from django.shortcuts import render, redirect
from django.views.decorators.http import require_http_methods
from elastic.es_connect import get_user_by_id


@require_http_methods(["GET"])
def home(request):
    # Enforce login: require session user_id
    session_user_id = request.session.get("user_id")
    if session_user_id is None:
        return redirect("/accounts/login/")

    # Show user_id (prefer query param if present, but don't trust it)
    user_id_qs = request.GET.get("user_id")
    uid = user_id_qs or session_user_id
    perm = request.session.get("permission")
    if perm is None and uid is not None:
        u = get_user_by_id(uid)
        try:
            perm = int((u or {}).get("permission", 1))
        except Exception:
            perm = 1
        request.session["permission"] = perm
    else:
        try:
            perm = int(perm)
        except Exception:
            perm = 1
    context = {
        "user_id": uid,
        "is_admin": (int(perm) == 0),
    }
    return render(request, "main/home.html", context)