integration_tests.py

#!/usr/bin/env python
import fnmatch
import json
import os
import re
import requests
import shlex
import shutil
import subprocess
import sys
import tempfile
import time
from concurrent.futures import ThreadPoolExecutor, as_completed
from contextlib import contextmanager
from pathlib import Path
from typing import Optional

import git
import typer
import yaml
from packaging.version import Version
from typer import colors as c

# Editable configuration
DEFAULT_HOST_OS = "cc7"
DEFAULT_MYSQL_VER = "mysql:8.0"
DEFAULT_ES_VER = "elasticsearch:7.9.1"
DEFAULT_IAM_VER = "indigoiam/iam-login-service:v1.8.0"
FEATURE_VARIABLES = {
    "DIRACOSVER": "master",
    "DIRACOS_TARBALL_PATH": None,
    "TEST_HTTPS": "No",
    "DIRAC_FEWER_CFG_LOCKS": None,
    "DIRAC_USE_JSON_ENCODE": None,
    "INSTALLATION_BRANCH": "",
}
DEFAULT_MODULES = {
    "DIRAC": Path(__file__).parent.absolute(),
}

# Static configuration
DB_USER = "Dirac"
DB_PASSWORD = "Dirac"
DB_ROOTUSER = "root"
DB_ROOTPWD = "password"
DB_HOST = "mysql"
DB_PORT = "3306"

IAM_INIT_CLIENT_ID = "password-grant"
IAM_INIT_CLIENT_SECRET = "secret"
IAM_SIMPLE_CLIENT_NAME = "simple-client"
IAM_SIMPLE_USER = "jane_doe"
IAM_SIMPLE_PASSWORD = "password"
IAM_ADMIN_CLIENT_NAME = "admin-client"
IAM_ADMIN_USER = "admin"
IAM_ADMIN_PASSWORD = "password"
IAM_HOST = "iam-login-service"
IAM_PORT = "8080"

# Implementation details
LOG_LEVEL_MAP = {
    "ALWAYS": (c.BLACK, c.WHITE),
    "NOTICE": (None, c.MAGENTA),
    "INFO": (None, c.GREEN),
    "VERBOSE": (None, c.CYAN),
    "DEBUG": (None, c.BLUE),
    "WARN": (None, c.YELLOW),
    "ERROR": (None, c.RED),
    "FATAL": (c.RED, c.BLACK),
}
LOG_PATTERN = re.compile(r"^[\d\-]{10} [\d:]{8} UTC [^\s]+ ([A-Z]+):")


class NaturalOrderGroup(typer.core.TyperGroup):
    """Group for showing subcommands in the correct order"""

    def list_commands(self, ctx):
        return self.commands.keys()


app = typer.Typer(
    cls=NaturalOrderGroup,
    help=f"""Run the DIRAC integration tests.

A local DIRAC setup can be created and tested by running:

\b
  ./integration_tests.py create

This is equivalent to running:

\b
  ./integration_tests.py prepare-environment
  ./integration_tests.py install-server
  ./integration_tests.py install-client
  ./integration_tests.py test-server
  ./integration_tests.py test-client

The test setup can be shutdown using:

\b
  ./integration_tests.py destroy

See below for additional subcommands which are useful during local development.

## Features

The currently known features and their default values are:

\b
  HOST_OS: {DEFAULT_HOST_OS!r}
  MYSQL_VER: {DEFAULT_MYSQL_VER!r}
  ES_VER: {DEFAULT_ES_VER!r}
  IAM_VER: {DEFAULT_IAM_VER!r}
  {(os.linesep + '  ').join(['%s: %r' % x for x in FEATURE_VARIABLES.items()])}

All features can be prefixed with "SERVER_" or "CLIENT_" to limit their scope.

## Extensions

Integration tests can be ran for extensions to DIRAC by specifying the module
name and path such as:

\b
  ./integration_tests.py create --extra-module MyDIRAC=/path/to/MyDIRAC

This will modify the setup process based on the contents of
`MyDIRAC/tests/.dirac-ci-config.yaml`. See the Vanilla DIRAC file for the
available options.

