feat(03-06): Hashtag search end-to-end — Phase 3 complete
- hashtag-helpers.ts: extractHashtags (regex+dedup) + saveHashtags (upsert) - parse-caption.ts: parseCaption → CaptionSegment[] for client rendering - search.byHashtag GREEN: hashtag.findUnique → postHashtag.findMany + pagination - posts.create + reposts.create: extract+save hashtags after post creation - /hashtag/[tag]: infinite scroll post grid + useInView sentinel - /search Tags tab: byHashtag query wired, 3-col post grid - PostCard: parseCaption replaces raw caption — hashtags are orange Link to /hashtag/[tag] - STATE.md: Phase 3 complete, 3/7 phases done Tests: 67 passing, 0 failing (5 todo), tsc clean Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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@@ -3,15 +3,15 @@ gsd_state_version: 1.0
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milestone: v1.0
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milestone_name: milestone
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status: executing
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stopped_at: Phase 3 plan 01 starting
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stopped_at: Phase 3 complete (6/6)
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last_updated: "2026-06-13T00:00:00.000Z"
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last_activity: 2026-06-13 -- Phase 2 complete (6/6); Phase 3 planning done; ready to execute 03-01
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last_activity: 2026-06-13 -- Phase 3 complete; 67 tests passing; ready for Phase 4
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progress:
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total_phases: 7
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completed_phases: 2
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completed_phases: 3
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total_plans: 16
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completed_plans: 10
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percent: 29
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completed_plans: 16
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percent: 57
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---
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# Project State
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@@ -25,12 +25,11 @@ See: .planning/PROJECT.md (updated 2026-06-05)
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## Current Position
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Phase: 3 (Engagement and Discovery) — READY TO EXECUTE
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Plan: 1 of 6 — 03-01 (Schema Foundation + Stubs)
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Status: Planning complete; execution starting
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Last activity: 2026-06-13 -- Phase 3 planning artifacts created (CONTEXT, RESEARCH, UI-SPEC, VALIDATION, 6 PLANs)
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Phase: 3 (Engagement and Discovery) — COMPLETE
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Next: Phase 4 — Pet Profiles & Discovery
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Status: Phase 3 all 6 plans done; 67 tests passing
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Progress: [███░░░░░░░] 29%
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Progress: [█████░░░░░] 57%
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## Phase 2 — Completed 2026-06-13
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@@ -0,0 +1,58 @@
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---
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phase: 03-engagement-discovery
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plan: 06
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status: complete
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completed: 2026-06-13
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---
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# Plan 03-06 Summary — Hashtag Search (SRCH-01)
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## What Was Built
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**hashtag-helpers.ts (server-only):**
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- `extractHashtags(text)`: /#(\w{1,50})/g regex, lowercase, deduplicate, max 30; lastIndex reset before+after (Pitfall 3)
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- `saveHashtags(prisma, postId, tags)`: upsert Hashtag + PostHashtag junction per tag; wrapped in caller's `.catch(()=>{})` so hashtag failure never blocks post creation
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**parse-caption.ts (client-safe):**
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- `parseCaption(caption)`: splits on `/(#\w{1,50})/g`, returns `CaptionSegment[]` (`{type:"text"}` | `{type:"hashtag"}`)
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**search.ts — `byHashtag` GREEN:**
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- `hashtag.findUnique({ where: { tag } })` → early-return `{ posts: [], nextCursor: null }` if not found
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- `postHashtag.findMany` with `post.{ pet, images(take:1) }` include + `postId { lt: cursor }` pagination
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- Returns `{ posts, nextCursor }`
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**posts.ts:** `extractHashtags(input.caption)` + `saveHashtags(...).catch(()=>{})` after `post.create`
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**reposts.ts:** same hashtag extraction from `originalPost.caption` after repost `post.create`
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**/hashtag/[tag]/page.tsx:**
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- `use(params)` for async Next.js 15 params; normalizes tag (strip #, lowercase)
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- `useInfiniteQuery(trpc.search.byHashtag.infiniteQueryOptions)` + `useInView` sentinel
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- `#{tag}` heading + approximate post count + 3-col grid (aspect-square, Layers2 on carousel)
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- Empty state: "No posts tagged #{tag} yet"
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**/search/page.tsx (Tags tab wired):**
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- Shared query input; normalizes to tag (strip #, lowercase) for Tags tab
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- `useQuery(trpc.search.byHashtag)` enabled when `normalizedTag.length >= 1`
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- Tags tab: same 3-col grid as hashtag page + empty/loading states
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**PostCard.tsx — clickable hashtags:**
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- `parseCaption(currentCaption).map(seg => ...)` replaces raw string in caption `<p>`
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- `type === "hashtag"` → `<Link href="/hashtag/{tag}">#{tag}</Link>` (text-orange-500 hover:underline)
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- `type === "text"` → `<span>{text}</span>`
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## Test Results
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- search.test.ts: 4/4 GREEN (2 pets + 2 byHashtag)
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- Full suite: 67 passing, 0 failing (5 todo), 1 pre-existing env failure (media-upload.test.ts — Supabase URL not set in test env)
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- `npx tsc --noEmit`: clean
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## Phase 3 Complete
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All 6 plans executed:
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- 03-01: Schema foundation (Reaction, Comment, Repost, Hashtag, PostHashtag)
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- 03-02: Paw Reactions GREEN + PawButton
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- 03-03: Comments GREEN + CommentSheet
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- 03-04: Paw-Back/Repost GREEN + RepostCard + PawBackButton
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- 03-05: Explore + pet search GREEN + /explore + /search + nav
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- 03-06: Hashtag search GREEN + /hashtag/[tag] + clickable captions
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@@ -0,0 +1,107 @@
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"use client";
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import { use } from "react";
