44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
import { BellIcon } from '@heroicons/react/outline'
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import clsx from 'clsx'
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import { Row } from 'web/components/layout/row'
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import { useEffect, useState } from 'react'
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import { usePrivateUser } from 'web/hooks/use-user'
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import { useRouter } from 'next/router'
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import { useUnseenGroupedNotification } from 'web/hooks/use-notifications'
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import { NOTIFICATIONS_PER_PAGE } from 'web/pages/notifications'
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import { PrivateUser } from 'common/user'
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export default function NotificationsIcon(props: { className?: string }) {
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const privateUser = usePrivateUser()
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return (
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<Row className="relative justify-center">
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{privateUser && <UnseenNotificationsBubble privateUser={privateUser} />}
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<BellIcon className={clsx(props.className)} />
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</Row>
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)
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}
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function UnseenNotificationsBubble(props: { privateUser: PrivateUser }) {
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const router = useRouter()
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const { privateUser } = props
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const [seen, setSeen] = useState(false)
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useEffect(() => {
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if (router.pathname.endsWith('notifications')) return setSeen(true)
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else setSeen(false)
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}, [router.pathname])
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const notifications = useUnseenGroupedNotification(privateUser)
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if (!notifications || notifications.length === 0 || seen) {
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return null
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}
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return (
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<div className="-mt-0.75 absolute ml-3.5 min-w-[15px] rounded-full bg-indigo-500 p-[2px] text-center text-[10px] leading-3 text-white lg:left-0 lg:-mt-1 lg:ml-2">
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{notifications.length > NOTIFICATIONS_PER_PAGE
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? `${NOTIFICATIONS_PER_PAGE}+`
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: notifications.length}
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</div>
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)
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}
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