## Command completion

Command completion of typer based scripts can be enabled by running:

  typer --install-completion

After restarting your terminal you command completion is available using:

  typer ./integration_tests.py run ...
""",
)


@app.command()
def create(
    flags: Optional[list[str]] = typer.Argument(None),
    editable: Optional[bool] = None,
    extra_module: Optional[list[str]] = None,
    release_var: Optional[str] = None,
    run_server_tests: bool = True,
    run_client_tests: bool = True,
):
    """Start a local instance of the integration tests"""
    prepare_environment(flags, editable, extra_module, release_var)
    install_server()
    install_client()
    exit_code = 0
    if run_server_tests:
        try:
            test_server()
        except TestExit as e:
            exit_code += e.exit_code
        else:
            raise NotImplementedError()
    if run_client_tests:
        try:
            test_client()
        except TestExit as e:
            exit_code += e.exit_code
        else:
            raise NotImplementedError()
    if exit_code != 0:
        typer.secho("One or more tests failed", err=True, fg=c.RED)
    raise typer.Exit(exit_code)


@app.command()
def destroy():
    """Destroy a local instance of the integration tests"""
    typer.secho("Shutting down and removing containers", err=True, fg=c.GREEN)
    with _gen_docker_compose(DEFAULT_MODULES) as docker_compose_fn:
        os.execvpe(
            "docker-compose",
            ["docker-compose", "-f", docker_compose_fn, "down", "--remove-orphans", "-t", "0"],
            _make_env({}),
        )


@app.command()
def prepare_environment(
    flags: Optional[list[str]] = typer.Argument(None),
    editable: Optional[bool] = None,
    extra_module: Optional[list[str]] = None,
    release_var: Optional[str] = None,
):
    """Prepare the local environment for installing DIRAC."""

    _check_containers_running(is_up=False)
    if editable is None:
        editable = sys.stdout.isatty()
        typer.secho(
            f"No value passed for --[no-]editable, automatically detected: {editable}",
            fg=c.YELLOW,
        )
    typer.echo(f"Preparing environment")

    modules = DEFAULT_MODULES | dict(f.split("=", 1) for f in extra_module)
    modules = {k: Path(v).absolute() for k, v in modules.items()}

    flags = dict(f.split("=", 1) for f in flags)
    docker_compose_env = _make_env(flags)
    server_flags = {}
    client_flags = {}
    for key, value in flags.items():
        if key.startswith("SERVER_"):
            server_flags[key[len("SERVER_") :]] = value
        elif key.startswith("CLIENT_"):
            client_flags[key[len("CLIENT_") :]] = value
        else:
            server_flags[key] = value
            client_flags[key] = value
    server_config = _make_config(modules, server_flags, release_var, editable)
    client_config = _make_config(modules, client_flags, release_var, editable)

    typer.secho("Running docker-compose to create containers", fg=c.GREEN)
    with _gen_docker_compose(modules) as docker_compose_fn:
        subprocess.run(
            ["docker-compose", "-f", docker_compose_fn, "up", "-d"],
            check=True,
            env=docker_compose_env,
        )

    typer.secho("Creating users in server and client containers", fg=c.GREEN)
    for container_name in ["server", "client"]:
        if os.getuid() == 0:
            continue
        cmd = _build_docker_cmd(container_name, use_root=True, cwd="/")
        gid = str(os.getgid())
        uid = str(os.getuid())
        ret = subprocess.run(cmd + ["groupadd", "--gid", gid, "dirac"], check=False)
        if ret.returncode != 0:
            typer.secho(f"Failed to add add group dirac with id={gid}", fg=c.YELLOW)
        subprocess.run(
            cmd
            + [
                "useradd",
                "--uid",
                uid,
                "--gid",
                gid,
                "-s",
                "/bin/bash",
                "-d",
                "/home/dirac",
                "dirac",
            ],
            check=True,
        )
        subprocess.run(cmd + ["chown", "dirac", "/home/dirac"], check=True)

    typer.secho("Creating MySQL user", fg=c.GREEN)
    cmd = ["docker", "exec", "mysql", "mysql", f"--password={DB_ROOTPWD}", "-e"]
    # It sometimes takes a while for MySQL to be ready so wait for a while if needed
    for _ in range(10):
        ret = subprocess.run(
            cmd + [f"CREATE USER '{DB_USER}'@'%' IDENTIFIED BY '{DB_PASSWORD}';"],
            check=False,
        )
        if ret.returncode == 0:
            break
        typer.secho("Failed to connect to MySQL, will retry in 10 seconds", fg=c.YELLOW)
        time.sleep(10)
    else:
        raise Exception(ret)
    subprocess.run(
        cmd + [f"CREATE USER '{DB_USER}'@'localhost' IDENTIFIED BY '{DB_PASSWORD}';"],
        check=True,
    )
    subprocess.run(
        cmd + [f"CREATE USER '{DB_USER}'@'mysql' IDENTIFIED BY '{DB_PASSWORD}';"],
        check=True,
    )