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import { useInfiniteQuery } from "@tanstack/react-query";
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import { useInView } from "react-intersection-observer";
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import { useEffect } from "react";
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import { Layers2, Loader2 } from "lucide-react";
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import { useTRPC } from "@/trpc/client";
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import { getMediaUrl } from "@/lib/media-url";
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interface PageProps {
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params: Promise<{ tag: string }>;
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}
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export default function HashtagPage({ params }: PageProps) {
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const { tag } = use(params);
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const normalizedTag = tag.replace(/^#/, "").toLowerCase();
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const trpc = useTRPC();
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const { ref: sentinelRef, inView } = useInView({ threshold: 0 });
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const { data, fetchNextPage, hasNextPage, isFetchingNextPage, isLoading } =
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useInfiniteQuery(
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trpc.search.byHashtag.infiniteQueryOptions(
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{ tag: normalizedTag, limit: 24 },
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{
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getNextPageParam: (lastPage) => lastPage.nextCursor ?? undefined,
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}
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)
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);
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useEffect(() => {
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if (inView && hasNextPage && !isFetchingNextPage) {
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void fetchNextPage();
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}
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}, [inView, hasNextPage, isFetchingNextPage, fetchNextPage]);
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const posts = data?.pages.flatMap((p) => p.posts) ?? [];
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const totalApprox = data?.pages[0] ? posts.length + (hasNextPage ? "+" : "") : null;
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return (
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<div className="max-w-[640px] mx-auto px-4 py-6">
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<h1 className="text-xl font-semibold mb-1">#{normalizedTag}</h1>
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{totalApprox !== null && (
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<p className="text-sm text-muted-foreground mb-6">
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{totalApprox} posts
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</p>
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)}
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{isLoading ? (
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<div className="flex justify-center py-16">
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<Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
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</div>
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) : posts.length === 0 ? (
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<p className="text-sm text-muted-foreground text-center py-10">
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No posts tagged #{normalizedTag} yet
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</p>
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) : (
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<>
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<div className="grid grid-cols-3 gap-0.5">
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{posts.map((post) => {
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const p = post as {
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id: string;
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caption: string | null;
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images: Array<{ storageKey: string; position?: number }>;
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};
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const firstImage = p.images?.[0];
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const isCarousel = (p.images?.length ?? 0) > 1;
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const mediaUrl = firstImage ? getMediaUrl(firstImage.storageKey) : null;
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return (
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<div
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key={p.id}
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className="relative aspect-square overflow-hidden bg-muted"
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>
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{mediaUrl ? (
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// eslint-disable-next-line @next/next/no-img-element
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<img
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src={mediaUrl}
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alt={p.caption ?? "Post"}
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className="w-full h-full object-cover"
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/>
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) : (
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<div className="w-full h-full bg-muted" />
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)}
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{isCarousel && (
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<div className="absolute top-1.5 right-1.5">
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<Layers2 className="h-4 w-4 text-white drop-shadow" aria-hidden="true" />
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</div>
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)}
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</div>
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);
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})}
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</div>
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{/* Infinite scroll sentinel */}
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<div ref={sentinelRef} className="h-4" />
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{isFetchingNextPage && (
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<div className="flex justify-center py-4">
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<Loader2 className="h-5 w-5 animate-spin text-muted-foreground" />
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</div>
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)}
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</>
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)}
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</div>
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);
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}
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@@ -2,7 +2,7 @@
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import { useState, useCallback } from "react";
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import { useQuery } from "@tanstack/react-query";
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import { Search, Loader2 } from "lucide-react";
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import { Search, Layers2, Loader2 } from "lucide-react";
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import { useTRPC } from "@/trpc/client";
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import { useActivePet } from "@/context/ActivePetContext";
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import { Input } from "@/components/ui/input";
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@@ -11,27 +11,7 @@ import { Badge } from "@/components/ui/badge";
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import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
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import { FollowButton } from "@/components/social/FollowButton";
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import { getAvatarUrl } from "@/lib/avatar-url";
