dir = os.path.abspath(os.path.join(CLICKHOUSE_ROOT, INTERGATION_DIR_IN_REPO))
        logging.info("Cases dir is not set. Will use {}".format(args.cases_dir))

    logging.info("base_configs_dir: {},  binary: {}, cases_dir: {} ".format(args.base_configs_dir, args.binary, args.cases_dir))

    for path in [args.binary, args.base_configs_dir, args.cases_dir, CLICKHOUSE_ROOT]:
        if not os.path.exists(path):
            raise Exception("Path {} doesn't exist".format(path))

    if not os.path.exists(os.path.join(args.base_configs_dir, "config.xml")):
        raise Exception("No configs.xml in {}".format(args.base_configs_dir))

    if not os.path.exists(os.path.join(args.base_configs_dir, "users.xml")):
        raise Exception("No users.xml in {}".format(args.base_configs_dir))

def docker_kill_handler_handler(signum, frame):
    subprocess.check_call('docker kill $(docker ps -a -q --filter name={name} --format="{{{{.ID}}}}")'.format(name=CONTAINER_NAME), shell=True)
    raise KeyboardInterrupt("Killed by Ctrl+C")

signal.signal(signal.SIGINT, docker_kill_handler_handler)

# Integration tests runner should allow to run tests on several versions of ClickHouse.
# Integration tests should be portable.
# To run integration tests following artfacts should be sufficient:
#   - clickhouse binaries (env CLICKHOUSE_TESTS_SERVER_BIN_PATH or --binary arg)
#   - clickhouse default configs(config.xml, users.xml) from same version as binary (env CLICKHOUSE_TESTS_BASE_CONFIG_DIR or --base-configs-dir arg)
#   - odbc bridge binary (env CLICKHOUSE_TESTS_ODBC_BRIDGE_BIN_PATH or --bridge-binary arg)
#   - tests/integration directory with all test cases and configs (env CLICKHOUSE_TESTS_INTEGRATION_PATH or --cases-dir)
#
# 1) --clickhouse-root is only used to determine other paths on default places
# 2) path of runner script is used to determine paths for trivial case, when we run it from repository

if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO, format='%(asctime)s %(message)s')
    parser = argparse.ArgumentParser(description="ClickHouse integration tests runner")

    parser.add_argument(
        "--binary",
        default=os.environ.get("CLICKHOUSE_TESTS_SERVER_BIN_PATH", os.environ.get("CLICKHOUSE_TESTS_CLIENT_BIN_PATH", "/usr/bin/clickhouse")),
        help="Path to clickhouse binary. For example /usr/bin/clickhouse")

    parser.add_argument(
        "--bridge-binary",
        default=os.environ.get("CLICKHOUSE_TESTS_ODBC_BRIDGE_BIN_PATH", ""),
        help="Path to clickhouse-odbc-bridge binary. Defaults to clickhouse-odbc-bridge in the same dir as clickhouse.")

    parser.add_argument(
        "--base-configs-dir",
        default=os.environ.get("CLICKHOUSE_TESTS_BASE_CONFIG_DIR"),
        help="Path to clickhouse base configs directory with config.xml/users.xml")

    parser.add_argument(
        "--cases-dir",
        default=os.environ.get("CLICKHOUSE_TESTS_INTEGRATION_PATH"),
        help="Path to integration tests cases and configs directory. For example tests/integration in repository")

    parser.add_argument(
        "--clickhouse-root",
        help="Path to repository root folder. Used to take configuration from repository default paths.")

    parser.add_argument(
        "--command",
        default='',
        help="Set it to run some other command in container (for example bash)")

    parser.add_argument(
        "--disable-net-host",
        action='store_true',
        default=False,
        help="Don't use net host in parent docker container")

    parser.add_argument(
        "--docker-image-version",
        default="latest",
        help="Version of docker image which runner will use to run tests")

    parser.add_argument(
        "--docker-compose-images-tags",
        action="append",
        help="Set non-default tags for images used in docker compose recipes(yandex/my_container:my_tag)")

    parser.add_argument('pytest_args', nargs='*', help="args for pytest command")

    args = parser.parse_args()

    check_args_and_update_paths(args)

    net = ""
    if not args.disable_net_host:
        net = "--net=host"

    # create named volume which will be used inside to store images and other docker related files,
    # to avoid redownloading it every time
    #
    # should be removed manually when not needed
    subprocess.check_call('docker volume create {name}_volume'.format(name=CONTAINER_NAME), shell=True)

    # enable tty mode & interactive for docker if we have real tty
    tty = ""
    if sys.stdout.isatty() and sys.stdin.isatty():
        tty = "-it"

    cmd = "docker run {net} {tty} --rm --name {name} --privileged --volume={bridge_bin}:/clickhouse-odbc-bridge --volume={bin}:/clickhouse \
        --volume={base_cfg}:/clickhouse-config --volume={cases_dir}:/ClickHouse/tests/integration \
        --volume={name}_volume:/var/lib/docker -e PYTEST_OPTS='{opts}' {img} {command}".format(
        net=net,
        tty=tty,
        bin=args.binary,
        bridge_bin=args.bridge_binary,
        base_cfg=args.base_configs_dir,
        cases_dir=args.cases_dir,
        opts=' '.join(args.pytest_args),
        img=DIND_INTEGRATION_TESTS_IMAGE_NAME + ":" + args.docker_image_version,
        name=CONTAINER_NAME,
        command=args.command
    )

    print("Running pytest container as: '" + cmd + "'.")
    subprocess.check_call(cmd, shell=True)