Files
smesh/src/components/Note/Highlight.tsx
2025-12-18 16:19:39 +08:00

134 lines
4.0 KiB
TypeScript

import { useFetchEvent, useTranslatedEvent } from '@/hooks'
import { createFakeEvent } from '@/lib/event'
import { toNote } from '@/lib/link'
import { isValidPubkey } from '@/lib/pubkey'
import { generateBech32IdFromATag, generateBech32IdFromETag } from '@/lib/tag'
import { cn } from '@/lib/utils'
import { useSecondaryPage } from '@/PageManager'
import { Event } from 'nostr-tools'
import { useMemo } from 'react'
import { useTranslation } from 'react-i18next'
import Content from '../Content'
import ContentPreview from '../ContentPreview'
import ExternalLink from '../ExternalLink'
import UserAvatar from '../UserAvatar'
export default function Highlight({ event, className }: { event: Event; className?: string }) {
const translatedEvent = useTranslatedEvent(event.id)
const comment = useMemo(
() => (translatedEvent?.tags ?? event.tags).find((tag) => tag[0] === 'comment')?.[1],
[event, translatedEvent]
)
return (
<div className={cn('text-wrap break-words whitespace-pre-wrap space-y-4', className)}>
{comment && <Content event={createFakeEvent({ content: comment, tags: event.tags })} />}
<div className="flex gap-4">
<div className="w-1 flex-shrink-0 my-1 bg-primary/60 rounded-md" />
<div className="italic whitespace-pre-line">
{translatedEvent?.content ?? event.content}
</div>
</div>
<HighlightSource event={event} />
</div>
)
}
function HighlightSource({ event }: { event: Event }) {
const { t } = useTranslation()
const { push } = useSecondaryPage()
const sourceTag = useMemo(() => {
let sourceTag: string[] | undefined
for (const tag of event.tags) {
// Highest priority: 'source' tag
if (tag[2] === 'source') {
sourceTag = tag
break
}
// Give 'e' tags highest priority
if (tag[0] === 'e') {
sourceTag = tag
continue
}
// Give 'a' tags second priority over 'e' tags
if (tag[0] === 'a' && (!sourceTag || sourceTag[0] !== 'e')) {
sourceTag = tag
continue
}
// Give 'r' tags lowest priority
if (tag[0] === 'r' && (!sourceTag || sourceTag[0] === 'r')) {
sourceTag = tag
continue
}
}
return sourceTag
}, [event])
const { event: referenceEvent } = useFetchEvent(
sourceTag
? sourceTag[0] === 'e'
? generateBech32IdFromETag(sourceTag)
: sourceTag[0] === 'a'
? generateBech32IdFromATag(sourceTag)
: undefined
: undefined
)
const referenceEventId = useMemo(() => {
if (!sourceTag || sourceTag[0] === 'r') return
if (sourceTag[0] === 'e') {
return sourceTag[1]
}
if (sourceTag[0] === 'a') {
return generateBech32IdFromATag(sourceTag)
}
}, [sourceTag])
const pubkey = useMemo(() => {
if (referenceEvent) {
return referenceEvent.pubkey
}
if (sourceTag && sourceTag[0] === 'a') {
const [, pubkey] = sourceTag[1].split(':')
if (isValidPubkey(pubkey)) {
return pubkey
}
}
}, [sourceTag, referenceEvent])
if (!sourceTag) {
return null
}
if (sourceTag[0] === 'r') {
return (
<div className="truncate text-muted-foreground">
{t('From')}{' '}
<ExternalLink
url={sourceTag[1]}
className="underline italic text-muted-foreground hover:text-foreground"
/>
</div>
)
}
return (
<div className="flex items-center gap-2 text-muted-foreground">
<div className="shrink-0">{t('From')}</div>
{pubkey && <UserAvatar userId={pubkey} size="xSmall" className="cursor-pointer" />}
{referenceEventId && (
<div
className="truncate underline pointer-events-auto cursor-pointer hover:text-foreground"
onClick={(e) => {
e.stopPropagation()
push(toNote(referenceEvent ?? referenceEventId))
}}
>
{referenceEvent ? <ContentPreview event={referenceEvent} /> : referenceEventId}
</div>
)}
</div>
)
}