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/*
Copyright (C) 2025 QuantumNous
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
For commercial licensing, please contact support@quantumnous.com
*/
import { useState, useEffect } from 'react';
export const useNotifications = (statusState) => {
const [noticeVisible, setNoticeVisible] = useState(false);
const [unreadCount, setUnreadCount] = useState(0);
const announcements = statusState?.status?.announcements || [];
// Helper functions
const getAnnouncementKey = (a) =>
`${a?.publishDate || ''}-${(a?.content || '').slice(0, 30)}`;
const calculateUnreadCount = () => {
if (!announcements.length) return 0;
let readKeys = [];
try {
readKeys = JSON.parse(localStorage.getItem('notice_read_keys')) || [];
} catch (_) {
readKeys = [];
}
const readSet = new Set(readKeys);
return announcements.filter((a) => !readSet.has(getAnnouncementKey(a)))
.length;
};
const getUnreadKeys = () => {
if (!announcements.length) return [];
let readKeys = [];
try {
readKeys = JSON.parse(localStorage.getItem('notice_read_keys')) || [];
} catch (_) {
readKeys = [];
}
const readSet = new Set(readKeys);
return announcements
.filter((a) => !readSet.has(getAnnouncementKey(a)))
.map(getAnnouncementKey);
};
// Effects
useEffect(() => {
setUnreadCount(calculateUnreadCount());
}, [announcements]);
// Actions
const handleNoticeOpen = () => {
setNoticeVisible(true);
};
const handleNoticeClose = () => {
setNoticeVisible(false);
if (announcements.length) {
let readKeys = [];
try {
readKeys = JSON.parse(localStorage.getItem('notice_read_keys')) || [];
} catch (_) {
readKeys = [];
}
const mergedKeys = Array.from(
new Set([...readKeys, ...announcements.map(getAnnouncementKey)]),
);
localStorage.setItem('notice_read_keys', JSON.stringify(mergedKeys));
}
setUnreadCount(0);
};
return {
noticeVisible,
unreadCount,
announcements,
handleNoticeOpen,
handleNoticeClose,
getUnreadKeys,
};
};
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