import os
import shutil

from conpeek_setup import util


def run(config):
    util.print_black_light("Preparing mail relay file")
    output_directory = os.path.join(util.get_output_path(), "mail_relay")
    template_mail_relay_directory = os.path.join(util.get_templates_path(), "mail_relay")

    shutil.rmtree(output_directory, ignore_errors=True)
    os.makedirs(output_directory, exist_ok=True)

    files_to_copy = [
        "000-default.conf",
        "ports.conf",
        "main.cf"
    ]

    for file in files_to_copy:
        util.copy_file(os.path.join(template_mail_relay_directory, file), output_directory)

    replacements = {
        'ACCESS_DOMAIN_NAME': config["new_machine_network"]["app_installation_domain"],
    }

    if "mail_relay" in config:
        replacements["POSTFIX_MYNETWORKS"] = config["mail_relay"]["mynetworks"]

    for name in replacements.keys():
        util.basic_on_location_sed(os.path.join(output_directory, "main.cf"), name, replacements[name])