"""
web/routes/config_routes.py — Keyword groups and channel list management.

GET  /config/keywords → render groups editor
PUT  /config/keywords → validate + save groups, reload scorer
GET  /config/channels → render channel list
PUT  /config/channels → save channels, signal bot to re-watch
"""

import re

from fastapi import APIRouter, Depends, HTTPException, Request, status
from fastapi.responses import RedirectResponse

import config
import utils.scorer as scorer
from tui import events as bus
from web.dependencies import require_role
from web.models import ChannelsPayload, KeywordGroupsPayload

router = APIRouter()


def _templates(request: Request):
    return request.app.state.templates


@router.get("/config/keywords")
async def keywords_page(request: Request, user=Depends(require_role("admin"))):
    return _templates(request).TemplateResponse(
        request, "config.html",
        {
            "user":       dict(user),
            "groups":     config.KEYWORD_GROUPS,
            "channels":   config.WATCHED_CHANNELS,
            "active_tab": "keywords",
        },
    )


@router.put("/config/keywords")
async def update_keywords(payload: KeywordGroupsPayload, _user=Depends(require_role("admin"))):
    groups = [g.model_dump() for g in payload.groups]
    config.save_runtime_config(groups, config.WATCHED_CHANNELS)
    scorer.reload_from_config()
    return {"status": "ok", "groups": len(groups)}


@router.get("/config/channels")
async def channels_page(request: Request, user=Depends(require_role("admin"))):
    return _templates(request).TemplateResponse(
        request, "config.html",
        {
            "user":       dict(user),
            "groups":     config.KEYWORD_GROUPS,
            "channels":   config.WATCHED_CHANNELS,
            "active_tab": "channels",
        },
    )


@router.put("/config/channels")
async def update_channels(payload: ChannelsPayload, _user=Depends(require_role("admin"))):
    config.save_runtime_config(config.KEYWORD_GROUPS, payload.channels)
    bus.signal_channel_changed()
    return {"status": "ok", "channels": len(payload.channels)}