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function useDebounce<T>(value: T, delay: number): T {
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const [debounced, setDebounced] = useState(value);
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const timeoutRef = useState<ReturnType<typeof setTimeout> | null>(null);
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const update = useCallback(
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(v: T) => {
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if (timeoutRef[0]) clearTimeout(timeoutRef[0]);
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timeoutRef[1](setTimeout(() => setDebounced(v), delay));
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},
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// eslint-disable-next-line react-hooks/exhaustive-deps
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[delay]
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);
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// Update when value changes
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useState(() => {
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update(value);
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});
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return debounced;
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}
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import { getMediaUrl } from "@/lib/media-url";
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export default function SearchPage() {
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const trpc = useTRPC();
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@@ -40,7 +20,6 @@ export default function SearchPage() {
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const [query, setQuery] = useState("");
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const [debouncedQuery, setDebouncedQuery] = useState("");
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// Simple debounce via timeout
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const handleQueryChange = useCallback((e: React.ChangeEvent<HTMLInputElement>) => {
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const val = e.target.value;
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setQuery(val);
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@@ -48,16 +27,25 @@ export default function SearchPage() {
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return () => clearTimeout(timer);
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}, []);
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const enabled = debouncedQuery.trim().length >= 2;
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const trimmed = debouncedQuery.trim();
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const petsEnabled = trimmed.length >= 2;
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// Hashtag: strip leading # then require at least 1 char
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const normalizedTag = trimmed.replace(/^#/, "").toLowerCase();
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const tagsEnabled = normalizedTag.length >= 1;
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const { data: petResults, isLoading: loadingPets } = useQuery(
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trpc.search.pets.queryOptions(
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{ query: debouncedQuery.trim() },
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{ enabled }
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)
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trpc.search.pets.queryOptions({ query: trimmed }, { enabled: petsEnabled })
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);
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const pets = petResults?.pets ?? [];
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const { data: tagResults, isLoading: loadingTags } = useQuery(
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trpc.search.byHashtag.queryOptions(
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{ tag: normalizedTag },
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{ enabled: tagsEnabled }
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)
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);
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const tagPosts = tagResults?.posts ?? [];
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return (
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<div className="max-w-[640px] mx-auto px-4 py-6">
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<h1 className="text-xl font-semibold mb-4">Search</h1>
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@@ -82,7 +70,7 @@ export default function SearchPage() {
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{/* Pets tab */}
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<TabsContent value="pets">
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{!enabled ? (
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{!petsEnabled ? (
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<p className="text-sm text-muted-foreground text-center py-10">
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Type at least 2 characters to search
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</p>
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@@ -92,7 +80,7 @@ export default function SearchPage() {
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</div>
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) : pets.length === 0 ? (
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<p className="text-sm text-muted-foreground text-center py-10">
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No pets found for “{debouncedQuery}”
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No pets found for “{trimmed}”
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</p>
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) : (
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<div className="space-y-2">
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@@ -137,11 +125,53 @@ export default function SearchPage() {
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)}
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</TabsContent>
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{/* Tags tab — implemented in Plan 03-06 */}
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{/* Tags tab */}
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<TabsContent value="tags">
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<p className="text-sm text-muted-foreground text-center py-10">
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Hashtag search coming soon
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</p>
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{!tagsEnabled ? (
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<p className="text-sm text-muted-foreground text-center py-10">
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Type a hashtag to search
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</p>
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) : loadingTags ? (
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<div className="flex justify-center py-10">
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<Loader2 className="h-5 w-5 animate-spin text-muted-foreground" />
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</div>
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) : tagPosts.length === 0 ? (
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<p className="text-sm text-muted-foreground text-center py-10">
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No posts tagged #{normalizedTag}
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</p>
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) : (
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<div className="grid grid-cols-3 gap-0.5 mt-0.5">
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{tagPosts.map((post) => {
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const p = post as {
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id: string;
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caption: string | null;
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images: Array<{ storageKey: string }>;
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};
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const firstImage = p.images?.[0];
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const isCarousel = (p.images?.length ?? 0) > 1;
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const mediaUrl = firstImage ? getMediaUrl(firstImage.storageKey) : null;
