yunzhu-im-mobile/composables/useUnreadBadge.js

/**
 * 底部「消息」Tab 角标：统一走 GET /messages/unread-count
 */
import { getUnreadCount, getToken } from '../utils/api'
import { chatStore } from '../store/chat'

export async function fetchUnreadCountAndUpdateTabBar() {
	const token = getToken()
	if (!token) {
		chatStore.setTabBarUnreadFromServer(0)
		return
	}
	try {
		const raw = await getUnreadCount(token)
		const n =
			typeof raw === 'number'
				? raw
				: raw != null && typeof raw === 'object'
					? Number(raw.count ?? raw.unread_count ?? raw.total ?? 0)
					: Number(raw) || 0
		chatStore.setTabBarUnreadFromServer(n)
	} catch (e) {
		// 网络失败时保留当前角标
	}
}