from __future__ import annotations

from fastapi import Request

from config import get_settings


def public_base_url(request: Request) -> str:
    """URL сайта: домен из Dokploy (Host), без прописывания в .env."""
    settings = get_settings()
    if settings.site_public_url.strip():
        return settings.site_public_url.strip().rstrip("/")

    proto = (
        request.headers.get("x-forwarded-proto")
        or request.url.scheme
        or "https"
    ).split(",")[0].strip()
    host = (
        request.headers.get("x-forwarded-host")
        or request.headers.get("host")
        or request.url.netloc
    )
    host = host.split(",")[0].strip()
    return f"{proto}://{host}".rstrip("/")