import { useEffect, useRef } from 'react';
import { useSetAtom } from 'jotai';
import { Icons } from 'folds';
import { CallEmbed } from '../plugins/call';
import { toastQueueAtom } from '../state/toast';
import { useSetting } from '../state/hooks/settings';
import { settingsAtom } from '../state/settings';
import { denoiseNotice, DenoiseStateReport } from '../utils/denoiseNotice';

/**
 * [Gitea #260] Tell the user when ML noise suppression didn't attach (raw mic)
 * or fell back to another model. The fork's `io.lotus.denoise_state` used to
 * go unanswered ("unsupported action"), so failures were silent.
 */
export function useDenoiseNotices(embed: CallEmbed): void {
  const setToast = useSetAtom(toastQueueAtom);
  const [mode] = useSetting(settingsAtom, 'callNoiseSuppression');
  const [model] = useSetting(settingsAtom, 'callDenoiseModel');
  const latest = useRef({ mode, model });
  latest.current = { mode, model };
  useEffect(
    () =>
      embed.listenAction<{ data?: DenoiseStateReport }>('io.lotus.denoise_state', (evt) => {
        if (latest.current.mode !== 'ml') return;
        const body = denoiseNotice(latest.current.model, evt.detail?.data);
        if (!body) return;
        setToast({
          id: `denoise-state-${Date.now()}`,
          iconSrc: Icons.Mic,
          displayName: 'Noise suppression',
          body,
          roomName: embed.room.name ?? 'Voice call',
          roomId: embed.roomId,
        });
      }),
    [embed, setToast],
  );
}