    _prepare_iam_instance()

    typer.secho("Copying files to containers", fg=c.GREEN)
    for name, config in [("server", server_config), ("client", client_config)]:
        if path := config.get("DIRACOS_TARBALL_PATH"):
            path = Path(path)
            config["DIRACOS_TARBALL_PATH"] = f"/{path.name}"
            subprocess.run(
                ["docker", "cp", str(path), f"{name}:/{config['DIRACOS_TARBALL_PATH']}"],
                check=True,
            )

        config_as_shell = _dict_to_shell(config)
        typer.secho(f"## {name.title()} config is:", fg=c.BRIGHT_WHITE, bg=c.BLACK)
        typer.secho(config_as_shell)

        with tempfile.TemporaryDirectory() as tmpdir:
            path = Path(tmpdir) / "CONFIG"
            path.write_text(config_as_shell)
            subprocess.run(
                ["docker", "cp", str(path), f"{name}:/home/dirac"],
                check=True,
            )

    for module_name, module_configs in _load_module_configs(modules).items():
        for command in module_configs.get("commands", {}).get("post-prepare", []):
            typer.secho(
                f"Running post-prepare command for {module_name}: {command}",
                err=True,
                fg=c.GREEN,
            )
            subprocess.run(command, check=True, shell=True)


@app.command()
def install_server():
    """Install DIRAC in the server container."""
    _check_containers_running()

    typer.secho("Running server installation", fg=c.GREEN)
    base_cmd = _build_docker_cmd("server", tty=False)
    subprocess.run(
        base_cmd + ["bash", "/home/dirac/LocalRepo/TestCode/DIRAC/tests/CI/install_server.sh"],
        check=True,
    )

    typer.secho("Copying credentials and certificates", fg=c.GREEN)
    base_cmd = _build_docker_cmd("client", tty=False)
    subprocess.run(
        base_cmd
        + [
            "mkdir",
            "-p",
            "/home/dirac/ServerInstallDIR/user",
            "/home/dirac/ClientInstallDIR/etc",
            "/home/dirac/.globus",
        ],
        check=True,
    )
    for path in [
        "etc/grid-security",
        "user/client.pem",
        "user/client.key",
        f"/tmp/x509up_u{os.getuid()}",
    ]:
        source = os.path.join("/home/dirac/ServerInstallDIR", path)
        ret = subprocess.run(
            ["docker", "cp", f"server:{source}", "-"],
            check=True,
            text=False,
            stdout=subprocess.PIPE,
        )
        if path.startswith("user/"):
            dest = f"client:/home/dirac/ServerInstallDIR/{os.path.dirname(path)}"
        elif path.startswith("/"):
            dest = f"client:{os.path.dirname(path)}"
        else:
            dest = f"client:/home/dirac/ClientInstallDIR/{os.path.dirname(path)}"
        subprocess.run(["docker", "cp", "-", dest], check=True, text=False, input=ret.stdout)
    subprocess.run(
        base_cmd
        + [
            "bash",
            "-c",
            "cp /home/dirac/ServerInstallDIR/user/client.* /home/dirac/.globus/",
        ],
        check=True,
    )


@app.command()
def install_client():
    """Install DIRAC in the client container."""
    _check_containers_running()
    typer.secho("Running client installation", fg=c.GREEN)
    base_cmd = _build_docker_cmd("client")
    subprocess.run(
        base_cmd + ["bash", "/home/dirac/LocalRepo/TestCode/DIRAC/tests/CI/install_client.sh"],
        check=True,
    )


@app.command()
def test_server():
    """Run the server integration tests."""
    _check_containers_running()
    typer.secho("Running server tests", err=True, fg=c.GREEN)
    base_cmd = _build_docker_cmd("server")
    ret = subprocess.run(base_cmd + ["bash", "TestCode/DIRAC/tests/CI/run_tests.sh"], check=False)
    color = c.GREEN if ret.returncode == 0 else c.RED
    typer.secho(f"Server tests finished with {ret.returncode}", err=True, fg=color)
    raise TestExit(ret.returncode)


@app.command()
def test_client():
    """Run the client integration tests."""
    _check_containers_running()
    typer.secho("Running client tests", err=True, fg=c.GREEN)
    base_cmd = _build_docker_cmd("client")
    ret = subprocess.run(base_cmd + ["bash", "TestCode/DIRAC/tests/CI/run_tests.sh"], check=False)
    color = c.GREEN if ret.returncode == 0 else c.RED
    typer.secho(f"Client tests finished with {ret.returncode}", err=True, fg=color)
    raise TestExit(ret.returncode)


@app.command()
def exec_server():
    """Start an interactive session in the server container."""
    _check_containers_running()
    cmd = _build_docker_cmd("server")
    cmd += [
        "bash",
        "-c",
        ". $HOME/CONFIG && . $HOME/ServerInstallDIR/bashrc && exec bash",
    ]
    typer.secho("Opening prompt inside server container", err=True, fg=c.GREEN)
    os.execvp(cmd[0], cmd)


