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feat(categorize): enrich URL-only bookmarks before categorization #23

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feat(categorize): enrich URL-only bookmarks before categorization #23

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48 changes: 46 additions & 2 deletions app/api/categorize/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,33 @@ import {
import { backfillEntities } from '@/lib/rawjson-extractor'
import { rebuildFts } from '@/lib/fts'

/** Lightweight link preview: returns title + description from og/meta tags. */
async function fetchLinkPreview(url: string): Promise<{ title: string; description: string } | null> {
try {
const res = await fetch(url, {
method: 'GET',
signal: AbortSignal.timeout(8000),
headers: { 'User-Agent': 'Mozilla/5.0 (compatible; Googlebot/2.1)' },
})
if (!res.ok) return null
const html = await res.text()
const get = (...patterns: RegExp[]) => {
for (const p of patterns) { const m = html.match(p); if (m?.[1]) return m[1].trim() }
return ''
}
const title = get(/<meta[^>]+property=["']og:title["'][^>]+content=["']([^"']+)/i,
/<meta[^>]+content=["']([^"']+)["'][^>]+property=["']og:title["']/i,
/<title>([^<]+)<\/title>/i)
const description = get(/<meta[^>]+property=["']og:description["'][^>]+content=["']([^"']+)/i,
/<meta[^>]+content=["']([^"']+)["'][^>]+property=["']og:description["']/i,
/<meta[^>]+name=["']description["'][^>]+content=["']([^"']+)/i)
if (!title && !description) return null
return { title, description }
} catch {
return null
}
}

type Stage = 'vision' | 'entities' | 'enrichment' | 'categorize' | 'parallel'

interface CategorizationState {
Expand Down Expand Up @@ -304,8 +331,25 @@ export async function POST(request: NextRequest): Promise<NextResponse> {
.map((m) => m.imageTags)
.filter((t): t is string => t !== null && t !== '' && t !== '{}')

if (imageTags.length === 0 && bm.text.length < 20) {
// Trivial bookmark — skip enrichment
// If text is too short but we have a URL, try to enrich from the page title/description
let enrichedText = bm.text
if (imageTags.length === 0 && bm.text.length < 20 && bm.entities) {
try {
const ents = JSON.parse(bm.entities) as { urls?: Array<{ expanded?: string }> }
const url = ents?.urls?.[0]?.expanded
if (url) {
const preview = await fetchLinkPreview(url)
if (preview) {
enrichedText = [preview.title, preview.description].filter(Boolean).join('. ')
// Persist so future runs don't re-fetch
await prisma.bookmark.update({ where: { id: bm.id }, data: { text: enrichedText } })
}
}
} catch { /* ignore — best effort */ }
}

if (imageTags.length === 0 && enrichedText.length < 20) {
// Truly trivial bookmark (no text, no media, no url preview) — skip enrichment
await prisma.bookmark.update({ where: { id: bm.id }, data: { semanticTags: '[]' } })
} else {
let entities: BookmarkForEnrichment['entities'] = undefined
Expand Down