"""Initialise the toolbelt."""


from os import mkdir
from os.path import exists
from subprocess import STDOUT

import click
from emoji import emojize

from autonomic.config import CONFIG_DIR, CONFIG_YAML, INFRA_DIR, INFRA_REPO
from autonomic.infra import members
from autonomic.logger import log
from autonomic.settings import add
from autonomic.utils import is_proc, question_ask, run


@click.command()
@click.pass_context
def init(ctx):
    """Initialise the toolbelt."""
    create_configuration()
    clone_infrastructure_repo()
    store_username()
    install_dependencies()
    ssh_sanity_check()

    msg = "Hack the planet! :earth_africa:"
    log.success(emojize(msg, use_aliases=True))


def create_configuration():
    """Create toolbelt config directory."""
    if not exists(CONFIG_DIR):
        mkdir(CONFIG_DIR)

    if not exists(CONFIG_YAML):
        with open(CONFIG_YAML, "w") as handle:
            handle.write("---")


def clone_infrastructure_repo():
    """Clone or update the infrastructure repository."""
    if not exists(INFRA_DIR):
        cmd = ["git", "clone", INFRA_REPO, INFRA_DIR]
        run(cmd, stderr=STDOUT)
    else:
        cmd = ["git", "pull", "origin", "master"]
        run(cmd, cwd=INFRA_DIR, stderr=STDOUT)


def store_username():
    """Store Autonomic username in the settings."""
    usernames = members(flatten="username")
    username = question_ask(
        "username", "What is you Autonomic username?", usernames,
    )
    add({"username": username})

    msg = "Welcome comrade {} :kissing:".format(username)
    log.success(emojize(msg, use_aliases=True))


def install_dependencies():
    """Install infrastructure dependencies."""
    cmd = ["/usr/bin/python3", "-m", "venv", ".venv"]
    run(cmd, cwd=INFRA_DIR, stderr=STDOUT)

    cmd = [".venv/bin/pip", "install", "-r", "requirements.txt"]
    run(cmd, stderr=STDOUT)

    cmd = [
        ".venv/bin/ansible-galaxy",
        "install",
        "-r",
        "requirements.yml",
        "--force",
    ]
    run(cmd, stderr=STDOUT)


def ssh_sanity_check():
    """Try to recommend some SSH tips."""
    if not is_proc("ssh-agent"):
        msg = "warning: ssh-agent is not running :sob:"
        log.warning(emojize(msg, use_aliases=True))
    else:
        msg = "ssh-agent is running :rocket:"
        log.success(emojize(msg, use_aliases=True))