"""The crowd: several models answering one turn, in any chat.

Its own module because it is its own page, and it is its own page because as a card
on `/admin/agents` it read as an agent-chat feature. It is not one: a crowd works in
an ordinary conversation, and the owner reasonably concluded otherwise from where
the switch was sitting.
"""

from __future__ import annotations

import logging

from fastapi import APIRouter, Form, Request, Response, status
from fastapi.responses import RedirectResponse

from lembas.api.deps import AdminUser, Db
from lembas.services import settings_store
from lembas.web.templating import render

log = logging.getLogger(__name__)

router = APIRouter(prefix="/admin/crowd", tags=["admin-crowd"])


@router.get("")
async def crowd_page(request: Request, db: Db, user: AdminUser, saved: str = ""):
    """Its own page, for the reason its template records: as a card on the Agents
    screen it read as an agent-chat feature, which it is not."""
    return render(
        request,
        "admin/crowd.html",
        {"crowd": settings_store.crowd(db), "saved": saved},
    )


@router.post("")
async def save_crowd(
    db: Db,
    user: AdminUser,
    enabled: bool = Form(False),
    max_models: int = Form(4),
    max_rounds: int = Form(2),
    wall_seconds: int = Form(900),
    collapse_agreement: bool = Form(False),
) -> Response:
    """One group, one form, one route.

    The bounds are clamped here as well as in `settings_store.crowd`, which is the
    same belt-and-braces `save_subagents` in `admin_agents.py` uses: a value posted
    past this route -- by an older page, or by hand -- still reads back sane.
    """
    settings_store.update(
        db,
        {
            "enabled": enabled,
            # Every floor is one: a zero would be the feature switched off
            # wearing the switch's clothes.
            "max_models": min(max(max_models, 1), 8),
            "max_rounds": min(max(max_rounds, 1), 5),
            "wall_seconds": min(max(wall_seconds, 60), 7200),
            "collapse_agreement": collapse_agreement,
        },
        key=settings_store.CROWD,
    )
    log.info("crowd %s by %s", "enabled" if enabled else "disabled", user.email)
    return RedirectResponse("/admin/crowd?saved=1", status_code=status.HTTP_303_SEE_OTHER)