@app.command()
def exec_client():
    """Start an interactive session in the client container."""
    _check_containers_running()
    cmd = _build_docker_cmd("client")
    cmd += [
        "bash",
        "-c",
        ". $HOME/CONFIG && . $HOME/ClientInstallDIR/bashrc && exec bash",
    ]
    typer.secho("Opening prompt inside client container", err=True, fg=c.GREEN)
    os.execvp(cmd[0], cmd)


@app.command()
def exec_mysql():
    """Start an interactive session in the server container."""
    _check_containers_running()
    cmd = _build_docker_cmd("mysql", use_root=True, cwd="/")
    cmd += [
        "bash",
        "-c",
        f"exec mysql --user={DB_USER} --password={DB_PASSWORD}",
    ]
    typer.secho("Opening prompt inside server container", err=True, fg=c.GREEN)
    os.execvp(cmd[0], cmd)


@app.command()
def list_services():
    """List the services which have been running.

    Only the services for which /log/current exists are shown.
    """
    _check_containers_running()
    typer.secho("Known services:", err=True)
    for service in _list_services()[1]:
        typer.secho(f"* {service}", err=True)


@app.command()
def runsvctrl(command: str, pattern: str):
    """Execute runsvctrl inside the server container."""
    _check_containers_running()
    runit_dir, services = _list_services()
    cmd = _build_docker_cmd("server", cwd=runit_dir)
    services = fnmatch.filter(services, pattern)
    if not services:
        typer.secho(f"No services match {pattern!r}", fg=c.RED)
        raise typer.Exit(code=1)
    cmd += ["runsvctrl", command] + services
    os.execvp(cmd[0], cmd)


@app.command()
def logs(pattern: str = "*", lines: int = 10, follow: bool = True):
    """Show DIRAC's logs from the service container.

    For services matching [--pattern] show the most recent [--lines] from the
    logs. If [--follow] is True, continiously stream the logs.
    """
    _check_containers_running()
    runit_dir, services = _list_services()
    base_cmd = _build_docker_cmd("server", tty=False) + ["tail"]
    base_cmd += [f"--lines={lines}"]
    if follow:
        base_cmd += ["-f"]
    with ThreadPoolExecutor(len(services)) as pool:
        futures = []
        for service in fnmatch.filter(services, pattern):
            cmd = base_cmd + [f"{runit_dir}/{service}/log/current"]
            p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=None, text=True)
            futures.append(pool.submit(_log_popen_stdout, p))
        for res in as_completed(futures):
            err = res.exception()
            if err:
                raise err


class TestExit(typer.Exit):
    pass


@contextmanager
def _gen_docker_compose(modules):
    # Load the docker-compose configuration and mount the necessary volumes
    input_fn = Path(__file__).parent / "tests/CI/docker-compose.yml"
    docker_compose = yaml.safe_load(input_fn.read_text())
    volumes = [f"{path}:/home/dirac/LocalRepo/ALTERNATIVE_MODULES/{name}" for name, path in modules.items()]
    volumes += [f"{path}:/home/dirac/LocalRepo/TestCode/{name}" for name, path in modules.items()]
    docker_compose["services"]["dirac-server"]["volumes"] = volumes[:]
    docker_compose["services"]["dirac-client"]["volumes"] = volumes[:]

    # Add any extension services
    for module_name, module_configs in _load_module_configs(modules).items():
        for service_name, service_config in module_configs["extra-services"].items():
            typer.secho(f"Adding service {service_name} for {module_name}", err=True, fg=c.GREEN)
            docker_compose["services"][service_name] = service_config.copy()
            docker_compose["services"][service_name]["volumes"] = volumes[:]

    # Write to a tempory file with the appropriate profile name
    prefix = "ci"
    with tempfile.TemporaryDirectory() as tmpdir:
        input_docker_compose_dir = Path(__file__).parent / "tests/CI/"
        output_fn = Path(tmpdir) / prefix / "docker-compose.yml"
        output_fn.parent.mkdir()
        output_fn.write_text(yaml.safe_dump(docker_compose, sort_keys=False))
        shutil.copytree(input_docker_compose_dir / "envs", str(Path(tmpdir) / prefix), dirs_exist_ok=True)
        yield output_fn


def _check_containers_running(*, is_up=True):
    with _gen_docker_compose(DEFAULT_MODULES) as docker_compose_fn:
        running_containers = subprocess.run(
            ["docker-compose", "-f", docker_compose_fn, "ps", "-q", "-a"],
            stdout=subprocess.PIPE,
            env=_make_env({}),
            check=True,
            text=True,
        ).stdout.split("\n")
    if is_up:
        if not any(running_containers):
            typer.secho(
                f"No running containers found, environment must be prepared first!",
                err=True,
                fg=c.RED,
            )
            raise typer.Exit(code=1)
    else:
        if any(running_containers):
            typer.secho(
                f"Running instance already found, it must be destroyed first!",
                err=True,
                fg=c.RED,
            )
            raise typer.Exit(code=1)


