from configparser import ConfigParser
from pathlib import Path
from json import dump
import subprocess

config = ConfigParser()

conf = config.read("config.ini")

options = {"ftp": ["host", "user", "pass", "lftp"], "file": ["local", "remote"]}


def check_config_valid(config: ConfigParser, options: dict[str, list[str]]) -> bool:
    for sec in options:
        if not config.has_section(sec):
            return False
        for opt in options[sec]:
            if not config.has_option(sec, opt):
                return False
    return True


def default_config(config: ConfigParser, options: dict[str, list[str]]) -> None:
    config.clear()
    for sec in options:
        config.add_section(sec)
        for opt in options[sec]:
            config[sec][opt] = ""
    with open("config.ini", "w") as f:
        config.write(f)


if not check_config_valid(config, options):
    default_config(config, options)


def generate_db(config: ConfigParser) -> None:
    local_dir = Path(config["file"]["local"])
    categories = Path(local_dir, "categories")
    output = []
    for category in categories.iterdir():
        if not category.is_dir():
            continue
        output_category = {"name": category.name, "files": []}
        for file in category.iterdir():
            output_category["files"].append(file.name)
        output.append(output_category)
    with open(Path(local_dir, "db.json"), "w") as f:
        dump(output, f)


generate_db(config)

sync_all_command = [
    config["ftp"]["lftp"],
    f'-e mirror -R -e --parallel=10 {config["file"]["local"]} {config["file"]["remote"]}; exit',
    "-u",
    f'{config["ftp"]["user"]},{config["ftp"]["pass"]}',
    config["ftp"]["host"],
]

sync_files_command = [
    config["ftp"]["lftp"],
    f'-e mirror -R -e --parallel=10 {config["file"]["local"]}/categories {config["file"]["remote"]}/categories; exit',
    "-u",
    f'{config["ftp"]["user"]},{config["ftp"]["pass"]}',
    config["ftp"]["host"],
]

print(subprocess.run(sync_files_command))