#  Copyright (c) 2015-2018 Cisco Systems, Inc.
#
#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"), to
#  deal in the Software without restriction, including without limitation the
#  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
#  sell copies of the Software, and to permit persons to whom the Software is
#  furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice shall be included in
#  all copies or substantial portions of the Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
#  DEALINGS IN THE SOFTWARE.
"""Molecule Shell Module."""
import atexit
import os
import sys

import click
import packaging

import molecule
from molecule import command, logger
from molecule.api import drivers
from molecule.app import app
from molecule.command.base import click_group_ex
from molecule.config import MOLECULE_DEBUG, MOLECULE_VERBOSITY
from molecule.console import console
from molecule.util import do_report, lookup_config_file

# Setup logging. This location of initialization is not ideal, but the code
# structure does not give us much choice because config file lookup down below
# uses logging facilities. Do note that verbosity level set by the
# command-line flags does not affect the things that execute before the main
# method in this file that parses the command line arguments.
#
# It would be ideal if we could get a chance at parsing CLI args before any of
# the real code executes, but this is really hard to do while using click for
# constructing out CLI API.
logger.configure()

LOCAL_CONFIG_SEARCH = ".config/molecule/config.yml"
LOCAL_CONFIG = lookup_config_file(LOCAL_CONFIG_SEARCH)

ENV_FILE = ".env.yml"


def print_version(ctx, param, value):
    """Print version information."""
    if not value or ctx.resilient_parsing:
        return

    v = packaging.version.Version(molecule.__version__)
    color = "bright_yellow" if v.is_prerelease else "green"
    msg = f"molecule [{color}]{v}[/] using python [repr.number]{sys.version_info[0]}.{sys.version_info[1]}[/] \n"

    msg += f"    [repr.attrib_name]ansible[/][dim]:[/][repr.number]{app.runtime.version}[/]"
    for driver in drivers():
        msg += f"\n    [repr.attrib_name]{driver!s}[/][dim]:[/][repr.number]{driver.version}[/][dim] from {driver.module}"
        if driver.required_collections:
            msg += " requiring collections:"
            for name, version in driver.required_collections.items():
                msg += f" [repr.attrib_name]{name}[/]>=[repr.number]{version}[/]"
        msg += "[/]"
    console.print(msg, highlight=False)

    ctx.exit()


@click_group_ex()  # type: ignore
@click.option(
    "--debug/--no-debug",
    default=MOLECULE_DEBUG,
    help="Enable or disable debug mode. Default is disabled.",
)
@click.option(
    "-v",
    "--verbose",
    count=True,
    default=MOLECULE_VERBOSITY,
    help="Increase Ansible verbosity level. Default is 0.",
)
@click.option(
    "--base-config",
    "-c",
    multiple=True,
    default=[LOCAL_CONFIG] if LOCAL_CONFIG else [],
    help=(
        "Path to a base config (can be specified multiple times)."
        " If provided, Molecule will first load and deep merge the"
        " configurations in the specified order,"
        " and deep merge each scenario's "
        "molecule.yml on top. By default Molecule is looking for "
        f"'{LOCAL_CONFIG_SEARCH}' "
        "in current VCS repository and if not found it will look "
        f"in user home. ({LOCAL_CONFIG})."
    ),
)
@click.option(
    "--env-file",
    "-e",
    default=ENV_FILE,
    help=("The file to read variables from when rendering molecule.yml. (.env.yml)"),
)
@click.option(
    "--version",
    is_flag=True,
    callback=print_version,
    expose_value=False,
    is_eager=True,
)
@click.pass_context
def main(ctx, debug, verbose, base_config, env_file):  # pragma: no cover
    """Molecule aids in the development and testing of Ansible roles.

    To enable autocomplete for a supported shell execute command below after
    replacing SHELL with either bash, zsh, or fish:

        eval "$(_MOLECULE_COMPLETE=SHELL_source molecule)"
    """
    ctx.obj = {}
    ctx.obj["args"] = {}
    ctx.obj["args"]["debug"] = debug
    ctx.obj["args"]["verbose"] = verbose
    ctx.obj["args"]["base_config"] = base_config
    ctx.obj["args"]["env_file"] = env_file

    logger.set_log_level(verbose, debug)
    if verbose:
        os.environ["ANSIBLE_VERBOSITY"] = str(verbose)

    if "MOLECULE_REPORT" in os.environ:
        atexit.register(do_report)


main.add_command(command.cleanup.cleanup)
main.add_command(command.check.check)
main.add_command(command.converge.converge)
main.add_command(command.create.create)
main.add_command(command.dependency.dependency)
main.add_command(command.destroy.destroy)
main.add_command(command.drivers.drivers)
main.add_command(command.idempotence.idempotence)
main.add_command(command.init.init)
main.add_command(command.list.list)
main.add_command(command.login.login)
main.add_command(command.matrix.matrix)
main.add_command(command.prepare.prepare)
main.add_command(command.reset.reset)
main.add_command(command.side_effect.side_effect)
main.add_command(command.syntax.syntax)
main.add_command(command.test.test)
main.add_command(command.verify.verify)