def _find_dirac_release():
    # Start by looking for the GitHub/GitLab environment variables
    if "GITHUB_BASE_REF" in os.environ:  # this will be "rel-v8r0"
        return os.environ["GITHUB_BASE_REF"]
    if "CI_COMMIT_REF_NAME" in os.environ:
        return os.environ["CI_COMMIT_REF_NAME"]
    if "CI_MERGE_REQUEST_TARGET_BRANCH_NAME" in os.environ:
        return os.environ["CI_MERGE_REQUEST_TARGET_BRANCH_NAME"]

    repo = git.Repo(os.getcwd())
    # Try to make sure the upstream remote is up to date
    try:
        upstream = repo.remote("upstream")
    except ValueError:
        typer.secho("No upstream remote found, adding", err=True, fg=c.YELLOW)
        upstream = repo.create_remote("upstream", "https://github.com/DIRACGrid/DIRAC.git")
    try:
        upstream.fetch()
    except Exception:
        typer.secho("Failed to fetch from remote 'upstream'", err=True, fg=c.YELLOW)
    # Find the most recent tag on the current branch
    version = Version(
        repo.git.describe(
            dirty=True,
            tags=True,
            long=True,
            match="*[0-9]*",
            exclude=["v[0-9]r*", "v[0-9][0-9]r*"],
        ).split("-")[0]
    )
    # See if there is a remote branch named "rel-vXrY"
    version_branch = f"rel-v{version.major}r{version.minor}"
    try:
        upstream.refs[version_branch]
    except IndexError:
        typer.secho(
            f"Failed to find branch for {version_branch}, defaulting to integration",
            err=True,
            fg=c.YELLOW,
        )
        return "integration"
    else:
        return version_branch


def _make_env(flags):
    env = os.environ.copy()
    env["DIRAC_UID"] = str(os.getuid())
    env["DIRAC_GID"] = str(os.getgid())
    env["HOST_OS"] = flags.pop("HOST_OS", DEFAULT_HOST_OS)
    env["CI_REGISTRY_IMAGE"] = flags.pop("CI_REGISTRY_IMAGE", "diracgrid")
    env["MYSQL_VER"] = flags.pop("MYSQL_VER", DEFAULT_MYSQL_VER)
    env["ES_VER"] = flags.pop("ES_VER", DEFAULT_ES_VER)
    env["IAM_VER"] = flags.pop("IAM_VER", DEFAULT_IAM_VER)
    return env


def _dict_to_shell(variables):
    lines = []
    for name, value in variables.items():
        if value is None:
            continue
        elif isinstance(value, list):
            lines += [f"declare -a {name}"]
            lines += [f"{name}+=({shlex.quote(v)})" for v in value]
        elif isinstance(value, bool):
            lines += [f"export {name}={'Yes' if value else 'No'}"]
        elif isinstance(value, str):
            lines += [f"export {name}={shlex.quote(value)}"]
        else:
            raise NotImplementedError(name, value, type(value))
    return "\n".join(lines)


def _prepare_iam_instance():
    """Prepare the IAM instance such as we have:

    * 2 clients:
      * exchange-token-test: able to exchange token
      * simple-token-test: for users
    * 2 users:
      * admin and jane doe (a user)
    * 3 groups:
      * dirac/admin
      * dirac/prod
      * dirac/user
    """
    issuer = f"http://localhost:{IAM_PORT}"

    typer.secho("Getting an IAM admin token", fg=c.GREEN)

    # It sometimes takes a while for IAM to be ready so wait for a while if needed
    for _ in range(10):
        try:
            tokens = _get_iam_token(
                issuer, IAM_ADMIN_USER, IAM_ADMIN_PASSWORD, IAM_INIT_CLIENT_ID, IAM_INIT_CLIENT_SECRET
            )
            break
        except requests.ConnectionError:
            time.sleep(10)

    admin_access_token = tokens.get("access_token")

    typer.secho("Creating IAM clients", fg=c.GREEN)
    user_client_config = _create_iam_client(
        issuer,
        admin_access_token,
        IAM_SIMPLE_CLIENT_NAME,
    )
    admin_client_config = _create_iam_client(
        issuer,
        admin_access_token,
        IAM_ADMIN_CLIENT_NAME,
        grant_types=["urn:ietf:params:oauth:grant-type:token-exchange"],
    )

