#!/usr/bin/env python3
"""CLI wrapper for running QMK commands.
"""
import os
import sys
from importlib.util import find_spec

# Add the QMK python libs to our path
script_dir = os.path.dirname(os.path.realpath(__file__))
qmk_dir = os.path.abspath(os.path.join(script_dir, '..'))
python_lib_dir = os.path.abspath(os.path.join(qmk_dir, 'lib', 'python'))
sys.path.append(python_lib_dir)

# Make sure our modules have been setup
with open(os.path.join(qmk_dir, 'requirements.txt'), 'r') as fd:
    for line in fd.readlines():
        line = line.strip().replace('<', '=').replace('>', '=')

        if line[0] == '#':
            continue

        if '#' in line:
            line = line.split('#')[0]

        module = line.split('=')[0] if '=' in line else line

        if module in ['pep8-naming']:
            # Not every module is importable by its own name.
            continue

        if not find_spec(module):
            print('Could not find module %s!' % module)
            print('Please run `pip3 install -r requirements.txt` to install the python dependencies.')
            exit(255)

# Setup the CLI
import milc  # noqa

milc.EMOJI_LOGLEVELS['INFO'] = '{fg_blue}Ψ{style_reset_all}'


@milc.cli.entrypoint('QMK Helper Script')
def qmk_main(cli):
    """The function that gets run when no subcommand is provided.
    """
    cli.print_help()


def main():
    """Setup our environment and then call the CLI entrypoint.
    """
    # Change to the root of our checkout
    os.environ['ORIG_CWD'] = os.getcwd()
    os.chdir(qmk_dir)

    # Import the subcommands
    import qmk.cli  # noqa

    # Execute
    return_code = milc.cli()

    if return_code is False:
        exit(1)

    elif return_code is not True and isinstance(return_code, int):
        if return_code < 0 or return_code > 255:
            milc.cli.log.error('Invalid return_code: %d', return_code)
            exit(255)

        exit(return_code)

    exit(0)


if __name__ == '__main__':
    main()