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return (
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<div key={p.id} className="relative aspect-square overflow-hidden bg-muted">
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{mediaUrl ? (
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// eslint-disable-next-line @next/next/no-img-element
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<img
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src={mediaUrl}
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alt={p.caption ?? "Post"}
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className="w-full h-full object-cover"
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/>
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) : (
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<div className="w-full h-full bg-muted" />
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)}
|
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{isCarousel && (
|
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<div className="absolute top-1.5 right-1.5">
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<Layers2 className="h-4 w-4 text-white drop-shadow" aria-hidden="true" />
|
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</div>
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)}
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</div>
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);
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})}
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</div>
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)}
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</TabsContent>
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</Tabs>
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</div>
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@@ -34,8 +34,10 @@ import {
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} from "@/components/ui/alert-dialog";
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import { Textarea } from "@/components/ui/textarea";
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import { Button } from "@/components/ui/button";
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import Link from "next/link";
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import { getAvatarUrl } from "@/lib/avatar-url";
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import { getMediaUrl } from "@/lib/media-url";
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import { parseCaption } from "@/lib/parse-caption";
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import { PawRing } from "@/components/stories/PawRing";
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import { MilestoneCard } from "@/components/feed/MilestoneCard";
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import { PawButton } from "@/components/feed/PawButton";
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@@ -393,7 +395,7 @@ export function PostCard({ post, onDeleted }: PostCardProps) {
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</div>
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</div>
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) : (
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/* Caption display with 3-line clamp + more/less toggle */
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/* Caption display with 3-line clamp + clickable hashtags + more/less toggle */
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currentCaption && (
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<div>
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<p
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@@ -401,7 +403,19 @@ export function PostCard({ post, onDeleted }: PostCardProps) {
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!isCaptionExpanded ? "line-clamp-3" : ""
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}`}
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>
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{currentCaption}
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{parseCaption(currentCaption).map((seg, i) =>
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seg.type === "hashtag" ? (
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<Link
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key={i}
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href={`/hashtag/${seg.tag}`}
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className="text-orange-500 hover:underline"
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>
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#{seg.tag}
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</Link>
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) : (
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<span key={i}>{seg.text}</span>
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)
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)}
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</p>
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{/* more/less toggle — instant, no animation (UI-SPEC) */}
|
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{currentCaption.length > 140 && (
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@@ -0,0 +1,41 @@
|
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import "server-only";
|
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import type { PrismaClient } from "@prisma/client";
|
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|
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// g-flag regex is stateful — module-scoped so we reset lastIndex after each use
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const HASHTAG_REGEX = /#(\w{1,50})/g;
|
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const MAX_HASHTAGS = 30;
|
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|
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export function extractHashtags(text: string | null | undefined): string[] {
|
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if (!text) return [];
|
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HASHTAG_REGEX.lastIndex = 0; // reset before use (Pitfall 3)
|
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const matches: string[] = [];
|
||||
let match: RegExpExecArray | null;
|
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while ((match = HASHTAG_REGEX.exec(text)) !== null) {
|
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matches.push(match[1]!.toLowerCase());
|
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if (matches.length >= MAX_HASHTAGS) break;
|
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}
|
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HASHTAG_REGEX.lastIndex = 0; // reset after use
|
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return [...new Set(matches)];
|
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}
|
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|
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export async function saveHashtags(
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prisma: PrismaClient,
|
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postId: string,
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tags: string[]
|
||||
): Promise<void> {
|
||||
if (tags.length === 0) return;
|
||||
await Promise.all(
|
||||
tags.map(async (tag) => {
|
||||
const hashtag = await prisma.hashtag.upsert({
|
||||
where: { tag },
|
||||
create: { tag },
|
||||
update: {},
|
||||
});
|
||||
await prisma.postHashtag.upsert({
|
||||
where: { postId_hashtagId: { postId, hashtagId: hashtag.id } },
|
||||
create: { postId, hashtagId: hashtag.id },
|
||||
update: {},
|
||||
});
|
||||
})
|
||||
);
|
||||
}
|
||||
@@ -0,0 +1,16 @@
|
||||
export type CaptionSegment =
|
||||
| { type: "text"; text: string }
|
||||
| { type: "hashtag"; tag: string };
|
||||
|
||||
export function parseCaption(caption: string): CaptionSegment[] {
|
||||
const segments: CaptionSegment[] = [];
|
||||
const parts = caption.split(/(#\w{1,50})/g);
|
||||
for (const part of parts) {
|
||||
if (part.startsWith("#")) {
|
||||
segments.push({ type: "hashtag", tag: part.slice(1).toLowerCase() });
|
||||
} else if (part) {
|
||||
segments.push({ type: "text", text: part });
|
||||
}
|
||||
}
|
||||
return segments;
|
||||
}
|
||||
@@ -11,6 +11,7 @@ import { redis } from "@/lib/redis";
|
||||
import { fanOutPost } from "@/lib/feed-helpers";
|
||||
import { randomUUID } from "crypto";
|
||||
import type { PrismaClient } from "@prisma/client";
|
||||
import { extractHashtags, saveHashtags } from "@/lib/hashtag-helpers";
|
||||
|
||||
/**
|
||||
* Posts tRPC router — photo post creation, caption edit, deletion, feed hydration.
