#! /usr/bin/env python3

import os
import subprocess
import sys

import rwx

CHARSET = 'UTF-8'

PGP = 'git@marc.beninca.link'

MODULES = (
    'regexp',
    'memdisk', 'tar',
    'search',
    'part_gpt', 'part_msdos',
    'btrfs', 'ext2', 'fat', 'iso9660', 'udf',
    'exfat', 'hfs', 'hfspluscomp', 'ntfscomp',
    'linux', 'loopback', 'squash4',
#
    'at_keyboard', 'keylayouts', 'keystatus', 'read',
    'halt', 'reboot',
    'all_video', 'videoinfo',
    'gfxterm_background', 'jpeg', 'png', 'tga',
#
    'date', 'echo', 'eval', 'help', 'sleep', 'test', 'true',
    'cpuid', 'lspci',
    'cat', 'configfile', 'loadenv', 'progress', 'testspeed',
    'hashsum', 'gcry_sha512', 'gcry_sha256',
    'pgp', 'gcry_dsa', 'gcry_rsa',
)
BIOS_MODULES = (
    'biosdisk',
    'ntldr',
)


def run(*args):
    return subprocess.run(args, capture_output=False)


def run_line(*args):
    lines = run_lines(*args)
    return lines[0]


def run_lines(*args):
    process = subprocess.run(args, capture_output=True)
    return process.stdout.decode(CHARSET).rstrip().split(os.linesep)


def get_mount_uuid(path: str):
    return run_line('findmnt', '--noheadings', '--output', 'UUID', path)


def get_path_mount(path: str):
    return run_line('stat', '--format', '%m', path)


def get_path_uuid(path: str):
    return get_mount_uuid(get_path_mount(path))


def build(esp_root: str, data_uuid=None):
    esp_uuid = get_path_uuid(esp_root)
    grub_root = os.path.join(esp_root, 'grub')
    print(f'''
esp_root: {esp_root}
data_uuid: {data_uuid}
esp_uuid: {esp_uuid}
grub_root: {grub_root}
''', end=str())


def main():
    command, *args = sys.argv
    if args:
        data, *args = args
    else:
        data = None
    project_file = os.path.realpath(__file__)
    project_root = os.path.dirname(project_file)
    parent_root, project_name = os.path.split(project_root)
    print(f'''
command: {command}
data: {data}
project_file: {project_file}
project_root: {project_root}
parent_root: {parent_root}
project_name: {project_name}
''', end=str())
    build(parent_root, data_uuid=data)


if __name__ == '__main__':
    main()