import click
import subprocess as sp
import os

from app.helper import install_available, get_distro_name

@click.group()
def file_scan():
    pass


@file_scan.command("setup")
@click.option("--path", required=True)
@click.option("--base_dir", required=True)
@click.option("--file_prefix", required=True)
@click.option("--etcd_url", required=True)
@click.option("--branch", default="master")
def setup(path, base_dir, file_prefix, etcd_url, branch):
    os.chdir(path)

    repo_name = "ucloud-file-scan"

    # Clone main repository
    sp.check_output(['git', 'clone', '--single-branch', '--branch', branch,
                    f'https://code.ungleich.ch/ungleich-public/{repo_name}.git'])
    
    # Create .env file
    with open(os.path.join(repo_name, ".env"), "w") as f:
        content = (
            f"BASE_DIR={base_dir}\n"
            f"FILE_PREFIX={file_prefix}\n"
            f"ETCD_URL={etcd_url}\n",
            f"VM_PREFIX=/v1/vm/\n",
            f"HOST_PREFIX=/v1/host/\n",
            f"IMAGE_PREFIX=/v1/image/\n",
            f"IMAGE_STORE_PREFIX=/v1/image_store/\n",
            f"REQUEST_PREFIX=/v1/request/\n",
            f"FILE_PREFIX=/v1/file/\n"
        )
        f.writelines(content)
   
    install_available(repo_name)

    # Create virtualenv with site-packages enabled and install all dependencies
    sp.check_output(['pipenv', 'install'], cwd=repo_name)

    
    # Write Crontab entry
    if get_distro_name() == "alpine":
        crontab_path = "/etc/crontabs/root"
    else:
        crontab_path = "/etc/crontab"
    
    with open(crontab_path, "a") as crontab:
        crontab.write(
            f"*/1\t*\t*\t*\t*\t$(cd {os.path.join(os.getcwd(), repo_name)} && pipenv run python main.py)\n"
        )