    typer.secho("Creating IAM users", fg=c.GREEN)
    simple_user_config = _create_iam_user(issuer, admin_access_token, IAM_SIMPLE_USER, IAM_SIMPLE_PASSWORD)

    typer.secho("Creating IAM groups", fg=c.GREEN)
    dirac_group_config = _create_iam_group(issuer, admin_access_token, "dirac")
    dirac_group_id = dirac_group_config["id"]
    dirac_admin_group_config = _create_iam_subgroup(issuer, admin_access_token, "dirac", dirac_group_id, "admin")
    dirac_prod_group_config = _create_iam_subgroup(issuer, admin_access_token, "dirac", dirac_group_id, "prod")
    dirac_user_group_config = _create_iam_subgroup(issuer, admin_access_token, "dirac", dirac_group_id, "user")

    typer.secho("Adding IAM users to groups", fg=c.GREEN)
    _create_iam_group_membership(
        issuer,
        admin_access_token,
        simple_user_config["userName"],
        simple_user_config["id"],
        [dirac_group_id, dirac_prod_group_config["id"], dirac_user_group_config["id"]],
    )


def _get_iam_token(issuer, user, password, client_id, client_secret):
    """Get a token using the password flow

    :param str issuer: url of the issuer
    :param str user: username
    :param str password: password
    :param str client_id: client id
    :param str client_secret: client secret
    """
    query = os.path.join(issuer, "token")
    params = {"username": user, "password": password, "grant_type": "password"}
    response = requests.post(
        query,
        auth=(client_id, client_secret),
        params=params,
        timeout=5,
    )
    if not response.ok:
        typer.secho(f"Failed to get an admin token: {response.status_code} {response.reason}", err=True, fg=c.RED)
        raise typer.Exit(code=1)
    return response.json()


def _create_iam_client(issuer, admin_access_token, client_name, scope="", grant_types=None):
    """Generate an IAM client

    :param str issuer: url of the issuer
    :param str admin_access_token: access token to register a client
    :param str client_name: name of the client
    :param str scope: scope of the client
    :param list grant_types: list of grant types
    """
    query = os.path.join(issuer, "iam/api/client-registration")
    headers = {
        "Authorization": f"Bearer {admin_access_token}",
        "Content-Type": "application/json",
    }

    scope = "openid profile offline_access " + scope

    default_grant_types = ["refresh_token", "password"]
    if not grant_types:
        grant_types = []
    grant_types = list(set(default_grant_types + grant_types))

    client_config = {
        "client_name": client_name,
        "token_endpoint_auth_method": "client_secret_basic",
        "scope": scope,
        "grant_types": grant_types,
        "response_types": ["code"],
    }

    response = requests.post(
        query,
        headers=headers,
        data=json.dumps(client_config),
        timeout=5,
    )
    if not response.ok:
        typer.secho(
            f"Failed to create client {client_name}: {response.status_code} {response.reason}", err=True, fg=c.RED
        )
        raise typer.Exit(code=1)

    # FIX TO REMOVE WITH IAM:v1.8.2
    # -----------------------------
    # Because of an issue in IAM, a client dynamically registered using the password flow
    # will provide invalid refresh token: https://github.com/indigo-iam/iam/issues/575
    # To cope with this problem, we have to update the client with the following params
    client_config = response.json()
    client_config["grant_types"].append("client_credentials")
    client_config["refresh_token_validity_seconds"] = 3600
    client_config["access_token_validity_seconds"] = 3600

    query = os.path.join(issuer, "iam/api/clients", client_config["client_id"])
    response = requests.put(
        query,
        headers=headers,
        data=json.dumps(client_config),
        timeout=5,
    )
    if not response.ok:
        typer.secho(
            f"Failed to update client {client_name}: {response.status_code} {response.reason}", err=True, fg=c.RED
        )
        raise typer.Exit(code=1)
    # -----------------------------

    return response.json()


def _create_iam_user(issuer, admin_access_token, username, password):
    """Generate an IAM user

    :param str issuer: url of the issuer
    :param str admin_access_token: access token to register a client
    :param str given_name: name of user
    :param str family_name: family name of the user
    """
    query = os.path.join(issuer, "scim/Users")
    headers = {
        "Authorization": f"Bearer {admin_access_token}",
        "Content-Type": "application/scim+json",
    }
    given_name, family_name = username.split("_")
    given_name = given_name.capitalize()
    family_name = family_name.capitalize()
    user_config = {
        "active": True,
        "userName": username,
        "password": password,
        "name": {
            "givenName": given_name,
            "familyName": family_name,
            "formatted": f"{given_name} {family_name}",
        },
        "emails": [
            {
                "type": "work",
                "value": f"{given_name}.{family_name}@donotexist.email",
                "primary": True,
            }
        ],
    }

    response = requests.post(
        query,
        headers=headers,
        data=json.dumps(user_config),
        timeout=5,
    )
    if not response.ok:
        typer.secho(
            f"Failed to create user {given_name} {family_name}: {response.status_code} {response.reason}",
            err=True,
            fg=c.RED,
        )
        raise typer.Exit(code=1)
    return response.json()


def _create_iam_group(issuer, admin_access_token, group_name):
    """Generate an IAM group

