from pathlib import Path

from integrations import docker
from integrations.docker import DockerContainer
from integrations.docker.ports import _get_random_port


async def create_proxy(
        port: int,
        service: DockerContainer,
        code: str,
) -> dict[str, object]:
    """
    Utility function that will:
     - run ``integrations/docker`` utilities to change the old port of original service to a random one
     /- write ``code`` into ``/tmp/theplug/{random}.py``
     - start a subprocess via asyncio
     - return the proxy infos (pid, )
    """
    path = Path(f"/tmp/theplug/{service['name']}.py")
    path.parent.mkdir(parents=True, exist_ok=True)

    path.write_text(code, encoding="utf-8")

    # da qui bisogna:
    # scegliere una porta random alla quale spostare il docker
    # modificare il docker via  integrations.docker.editor.change_port ( service.folder, service.name, port, random_nuova_port )
    random_port = _get_random_port()
    changed = await docker.change_port(
        service["name"],
        service["folder"],
        port,
        random_port,
    )

    return {
        "service": service["name"],
        "previous_port": port,
        "upstream_port": random_port,
        "script_path": str(path),
        "port_changed": changed,
    }