// Read-only share link for the open project: status, enable, revoke, copy.
import { useEffect, useState } from 'react';
import { disableSharing, enableSharing, getShareStatus } from '../syncService.js';

export function useShareLink(projectId) {
  const [shareToken, setShareToken] = useState(null);
  const [shareBusy, setShareBusy] = useState(false);
  const [shareCopied, setShareCopied] = useState(false);

  useEffect(() => {
    setShareToken(null);
    if (!projectId) return;
    let active = true;
    getShareStatus(projectId).then((result) => {
      if (active && result.ok) setShareToken(result.data.shareToken);
    });
    return () => { active = false; };
  }, [projectId]);

  const shareUrl = shareToken
    ? `${window.location.origin}${window.location.pathname}?share=${shareToken}`
    : '';

  const enable = async () => {
    setShareBusy(true);
    const result = await enableSharing(projectId);
    setShareBusy(false);
    if (result.ok) setShareToken(result.data.shareToken);
  };

  const revoke = async () => {
    if (!window.confirm('Revoke this share link? Anyone using it will lose access immediately.')) return;
    setShareBusy(true);
    const result = await disableSharing(projectId);
    setShareBusy(false);
    if (result.ok) setShareToken(null);
  };

  const copy = () => {
    if (!shareUrl) return;
    navigator.clipboard.writeText(shareUrl).then(() => {
      setShareCopied(true);
      window.setTimeout(() => setShareCopied(false), 2000);
    });
  };

  return { shareToken, shareUrl, shareBusy, shareCopied, enable, revoke, copy };
}