    :param str issuer: url of the issuer
    :param str admin_access_token: access token to register a client
    :param str group_name: name of the group
    """
    query = os.path.join(issuer, "scim/Groups")
    headers = {
        "Authorization": f"Bearer {admin_access_token}",
        "Content-Type": "application/scim+json",
    }
    group_config = {"schemas": ["urn:ietf:params:scim:schemas:core:2.0:Group"], "displayName": group_name}

    response = requests.post(
        query,
        headers=headers,
        data=json.dumps(group_config),
        timeout=5,
    )
    if not response.ok:
        typer.secho(
            f"Failed to create group {group_name}: {response.status_code} {response.reason}", err=True, fg=c.RED
        )
        raise typer.Exit(code=1)
    return response.json()


def _create_iam_subgroup(issuer, admin_access_token, group_name, group_id, subgroup_name):
    """Generate an IAM subgroup

    :param str issuer: url of the issuer
    :param str admin_access_token: access token to register a client
    :param str group_name: name of the group
    :param str group_id: id of the group
    :param str subgroup_name: name of the subgroup
    """
    subgroup_config = {
        "schemas": ["urn:ietf:params:scim:schemas:core:2.0:Group", "urn:indigo-dc:scim:schemas:IndigoGroup"],
        "urn:indigo-dc:scim:schemas:IndigoGroup": {
            "parentGroup": {
                "display": group_name,
                "value": group_id,
                r"\$ref": os.path.join(issuer, "scim/Groups", group_id),
            },
        },
        "displayName": subgroup_name,
    }

    query = os.path.join(issuer, "scim/Groups")
    headers = {
        "Authorization": f"Bearer {admin_access_token}",
        "Content-Type": "application/scim+json",
    }

    response = requests.post(
        query,
        headers=headers,
        data=json.dumps(subgroup_config),
        timeout=5,
    )
    if not response.ok:
        typer.secho(
            f"Failed to create subgroup {group_name}/{subgroup_name}: {response.status_code} {response.reason}",
            err=True,
            fg=c.RED,
        )
        raise typer.Exit(code=1)
    return response.json()


def _create_iam_group_membership(issuer, admin_access_token, username, user_id, group_ids):
    """Bind a given user to some groups/subgroups

    :param str issuer: url of the issuer
    :param str admin_access_token: access token to register a client
    :param str username: username
    :param str user_id:: id of the user
    :param list group_ids: list of group/subgroup ids
    """
    membership_config = {
        "schemas": ["urn:ietf:params:scim:api:messages:2.0:PatchOp"],
        "operations": [
            {
                "op": "add",
                "path": "members",
                "value": [
                    {"display": username, "value": user_id, r"\$ref": os.path.join(issuer, "scim/Users", user_id)}
                ],
            }
        ],
    }

    headers = {
        "Authorization": f"Bearer {admin_access_token}",
        "Content-Type": "application/scim+json",
    }
    for group_id in group_ids:
        query = os.path.join(issuer, "scim/Groups", group_id)

        response = requests.patch(
            query,
            headers=headers,
            data=json.dumps(membership_config),
            timeout=5,
        )
        if not response.ok:
            typer.secho(
                f"Failed to add {username} to {group_id}: {response.status_code} {response.reason}", err=True, fg=c.RED
            )
            raise typer.Exit(code=1)


def _make_config(modules, flags, release_var, editable):
    config = {
        "DEBUG": "True",
        # MYSQL Settings
        "DB_USER": DB_USER,
        "DB_PASSWORD": DB_PASSWORD,
        "DB_ROOTUSER": DB_ROOTUSER,
        "DB_ROOTPWD": DB_ROOTPWD,
        "DB_HOST": DB_HOST,
        "DB_PORT": DB_PORT,
        # ElasticSearch settings
        "NoSQLDB_USER": "elastic",
        "NoSQLDB_PASSWORD": "changeme",
        "NoSQLDB_HOST": "elasticsearch",
        "NoSQLDB_PORT": "9200",
        # IAM initial settings
        "IAM_INIT_CLIENT_ID": IAM_INIT_CLIENT_ID,
        "IAM_INIT_CLIENT_SECRET": IAM_INIT_CLIENT_SECRET,
        "IAM_SIMPLE_CLIENT_NAME": IAM_SIMPLE_CLIENT_NAME,
        "IAM_SIMPLE_USER": IAM_SIMPLE_USER,
        "IAM_SIMPLE_PASSWORD": IAM_SIMPLE_PASSWORD,
        "IAM_ADMIN_CLIENT_NAME": IAM_ADMIN_CLIENT_NAME,
        "IAM_ADMIN_USER": IAM_ADMIN_USER,
        "IAM_ADMIN_PASSWORD": IAM_ADMIN_PASSWORD,
        "IAM_HOST": IAM_HOST,
        "IAM_PORT": IAM_PORT,
        # Hostnames
        "SERVER_HOST": "server",
        "CLIENT_HOST": "client",
        # Test specific variables
        "WORKSPACE": "/home/dirac",
    }