|
||||
@@ -134,6 +135,10 @@ export const postsRouter = router({
|
||||
// Fan-out to all followers' Redis feed inboxes (PHOTO-01)
|
||||
await fanOutPost(redis, post.id, input.petId, post.createdAt, ctx.prisma);
|
||||
|
||||
// Index hashtags — never fails post creation
|
||||
const tags = extractHashtags(input.caption ?? null);
|
||||
await saveHashtags(ctx.prisma, post.id, tags).catch(() => {});
|
||||
|
||||
return post;
|
||||
}),
|
||||
|
||||
|
||||
@@ -4,6 +4,7 @@ import { TRPCError } from "@trpc/server";
|
||||
import { router, protectedProcedure } from "@/trpc/init";
|
||||
import { redis } from "@/lib/redis";
|
||||
import { fanOutPost } from "@/lib/feed-helpers";
|
||||
import { extractHashtags, saveHashtags } from "@/lib/hashtag-helpers";
|
||||
import type { PrismaClient } from "@prisma/client";
|
||||
|
||||
async function assertPetOwnership(
|
||||
@@ -73,6 +74,10 @@ export const repostsRouter = router({
|
||||
|
||||
await fanOutPost(redis, post.id, input.reposterPetId, post.createdAt, ctx.prisma);
|
||||
|
||||
// Index hashtags from original post's caption — never fails repost creation
|
||||
const tags = extractHashtags(originalPost.caption);
|
||||
await saveHashtags(ctx.prisma, post.id, tags).catch(() => {});
|
||||
|
||||
return { postId: post.id };
|
||||
}),
|
||||
|
||||
|
||||
@@ -1,6 +1,5 @@
|
||||
import "server-only";
|
||||
import { z } from "zod";
|
||||
import { TRPCError } from "@trpc/server";
|
||||
import { router, protectedProcedure } from "@/trpc/init";
|
||||
|
||||
export const searchRouter = router({
|
||||
@@ -47,12 +46,38 @@ export const searchRouter = router({
|
||||
.max(50)
|
||||
.transform((s) => s.replace(/^#/, "").toLowerCase()),
|
||||
limit: z.number().int().min(1).max(30).default(20),
|
||||
cursor: z.string().optional(),
|
||||
cursor: z.string().optional(), // postId cursor
|
||||
})
|
||||
)
|
||||
.query(
|
||||
async (): Promise<{ posts: Record<string, unknown>[]; nextCursor: string | null }> => {
|
||||
throw new TRPCError({ code: "NOT_IMPLEMENTED" });
|
||||
}
|
||||
),
|
||||
.query(async ({ ctx, input }) => {
|
||||
const hashtag = await ctx.prisma.hashtag.findUnique({
|
||||
where: { tag: input.tag },
|
||||
});
|
||||
if (!hashtag) return { posts: [], nextCursor: null };
|
||||
|
||||
const rows = await ctx.prisma.postHashtag.findMany({
|
||||
where: {
|
||||
hashtagId: hashtag.id,
|
||||
...(input.cursor ? { postId: { lt: input.cursor } } : {}),
|
||||
},
|
||||
take: input.limit + 1,
|
||||
orderBy: { post: { createdAt: "desc" } },
|
||||
include: {
|
||||
post: {
|
||||
include: {
|
||||
pet: { select: { id: true, name: true, avatarKey: true } },
|
||||
images: { orderBy: { position: "asc" }, take: 1 },
|
||||
},
|
||||
},
|
||||
},
|
||||
});
|
||||
|
||||
const hasNextPage = rows.length > input.limit;
|
||||
if (hasNextPage) rows.pop();
|
||||
const posts = rows.map((r) => r.post);
|
||||
return {
|
||||
posts,
|
||||
nextCursor: hasNextPage ? posts[posts.length - 1]!.id : null,
|
||||
};
|
||||
}),
|
||||
});
|
||||
Reference in new issue
Block a user