import subprocess
import configparser
from hcloud import Client
import argparse
import pathlib
import sys

UPDATE_SCRIPT_PATH = pathlib.Path(__file__).parent / "update_local_config.py"
CONFIG_PATH = "config.ini"


def get_hetzner_client():
    config = configparser.ConfigParser()
    config.read(CONFIG_PATH)
    api_token = config["hetzner"]["api_token"]
    return Client(token=api_token)


def list_hetzner_servers(client):
    return client.servers.get_all()


def delete_hetzner_server(client, server):
    server.delete()


def run_update_script(provider, location, server_type, interface, config_path):
    command = [
        sys.executable,
        UPDATE_SCRIPT_PATH,
        "--provider",
        provider,
        "--location",
        location,
        "--server_type",
        server_type,
        "--interface",
        interface,
    ]

    if config_path:
        command.extend(["--config_path", config_path])

    result = subprocess.run(command, capture_output=True, text=True)
    if result.returncode != 0:
        raise Exception(f"Error executing update script: {result.stderr}")
    print(result.stdout)


def main():
    parser = argparse.ArgumentParser(
        description="Manage Hetzner servers and update local Wireguard VPN."
    )
    parser.add_argument("--location", type=str, required=True, help="Server location")
    parser.add_argument("--server_type", type=str, required=True, help="Server type")
    parser.add_argument(
        "--interface", type=str, required=True, help="Wireguard interface (e.g., wg0)"
    )
    parser.add_argument(
        "--config_path", type=str, help="Path to the Wireguard configuration file"
    )

    args = parser.parse_args()

    provider = "hetzner"
    location = args.location
    server_type = args.server_type
    interface = args.interface
    config_path = args.config_path

    # Step 1: Get Hetzner client and list existing servers
    client = get_hetzner_client()
    existing_servers = list_hetzner_servers(client)

    # Step 2: Run the update_local_config.py script
    run_update_script(provider, location, server_type, interface, config_path)

    # Step 3: Delete old servers that existed before running the update script
    for server in existing_servers:
        delete_hetzner_server(client, server)
        print(f"Deleted server: {server.name}")


if __name__ == "__main__":
    main()