    if editable:
        config["PIP_INSTALL_EXTRA_ARGS"] = "-e"

    required_feature_flags = []
    for module_name, module_ci_config in _load_module_configs(modules).items():
        config |= module_ci_config["config"]
        required_feature_flags += module_ci_config.get("required-feature-flags", [])
    config["DIRAC_CI_SETUP_SCRIPT"] = "/home/dirac/LocalRepo/TestCode/" + config["DIRAC_CI_SETUP_SCRIPT"]

    # This can likely be removed after the Python 3 migration
    if release_var:
        config |= dict([release_var.split("=", 1)])
    else:
        config["DIRAC_RELEASE"] = _find_dirac_release()

    for key, default_value in FEATURE_VARIABLES.items():
        config[key] = flags.pop(key, default_value)
    for key in required_feature_flags:
        try:
            config[key] = flags.pop(key)
        except KeyError:
            typer.secho(f"Required feature variable {key!r} is missing", err=True, fg=c.RED)
            raise typer.Exit(code=1)
    config["TESTREPO"] = [f"/home/dirac/LocalRepo/TestCode/{name}" for name in modules]
    config["ALTERNATIVE_MODULES"] = [f"/home/dirac/LocalRepo/ALTERNATIVE_MODULES/{name}" for name in modules]

    # Exit with an error if there are unused feature flags remaining
    if flags:
        typer.secho(f"Unrecognised feature flags {flags!r}", err=True, fg=c.RED)
        raise typer.Exit(code=1)

    return config


def _load_module_configs(modules):
    module_ci_configs = {}
    for module_name, module_path in modules.items():
        module_ci_config_path = module_path / "tests/.dirac-ci-config.yaml"
        if not module_ci_config_path.exists():
            continue
        module_ci_configs[module_name] = yaml.safe_load(module_ci_config_path.read_text())
    return module_ci_configs


def _build_docker_cmd(container_name, *, use_root=False, cwd="/home/dirac", tty=True):
    if use_root or os.getuid() == 0:
        user = "root"
    else:
        user = "dirac"
    cmd = ["docker", "exec"]
    if tty:
        if sys.stdout.isatty():
            cmd += ["-it"]
        else:
            typer.secho(
                'Not passing "-it" to docker as stdout is not a tty',
                err=True,
                fg=c.YELLOW,
            )
    cmd += [
        "-e=TERM=xterm-color",
        "-e=INSTALLROOT=/home/dirac",
        f"-e=INSTALLTYPE={container_name}",
        f"-u={user}",
        f"-w={cwd}",
        container_name,
    ]
    return cmd


def _list_services():
    # The Python 3 runit dir ends up in /diracos
    for runit_dir in ["ServerInstallDIR/runit", "ServerInstallDIR/diracos/runit"]:
        cmd = _build_docker_cmd("server")
        cmd += [
            "bash",
            "-c",
            f'cd {runit_dir}/ && for fn in */*/log/current; do echo "$(dirname "$(dirname "$fn")")"; done',
        ]
        ret = subprocess.run(cmd, check=False, stdout=subprocess.PIPE, text=True)
        if not ret.returncode:
            return runit_dir, ret.stdout.split()
    else:
        typer.secho("Failed to find list of available services", err=True, fg=c.RED)
        typer.secho(f"stdout was: {ret.stdout!r}", err=True)
        typer.secho(f"stderr was: {ret.stderr!r}", err=True)
        raise typer.Exit(1)


def _log_popen_stdout(p):
    while p.poll() is None:
        line = p.stdout.readline().rstrip()
        if not line:
            continue
        bg, fg = None, None
        if match := LOG_PATTERN.match(line):
            bg, fg = LOG_LEVEL_MAP.get(match.groups()[0], (bg, fg))
        typer.secho(line, err=True, bg=bg, fg=fg)


if __name__ == "__main__":
    app()